roles/common: minor configuration of Debian 13 SSH

Tweak some of the new OpenSSH per-source penalty settings on Debian
13. For now only adjusting the source network masks and reusing the
list of IPs to exempt from fail2ban.

These being built in makes them easier to use, but I think I will
end up sticking with fail2ban for the heavy lifting because it per-
sists across restarts of the daemon, whereas OpenSSH's doesn't. I
will monitor OpenSSH on Debian 13 to see how to best use it along
side fail2ban.

Pipfile

@@ -10,4 +10,4 @@ ansible = "*"
 ansible-lint = "*"
 
 [requires]
-python_version = "3.10"
+python_version = "3.13"

README.md

@@ -4,7 +4,7 @@ Ansible playbook for base and initial configuration of the web server hosting my
 ## Assumptions
 Before you can run this, a few things are assumed:
 
-- You have a clean, minimal Ubuntu 20.04 or Debian 11/12 host up and running
+- You have a clean, minimal Debian 12 host up and running
 - Python 3 is installed on the remote server (requirement of Ansible)
 - You have a user account with password-less SSH access to the machine
 - You have sudo privileges on the remote host

ansible.cfg

@@ -13,12 +13,6 @@ interpreter_python=auto
 # See: https://docs.ansible.com/ansible/latest/user_guide/connection_details.html#managing-host-key-checking
 host_key_checking = False
 
-ansible_managed = This file is managed by Ansible.%n
-  template: {file}
-  date: %Y-%m-%d %H:%M:%S
-  user: {uid}
-  host: {host}
-
 [privilege_escalation]
 # instead of using -K
 become_ask_pass=True

group_vars/all

@@ -3,4 +3,12 @@
 
 tls_cipher_suite: "ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384"
 
+ansible_managed: |-
+  This file is managed by Ansible.
+
+  {{ 'template: ' + template_path }}
+  {{ 'date: ' + (template_mtime | string) }}
+  {{ 'user: ' + template_uid }}
+  {{ 'host: ' + template_host }}
+
 # vim: set ts=2 sw=2:

group_vars/web

@@ -8,4 +8,7 @@ webserver: nginx
 extra_fail2ban_filters:
   - nginx
 
+# root prefix for all web servers
+web_root_prefix: /var/www
+
 # vim: set ts=2 sw=2:

host_vars/nomad03

@@ -1,88 +0,0 @@
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host_vars/web22

@@ -1,138 +1,141 @@
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roles/caddy/defaults/main.yml

@@ -2,7 +2,7 @@
 # file: roles/caddy/defaults/main.yml
 
 # parent directory of vhost document roots
-caddy_root_prefix: /var/www
+caddy_root_prefix: "{{ web_root_prefix }}"
 
 # Email address to use for the ACME account managing the site's certificates.
 # Not sure what Caddy does if this doesn't exist.

roles/caddy/handlers/main.yml

@@ -3,7 +3,7 @@
 
 # I'm currently not sure when we need to restart versus reload
 - name: reload caddy
-  ansible.builtin.systemd:
+  ansible.builtin.systemd_service:
     name: caddy
     state: reloaded
 

roles/caddy/tasks/main.yml

@@ -18,7 +18,7 @@
     dest: /etc/apt/keyrings/caddy-stable-archive-keyring.key
     owner: root
     group: root
-    mode: 0644
+    mode: "0644"
   register: download_caddy_signing_key
   when: not caddy_signing_key_stat.stat.exists
   tags:
@@ -27,7 +27,7 @@
 
 - name: Add Caddy stable repo
   ansible.builtin.apt_repository:
-    repo: 'deb [signed-by=/etc/apt/keyrings/caddy-stable-archive-keyring.key] https://dl.cloudsmith.io/public/caddy/stable/deb/debian any-version main'
+    repo: deb [signed-by=/etc/apt/keyrings/caddy-stable-archive-keyring.key] https://dl.cloudsmith.io/public/caddy/stable/deb/debian any-version main
     filename: caddy-stable
     state: present
   register: add_caddy_apt_repository
@@ -38,9 +38,7 @@
 - name: Update apt cache
   ansible.builtin.apt: # noqa no-handler
     update_cache: true
-  when:
-    (download_caddy_signing_key.status_code is defined and download_caddy_signing_key.status_code == 200) or
-    add_caddy_apt_repository is changed
+  when: (download_caddy_signing_key.status_code is defined and download_caddy_signing_key.status_code == 200) or add_caddy_apt_repository is changed
   tags:
     - packages
     - caddy
@@ -59,7 +57,7 @@
   ansible.builtin.template:
     src: etc/caddy/Caddyfile.j2
     dest: /etc/caddy/Caddyfile
-    mode: 0755
+    mode: "0755"
     owner: root
     group: root
   notify:
@@ -70,9 +68,10 @@
   ansible.builtin.file:
     path: /etc/caddy/conf.d
     state: directory
-    mode: 0755
+    mode: "0755"
     owner: root
     group: root
+  tags: caddy
 
 # TODO: the variable is still named nginx_vhosts
 - name: Configure Caddy virtual hosts

roles/caddy/tasks/vhosts.yml

@@ -1,10 +1,9 @@
 ---
-
 - name: Configure vhosts
   ansible.builtin.template:
     src: etc/caddy/conf.d/vhost.j2
     dest: /etc/caddy/conf.d/{{ item.domain_name }}
-    mode: 0644
+    mode: "0644"
     owner: root
     group: root
   loop: "{{ nginx_vhosts }}"

roles/caddy/templates/etc/caddy/conf.d/vhost.j2

@@ -8,6 +8,12 @@
 {% set needs_php      = item.needs_php | default(false) %}
 {% set has_gitea      = item.has_gitea | default(false) %}
 {% set static_site    = item.static_site | default(false) %}
+{# Allow sites to override the document root #}
+{% if item.document_root is defined %}
+{%   set document_root = item.document_root %}
+{% else %}
+{%   set document_root = (caddy_root_prefix, domain_name) | ansible.builtin.path_join %}
+{% endif %}
 
 {% if domain_aliases %}
 {#   domain_aliases is a string, so we split on space #}
@@ -21,15 +27,20 @@
 {{ domain_name }} {
     {% if has_gitea %}
     reverse_proxy :3000
-    {% endif %}
+    {% elif static_site -%}
+    root * {{ document_root }}
 
-    {% if static_site -%}
-    root * {{ item.document_root }}
-
-    encode zstd gzip
+    encode
 
     file_server
-    {% endif %}
+    {% elif has_wordpress -%}
+    root * {{ document_root }}
+    encode
+    {%   if ansible_distribution_major_version is version('12', '==') -%}
+    php_fastcgi unix//run/php/php8.2-fpm-{{ domain_name }}.sock
+    {%   endif -%}
+    file_server
+    {% endif -%}
 
     import security-headers
 }

roles/common/defaults/main.yml

@@ -8,7 +8,7 @@ fail2ban_maxretry: 6
 fail2ban_findtime: 3600
 # 2 weeks in seconds
 fail2ban_bantime: 1209600
-fail2ban_ignoreip: 127.0.0.1/8 172.26.0.0/16 192.168.5.0/24
+fail2ban_ignoreip: 127.0.0.0/8
 
 # Disable SSH passwords. Must use SSH keys. This is OK because we add the keys
 # before re-configuring the SSH daemon to disable passwords.

roles/common/files/abuseipdb-ipv6.nft

@@ -1,5 +0,0 @@
-#!/usr/sbin/nft -f
-
-define ABUSEIPDB_IPV6 = {
-fd21:3523:74e0:7301::
-}

roles/common/files/aggregate-cidr-addresses.pl

@@ -1,89 +0,0 @@
-#!/usr/bin/perl
-#
-# aggregate-cidr-addresses - combine a list of CIDR address blocks
-# Copyright (C) 2001,2007 Mark Suter <suter@zwitterion.org>
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see L<http://www.gnu.org/licenses/>.
-#
-# [MJS 22 Oct 2001] Aggregate CIDR addresses
-# [MJS  9 Oct 2007] Overlap idea from Anthony Ledesma at theplanet dot com.
-# [MJS 16 Feb 2012] Prompted to clarify license by Alexander Talos-Zens - at at univie dot ac dot at
-# [MJS 21 Feb 2012] IPv6 fixes by Alexander Talos-Zens
-# [MJS 21 Feb 2012] Split ranges into prefixes (fixes a 10+ year old bug)
-
-use strict;
-use warnings;
-use English qw( -no_match_vars );
-use Net::IP;
-
-## Read in all the IP addresses
-my @addrs = map { Net::IP->new($_) or die "$PROGRAM_NAME: Not an IP: \"$_\"."; }
-    map { / \A \s* (.+?) \s* \Z /msix and $1; } <>;
-
-## Split any ranges into prefixes
-@addrs = map {
-    defined $_->prefixlen ? $_ : map { Net::IP->new($_) }
-        $_->find_prefixes
-} @addrs;
-
-## Sort the IP addresses
-@addrs = sort { $a->version <=> $b->version or $a->bincomp( 'lt', $b ) ? -1 : $a->bincomp( 'gt', $b ) ? 1 : 0 } @addrs;
-
-## Handle overlaps
-my $count   = 0;
-my $current = $addrs[0];
-foreach my $next ( @addrs[ 1 .. $#addrs ] ) {
-    my $r = $current->overlaps($next);
-    if ( $current->version != $next->version or $r == $IP_NO_OVERLAP ) {
-        $current = $next;
-        $count++;
-    }
-    elsif ( $r == $IP_A_IN_B_OVERLAP ) {
-        $current = $next;
-        splice @addrs, $count, 1;
-    }
-    elsif ( $r == $IP_B_IN_A_OVERLAP or $r == $IP_IDENTICAL ) {
-        splice @addrs, $count + 1, 1;
-    }
-    else {
-        die "$PROGRAM_NAME: internal error - overlaps() returned an unexpected value!\n";
-    }
-}
-
-## Keep aggregating until we don't change anything
-my $change = 1;
-while ($change) {
-    $change = 0;
-    my @new_addrs = ();
-    $current = $addrs[0];
-    foreach my $next ( @addrs[ 1 .. $#addrs ] ) {
-        if ( my $total = $current->aggregate($next) ) {
-            $current = $total;
-            $change  = 1;
-        }
-        else {
-            push @new_addrs, $current;
-            $current = $next;
-        }
-    }
-    push @new_addrs, $current;
-    @addrs = @new_addrs;
-}
-
-## Print out the IP addresses
-foreach (@addrs) {
-    print $_->prefix(), "\n";
-}
-
-# $Id: aggregate-cidr-addresses,v 1.9 2012/02/21 10:14:22 suter Exp suter $

roles/common/files/etc/cron-apt/3-download

@@ -1,2 +0,0 @@
-autoclean -y
-upgrade -y -o APT::Get::Show-Upgraded=true

roles/common/files/etc/cron-apt/config

@@ -1,5 +0,0 @@
-# Configuration for cron-apt. For further information about the possible
-# configuration settings see the README file.
-
-MAILON="never"
-OPTIONS="-o quiet=1 -o Dir::Etc::SourceList=/etc/apt/security.sources.list -o Dir::Etc::SourceParts=\"/dev/null\""

roles/common/files/etc/sudoers.d/provisioning

@@ -1 +0,0 @@
-provisioning   ALL=(ALL)  ALL

roles/common/files/firehol_level1-ipv4.nft

@@ -1,5 +1,5 @@
 #!/usr/sbin/nft -f
 
-define SPAMHAUS_IPV4 = {
+define FIREHOL_LEVEL1_IPV4 = {
 192.168.254.254/32
 }

roles/common/files/spamhaus-ipv6.nft

@@ -1,5 +0,0 @@
-#!/usr/sbin/nft -f
-
-define SPAMHAUS_IPV6 = {
-fd21:3523:74e0:7301::/64
-}

roles/common/files/update-abusech-nftables.service

@@ -1,27 +0,0 @@
-[Unit]
-Description=Update Abuse.ch SSL Blacklist IPs
-# This service will fail if nftables is not running so we use Requires to make
-# sure that nftables is started.
-Requires=nftables.service
-# Make sure the network is up and nftables is started
-After=network-online.target nftables.service
-Wants=network-online.target update-abusech-nftables.timer
-
-[Service]
-# https://www.ctrl.blog/entry/systemd-service-hardening.html
-# Doesn't need access to /home or /root
-ProtectHome=true
-# Possibly only works on Ubuntu 18.04+
-ProtectKernelTunables=true
-ProtectSystem=full
-# Newer systemd can use ReadWritePaths to list files, but this works everywhere
-ReadWriteDirectories=/etc/nftables
-PrivateTmp=true
-WorkingDirectory=/var/tmp
-
-SyslogIdentifier=update-abusech-nftables
-ExecStart=/usr/bin/flock -x update-abusech-nftables.lck \
-          /usr/local/bin/update-abusech-nftables.sh
-
-[Install]
-WantedBy=multi-user.target

roles/common/files/update-abusech-nftables.sh

@@ -1,63 +0,0 @@
-#!/usr/bin/env bash
-#
-# update-abuseipdb-nftables.sh v0.0.1
-#
-# Download IP addresses seen using a blacklisted SSL certificate and load them
-# into nftables sets. As of 2021-07-28 these appear to only be IPv4.
-# 
-# See: https://sslbl.abuse.ch/blacklist
-#
-# Copyright (C) 2021 Alan Orth
-#
-# SPDX-License-Identifier: GPL-3.0-only
-
-# Exit on first error
-set -o errexit
-
-abusech_ipv4_set_path=/etc/nftables/abusech-ipv4.nft
-abusech_list_temp=$(mktemp)
-
-echo "Downloading Abuse.sh SSL Blacklist IPs"
-
-abusech_response=$(curl -s -G -w "%{http_code}\n" https://sslbl.abuse.ch/blacklist/sslipblacklist.txt --output "$abusech_list_temp")
-
-if [[ $abusech_response -ne 200 ]]; then
-	echo "Abuse.ch responded: HTTP $abusech_response"
-
-	exit 1
-fi
-
-if [[ -f "$abusech_list_temp" ]]; then
-    echo "Processing IPv4 list"
-
-    abusech_ipv4_list_temp=$(mktemp)
-    abusech_ipv4_set_temp=$(mktemp)
-
-    # Remove comments, DOS carriage returns, and IPv6 addresses (even though
-    # Abuse.ch seems to only have IPv4 addresses, let's not break our shit on
-    # that assumption some time down the line).
-    sed -e '/#/d' -e 's/
-//' -e '/:/d' "$abusech_list_temp" > "$abusech_ipv4_list_temp"
-
-    echo "Building abusech-ipv4 set"
-    cat << NFT_HEAD > "$abusech_ipv4_set_temp"
-#!/usr/sbin/nft -f
-
-define ABUSECH_IPV4 = {
-NFT_HEAD
-
-    while read -r network; do
-        # nftables doesn't mind if the last element in the set has a trailing
-        # comma so we don't need to do anything special here.
-        echo "$network," >> "$abusech_ipv4_set_temp"
-    done < $abusech_ipv4_list_temp
-
-    echo "}" >> "$abusech_ipv4_set_temp"
-
-    install -m 0600 "$abusech_ipv4_set_temp" "$abusech_ipv4_set_path"
-
-    rm -f "$abusech_list_temp" "$abusech_ipv4_list_temp" "$abusech_ipv4_set_temp"
-fi
-
-echo "Reloading nftables"
-# The abusech nftables sets are included by nftables.conf

roles/common/files/update-abusech-nftables.timer

@@ -1,12 +0,0 @@
-[Unit]
-Description=Update Abuse.ch SSL Blacklist IPs
-
-[Timer]
-# Once a day at midnight
-OnCalendar=*-*-* 00:00:00
-# Add a random delay of 0–3600 seconds
-RandomizedDelaySec=3600
-Persistent=true
-
-[Install]
-WantedBy=timers.target

roles/common/files/update-firehol-nftables.service

@@ -0,0 +1,24 @@
+[Unit]
+Description=Update FireHOL lists
+# Make sure the network is up
+After=network-online.target
+Wants=network-online.target update-firehol-nftables.timer
+
+[Service]
+# https://www.ctrl.blog/entry/systemd-service-hardening.html
+# Doesn't need access to /home or /root
+ProtectHome=true
+# Possibly only works on Ubuntu 18.04+
+ProtectKernelTunables=true
+ProtectSystem=full
+# Newer systemd can use ReadWritePaths to list files, but this works everywhere
+ReadWriteDirectories=/etc/nftables
+PrivateTmp=true
+WorkingDirectory=/var/tmp
+
+SyslogIdentifier=update-firehol-nftables
+ExecStart=/usr/bin/flock -x update-firehol-nftables.lck \
+          /usr/local/bin/update-firehol-nftables.sh
+
+[Install]
+WantedBy=multi-user.target

roles/common/files/update-firehol-nftables.timer

@@ -1,5 +1,5 @@
 [Unit]
-Description=Update Spamhaus lists
+Description=Update FireHOL lists
 
 [Timer]
 # Once a day at midnight

roles/common/files/update-spamhaus-nftables.service

@@ -1,27 +0,0 @@
-[Unit]
-Description=Update Spamhaus lists
-# This service will fail if nftables is not running so we use Requires to make
-# sure that nftables is started.
-Requires=nftables.service
-# Make sure the network is up and nftables is started
-After=network-online.target nftables.service
-Wants=network-online.target update-spamhaus-nftables.timer
-
-[Service]
-# https://www.ctrl.blog/entry/systemd-service-hardening.html
-# Doesn't need access to /home or /root
-ProtectHome=true
-# Possibly only works on Ubuntu 18.04+
-ProtectKernelTunables=true
-ProtectSystem=full
-# Newer systemd can use ReadWritePaths to list files, but this works everywhere
-ReadWriteDirectories=/etc/nftables
-PrivateTmp=true
-WorkingDirectory=/var/tmp
-
-SyslogIdentifier=update-spamhaus-nftables
-ExecStart=/usr/bin/flock -x update-spamhaus-nftables.lck \
-          /usr/local/bin/update-spamhaus-nftables.sh
-
-[Install]
-WantedBy=multi-user.target

roles/common/files/update-spamhaus-nftables.sh

@@ -1,91 +0,0 @@
-#!/usr/bin/env bash
-#
-# update-spamhaus-nftables.sh v0.0.1
-#
-# Download Spamhaus DROP lists and load them into nftables sets.
-# 
-# See: https://www.spamhaus.org/drop/
-#
-# Copyright (C) 2021 Alan Orth
-#
-# SPDX-License-Identifier: GPL-3.0-only
-
-# Exit on first error
-set -o errexit
-
-spamhaus_ipv4_set_path=/etc/nftables/spamhaus-ipv4.nft
-spamhaus_ipv6_set_path=/etc/nftables/spamhaus-ipv6.nft
-
-function download() {
-    echo "Downloading $1"
-    wget -q -O - "https://www.spamhaus.org/drop/$1" > "$1"
-}
-
-download drop.txt
-download edrop.txt
-download dropv6.txt
-
-if [[ -f "drop.txt" && -f "edrop.txt" ]]; then
-    echo "Processing IPv4 DROP lists"
-
-    spamhaus_ipv4_list_temp=$(mktemp)
-    spamhaus_ipv4_set_temp=$(mktemp)
-
-    # Extract all networks from drop.txt and edrop.txt, skipping blank lines and
-    # comments. Use aggregate-cidr-addresses.pl to merge overlapping IPv4 CIDR
-    # ranges to work around a firewalld bug.
-    #
-    # See: https://bugzilla.redhat.com/show_bug.cgi?id=1836571
-    cat drop.txt edrop.txt | sed -e '/^$/d' -e '/^;.*/d' -e 's/[[:space:]];[[:space:]].*//' | aggregate-cidr-addresses.pl > "$spamhaus_ipv4_list_temp"
-
-    echo "Building spamhaus-ipv4 set"
-    cat << NFT_HEAD > "$spamhaus_ipv4_set_temp"
-#!/usr/sbin/nft -f
-
-define SPAMHAUS_IPV4 = {
-NFT_HEAD
-
-    while read -r network; do
-        # nftables doesn't mind if the last element in the set has a trailing
-        # comma so we don't need to do anything special here.
-        echo "$network," >> "$spamhaus_ipv4_set_temp"
-    done < $spamhaus_ipv4_list_temp
-
-    echo "}" >> "$spamhaus_ipv4_set_temp"
-
-    install -m 0600 "$spamhaus_ipv4_set_temp" "$spamhaus_ipv4_set_path"
-
-    rm -f "$spamhaus_ipv4_list_temp" "$spamhaus_ipv4_set_temp"
-fi
-
-if [[ -f "dropv6.txt" ]]; then
-    echo "Processing IPv6 DROP lists"
-
-    spamhaus_ipv6_list_temp=$(mktemp)
-    spamhaus_ipv6_set_temp=$(mktemp)
-
-    sed -e '/^$/d' -e '/^;.*/d' -e 's/[[:space:]];[[:space:]].*//' dropv6.txt > "$spamhaus_ipv6_list_temp"
-
-    echo "Building spamhaus-ipv6 set"
-    cat << NFT_HEAD > "$spamhaus_ipv6_set_temp"
-#!/usr/sbin/nft -f
-
-define SPAMHAUS_IPV6 = {
-NFT_HEAD
-
-    while read -r network; do
-        echo "$network," >> "$spamhaus_ipv6_set_temp"
-    done < $spamhaus_ipv6_list_temp
-
-    echo "}" >> "$spamhaus_ipv6_set_temp"
-
-    install -m 0600 "$spamhaus_ipv6_set_temp" "$spamhaus_ipv6_set_path"
-
-    rm -f "$spamhaus_ipv6_list_temp" "$spamhaus_ipv6_set_temp"
-fi
-
-echo "Reloading nftables"
-# The spamhaus nftables sets are included by nftables.conf
-/usr/sbin/nft -f /etc/nftables.conf
-
-rm -v drop.txt edrop.txt dropv6.txt

roles/common/handlers/main.yml

@@ -1,20 +1,27 @@
 ---
 # ansible.builtin.file: roles/common/handlers/main.yml
 
-- name: reload sshd
-  ansible.builtin.systemd: name={{ sshd_service_name }} state=reloaded
+- name: Reload sshd
+  ansible.builtin.systemd_service:
+    name: "{{ sshd_service_name }}"
+    state: reloaded
 
-- name: reload sysctl
-  command: sysctl -p /etc/sysctl.conf
+- name: Reload sysctl
+  ansible.builtin.command: sysctl -p /etc/sysctl.conf
 
-- name: reload systemd
-  ansible.builtin.systemd: daemon_reload=true
+- name: Reload systemd
+  ansible.builtin.systemd_service:
+    daemon_reload: true
 
-- name: restart nftables
-  ansible.builtin.systemd: name=nftables state=restarted
+- name: Restart nftables
+  ansible.builtin.systemd_service:
+    name: nftables
+    state: restarted
 
 # 2021-09-28: note to self to keep fail2ban at the end, as handlers are executed
 # in the order they are defined, not in the order they are listed in the task's
 # notify statement and we must restart fail2ban after updating the firewall.
-- name: restart fail2ban
-  ansible.builtin.systemd: name=fail2ban state=restarted
+- name: Restart fail2ban
+  ansible.builtin.systemd_service:
+    name: fail2ban
+    state: restarted

roles/common/tasks/cron-apt.yml

@@ -1,12 +1,17 @@
 ---
+- name: Remove cron-apt
+  ansible.builtin.apt:
+    name: cron-apt
+    state: absent
+    cache_valid_time: 3600
 
-- name: Configure cron-apt (config)
-  ansible.builtin.copy: src={{ item.src }} dest={{ item.dest }} mode={{ item.mode }} owner={{ item.owner }} group={{ item.group }}
+- name: Remove cron-apt configs
+  ansible.builtin.file:
+    path: "{{ item }}"
+    state: absent
   loop:
-    - { src: 'etc/cron-apt/config', dest: '/etc/cron-apt/config', mode: '0644', owner: 'root', group: 'root' }
-    - { src: 'etc/cron-apt/3-download', dest: '/etc/cron-apt/action.d/3-download', mode: '0644', owner: 'root', group: 'root' }
-
-- name: Configure cron-apt (security)
-  ansible.builtin.template: src=security.sources.list.j2 dest=/etc/apt/security.sources.list mode=0644 owner=root group=root
+    - /etc/cron-apt/config
+    - /etc/cron-apt/action.d/3-download
+    - /etc/apt/security.sources.list
 
 # vim: set ts=2 sw=2:

roles/common/tasks/fail2ban.yml

@@ -1,29 +1,39 @@
 ---
+- name: Install fail2ban
+  when: ansible_distribution_version is version('11', '>=')
+  ansible.builtin.apt:
+    name:
+      - fail2ban
+      - python3-systemd
+    state: present
+    cache_valid_time: 3600
+
 - name: Configure fail2ban sshd filter
   ansible.builtin.template:
     src: etc/fail2ban/jail.d/sshd.local.j2
     dest: /etc/fail2ban/jail.d/sshd.local
     owner: root
-    mode: 0644
-  notify: restart fail2ban
+    mode: "0644"
+  notify: Restart fail2ban
 
 - name: Configure fail2ban nginx filter
   when:
+    - webserver is defined and webserver == 'nginx'
     - extra_fail2ban_filters is defined
     - "'nginx' in extra_fail2ban_filters"
   ansible.builtin.template:
     src: etc/fail2ban/jail.d/nginx.local.j2
     dest: /etc/fail2ban/jail.d/nginx.local
     owner: root
-    mode: 0644
-  notify: restart fail2ban
+    mode: "0644"
+  notify: Restart fail2ban
 
 - name: Create fail2ban service override directory
   ansible.builtin.file:
     path: /etc/systemd/system/fail2ban.service.d
     state: directory
     owner: root
-    mode: 0755
+    mode: "0755"
 
 # See Arch Linux's example: https://wiki.archlinux.org/index.php/Fail2ban
 - name: Configure fail2ban service override
@@ -31,13 +41,13 @@
     src: etc/systemd/system/fail2ban.service.d/override.conf.j2
     dest: /etc/systemd/system/fail2ban.service.d/override.conf
     owner: root
-    mode: 0644
+    mode: "0644"
   notify:
-    - reload systemd
-    - restart fail2ban
+    - Reload systemd
+    - Restart fail2ban
 
 - name: Start and enable fail2ban service
-  ansible.builtin.systemd:
+  ansible.builtin.systemd_service:
     name: fail2ban
     state: started
     enabled: true

roles/common/tasks/firewall.yml

@@ -0,0 +1,25 @@
+---
+# Debian 11+ will use nftables directly, with no firewalld.
+
+- name: Install Debian firewall packages
+  when: ansible_distribution_version is version('11', '>=')
+  ansible.builtin.apt:
+    name: nftables
+    state: present
+    cache_valid_time: 3600
+
+- name: Remove iptables on newer Debian
+  when: ansible_distribution_version is version('11', '>=')
+  ansible.builtin.apt:
+    pkg: iptables
+    state: absent
+
+- name: Configure nftables
+  when: ansible_distribution_version is version('11', '>=')
+  ansible.builtin.include_tasks: nftables.yml
+
+- name: Configure fail2ban
+  when: ansible_distribution_version is version('9', '>=')
+  ansible.builtin.include_tasks: fail2ban.yml
+
+# vim: set sw=2 ts=2:

roles/common/tasks/firewall_Debian.yml

@@ -1,116 +0,0 @@
----
-# Debian 11+ will use nftables directly, with no firewalld.
-
-- block:
-  - name: Install Debian firewall packages
-    when: ansible_distribution_major_version is version('11', '>=')
-    ansible.builtin.package:
-      name:
-        - fail2ban
-        - libnet-ip-perl # for aggregate-cidr-addresses.pl
-        - nftables
-        - python3-systemd
-        - curl # for nftables update scripts
-      state: present
-      cache_valid_time: 3600
-
-  - name: Remove iptables on newer Debian
-    when: ansible_distribution_major_version is version('11', '>=')
-    ansible.builtin.apt:
-      pkg: iptables
-      state: absent
-
-  - name: Copy nftables.conf
-    when: ansible_distribution_major_version is version('11', '>=')
-    ansible.builtin.template:
-      src: nftables.conf.j2
-      dest: /etc/nftables.conf
-      owner: root
-      mode: 0644
-    notify:
-      - restart nftables
-      - restart fail2ban
-
-  - name: Create /etc/nftables extra config directory
-    when: ansible_distribution_major_version is version('11', '>=')
-    ansible.builtin.file:
-      path: /etc/nftables
-      state: directory
-      owner: root
-      mode: 0755
-
-  - name: Copy extra nftables configuration files
-    when: ansible_distribution_major_version is version('11', '>=')
-    ansible.builtin.copy:
-      src: "{{ item.src }}"
-      dest: "/etc/nftables/{{ item.src }}"
-      owner: root
-      group: root
-      mode: 0644
-      force: "{{ item.force }}"
-    loop:
-      - { src: "spamhaus-ipv4.nft", force: "no" }
-      - { src: "spamhaus-ipv6.nft", force: "no" }
-      - { src: "abusech-ipv4.nft", force: "no" }
-      - { src: "abuseipdb-ipv4.nft", force: "yes" }
-      - { src: "abuseipdb-ipv6.nft", force: "yes" }
-    notify:
-      - restart nftables
-      - restart fail2ban
-
-  - name: Copy nftables update scripts
-    when: ansible_distribution_version is version('11', '>=')
-    ansible.builtin.copy:
-      src: "{{ item }}"
-      dest: "/usr/local/bin/{{ item }}"
-      mode: 0755
-      owner: root
-      group: root
-    loop:
-      - update-spamhaus-nftables.sh
-      - aggregate-cidr-addresses.pl
-      - update-abusech-nftables.sh
-
-  - name: Copy nftables systemd units
-    when: ansible_distribution_version is version('11', '>=')
-    ansible.builtin.copy:
-      src: "{{ item }}"
-      dest: "/etc/systemd/system/{{ item }}"
-      mode: 0644
-      owner: root
-      group: root
-    loop:
-      - update-spamhaus-nftables.service
-      - update-spamhaus-nftables.timer
-      - update-abusech-nftables.service
-      - update-abusech-nftables.timer
-    register: nftables_systemd_units
-
-  # need to reload to pick up service/timer/environment changes
-  - name: Reload systemd daemon
-    ansible.builtin.systemd:
-      daemon_reload: true
-    when: nftables_systemd_units is changed
-
-  - name: Start and enable nftables update timers
-    when: ansible_distribution_version is version('11', '>=')
-    ansible.builtin.systemd:
-      name: "{{ item }}"
-      state: started
-      enabled: true
-    loop:
-      - update-spamhaus-nftables.timer
-      - update-abusech-nftables.timer
-
-  - name: Start and enable nftables
-    when: ansible_distribution_major_version is version('11', '>=')
-    ansible.builtin.systemd:
-      name: nftables
-      state: started
-      enabled: true
-
-  - ansible.builtin.include_tasks: fail2ban.yml
-    when: ansible_distribution_major_version is version('9', '>=')
-  tags: firewall
-
-# vim: set sw=2 ts=2:

roles/common/tasks/firewall_Ubuntu.yml

@@ -1,114 +0,0 @@
----
-# Ubuntu 20.04 will use nftables directly, with no firewalld.
-
-- block:
-  - name: Install Ubuntu firewall packages
-    ansible.builtin.package:
-      name:
-        - fail2ban
-        - libnet-ip-perl # for aggregate-cidr-addresses.pl
-        - nftables
-        - python3-systemd
-        - curl # for nftables update scripts
-      state: present
-      cache_valid_time: 3600
-
-  - name: Remove ufw
-    ansible.builtin.package:
-      name: ufw
-      state: absent
-
-  - name: Copy nftables.conf
-    when: ansible_distribution_version is version('20.04', '>=')
-    ansible.builtin.template:
-      src: nftables.conf.j2
-      dest: /etc/nftables.conf
-      owner: root
-      mode: 0644
-    notify:
-      - restart nftables
-      - restart fail2ban
-
-  - name: Create /etc/nftables extra config directory
-    when: ansible_distribution_version is version('20.04', '>=')
-    ansible.builtin.file:
-      path: /etc/nftables
-      state: directory
-      owner: root
-      mode: 0755
-
-  - name: Copy extra nftables configuration files
-    when: ansible_distribution_version is version('20.04', '>=')
-    ansible.builtin.copy:
-      src: "{{ item.src }}"
-      dest: "/etc/nftables/{{ item.src }}"
-      owner: root
-      group: root
-      mode: 0644
-      force: "{{ item.force }}"
-    loop:
-      - { src: "spamhaus-ipv4.nft", force: "no" }
-      - { src: "spamhaus-ipv6.nft", force: "no" }
-      - { src: "abusech-ipv4.nft", force: "no" }
-      - { src: "abuseipdb-ipv4.nft", force: "yes" }
-      - { src: "abuseipdb-ipv6.nft", force: "yes" }
-    notify:
-      - restart nftables
-      - restart fail2ban
-
-  - name: Copy nftables update scripts
-    when: ansible_distribution_version is version('20.04', '>=')
-    ansible.builtin.copy:
-      src: "{{ item }}"
-      dest: "/usr/local/bin/{{ item }}"
-      mode: 0755
-      owner: root
-      group: root
-    loop:
-      - update-spamhaus-nftables.sh
-      - aggregate-cidr-addresses.pl
-      - update-abusech-nftables.sh
-
-  - name: Copy nftables systemd units
-    when: ansible_distribution_version is version('20.04', '>=')
-    ansible.builtin.copy:
-      src: "{{ item }}"
-      dest: "/etc/systemd/system/{{ item }}"
-      mode: 0644
-      owner: root
-      group: root
-    loop:
-        - update-spamhaus-nftables.service
-        - update-spamhaus-nftables.timer
-        - update-abusech-nftables.service
-        - update-abusech-nftables.timer
-    register: nftables_systemd_units
-
-  # need to reload to pick up service/timer/environment changes
-  - name: Reload systemd daemon
-    ansible.builtin.systemd:
-      daemon_reload: true
-    when: nftables_systemd_units is changed
-
-  - name: Start and enable nftables update timers
-    when: ansible_distribution_version is version('20.04', '>=')
-    ansible.builtin.systemd:
-      name: "{{ item }}"
-      state: started
-      enabled: true
-    loop:
-      - update-spamhaus-nftables.timer
-      - update-abusech-nftables.timer
-
-  - name: Start and enable nftables
-    when: ansible_distribution_version is version('20.04', '>=')
-    ansible.builtin.systemd:
-      name: nftables
-      state: started
-      enabled: true
-
-  - ansible.builtin.include_tasks: fail2ban.yml
-    when: ansible_distribution_version is version('16.04', '>=')
-  tags: firewall
-
-# vim: set sw=2 ts=2:

roles/common/tasks/main.yml

@@ -1,6 +1,6 @@
 ---
 - name: Import OS-specific variables
-  ansible.builtin.include_vars: "vars/{{ ansible_distribution }}.yml"
+  ansible.builtin.include_vars: vars/{{ ansible_distribution }}.yml
   tags: always
 
 - name: Configure network time
@@ -8,23 +8,11 @@
   tags: ntp
 
 - name: Install common packages
-  ansible.builtin.include_tasks: packages_Debian.yml
-  when: ansible_distribution == 'Debian'
-  tags: packages
-
-- name: Install common packages
-  ansible.builtin.include_tasks: packages_Ubuntu.yml
-  when: ansible_distribution == 'Ubuntu'
+  ansible.builtin.include_tasks: packages.yml
   tags: packages
 
 - name: Configure firewall
-  ansible.builtin.include_tasks: firewall_Debian.yml
-  when: ansible_distribution == 'Debian'
-  tags: firewall
-
-- name: Configure firewall
-  ansible.builtin.include_tasks: firewall_Ubuntu.yml
-  when: ansible_distribution == 'Ubuntu'
+  ansible.builtin.import_tasks: firewall.yml
   tags: firewall
 
 - name: Configure secure shell daemon
@@ -34,13 +22,23 @@
 # containers identify as virtualization hosts, which makes this tricky, because we have actual Debian VM hosts!
 - name: Reconfigure /etc/sysctl.conf
   when: ansible_virtualization_role != 'host'
-  ansible.builtin.template: src=sysctl_{{ ansible_distribution }}.j2 dest=/etc/sysctl.conf owner=root group=root mode=0644
+  ansible.builtin.template:
+    src: "sysctl_{{ ansible_distribution }}.j2"
+    dest: /etc/sysctl.conf
+    owner: root
+    group: root
+    mode: "0644"
   notify:
-    - reload sysctl
+    - Reload sysctl
   tags: sysctl
 
 - name: Set I/O scheduler
-  ansible.builtin.template: src=etc/udev/rules.d/60-scheduler.rules.j2 dest=/etc/udev/rules.d/60-scheduler.rules owner=root group=root mode=0644
+  ansible.builtin.template:
+    src: etc/udev/rules.d/60-scheduler.rules.j2
+    dest: /etc/udev/rules.d/60-scheduler.rules
+    owner: root
+    group: root
+    mode: "0644"
   tags: udev
 
 - name: Copy admin SSH keys

roles/common/tasks/nftables.yml

@@ -0,0 +1,96 @@
+---
+# Common nftables tasks for Debian 11 and Debian 12.
+
+- name: Copy nftables.conf
+  ansible.builtin.template:
+    src: nftables.conf.j2
+    dest: /etc/nftables.conf
+    owner: root
+    mode: "0644"
+  notify:
+    - Restart nftables
+    - Restart fail2ban
+
+- name: Create /etc/nftables extra config directory
+  ansible.builtin.file:
+    path: /etc/nftables
+    state: directory
+    owner: root
+    mode: "0755"
+
+- name: Copy extra nftables configuration files
+  ansible.builtin.copy:
+    src: "{{ item.src }}"
+    dest: /etc/nftables/{{ item.src }}
+    owner: root
+    group: root
+    mode: "0644"
+    force: "{{ item.force }}"
+  loop:
+    - { src: firehol_level1-ipv4.nft, force: false }
+  notify:
+    - Restart nftables
+    - Restart fail2ban
+
+- name: Copy nftables update scripts
+  ansible.builtin.template:
+    src: update-firehol-nftables.sh.j2
+    dest: /usr/local/bin/update-firehol-nftables.sh
+    mode: "0755"
+    owner: root
+    group: root
+
+- name: Remove deprecated data and scripts
+  ansible.builtin.file:
+    path: "{{ item }}"
+    state: absent
+  loop:
+    - /etc/nftables/spamhaus-ipv4.nft
+    - /etc/nftables/spamhaus-ipv6.nft
+    - /etc/nftables/abuseipdb-ipv4.nft
+    - /etc/nftables/abuseipdb-ipv6.nft
+    - /etc/nftables/abusech-ipv4.nft
+    - /usr/local/bin/update-abusech-nftables.sh
+    - /usr/local/bin/update-spamhaus-nftables.sh
+    - /etc/systemd/system/update-abusech-nftables.service
+    - /etc/systemd/system/update-abusech-nftables.timer
+    - /etc/systemd/system/update-spamhaus-nftables.service
+    - /etc/systemd/system/update-spamhaus-nftables.timer
+    - /usr/local/bin/aggregate-cidr-addresses.pl
+  notify:
+    - Restart nftables
+    - Restart fail2ban
+
+- name: Copy nftables systemd units
+  ansible.builtin.copy:
+    src: "{{ item }}"
+    dest: /etc/systemd/system/{{ item }}
+    mode: "0644"
+    owner: root
+    group: root
+  loop:
+    - update-firehol-nftables.service
+    - update-firehol-nftables.timer
+  register: nftables_systemd_units
+
+# need to reload to pick up service/timer/environment changes
+- name: Reload systemd daemon
+  when: nftables_systemd_units is changed
+  ansible.builtin.systemd_service: # noqa no-handler
+    daemon_reload: true
+
+- name: Start and enable nftables update timers
+  ansible.builtin.systemd_service:
+    name: "{{ item }}"
+    state: started
+    enabled: true
+  loop:
+    - update-firehol-nftables.timer
+
+- name: Start and enable nftables
+  ansible.builtin.systemd_service:
+    name: nftables
+    state: started
+    enabled: true
+
+# vim: set sw=2 ts=2:

roles/common/tasks/ntp.yml

@@ -1,27 +1,40 @@
 ---
-# Hosts running Ubuntu 16.04+ and Debian 9+ use systemd init system and should
-# use systemd-timesyncd as a network time client instead of the standalone ntp
-# client.
+# Hosts running Debian 9+ use systemd init system and can use systemd-timesyncd
+# as a network time client instead of the standalone ntp client.
 
 - name: Set timezone
-  when: timezone is defined and ansible_service_mgr == 'systemd'
-  command: /usr/bin/timedatectl set-timezone {{ timezone }}
+  when:
+    - timezone is defined
+    - ansible_service_mgr == 'systemd'
+  community.general.timezone:
+    name: "{{ timezone }}"
   tags: timezone
 
 # Apparently some cloud images don't have this installed by default. From what
 # I can see on existing servers, systemd-timesyncd is a standalone package on
-# Ubuntu 20.04 and Debian 11.
+# Debian 11 and Debian 12.
 - name: Install systemd-timesyncd
-  when: (ansible_distribution == 'Ubuntu' and ansible_distribution_version is version('20.04', '==')) or
-        (ansible_distribution == 'Debian' and ansible_distribution_version is version('11', '>='))
-  ansible.builtin.apt: name=systemd-timesyncd state=present cache_valid_time=3600
+  when: ansible_distribution_version is version('11', '>=')
+  ansible.builtin.apt:
+    name: systemd-timesyncd
+    state: present
+    cache_valid_time: 3600
 
 - name: Start and enable systemd's NTP client
   when: ansible_service_mgr == 'systemd'
-  ansible.builtin.systemd: name=systemd-timesyncd state=started enabled=true
+  ansible.builtin.systemd_service:
+    name: systemd-timesyncd
+    state: started
+    enabled: true
 
-- name: Uninstall ntp on modern Ubuntu/Debian
-  ansible.builtin.apt: name=ntp state=absent
-  when: ansible_service_mgr == 'systemd'
+# On Debian 12 ntp doesn't conflict with systemd-timesyncd so we should try to
+# remove it to be sure.
+- name: Uninstall ntp on Debian 12
+  when:
+    - ansible_service_mgr == 'systemd'
+    - ansible_distribution_major_version is version('12', '==')
+  ansible.builtin.apt:
+    name: ntp
+    state: absent
 
 # vim: set ts=2 sw=2:

roles/common/tasks/packages.yml

@@ -1,20 +1,7 @@
 ---
-
 - name: Configure Debian packages
+  tags: packages
   block:
-    # Create directory for third-party package signing keys. Required on distros
-    # older than Debian 12 / Ubuntu 22.04.
-    #
-    # See: https://wiki.debian.org/DebianRepository/UseThirdParty
-    - name: Create /etc/apt/keyrings
-      file:
-        path: /etc/apt/keyrings
-        mode: 0755
-        owner: root
-        group: root
-        state: directory
-      when: ansible_distribution_major_version is version('12', '<')
-
     # Scaleway seems to use a weird sources.list format as of Debian 12?
     - name: Check for weird Debian sources
       ansible.builtin.stat:
@@ -22,10 +9,15 @@
       register: weird_debian_sources_stat
 
     - name: Configure apt mirror
-      ansible.builtin.template: src=sources.list.j2 dest=/etc/apt/sources.list owner=root group=root mode=0644
       when:
         - ansible_architecture != 'armv7l'
         - not weird_debian_sources_stat
+      ansible.builtin.template:
+        src: sources.list.j2
+        dest: /etc/apt/sources.list
+        owner: root
+        group: root
+        mode: "0644"
 
     - name: Set fact for base packages
       ansible.builtin.set_fact:
@@ -36,7 +28,6 @@
           - iotop
           - htop
           - strace
-          - cron-apt
           - safe-rm
           - debian-goodies
           - mosh
@@ -48,16 +39,19 @@
           - zstd
           - rsync
           - lsof
+          - unattended-upgrades
 
     - name: Install base packages
-      ansible.builtin.apt: name={{ base_packages }} state=present cache_valid_time=3600
+      ansible.builtin.apt:
+        name: "{{ base_packages }}"
+        state: present
+        cache_valid_time: 3600
 
-    - name: Configure cron-apt
-      ansible.builtin.import_tasks: cron-apt.yml
+    - name: Remove cron-apt
       tags: cron-apt
+      ansible.builtin.import_tasks: cron-apt.yml
 
     - name: Install tarsnap
       ansible.builtin.import_tasks: tarsnap.yml
-  tags: packages
 
 # vim: set sw=2 ts=2:

roles/common/tasks/packages_Ubuntu.yml

@@ -1,106 +0,0 @@
----
-
-- name: Configure Ubuntu packages
-  block:
-    # Create directory for third-party package signing keys. Required on distros
-    # older than Debian 12 / Ubuntu 22.04.
-    #
-    # See: https://wiki.debian.org/DebianRepository/UseThirdParty
-    - name: Create /etc/apt/keyrings
-      file:
-        path: /etc/apt/keyrings
-        mode: 0755
-        owner: root
-        group: root
-        state: directory
-      when: ansible_distribution_major_version is version('22.04', '<')
-
-    - name: Configure apt mirror
-      ansible.builtin.template: src=sources.list.j2 dest=/etc/apt/sources.list owner=root group=root mode=0644
-      when: ansible_architecture != 'armv7l'
-
-    - name: Upgrade base OS
-      ansible.builtin.apt: upgrade=dist cache_valid_time=3600
-
-    - name: Set Ubuntu base packages
-      ansible.builtin.set_fact:
-        ubuntu_base_packages:
-        - git
-        - git-lfs
-        - tmux
-        - iotop
-        - htop
-        - strace
-        - cron-apt
-        - safe-rm
-        - debian-goodies
-        - mosh
-        - python-pycurl # for ansible's apt_repository
-        - vim
-        - unzip
-        - apt-transport-https # for https support in apt
-        - zstd
-        - rsync
-        - lsof
-
-    - name: Install base packages
-      ansible.builtin.apt: pkg={{ ubuntu_base_packages }} state=present cache_valid_time=3600
-
-    # We have to remove snaps one by one in a specific order because some depend
-    # on others. Only after that can we remove the corresponding system packages.
-    - name: Remove lxd snap
-      community.general.snap: name=lxd state=absent
-      when: ansible_distribution_version is version('20.04', '==')
-      ignore_errors: true
-
-    - name: Remove core18 snap
-      community.general.snap: name=core18 state=absent
-      when: ansible_distribution_version is version('20.04', '==')
-      ignore_errors: true
-
-    - name: Remove snapd snap
-      community.general.snap: name=snapd state=absent
-      when: ansible_distribution_version is version('20.04', '==')
-      ignore_errors: true
-
-    - name: Set fact for packages to remove (Ubuntu 20.04)
-      ansible.builtin.set_fact:
-        ubuntu_annoying_packages:
-          - whoopsie # security (CIS 4.1)
-          - apport   # security (CIS 4.1)
-          - command-not-found # annoying
-          - command-not-found-data # annoying
-          - python3-commandnotfound # annoying
-          - snapd # annoying (Ubuntu >= 16.04)
-          - lxd-agent-loader # annoying (Ubuntu 20.04)
-      when: ansible_distribution_version is version('20.04', '==')
-
-    - name: Remove packages
-      ansible.builtin.apt: name={{ ubuntu_annoying_packages }} state=absent purge=true
-
-    - name: Disable annoying Canonical spam in MOTD
-      ansible.builtin.file: path={{ item }} mode=0644 state=absent
-      loop:
-        - /etc/update-motd.d/99-esm # Ubuntu 14.04
-        - /etc/update-motd.d/10-help-text # Ubuntu 14.04+
-        - /etc/update-motd.d/50-motd-news # Ubuntu 18.04+
-        - /etc/update-motd.d/80-esm # Ubuntu 18.04+
-        - /etc/update-motd.d/80-livepatch # Ubuntu 18.04+
-      ignore_errors: true
-
-    - name: Disable annoying Canonical spam in MOTD
-      ansible.builtin.systemd: name={{ item }} state=stopped enabled=no
-      when: ansible_service_mgr == 'systemd'
-      loop:
-        - motd-news.service
-        - motd-news.timer
-
-    - name: Configure cron-apt
-      ansible.builtin.import_tasks: cron-apt.yml
-      tags: cron-apt
-
-    - name: Install tarsnap
-      ansible.builtin.import_tasks: tarsnap.yml
-  tags: packages
-
-# vim: set sw=2 ts=2:

roles/common/tasks/ssh-keys.yml

@@ -1,9 +1,11 @@
 ---
 - name: Zero .ssh/authorized_keys for provisioning user
-  ansible.builtin.file: dest={{ provisioning_user.home }}/.ssh/authorized_keys state=absent
+  ansible.builtin.file:
+    dest: "{{ provisioning_user.home }}/.ssh/authorized_keys"
+    state: absent
 
 - name: Add public keys to authorized_keys
-  ansible.posix.authorized_key: { user: '{{ provisioning_user.name }}', key: "{{ lookup('file',item) }}" }
+  ansible.posix.authorized_key: { user: "{{ provisioning_user.name }}", key: "{{ lookup('file', item) }}" }
   with_fileglob:
     # use descriptive names for keys, like: aorth-mzito-rsa.pub
     - ssh-pub-keys/*.pub

roles/common/tasks/sshd.yml

@@ -1,17 +1,26 @@
 ---
-
-# SSH configs don't change in Debian minor versions
+# Only override the system sshd configuration on older Debian.
 - name: Reconfigure /etc/ssh/sshd_config
-  ansible.builtin.template: src=sshd_config_{{ ansible_distribution }}-{{ ansible_distribution_major_version }}.j2 dest=/etc/ssh/sshd_config owner=root group=root mode=0600
-  when: ansible_distribution == 'Debian'
-  notify: reload sshd
+  when: ansible_distribution_version is version('12', '<=')
+  ansible.builtin.template:
+    src: "sshd_config_{{ ansible_distribution }}-{{ ansible_distribution_major_version }}.j2"
+    dest: /etc/ssh/sshd_config
+    owner: root
+    group: root
+    mode: "0600"
+  notify: Reload sshd
 
-# Ubuntu is the only distro we have where SSH version is very different from 14.04 -> 14.10,
-# ie with new ciphers supported etc.
-- name: Reconfigure /etc/ssh/sshd_config
-  ansible.builtin.template: src=sshd_config_{{ ansible_distribution }}-{{ ansible_distribution_version }}.j2 dest=/etc/ssh/sshd_config owner=root group=root mode=0600
-  when: ansible_distribution == 'Ubuntu'
-  notify: reload sshd
+# Newer OpenSSH versions support including extra configuration. The includes
+# happen at the beginning of the file and the first value to be read is used.
+- name: Configure sshd_config.d overrides
+  when: ansible_distribution_version is version('13', '>=')
+  ansible.builtin.template:
+    src: etc/ssh/sshd_config.d/01-{{ ansible_distribution }}-{{ ansible_distribution_major_version }}.conf.j2
+    dest: /etc/ssh/sshd_config.d/01-custom.conf
+    owner: root
+    group: root
+    mode: "0600"
+  notify: Reload sshd
 
 # See: WeakDH (2015): https://weakdh.org/sysadmin.html
 - name: Remove small Diffie-Hellman SSH moduli
@@ -24,28 +33,30 @@
       register: check_unsafe_moduli
 
     - name: Extract safe Diffie-Hellman SSH moduli
+      when: check_unsafe_moduli.stdout | length > 0
       ansible.builtin.shell:
         cmd: awk '$5 >= 3071' moduli > moduli.safe
         chdir: /etc/ssh
         creates: moduli.safe
-      when: check_unsafe_moduli.stdout | length > 0
       register: extract_safe_moduli
 
     - name: Replace unsafe Diffie-Hellman SSH moduli
+      when: extract_safe_moduli is changed
       ansible.builtin.command:
         cmd: mv moduli.safe moduli
         chdir: /etc/ssh
       register: replace_small_moduli
-      when: extract_safe_moduli is changed
-      notify: reload sshd
+      notify: Reload sshd
 
 - name: Remove DSA and ECDSA host keys
-  ansible.builtin.file: name=/etc/ssh/{{ item }} state=absent
+  ansible.builtin.file:
+    name: "/etc/ssh/{{ item }}"
+    state: absent
   loop:
     - ssh_host_dsa_key
     - ssh_host_dsa_key.pub
     - ssh_host_ecdsa_key
     - ssh_host_ecdsa_key.pub
-  notify: reload sshd
+  notify: Reload sshd
 
 # vim: set sw=2 ts=2:

roles/common/tasks/tarsnap.yml

@@ -1,24 +1,45 @@
 ---
-- name: Add Tarsnap apt mirror
-  ansible.builtin.template: src=tarsnap_sources.list.j2 dest=/etc/apt/sources.list.d/tarsnap.list owner=root group=root mode=0644
-  register: add_tarsnap_apt_repository
-  when: ansible_architecture != 'armv7l'
+- name: Check tarsnap apt signing key
+  ansible.builtin.stat:
+    path: /etc/apt/keyrings/tarsnap-deb-packaging-key.asc
+  register: tarsnap_signing_key_stat
 
-- name: Add GPG key for Tarsnap
-  ansible.builtin.apt_key: id=0xF608BA1BFB5CE8F8CAB088359F084BEE7F938A76 url=https://pkg.tarsnap.com/tarsnap-deb-packaging-key.asc state=present
-  register: add_tarsnap_apt_key
+- name: Download tarsnap apt signing key
+  when: not tarsnap_signing_key_stat.stat.exists
+  ansible.builtin.get_url:
+    url: https://pkg.tarsnap.com/tarsnap-deb-packaging-key.asc
+    dest: /etc/apt/keyrings/tarsnap-deb-packaging-key.asc
+    owner: root
+    group: root
+    mode: "0644"
+  register: download_tarsnap_signing_key
+
+- name: Add tarsnap.org repo
+  when: ansible_architecture != 'armv7l'
+  ansible.builtin.template:
+    src: tarsnap_sources.list.j2
+    dest: /etc/apt/sources.list.d/tarsnap.list
+    owner: root
+    group: root
+    mode: "0644"
+  register: add_tarsnap_apt_repository
 
 - name: Update apt cache
-  ansible.builtin.apt:
+  when: (download_tarsnap_signing_key.status_code is defined and download_tarsnap_signing_key.status_code == 200) or add_tarsnap_apt_repository is changed
+  ansible.builtin.apt: # noqa no-handler
     update_cache: true
-  when:
-    add_tarsnap_apt_key is changed or
-    add_tarsnap_apt_repository is changed
 
 - name: Install tarsnap
-  ansible.builtin.apt: pkg=tarsnap cache_valid_time=3600
+  ansible.builtin.apt:
+    pkg: tarsnap
+    cache_valid_time: 3600
 
 - name: Copy tarsnaprc
-  ansible.builtin.copy: src=tarsnaprc dest=/root/.tarsnaprc owner=root group=root mode=0600
+  ansible.builtin.copy:
+    src: tarsnaprc
+    dest: /root/.tarsnaprc
+    owner: root
+    group: root
+    mode: "0600"
 
 # vim: set sw=2 ts=2:

roles/common/templates/etc/ssh/sshd_config.d/01-Debian-13.conf.j2

@@ -0,0 +1,40 @@
+{{ ansible_managed | comment }}
+
+HostKey /etc/ssh/ssh_host_ed25519_key
+
+# LogLevel VERBOSE logs user's key fingerprint on login. Needed to have a clear
+# audit track of which key was using to log in.
+LogLevel VERBOSE
+
+MaxAuthTries 4
+
+AuthorizedKeysFile	.ssh/authorized_keys
+
+# To disable tunneled clear text passwords, change to no here!
+{% if ssh_password_authentication == 'disabled' %}
+PasswordAuthentication no
+{% else %}
+PasswordAuthentication yes
+{% endif %}
+
+X11Forwarding no
+
+# Based on the ssh-audit profile for Debian 13, but with but with all algos with
+# less than 256 bits removed, as NSA's Suite B removed them years ago and the
+# new (2018) CNSA suite is 256 bits and up.
+#
+# See: ssh-audit.py -P "Hardened Debian 13 (version 1)"
+# See: https://en.wikipedia.org/wiki/Commercial_National_Security_Algorithm_Suite
+Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes256-ctr
+MACs hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com
+KexAlgorithms mlkem768x25519-sha256,sntrup761x25519-sha512,sntrup761x25519-sha512@openssh.com
+
+{% if ssh_allowed_users is defined and ssh_allowed_users %}
+AllowUsers {{ ssh_allowed_users|join(" ") }} {{ provisioning_user.name }}
+{% endif %}
+
+PerSourcePenaltyExemptList {{ fail2ban_ignoreip | replace(" ", ",") }}
+
+# Mask to use for IPv4 and IPv6 respectively when applying network penalties.
+# The default is 32:128.
+PerSourceNetBlockSize 24:56

roles/common/templates/etc/systemd/system/fail2ban.service.d/override.conf.j2

@@ -1,15 +1,19 @@
+[Unit]
+# If nftables is stopped or restarted, propagate to fail2ban as well
+PartOf=nftables.service
+
 [Service]
 PrivateDevices=yes
 PrivateTmp=yes
 ProtectHome=read-only
-{% if (ansible_distribution == 'Ubuntu' and ansible_distribution_major_version is version('18','>=')) or (ansible_distribution == 'Debian' and ansible_distribution_major_version is version('11','>=')) %}
+{% if ansible_distribution_version is version('11','>=') %}
 ProtectSystem=strict
 {% else %}
 {# Older systemd versions don't have ProtectSystem=strict #}
 ProtectSystem=full
 {% endif %}
 NoNewPrivileges=yes
-{% if (ansible_distribution == 'Ubuntu' and ansible_distribution_major_version is version('18','>=')) or (ansible_distribution == 'Debian' and ansible_distribution_major_version is version('11','>=')) %}
+{% if ansible_distribution_version is version('11','>=') %}
 ReadWritePaths=-/var/run/fail2ban
 ReadWritePaths=-/var/lib/fail2ban
 ReadWritePaths=-/var/log/fail2ban.log

roles/common/templates/nftables.conf.j2

@@ -5,47 +5,18 @@
 
 flush ruleset
 
-# Lists updated daily by update-spamhaus-nftables.sh
-include "/etc/nftables/spamhaus-ipv4.nft"
-include "/etc/nftables/spamhaus-ipv6.nft"
-
-# Lists updated monthly (manually)
-include "/etc/nftables/abuseipdb-ipv4.nft"
-include "/etc/nftables/abuseipdb-ipv6.nft"
-
-# Lists updated daily by update-abusech-nftables.sh
-include "/etc/nftables/abusech-ipv4.nft"
+# List updated daily by update-firehol-nftables.sh
+include "/etc/nftables/firehol_level1-ipv4.nft"
 
 # Notes:
 #   - tables hold chains, chains hold rules
 #   - inet is for both ipv4 and ipv6
 table inet filter {
-    set spamhaus-ipv4 {
+    set firehol_level1-ipv4 {
         type ipv4_addr
         # if the set contains prefixes we need to use the interval flag
         flags interval
-        elements = $SPAMHAUS_IPV4
-    }
-
-    set spamhaus-ipv6 {
-        type ipv6_addr
-        flags interval
-        elements = $SPAMHAUS_IPV6
-    }
-
-    set abusech-ipv4 {
-        type ipv4_addr
-        elements = $ABUSECH_IPV4
-    }
-
-    set abuseipdb-ipv4 {
-        type ipv4_addr
-        elements = $ABUSEIPDB_IPV4
-    }
-
-    set abuseipdb-ipv6 {
-        type ipv6_addr
-        elements = $ABUSEIPDB_IPV6
+        elements = $FIREHOL_LEVEL1_IPV4
     }
 
     chain input {
@@ -55,13 +26,7 @@ table inet filter {
 
         ct state invalid counter drop comment "Early drop of invalid connections"
 
-        ip saddr @spamhaus-ipv4 counter drop comment "Early drop of incoming packets matching spamhaus-ipv4 list"
-        ip6 saddr @spamhaus-ipv6 counter drop comment "Early drop of incoming packets matching spamhaus-ipv6 list"
-
-        ip saddr @abusech-ipv4 counter drop comment "Early drop of packets matching abusech-ipv4 list"
-
-        ip saddr @abuseipdb-ipv4 counter drop comment "Early drop of incoming packets matching abuseipdb-ipv4 list"
-        ip6 saddr @abuseipdb-ipv6 counter drop comment "Early drop of incoming packets matching abuseipdb-ipv6 list"
+        ip saddr @firehol_level1-ipv4 counter drop comment "Early drop of incoming packets matching firehol_level1-ipv4 list"
 
         iifname lo accept comment "Allow from loopback"
 
@@ -105,12 +70,6 @@ table inet filter {
     chain output {
         type filter hook output priority 0;
 
-        ip daddr @spamhaus-ipv4 counter drop comment "Drop outgoing packets matching spamhaus-ipv4 list"
-        ip6 daddr @spamhaus-ipv6 counter drop comment "Drop outgoing packets matching spamhaus-ipv6 list"
-
-        ip daddr @abusech-ipv4 counter drop comment "Drop outgoing packets matching abusech-ipv4 list"
-
-        ip daddr @abuseipdb-ipv4 counter drop comment "Drop outgoing packets matching abuseipdb-ipv4 list"
-        ip6 daddr @abuseipdb-ipv6 counter drop comment "Drop outgoing packets matching abuseipdb-ipv6 list"
+        ip daddr @firehol_level1-ipv4 counter drop comment "Drop outgoing packets matching firehol_level1-ipv4 list"
     }
 }

roles/common/templates/security.sources.list.j2

@@ -1,5 +0,0 @@
-{% if ansible_distribution == 'Ubuntu' %}
-deb http://security.ubuntu.com/ubuntu {{ ansible_distribution_release }}-security main restricted universe multiverse
-{% elif ansible_distribution == 'Debian' %}
-deb http://security.debian.org/debian-security {{ ansible_distribution_release }}/updates main contrib non-free
-{% endif %}

roles/common/templates/sources.list.j2

@@ -1,16 +1,6 @@
-{% if ansible_distribution == 'Ubuntu' %}
-{% set apt_mirror    = apt_mirror | default("ubuntu.mirror.ac.ke") %}
-
-deb http://{{ apt_mirror }}/ubuntu/ {{ ansible_distribution_release }} main restricted universe multiverse
-deb http://{{ apt_mirror }}/ubuntu/ {{ ansible_distribution_release }}-updates main restricted universe multiverse
-deb http://security.ubuntu.com/ubuntu/ {{ ansible_distribution_release }}-security main restricted universe multiverse
-
-{% else %}
 {% set apt_mirror    = apt_mirror | default('deb.debian.org') %}
 deb http://{{ apt_mirror }}/debian/ {{ ansible_distribution_release }} main contrib non-free
 
 deb http://security.debian.org/debian-security {{ ansible_distribution_release }}-security main contrib non-free
 
 deb http://{{ apt_mirror }}/debian/ {{ ansible_distribution_release }}-updates main contrib non-free
-
-{% endif %} {# ansible_distribution #}

roles/common/templates/sshd_config_Ubuntu-20.04.j2

@@ -1,143 +0,0 @@
-#	$OpenBSD: sshd_config,v 1.103 2018/04/09 20:41:22 tj Exp $
-
-# This is the sshd server system-wide configuration file.  See
-# sshd_config(5) for more information.
-
-# This sshd was compiled with PATH=/usr/bin:/bin:/usr/sbin:/sbin
-
-# The strategy used for options in the default sshd_config shipped with
-# OpenSSH is to specify options with their default value where
-# possible, but leave them commented.  Uncommented options override the
-# default value.
-
-Include /etc/ssh/sshd_config.d/*.conf
-
-#Port 22
-#AddressFamily any
-#ListenAddress 0.0.0.0
-#ListenAddress ::
-
-#HostKey /etc/ssh/ssh_host_rsa_key
-HostKey /etc/ssh/ssh_host_ed25519_key
-
-# Ciphers and keying
-#RekeyLimit default none
-
-# Logging
-#SyslogFacility AUTH
-# LogLevel VERBOSE logs user's key fingerprint on login. Needed to have a clear audit track of which key was using to log in.
-LogLevel VERBOSE
-
-# Authentication:
-
-#LoginGraceTime 2m
-PermitRootLogin prohibit-password
-#StrictModes yes
-MaxAuthTries 4
-#MaxSessions 10
-
-#PubkeyAuthentication yes
-
-# The default is to check both .ssh/authorized_keys and .ssh/authorized_keys2
-# but this is overridden so installations will only check .ssh/authorized_keys
-AuthorizedKeysFile	.ssh/authorized_keys
-
-#AuthorizedPrincipalsFile none
-
-#AuthorizedKeysCommand none
-#AuthorizedKeysCommandUser nobody
-
-# For this to work you will also need host keys in /etc/ssh/ssh_known_hosts
-#HostbasedAuthentication no
-# Change to yes if you don't trust ~/.ssh/known_hosts for
-# HostbasedAuthentication
-#IgnoreUserKnownHosts no
-# Don't read the user's ~/.rhosts and ~/.shosts files
-#IgnoreRhosts yes
-
-# To disable tunneled clear text passwords, change to no here!
-{% if ssh_password_authentication == 'disabled' %}
-PasswordAuthentication no
-{% else %}
-PasswordAuthentication yes
-{% endif %}
-#PermitEmptyPasswords no
-
-# Change to yes to enable challenge-response passwords (beware issues with
-# some PAM modules and threads)
-ChallengeResponseAuthentication no
-
-# Kerberos options
-#KerberosAuthentication no
-#KerberosOrLocalPasswd yes
-#KerberosTicketCleanup yes
-#KerberosGetAFSToken no
-
-# GSSAPI options
-#GSSAPIAuthentication no
-#GSSAPICleanupCredentials yes
-#GSSAPIStrictAcceptorCheck yes
-#GSSAPIKeyExchange no
-
-# Set this to 'yes' to enable PAM authentication, account processing,
-# and session processing. If this is enabled, PAM authentication will
-# be allowed through the ChallengeResponseAuthentication and
-# PasswordAuthentication.  Depending on your PAM configuration,
-# PAM authentication via ChallengeResponseAuthentication may bypass
-# the setting of "PermitRootLogin without-password".
-# If you just want the PAM account and session checks to run without
-# PAM authentication, then enable this but set PasswordAuthentication
-# and ChallengeResponseAuthentication to 'no'.
-UsePAM yes
-
-#AllowAgentForwarding yes
-#AllowTcpForwarding yes
-#GatewayPorts no
-X11Forwarding no
-#X11DisplayOffset 10
-#X11UseLocalhost yes
-#PermitTTY yes
-PrintMotd no
-#PrintLastLog yes
-#TCPKeepAlive yes
-#PermitUserEnvironment no
-#Compression delayed
-#ClientAliveInterval 0
-#ClientAliveCountMax 3
-#UseDNS no
-#PidFile /var/run/sshd.pid
-#MaxStartups 10:30:100
-#PermitTunnel no
-#ChrootDirectory none
-#VersionAddendum none
-
-# no default banner path
-#Banner none
-
-# Allow client to pass locale environment variables
-AcceptEnv LANG LC_*
-
-# override default of no subsystems
-Subsystem sftp	/usr/lib/openssh/sftp-server
-
-# Example of overriding settings on a per-user basis
-#Match User anoncvs
-#	X11Forwarding no
-#	AllowTcpForwarding no
-#	PermitTTY no
-#	ForceCommand cvs server
-
-# Originally from: https://stribika.github.io/2015/01/04/secure-secure-shell.html
-# ... but with ciphers and MACs with < 256 bits removed, as NSA's Suite B now
-# does away with these! See: https://www.nsa.gov/ia/programs/suiteb_cryptography/index.shtml
-Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes256-ctr
-MACs hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com
-KexAlgorithms curve25519-sha256,curve25519-sha256@libssh.org,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256
-
-{% if ssh_allowed_users is defined and ssh_allowed_users %}
-# Is there a list of allowed users?
-# Is it populated? (An empty list is 'None', which evaluates as False in Python)
-# merge the items of a list into one string using a space as a separator
-# http://jinja.pocoo.org/docs/dev/templates/#join
-AllowUsers {{ ssh_allowed_users|join(" ") }} {{ provisioning_user.name }}
-{% endif %}

roles/common/templates/sysctl_Ubuntu.j2

@@ -1,100 +0,0 @@
-#
-# /etc/sysctl.conf - Configuration file for setting system variables
-# See /etc/sysctl.d/ for additional system variables
-# See sysctl.conf (5) for information.
-#
-
-#kernel.domainname = example.com
-
-# Uncomment the following to stop low-level messages on console
-#kernel.printk = 3 4 1 3
-
-##############################################################3
-# Functions previously found in netbase
-#
-
-# Uncomment the next two lines to enable Spoof protection (reverse-path filter)
-# Turn on Source Address Verification in all interfaces to
-# prevent some spoofing attacks
-#net.ipv4.conf.default.rp_filter=1
-#net.ipv4.conf.all.rp_filter=1
-
-# Uncomment the next line to enable TCP/IP SYN cookies
-# See http://lwn.net/Articles/277146/
-# Note: This may impact IPv6 TCP sessions too
-#net.ipv4.tcp_syncookies=1
-
-# Uncomment the next line to enable packet forwarding for IPv4
-#net.ipv4.ip_forward=1
-
-# Uncomment the next line to enable packet forwarding for IPv6
-#  Enabling this option disables Stateless Address Autoconfiguration
-#  based on Router Advertisements for this host
-#net.ipv6.conf.all.forwarding=1
-
-
-###################################################################
-# Additional settings - these settings can improve the network
-# security of the host and prevent against some network attacks
-# including spoofing attacks and man in the middle attacks through
-# redirection. Some network environments, however, require that these
-# settings are disabled so review and enable them as needed.
-#
-# Do not accept ICMP redirects (prevent MITM attacks)
-#net.ipv4.conf.all.accept_redirects = 0
-#net.ipv6.conf.all.accept_redirects = 0
-# _or_
-# Accept ICMP redirects only for gateways listed in our default
-# gateway list (enabled by default)
-# net.ipv4.conf.all.secure_redirects = 1
-#
-# Do not send ICMP redirects (we are not a router)
-#net.ipv4.conf.all.send_redirects = 0
-#
-# Do not accept IP source route packets (we are not a router)
-#net.ipv4.conf.all.accept_source_route = 0
-#net.ipv6.conf.all.accept_source_route = 0
-#
-# Log Martian Packets
-#net.ipv4.conf.all.log_martians = 1
-#
-
-# CIS Benchmark Adjustments
-# See: https://github.com/alanorth/securekickstarts
-kernel.randomize_va_space = 2 
-net.ipv4.ip_forward = 0 
-net.ipv4.conf.all.send_redirects = 0 
-net.ipv4.conf.default.send_redirects = 0 
-net.ipv4.conf.all.accept_source_route = 0 
-net.ipv4.conf.default.accept_source_route = 0 
-net.ipv4.conf.all.accept_redirects = 0 
-net.ipv4.conf.default.accept_redirects = 0 
-net.ipv4.conf.all.secure_redirects = 0 
-net.ipv4.conf.default.secure_redirects = 0 
-net.ipv4.conf.all.log_martians = 1 
-net.ipv4.conf.default.log_martians = 1 
-net.ipv4.icmp_echo_ignore_broadcasts = 1 
-net.ipv4.icmp_ignore_bogus_error_responses = 1 
-net.ipv4.conf.all.rp_filter = 1 
-net.ipv4.conf.default.rp_filter = 1 
-net.ipv4.tcp_syncookies = 1
-
-# TCP stuff
-# See: http://fasterdata.es.net/host-tuning/linux/
-# increase TCP max buffer size settable using setsockopt()
-net.core.rmem_max = 16777216 
-net.core.wmem_max = 16777216 
-# increase Linux autotuning TCP buffer limit 
-net.ipv4.tcp_rmem = 4096 87380 16777216
-net.ipv4.tcp_wmem = 4096 65536 16777216
-# increase the length of the processor input queue
-net.core.netdev_max_backlog = 30000
-# recommended for hosts with jumbo frames enabled
-#net.ipv4.tcp_mtu_probing=1
-
-# increase quadruplets (src ip, src port, dest ip, dest port)
-# see: http://vincent.bernat.im/en/blog/2014-tcp-time-wait-state-linux.html
-net.ipv4.ip_local_port_range = 10240 65535
-# recommended for web servers, especially if running SPDY
-# see: http://www.chromium.org/spdy/spdy-best-practices
-net.ipv4.tcp_slow_start_after_idle = 0

roles/common/templates/tarsnap_sources.list.j2

@@ -1 +1 @@
-deb [arch=amd64] https://pkg.tarsnap.com/deb/{{ ansible_distribution_release }} ./
+deb [arch=amd64 signed-by=/etc/apt/keyrings/tarsnap-deb-packaging-key.asc] https://pkg.tarsnap.com/deb/{{ ansible_distribution_release }} ./

roles/common/templates/update-firehol-nftables.sh.j2

@@ -0,0 +1,65 @@
+#!/usr/bin/env bash
+#
+# update-firehol-nftables.sh v0.0.1
+#
+# Download FireHOL lists and load them into nftables sets.
+# 
+# See: https://iplists.firehol.org/
+#
+# Copyright (C) 2025 Alan Orth
+#
+# SPDX-License-Identifier: GPL-3.0-only
+
+# Exit on first error
+set -o errexit
+
+firehol_level1_ipv4_set_path=/etc/nftables/firehol_level1-ipv4.nft
+
+function download() {
+    echo "Downloading $1"
+    wget -q -O - "https://iplists.firehol.org/files/$1" > "$1"
+}
+
+download firehol_level1.netset
+
+if [[ -f "firehol_level1.netset" ]]; then
+    echo "Processing FireHOL Level 1 list"
+
+    firehol_level1_ipv4_list_temp=$(mktemp)
+    firehol_level1_ipv4_set_temp=$(mktemp)
+
+    # Filter blank lines, comments, and bogons we use inside the LAN, DMZ, and
+    # for local services like systemd-resolved and others on localhost. Ideally
+    # these are blocked already at the WAN side by network administrators.
+    cat firehol_level1.netset \
+        | sed \
+            -e '/^$/d' \
+            -e '/^#.*/d' \
+            -e '/^127\.0\.0\.0\/8/d' \
+        > "$firehol_level1_ipv4_list_temp"
+
+    echo "Building firehol_level1-ipv4 set"
+    cat << NFT_HEAD > "$firehol_level1_ipv4_set_temp"
+#!/usr/sbin/nft -f
+
+define FIREHOL_LEVEL1_IPV4 = {
+NFT_HEAD
+
+    while read -r network; do
+        # nftables doesn't mind if the last element in the set has a trailing
+        # comma so we don't need to do anything special here.
+        echo "$network," >> "$firehol_level1_ipv4_set_temp"
+    done < $firehol_level1_ipv4_list_temp
+
+    echo "}" >> "$firehol_level1_ipv4_set_temp"
+
+    install -m 0600 "$firehol_level1_ipv4_set_temp" "$firehol_level1_ipv4_set_path"
+
+    rm -f "$firehol_level1_ipv4_list_temp" "$firehol_level1_ipv4_set_temp"
+fi
+
+echo "Restarting nftables"
+
+/usr/bin/systemctl restart nftables.service
+
+rm -v firehol_level1.netset

roles/mariadb/handlers/main.yml

@@ -1,5 +1,7 @@
 ---
 - name: restart mariadb
-  ansible.builtin.systemd: name=mariadb state=restarted
+  ansible.builtin.systemd_service:
+    name: mariadb
+    state: restarted
 
 # vim: set ts=2 sw=2:

roles/mariadb/tasks/main.yml

@@ -1,7 +1,7 @@
 ---
 - name: Remove MariaDB key from apt-key
   ansible.builtin.apt_key:
-    id: 0x177F4010FE56CA3336300305F1656F24C74CD1D8
+    id: "013577200103762554506315430003013705453362230723150730"
     state: absent
   tags:
     - packages
@@ -16,21 +16,22 @@
     - mariadb
 
 - name: Download MariaDB package signing key
+  when: not mariadb_signing_key_stat.stat.exists
   ansible.builtin.get_url:
     url: https://mariadb.org/mariadb_release_signing_key.asc
     dest: /etc/apt/keyrings/mariadb_release_signing_key.asc
     owner: root
     group: root
-    mode: 0644
+    mode: "0644"
   register: download_mariadb_signing_key
-  when: not mariadb_signing_key_stat.stat.exists
   tags:
     - packages
     - mariadb
 
-- name: Add MariaDB 10.6 repo
+- name: Add MariaDB 10.11 repo
   ansible.builtin.apt_repository:
-    repo: 'deb [arch=amd64 signed-by=/etc/apt/keyrings/mariadb_release_signing_key.asc] https://dlm.mariadb.com/repo/mariadb-server/10.6/repo/debian {{ ansible_distribution_release }} main'
+    repo: deb [arch=amd64 signed-by=/etc/apt/keyrings/mariadb_release_signing_key.asc] https://dlm.mariadb.com/repo/mariadb-server/10.11/repo/debian {{ ansible_distribution_release
+      }} main
     filename: mariadb
     state: present
   register: add_mariadb_apt_repository
@@ -39,18 +40,16 @@
     - mariadb
 
 - name: Update apt cache
+  when: (download_mariadb_signing_key.status_code is defined and download_mariadb_signing_key.status_code == 200) or add_mariadb_apt_repository is changed
   ansible.builtin.apt: # noqa no-handler
     update_cache: true
-  when:
-    (download_mariadb_signing_key.status_code is defined and download_mariadb_signing_key.status_code == 200) or
-    add_mariadb_apt_repository is changed
   tags:
     - packages
     - mariadb
 
 - name: Install mariadb-server
   ansible.builtin.apt:
-    name: ['mariadb-server', 'python3-pymysql']
+    name: [mariadb-server, python3-pymysql]
     state: present
     cache_valid_time: 3600
   tags: mariadb, packages
@@ -61,7 +60,7 @@
     dest: /etc/mysql/my.cnf
     owner: root
     group: root
-    mode: 0644
+    mode: "0644"
   notify:
     - restart mariadb
   tags: mariadb
@@ -83,21 +82,22 @@
     src: .my.cnf.j2
     dest: /root/.my.cnf
     owner: root
-    mode: 0600
+    mode: "0600"
   tags: mariadb
 
 # See: https://docs.ansible.com/ansible/latest/collections/community/mysql/mysql_db_module.html
 - name: Create MariaDB database(s)
+  when: mariadb_databases is defined
   community.mysql.mysql_db:
     db: "{{ item.name }}"
     state: present
     encoding: utf8mb4
     login_unix_socket: "{{ mariadb_login_unix_socket }}"
   loop: "{{ mariadb_databases }}"
-  when: mariadb_databases is defined
   tags: mariadb
 
 - name: Create MariaDB user(s)
+  when: mariadb_databases is defined
   community.mysql.mysql_user:
     name: "{{ item.user }}"
     password: "{{ item.pass }}"
@@ -106,7 +106,6 @@
     state: present
     login_unix_socket: "{{ mariadb_login_unix_socket }}"
   loop: "{{ mariadb_databases }}"
-  when: mariadb_databases is defined
   tags: mariadb
 
 # vim: set ts=2 sw=2:

roles/munin/handlers/main.yml

@@ -1,4 +1,4 @@
 ---
 # ansible.builtin.file: roles/munin/handlers/main.yml
 - name: restart munin-node
-  ansible.builtin.systemd: name=munin-node state=restarted
+  ansible.builtin.systemd_service: name=munin-node state=restarted

roles/munin/tasks/munin-node.yml

@@ -1,16 +1,22 @@
 ---
 - name: Install munin-node
-  ansible.builtin.apt: name=munin-node state=present
+  ansible.builtin.apt:
+    name: munin-node
+    state: present
   tags: packages
 
 # some nice things to have for munin-node on Ubuntu
 # libwww-perl: for munin's nginx_status check
 - name: Install munin-node deps
-  ansible.builtin.apt: name=libwww-perl state=present
+  ansible.builtin.apt:
+    name: libwww-perl
+    state: present
   tags: packages
 
 - name: Create munin-node.conf
-  ansible.builtin.template: src=munin-node.conf.j2 dest=/etc/munin/munin-node.conf
+  ansible.builtin.template:
+    src: munin-node.conf.j2
+    dest: /etc/munin/munin-node.conf
   notify:
     - restart munin-node
 
@@ -20,6 +26,9 @@
     - restart munin-node
 
 - name: Start munin-node
-  ansible.builtin.systemd: name=munin-node state=started enabled=true
+  ansible.builtin.systemd_service:
+    name: munin-node
+    state: started
+    enabled: true
 
 # vim: set ts=2 sw=2:

roles/munin/tasks/munin.yml

@@ -1,9 +1,16 @@
 ---
 - name: Install munin package
-  ansible.builtin.apt: name=munin state=present
+  ansible.builtin.apt:
+    name: munin
+    state: present
   tags: packages
 
 - name: Create munin configuration file
-  ansible.builtin.template: src=munin.conf.j2 dest=/etc/munin/munin.conf owner=root group=root mode=0644
+  ansible.builtin.template:
+    src: munin.conf.j2
+    dest: /etc/munin/munin.conf
+    owner: root
+    group: root
+    mode: "0644"
 
 # vim: set ts=2 sw=2:

roles/nginx/defaults/main.yml

@@ -5,20 +5,20 @@
 nginx_confd_path: /etc/nginx/conf.d
 
 # parent directory of vhost roots
-nginx_root_prefix: /var/www
+nginx_root_prefix: "{{ web_root_prefix }}"
 
-# 1 hour timeout
-nginx_ssl_session_timeout: 1h
+# 1 day timeout
+nginx_ssl_session_timeout: 1d
 # 10MB -> 40,000 sessions
 nginx_ssl_session_cache: shared:SSL:10m
-# 1400 bytes to fit in one MTU (default is 16k!)
-nginx_ssl_buffer_size: 1400
+nginx_ssl_buffer_size: 4k
 nginx_ssl_dhparam: /etc/ssl/certs/dhparam.pem
-nginx_ssl_protocols: 'TLSv1.2 TLSv1.3'
+nginx_ssl_protocols: TLSv1.2 TLSv1.3
+nginx_ssl_ecdh_curve: X25519:prime256v1:secp384r1
 
 # DNS resolvers for OCSP stapling (default to Cloudflare public DNS)
 # See: https://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_stapling
-nginx_ssl_stapling_resolver: '1.1.1.1 1.0.0.1 [2606:4700:4700::1111] [2606:4700:4700::1001]'
+nginx_ssl_stapling_resolver: 1.1.1.1 1.0.0.1 [2606:4700:4700::1111] [2606:4700:4700::1001]
 
 # HTTP Strict-Transport-Security header, recommended by Google to be ~1 year
 # in seconds, see: https://hstspreload.org/
@@ -37,8 +37,8 @@ letsencrypt_root: /etc/ssl
 letsencrypt_acme_script_temp: /root/acme.sh
 letsencrypt_acme_home: /root/.acme.sh
 
-# stable is 1.20.x
-# mainline is 1.21.x
+# stable is 1.26.x
+# mainline is 1.27.x
 nginx_version: mainline
 
 # vim: set ts=2 sw=2:

roles/nginx/handlers/main.yml

@@ -1,5 +1,7 @@
 ---
-- name: reload nginx
-  ansible.builtin.systemd: name=nginx state=reloaded
+- name: Reload nginx
+  ansible.builtin.systemd_service:
+    name: nginx
+    state: reloaded
 
 # vim: set ts=2 sw=2:

roles/nginx/tasks/letsencrypt.yml

@@ -1,91 +1,91 @@
 ---
-
 # Use acme.sh instead of certbot because they only support installation via
 # snap now.
-- block:
-  - name: Remove certbot
-    ansible.builtin.apt:
-      name: certbot
-      state: absent
-
-  - name: Remove old certbot post and pre hooks for nginx
-    ansible.builtin.file:
-      dest: "{{ item }}"
-      state: absent
-    with_items:
-      - /etc/letsencrypt/renewal-hooks/pre/stop-nginx.sh
-      - /etc/letsencrypt/renewal-hooks/post/start-nginx.sh
-
-  - name: Check if acme.sh is installed
-    ansible.builtin.stat:
-      path: "{{ letsencrypt_acme_home }}"
-    register: acme_home
-
-  - name: Download acme.sh
-    ansible.builtin.get_url:
-      url: https://raw.githubusercontent.com/acmesh-official/acme.sh/master/acme.sh
-      dest: "{{ letsencrypt_acme_script_temp }}"
-      mode: 0700
-    register: acme_download
-    when: not acme_home.stat.exists
-
-  # Run the "install" for acme.sh so it creates the .acme.sh dir (currently I
-  # have to chdir to the /root directory where the script exists or else it
-  # fails. Ansible runs it, but the script can't find itself...).
-  - name: Install acme.sh
-    ansible.builtin.command:
-      cmd: "{{ letsencrypt_acme_script_temp }} --install --no-profile --no-cron"
-      creates: "{{ letsencrypt_acme_home }}/acme.sh"
-      chdir: /root
-    register: acme_install
-    when: acme_download is changed
-
-  - name: Remove temporary acme.sh script
-    ansible.builtin.file:
-      dest: "{{ letsencrypt_acme_script_temp }}"
-      state: absent
-    when:
-      - acme_install.rc is defined
-      - acme_install.rc == 0
-
-  - name: Set default certificate authority for acme.sh
-    ansible.builtin.command:
-      cmd: "{{ letsencrypt_acme_home }}/acme.sh --set-default-ca --server letsencrypt"
-
-  - name: Prepare Let's Encrypt well-known directory
-    ansible.builtin.file:
-      state: directory
-      path: /var/lib/letsencrypt/.well-known
-      owner: root
-      group: nginx
-      mode: g+s
-
-  - name: Copy systemd service to renew Let's Encrypt certs
-    ansible.builtin.template:
-      src: renew-letsencrypt.service.j2
-      dest: /etc/systemd/system/renew-letsencrypt.service
-      mode: 0644
-      owner: root
-      group: root
-
-  - name: Copy systemd timer to renew Let's Encrypt certs
-    ansible.builtin.copy:
-      src: renew-letsencrypt.timer
-      dest: /etc/systemd/system/renew-letsencrypt.timer
-      mode: 0644
-      owner: root
-      group: root
-
-  # always issues daemon-reload just in case the service/timer changed
-  - name: Start and enable systemd timer to renew Let's Encrypt certs
-    ansible.builtin.systemd:
-      name: renew-letsencrypt.timer
-      state: started
-      enabled: true
-      daemon_reload: true
-
-  when: (ansible_distribution == 'Ubuntu' and ansible_distribution_version is version('20.04', '=='))
-        or (ansible_distribution == 'Debian' and ansible_distribution_version is version('11', '=='))
+- name: Install and configure Let's Encrypt
   tags: letsencrypt
+  when:
+    - ansible_distribution == 'Debian'
+    - ansible_distribution_version is version('11', '>='))
+  block:
+    - name: Remove certbot
+      ansible.builtin.apt:
+        name: certbot
+        state: absent
+
+    - name: Remove old certbot post and pre hooks for nginx
+      ansible.builtin.file:
+        dest: "{{ item }}"
+        state: absent
+      with_items:
+        - /etc/letsencrypt/renewal-hooks/pre/stop-nginx.sh
+        - /etc/letsencrypt/renewal-hooks/post/start-nginx.sh
+
+    - name: Check if acme.sh is installed
+      ansible.builtin.stat:
+        path: "{{ letsencrypt_acme_home }}"
+      register: acme_home
+
+    - name: Download acme.sh
+      when: not acme_home.stat.exists
+      ansible.builtin.get_url:
+        url: https://raw.githubusercontent.com/acmesh-official/acme.sh/master/acme.sh
+        dest: "{{ letsencrypt_acme_script_temp }}"
+        mode: "0700"
+      register: acme_download
+
+    # Run the "install" for acme.sh so it creates the .acme.sh dir (currently I
+    # have to chdir to the /root directory where the script exists or else it
+    # fails. Ansible runs it, but the script can't find itself...).
+    - name: Install acme.sh
+      when: acme_download is changed
+      ansible.builtin.command:
+        cmd: "{{ letsencrypt_acme_script_temp }} --install --no-profile --no-cron"
+        creates: "{{ letsencrypt_acme_home }}/acme.sh"
+        chdir: /root
+      register: acme_install
+
+    - name: Remove temporary acme.sh script
+      when:
+        - acme_install.rc is defined
+        - acme_install.rc == 0
+      ansible.builtin.file:
+        dest: "{{ letsencrypt_acme_script_temp }}"
+        state: absent
+
+    - name: Set default certificate authority for acme.sh
+      ansible.builtin.command:
+        cmd: "{{ letsencrypt_acme_home }}/acme.sh --set-default-ca --server letsencrypt"
+
+    - name: Prepare Let's Encrypt well-known directory
+      ansible.builtin.file:
+        state: directory
+        path: /var/lib/letsencrypt/.well-known
+        owner: root
+        group: nginx
+        mode: g+s
+
+    - name: Copy systemd service to renew Let's Encrypt certs
+      ansible.builtin.template:
+        src: renew-letsencrypt.service.j2
+        dest: /etc/systemd/system/renew-letsencrypt.service
+        mode: "0644"
+        owner: root
+        group: root
+
+    - name: Copy systemd timer to renew Let's Encrypt certs
+      ansible.builtin.copy:
+        src: renew-letsencrypt.timer
+        dest: /etc/systemd/system/renew-letsencrypt.timer
+        mode: "0644"
+        owner: root
+        group: root
+
+    # always issues daemon-reload just in case the service/timer changed
+    - name: Start and enable systemd timer to renew Let's Encrypt certs
+      ansible.builtin.systemd_service:
+        name: renew-letsencrypt.timer
+        state: started
+        enabled: true
+        daemon_reload: true
 
 # vim: set ts=2 sw=2:

roles/nginx/tasks/main.yml

@@ -1,13 +1,24 @@
 ---
-- name: Add nginx.org apt signing key
+- name: Remove nginx apt signing key from apt-key
   ansible.builtin.apt_key:
-    id: 0x573BFD6B3D8FBC641079A6ABABF5BD827BD9BF62
-    url: https://nginx.org/keys/nginx_signing.key
-    state: present
-  register: add_nginx_apt_key
+    id: "053473772654754373614404074646527257655730117366337542"
+    state: absent
   tags:
-    - nginx
     - packages
+    - nginx
+
+- name: Download nginx apt signing key
+  ansible.builtin.get_url:
+    url: https://nginx.org/keys/nginx_signing.key
+    dest: /usr/share/keyrings/nginx_signing.key
+    owner: root
+    group: root
+    mode: "0644"
+    checksum: sha256:55385da31d198fa6a5012d40ae98ecb272a6c4e8fffffba94719ffd3e87de37a
+  register: download_nginx_signing_key
+  tags:
+    - packages
+    - nginx
 
 - name: Add nginx.org repo
   ansible.builtin.template:
@@ -15,18 +26,16 @@
     dest: /etc/apt/sources.list.d/nginx_org_sources.list
     owner: root
     group: root
-    mode: 0644
+    mode: "0644"
   register: add_nginx_apt_repository
   tags:
     - nginx
     - packages
 
 - name: Update apt cache
-  ansible.builtin.apt:
+  when: (download_nginx_signing_key.status_code is defined and download_nginx_signing_key.status_code == 200) or add_nginx_apt_repository is changed
+  ansible.builtin.apt: # noqa no-handler
     update_cache: true
-  when:
-    add_nginx_apt_key is changed or
-    add_nginx_apt_repository is changed
 
 - name: Install nginx
   ansible.builtin.apt:
@@ -41,25 +50,25 @@
   ansible.builtin.template:
     src: nginx.conf.j2
     dest: /etc/nginx/nginx.conf
-    mode: 0644
+    mode: "0644"
     owner: root
     group: root
   notify:
-    - reload nginx
+    - Reload nginx
   tags: nginx
 
 - name: Copy extra nginx configs
   ansible.builtin.copy:
     src: "{{ item }}"
-    dest: "/etc/nginx/{{ item }}"
-    mode: 0644
+    dest: /etc/nginx/{{ item }}
+    mode: "0644"
     owner: root
     group: root
   loop:
     - extra-security.conf
     - fastcgi_cache
   notify:
-    - reload nginx
+    - Reload nginx
   tags: nginx
 
 - name: Remove default nginx vhost
@@ -74,43 +83,43 @@
     state: directory
     owner: nginx
     group: nginx
-    mode: 0755
+    mode: "0755"
   tags: nginx
 
 - name: Configure nginx virtual hosts
-  ansible.builtin.include_tasks: vhosts.yml
   when: nginx_vhosts is defined
+  ansible.builtin.include_tasks: vhosts.yml
   tags: nginx
 
 - name: Configure WordPress
-  ansible.builtin.include_tasks: wordpress.yml
   when: nginx_vhosts is defined
+  ansible.builtin.include_tasks: wordpress.yml
   tags: wordpress
 
 - name: Configure blank nginx vhost
   ansible.builtin.template:
     src: blank-vhost.conf.j2
     dest: "{{ nginx_confd_path }}/blank-vhost.conf"
-    mode: 0644
+    mode: "0644"
     owner: root
     group: root
   notify:
-    - reload nginx
+    - Reload nginx
   tags: nginx
 
 - name: Configure munin vhost
   ansible.builtin.copy:
     src: munin.conf
     dest: /etc/nginx/conf.d/munin.conf
-    mode: 0644
+    mode: "0644"
     owner: root
     group: root
   notify:
-    - reload nginx
+    - Reload nginx
   tags: nginx
 
 - name: Start and enable nginx service
-  ansible.builtin.systemd:
+  ansible.builtin.systemd_service:
     name: nginx
     state: started
     enabled: true

roles/nginx/tasks/vhosts.yml

@@ -1,29 +1,40 @@
 ---
-
-- block:
-  - name: Configure https vhosts
-    ansible.builtin.template: src=vhost.conf.j2 dest={{ nginx_confd_path }}/{{ item.domain_name }}.conf mode=0644 owner=root group=root
-    loop: "{{ nginx_vhosts }}"
-    notify:
-      - reload nginx
-
-  - name: Generate self-signed TLS cert
-    ansible.builtin.command: openssl req -x509 -nodes -sha256 -days 365 -subj "/C=SO/ST=SO/L=snakeoil/O=snakeoil/CN=snakeoil" -newkey rsa:2048 -keyout /etc/ssl/private/nginx-snakeoil.key -out /etc/ssl/certs/nginx-snakeoil.crt -extensions v3_ca creates=/etc/ssl/certs/nginx-snakeoil.crt
-    notify:
-      - reload nginx
-
-  - name: Download 4096-bit RFC 7919 dhparams
-    ansible.builtin.get_url:
-      url: https://raw.githubusercontent.com/internetstandards/dhe_groups/master/ffdhe4096.pem
-      checksum: sha256:64852d6890ff9e62eecd1ee89c72af9af244dfef5b853bcedea3dfd7aade22b3
-      dest: "{{ nginx_ssl_dhparam }}"
-    notify:
-      - reload nginx
-
-  # TODO: this could break because we can override the document root in host vars
-  - name: Create vhost document roots
-    ansible.builtin.file: path={{ nginx_root_prefix }}/{{ item.domain_name }} state=directory mode=0755 owner=nginx group=nginx
-    loop: "{{ nginx_vhosts }}"
+- name: Configure https vhosts
   tags: nginx
+  block:
+    - name: Configure https vhosts
+      ansible.builtin.template:
+        src: vhost.conf.j2
+        dest: "{{ nginx_confd_path }}/{{ item.domain_name }}.conf"
+        mode: "0644"
+        owner: root
+        group: root
+      loop: "{{ nginx_vhosts }}"
+      notify:
+        - Reload nginx
+
+    - name: Generate self-signed TLS cert
+      ansible.builtin.command: openssl req -x509 -nodes -sha256 -days 365 -subj "/C=SO/ST=SO/L=snakeoil/O=snakeoil/CN=snakeoil" -newkey rsa:2048 -keyout /etc/ssl/private/nginx-snakeoil.key
+        -out /etc/ssl/certs/nginx-snakeoil.crt -extensions v3_ca creates=/etc/ssl/certs/nginx-snakeoil.crt
+      notify:
+        - Reload nginx
+
+    - name: Download 4096-bit RFC 7919 dhparams
+      ansible.builtin.get_url:
+        url: https://raw.githubusercontent.com/internetstandards/dhe_groups/master/ffdhe4096.pem
+        checksum: sha256:64852d6890ff9e62eecd1ee89c72af9af244dfef5b853bcedea3dfd7aade22b3
+        dest: "{{ nginx_ssl_dhparam }}"
+      notify:
+        - Reload nginx
+
+    # TODO: this could break because we can override the document root in host vars
+    - name: Create vhost document roots
+      ansible.builtin.file:
+        path: "{{ nginx_root_prefix }}/{{ item.domain_name }}"
+        state: directory
+        mode: "0755"
+        owner: nginx
+        group: nginx
+      loop: "{{ nginx_vhosts }}"
 
 # vim: set ts=2 sw=2:

roles/nginx/tasks/wordpress.yml

@@ -1,19 +1,29 @@
 ---
-
-- block:
-  - name: Install WordPress
-    ansible.builtin.git: repo=https://github.com/WordPress/WordPress.git dest={{ nginx_root_prefix }}/{{ item.domain_name }}/wordpress version={{ item.wordpress_version }} depth=1 force=true
-    when:
-      - item.has_wordpress is defined
-      - item.has_wordpress
-    loop: "{{ nginx_vhosts }}"
-
-  - name: Fix WordPress directory permissions
-    ansible.builtin.file: path={{ nginx_root_prefix }}/{{ item.domain_name }} state=directory owner=nginx group=nginx recurse=true
-    when:
-      - item.has_wordpress is defined
-      - item.has_wordpress
-    loop: "{{ nginx_vhosts }}"
+- name: Install and configure WordPress
   tags: wordpress
+  block:
+    - name: Install WordPress
+      when:
+        - item.has_wordpress is defined
+        - item.has_wordpress
+      ansible.builtin.git:
+        repo: https://github.com/WordPress/WordPress.git
+        dest: "{{ nginx_root_prefix }}/{{ item.domain_name }}/wordpress"
+        version: "{{ item.wordpress_version }}"
+        depth: 1
+        force: true
+      loop: "{{ nginx_vhosts }}"
+
+    - name: Fix WordPress directory permissions
+      when:
+        - item.has_wordpress is defined
+        - item.has_wordpress
+      ansible.builtin.file:
+        path: "{{ nginx_root_prefix }}/{{ item.domain_name }}"
+        state: directory
+        owner: nginx
+        group: nginx
+        recurse: true
+      loop: "{{ nginx_vhosts }}"
 
 # vim: set ts=2 sw=2:

roles/nginx/templates/blank-vhost.conf.j2

@@ -11,9 +11,11 @@ server {
 
     return 444;
 }
+
 server {
-    listen 443 ssl http2 default_server;
-    listen [::]:443 ssl http2 default_server;
+    listen 443 ssl default_server;
+    listen [::]:443 ssl default_server;
+    http2 on;
     server_name _;
 
     # self-signed "snakeoil" certificate

roles/nginx/templates/https.j2

@@ -27,8 +27,9 @@
 
     ssl_dhparam {{ nginx_ssl_dhparam }};
     ssl_protocols {{ nginx_ssl_protocols }};
+    ssl_ecdh_curve {{ nginx_ssl_ecdh_curve }};
     ssl_ciphers "{{ tls_cipher_suite }}";
-    ssl_prefer_server_ciphers on;
+    ssl_prefer_server_ciphers off;
 
     {# OSCP stapling only works with real certs #}
     {% if use_letsencrypt == true or item.tls_certificate_path %}
@@ -38,15 +39,6 @@
     resolver {{ nginx_ssl_stapling_resolver }};
     {% endif %} {# end: use_letsencrypt #}
 
-    # nginx does not auto-rotate session ticket keys: only a HUP / restart will do so and
-    # when a restart is performed the previous key is lost, which resets all previous
-    # sessions. The fix for this is to setup a manual rotation mechanism:
-    # http://trac.nginx.org/nginx/changeset/1356a3b9692441e163b4e78be4e9f5a46c7479e9/nginx
-    #
-    # Note that you'll have to define and rotate the keys securely by yourself. In absence
-    # of such infrastructure, consider turning off session tickets:
-    ssl_session_tickets off;
-
     {% if enable_hsts == true %}
     # Enable this if you want HSTS (recommended, but be careful)
     # Include all subdomains and indicate to Google that we want this pre-loaded in Chrome's HSTS store

roles/nginx/templates/nginx_org_sources.list.j2

@@ -1,19 +1,7 @@
 {{ ansible_managed | comment }}
 
-{% if ansible_distribution == 'Ubuntu' %}
-
 {% if nginx_version == "stable" %}
-deb [arch=amd64] https://nginx.org/packages/ubuntu/ {{ ansible_distribution_release }} nginx
+deb [arch=amd64 signed-by=/usr/share/keyrings/nginx_signing.key] https://nginx.org/packages/debian/ {{ ansible_distribution_release }} nginx
 {% elif nginx_version == "mainline" %}
-deb [arch=amd64] https://nginx.org/packages/mainline/ubuntu/ {{ ansible_distribution_release }} nginx
-{% endif %}
-
-{% elif ansible_distribution == 'Debian' %}
-
-{% if nginx_version == "stable" %}
-deb [arch=amd64] https://nginx.org/packages/debian/ {{ ansible_distribution_release }} nginx
-{% elif nginx_version == "mainline" %}
-deb [arch=amd64] https://nginx.org/packages/mainline/debian/ {{ ansible_distribution_release }} nginx
-{% endif %}
-
+deb [arch=amd64 signed-by=/usr/share/keyrings/nginx_signing.key] https://nginx.org/packages/mainline/debian/ {{ ansible_distribution_release }} nginx
 {% endif %}

roles/nginx/templates/vhost.conf.j2

@@ -8,6 +8,12 @@
 {% set has_wordpress  = item.has_wordpress | default(false) %}
 {% set needs_php      = item.needs_php | default(false) %}
 {% set has_gitea      = item.has_gitea | default(false) %}
+{# Allow sites to override the document root #}
+{% if item.document_root is defined %}
+{%   set document_root = item.document_root %}
+{% else %}
+{%   set document_root = (nginx_root_prefix, domain_name) | ansible.builtin.path_join %}
+{% endif %}
 
 # http -> https vhost
 server {
@@ -26,15 +32,11 @@ server {
 }
 
 server {
-    listen 443 ssl http2;
-    listen [::]:443 ssl http2;
+    listen 443 ssl;
+    listen [::]:443 ssl;
+    http2 on;
 
-    {# Allow sites to override the nginx document root #}
-    {% if item.document_root is defined %}
-    root {{ item.document_root }};
-    {% else %}
-    root {{ nginx_root_prefix }}/{{ domain_name }};
-    {% endif %}
+    root {{ document_root }};
 
     {# will only work if the TLS cert covers the domain + aliases, like example.com and www.example.com #}
     server_name {{ domain_name }} {{ domain_aliases }};
@@ -75,10 +77,8 @@ server {
         # See: https://httpoxy.org/
         fastcgi_param HTTP_PROXY "";
 
-        {% if (ansible_distribution == 'Ubuntu' and ansible_distribution_version is version('20.04', '==')) or (ansible_distribution == 'Debian' and ansible_distribution_major_version is version('11', '==')) %}
-        fastcgi_pass unix:/run/php/php7.4-fpm-{{ domain_name }}.sock;
-        {% else %}
-        fastcgi_pass unix:/var/run/php5-fpm-{{ domain_name }}.sock;
+        {% if ansible_distribution_major_version is version('12', '==') %}
+        fastcgi_pass unix:/run/php/php8.2-fpm-{{ domain_name }}.sock;
         {% endif %}
         fastcgi_index index.php;
         # set script path relative to document root in server block

roles/php-fpm/handlers/main.yml

@@ -1,6 +0,0 @@
----
-# For Ubuntu 20.04 and Debian 11
-- name: reload php7.4-fpm
-  ansible.builtin.systemd: name=php7.4-fpm state=reloaded
-
-# vim: set ts=2 sw=2:

roles/php-fpm/tasks/Ubuntu_20.04.yml

@@ -1,36 +0,0 @@
----
-
-- block:
-  - name: Set php-fpm packages
-    ansible.builtin.set_fact:
-      php_fpm_packages:
-        - php7.4-fpm
-        # for WordPress
-        - php7.4-mysql
-        - php7.4-gd
-        - php7.4-curl
-        - php7.4-xml
-
-  - name: Install php-fpm and deps
-    ansible.builtin.apt: name={{ php_fpm_packages }} state=present update_cache=true
-
-  # only copy php-fpm config for vhosts that need WordPress or PHP
-  - name: Copy php-fpm pool config
-    ansible.builtin.template: src=php7.4-pool.conf.j2 dest=/etc/php/7.4/fpm/pool.d/{{ item.domain_name }}.conf owner=root group=root mode=0644
-    loop: "{{ nginx_vhosts }}"
-    when: (item.has_wordpress is defined and item.has_wordpress) or (item.needs_php is defined and item.needs_php)
-    notify: reload php7.4-fpm
-
-  - name: Remove default www pool
-    ansible.builtin.file: path=/etc/php/7.4/fpm/pool.d/www.conf state=absent
-    notify: reload php7.4-fpm
-
-  # re-configure php.ini
-  - name: Update php.ini
-    ansible.builtin.template: src=php7.4-php.ini.j2 dest=/etc/php/7.4/fpm/php.ini owner=root group=root mode=0644
-    notify: reload php7.4-fpm
-
-  tags: php-fpm
-  when: install_php
-
-# vim: set ts=2 sw=2:

roles/php_fpm/handlers/main.yml

@@ -0,0 +1,8 @@
+---
+# For Debian 12
+- name: Reload php8.2-fpm
+  ansible.builtin.systemd_service:
+    name: php8.2-fpm
+    state: reloaded
+
+# vim: set ts=2 sw=2:

roles/php_fpm/tasks/Debian_12.yml

@@ -0,0 +1,50 @@
+---
+- name: Install and configure php-fpm
+  tags: php-fpm
+  when: install_php
+  block:
+    - name: Set php-fpm packages
+      ansible.builtin.set_fact:
+        php_fpm_packages:
+          - php8.2-fpm
+          # for WordPress
+          - php8.2-mysql
+          - php8.2-gd
+          - php8.2-curl
+          - php8.2-xml
+
+    - name: Install php-fpm and deps
+      ansible.builtin.apt:
+        name: "{{ php_fpm_packages }}"
+        state: present
+        update_cache: true
+
+    # only copy php-fpm config for vhosts that need WordPress or PHP
+    - name: Copy php-fpm pool config
+      ansible.builtin.template:
+        src: php8.2-pool.conf.j2
+        dest: /etc/php/8.2/fpm/pool.d/{{ item.domain_name }}.conf
+        owner: root
+        group: root
+        mode: "0644"
+      loop: "{{ nginx_vhosts }}"
+      when: (item.has_wordpress is defined and item.has_wordpress) or (item.needs_php is defined and item.needs_php)
+      notify: Reload php8.2-fpm
+
+    - name: Remove default www pool
+      ansible.builtin.file:
+        path: /etc/php/8.2/fpm/pool.d/www.conf
+        state: absent
+      notify: Reload php8.2-fpm
+
+    # re-configure php.ini
+    - name: Update php.ini
+      ansible.builtin.template:
+        src: php8.2-php.ini.j2
+        dest: /etc/php/8.2/fpm/php.ini
+        owner: root
+        group: root
+        mode: "0644"
+      notify: Reload php8.2-fpm
+
+# vim: set ts=2 sw=2:

roles/php_fpm/tasks/main.yml

@@ -1,6 +1,5 @@
 ---
-# Ubuntu 20.04 uses PHP 7.4
-# Debian 11 uses PHP 7.4
+# Debian 12 uses PHP 8.2
 
 # If any of the vhosts on this host need WordPress then we need to install PHP.
 # This uses selectattr to filter the list of dicts in nginx_vhosts, selecting
@@ -10,13 +9,13 @@
 - name: Check if any vhost needs WordPress
   ansible.builtin.set_fact:
     install_php: true
-  when: "nginx_vhosts | selectattr('has_wordpress', 'defined') | selectattr('has_wordpress', 'equalto', true) | list | length > 0"
+  when: nginx_vhosts | selectattr('has_wordpress', 'defined') | selectattr('has_wordpress', 'equalto', true) | list | length > 0
 
 # Legacy, was only for Piwik, but leaving for now.
 - name: Check if any vhost needs PHP
   ansible.builtin.set_fact:
     install_php: true
-  when: "nginx_vhosts | selectattr('needs_php', 'defined') | selectattr('needs_php', 'equalto', true) | list | length > 0"
+  when: nginx_vhosts | selectattr('needs_php', 'defined') | selectattr('needs_php', 'equalto', true) | list | length > 0
 
 # If install_php has not been set, then we assume no vhosts need PHP. This is
 # a bit hacky, but it's the closest we come to an if/then/else.
@@ -25,20 +24,12 @@
     install_php: false
   when: install_php is not defined
 
-- name: Configure php-fpm on Ubuntu 20.04
-  ansible.builtin.include_tasks: Ubuntu_20.04.yml
-  when:
-    - ansible_distribution == 'Ubuntu'
-    - ansible_distribution_version is version('20.04', '==')
-    - install_php == true
-  tags: php-fpm
-
-- name: Configure php-fpm on Debian 11
-  ansible.builtin.include_tasks: Ubuntu_20.04.yml
+- name: Configure php-fpm on Debian 12
+  ansible.builtin.include_tasks: Debian_12.yml
   when:
     - ansible_distribution == 'Debian'
-    - ansible_distribution_major_version is version('11', '==')
-    - install_php == true
+    - ansible_distribution_major_version is version('12', '==')
+    - install_php
   tags: php-fpm
 
 # vim: set ts=2 sw=2:

roles/php_fpm/templates/php8.2-pool.conf.j2

@@ -19,11 +19,16 @@
 ; Default Value: none
 ;prefix = /path/to/pools/$pool
 
-; Unix user/group of processes
-; Note: The user is mandatory. If the group is not set, the default user's group
-;       will be used.
-user = nginx
-group = nginx
+; Unix user/group of the child processes. This can be used only if the master
+; process running user is root. It is set after the child process is created.
+; The user and group can be specified either by their name or by their numeric
+; IDs.
+; Note: If the user is root, the executable needs to be started with
+;       --allow-to-run-as-root option to work.
+; Default Values: The user is set to master process running user by default.
+;                 If the group is not set, the user's group is used.
+user = {{ webserver }}
+group = {{ webserver }}
 
 ; The address on which to accept FastCGI requests.
 ; Valid syntaxes are:
@@ -35,20 +40,22 @@ group = nginx
 ;                            (IPv6 and IPv4-mapped) on a specific port;
 ;   '/path/to/unix/socket' - to listen on a unix socket.
 ; Note: This value is mandatory.
-listen = /run/php/php7.4-fpm-{{ domain_name }}.sock
+listen = /run/php/php8.2-fpm-{{ domain_name }}.sock
 
 ; Set listen(2) backlog.
-; Default Value: 511 (-1 on FreeBSD and OpenBSD)
+; Default Value: 511 (-1 on Linux, FreeBSD and OpenBSD)
 ;listen.backlog = 511
 
 ; Set permissions for unix socket, if one is used. In Linux, read/write
 ; permissions must be set in order to allow connections from a web server. Many
-; BSD-derived systems allow connections regardless of permissions.
-; Default Values: user and group are set as the running user
-;                 mode is set to 0660
-listen.owner = nginx
-listen.group = nginx
+; BSD-derived systems allow connections regardless of permissions. The owner
+; and group can be specified either by name or by their numeric IDs.
+; Default Values: Owner is set to the master process running user. If the group
+;                 is not set, the owner's group is used. Mode is set to 0660.
+listen.owner = {{ webserver }}
+listen.group = {{ webserver }}
 ;listen.mode = 0660
+
 ; When POSIX Access Control Lists are supported you can set them using
 ; these options, value is a comma separated list of user/group names.
 ; When set, listen.owner and listen.group are ignored
@@ -63,6 +70,10 @@ listen.group = nginx
 ; Default Value: any
 ;listen.allowed_clients = 127.0.0.1
 
+; Set the associated the route table (FIB). FreeBSD only
+; Default Value: -1
+;listen.setfib = 1
+
 ; Specify the nice(2) priority to apply to the pool processes (only if set)
 ; The value can vary from -19 (highest priority) to 20 (lower priority)
 ; Note: - It will only work if the FPM master process is launched as root
@@ -71,8 +82,9 @@ listen.group = nginx
 ; Default Value: no set
 ; process.priority = -19
 
-; Set the process dumpable flag (PR_SET_DUMPABLE prctl) even if the process user
-; or group is differrent than the master process user. It allows to create process
+; Set the process dumpable flag (PR_SET_DUMPABLE prctl for Linux or
+; PROC_TRACE_CTL procctl for FreeBSD) even if the process user
+; or group is different than the master process user. It allows to create process
 ; core dump and ptrace the process for the pool user.
 ; Default Value: no
 ; process.dumpable = yes
@@ -94,6 +106,8 @@ listen.group = nginx
 ;                                    state (waiting to process). If the number
 ;                                    of 'idle' processes is greater than this
 ;                                    number then some children will be killed.
+;             pm.max_spawn_rate    - the maximum number of rate to spawn child
+;                                    processes at once.
 ;  ondemand - no children are created at startup. Children will be forked when
 ;             new requests will connect. The following parameter are used:
 ;             pm.max_children           - the maximum number of children that
@@ -129,6 +143,12 @@ pm.min_spare_servers = 1
 ; Note: Mandatory when pm is set to 'dynamic'
 pm.max_spare_servers = 3
 
+; The number of rate to spawn child processes at once.
+; Note: Used only when pm is set to 'dynamic'
+; Note: Mandatory when pm is set to 'dynamic'
+; Default Value: 32
+;pm.max_spawn_rate = 32
+
 ; The number of seconds after which an idle process will be killed.
 ; Note: Used only when pm is set to 'ondemand'
 ; Default Value: 10s
@@ -141,7 +161,7 @@ pm.max_spare_servers = 3
 ;pm.max_requests = 500
 
 ; The URI to view the FPM status page. If this value is not set, no URI will be
-; recognized as a status page. It shows the following informations:
+; recognized as a status page. It shows the following information:
 ;   pool                 - the name of the pool;
 ;   process manager      - static, dynamic or ondemand;
 ;   start time           - the date and time FPM has started;
@@ -231,7 +251,7 @@ pm.max_spare_servers = 3
 ;   last request memory:  0
 ;
 ; Note: There is a real-time FPM status monitoring sample web page available
-;       It's available in: /usr/share/php/7.4/fpm/status.html
+;       It's available in: /usr/share/php/8.2/fpm/status.html
 ;
 ; Note: The value must start with a leading slash (/). The value can be
 ;       anything, but it may not be a good idea to use the .php extension or it
@@ -239,6 +259,22 @@ pm.max_spare_servers = 3
 ; Default Value: not set
 ;pm.status_path = /status
 
+; The address on which to accept FastCGI status request. This creates a new
+; invisible pool that can handle requests independently. This is useful
+; if the main pool is busy with long running requests because it is still possible
+; to get the status before finishing the long running requests.
+;
+; Valid syntaxes are:
+;   'ip.add.re.ss:port'    - to listen on a TCP socket to a specific IPv4 address on
+;                            a specific port;
+;   '[ip:6:addr:ess]:port' - to listen on a TCP socket to a specific IPv6 address on
+;                            a specific port;
+;   'port'                 - to listen on a TCP socket to all addresses
+;                            (IPv6 and IPv4-mapped) on a specific port;
+;   '/path/to/unix/socket' - to listen on a unix socket.
+; Default Value: value of the listen option
+;pm.status_listen = 127.0.0.1:9001
+
 ; The ping URI to call the monitoring page of FPM. If this value is not set, no
 ; URI will be recognized as a ping page. This could be used to test from outside
 ; that FPM is alive and responding, or to
@@ -271,13 +307,13 @@ pm.max_spare_servers = 3
 ;  %d: time taken to serve the request
 ;      it can accept the following format:
 ;      - %{seconds}d (default)
-;      - %{miliseconds}d
-;      - %{mili}d
+;      - %{milliseconds}d
+;      - %{milli}d
 ;      - %{microseconds}d
 ;      - %{micro}d
 ;  %e: an environment variable (same as $_ENV or $_SERVER)
 ;      it must be associated with embraces to specify the name of the env
-;      variable. Some exemples:
+;      variable. Some examples:
 ;      - server specifics like: %{REQUEST_METHOD}e or %{SERVER_PROTOCOL}e
 ;      - HTTP headers like: %{HTTP_HOST}e or %{HTTP_USER_AGENT}e
 ;  %f: script filename
@@ -306,14 +342,30 @@ pm.max_spare_servers = 3
 ;  %s: status (response code)
 ;  %t: server time the request was received
 ;      it can accept a strftime(3) format:
-;      The strftime(3) format must be encapsuled in a %{<strftime_format>}t tag
+;      The strftime(3) format must be encapsulated in a %{<strftime_format>}t tag
 ;  %T: time the log has been written (the request has finished)
 ;      it can accept a strftime(3) format:
-;      The strftime(3) format must be encapsuled in a %{<strftime_format>}t tag
+;      The strftime(3) format must be encapsulated in a %{<strftime_format>}t tag
 ;  %u: remote user
 ;
 ; Default: "%R - %u %t \"%m %r\" %s"
-;access.format = "%R - %u %t \"%m %r%Q%q\" %s %f %{mili}d %{kilo}M %C%%"
+;access.format = "%R - %u %t \"%m %r%Q%q\" %s %f %{milli}d %{kilo}M %C%%"
+
+; A list of request_uri values which should be filtered from the access log.
+;
+; As a security precuation, this setting will be ignored if:
+;     - the request method is not GET or HEAD; or
+;     - there is a request body; or
+;     - there are query parameters; or
+;     - the response code is outwith the successful range of 200 to 299
+;
+; Note: The paths are matched against the output of the access.format tag "%r".
+;       On common configurations, this may look more like SCRIPT_NAME than the
+;       expected pre-rewrite URI.
+;
+; Default Value: not set
+;access.suppress_path[] = /ping
+;access.suppress_path[] = /health_check.php
 
 ; The log file for slow requests
 ; Default Value: not set
@@ -372,7 +424,7 @@ pm.max_spare_servers = 3
 
 ; Redirect worker stdout and stderr into main error log. If not set, stdout and
 ; stderr will be redirected to /dev/null according to FastCGI specs.
-; Note: on highloaded environement, this can cause some delay in the page
+; Note: on highloaded environment, this can cause some delay in the page
 ; process time (several ms).
 ; Default Value: no
 ;catch_workers_output = yes

vars/Ubuntu.yml

@@ -1,10 +0,0 @@
----
-
-# sshd service name is `ssh` on Debian/Ubuntu, but it's
-# `sshd` on CentOS
-sshd_service_name: ssh
-
-# provisioning user vars
-provisioning_user: { name: 'provisioning', home: '/home/provisioning' }
-
-# vim: set ts=2 sw=2:

web.yml

@@ -9,7 +9,7 @@
     - { role: mariadb, when: mariadb_databases is defined}
     - { role: nginx, when: webserver is defined and webserver == 'nginx' }
     - { role: caddy, when: webserver is defined and webserver == 'caddy' }
-    - php-fpm
+    - php_fpm
     - munin
   vars_files:
     - vars/ipsets.yml