ansible-personal/roles/common/tasks/firewall_Debian.yml

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---
- block:
- name: Set Debian firewall packages
set_fact:
debian_firewall_packages:
- firewalld
- tidy
- fail2ban
- python3-systemd # for fail2ban systemd backend
- name: Install firewalld and deps
when: ansible_distribution_major_version is version_compare('9', '>=')
apt: pkg={{ debian_firewall_packages }} state=present
- name: Use iptables backend in firewalld
when: ansible_distribution_major_version is version_compare('10', '>=')
lineinfile:
dest: /etc/firewalld/firewalld.conf
regexp: '^FirewallBackend=nftables$'
line: 'FirewallBackend=iptables'
notify:
- restart firewalld
# firewalld seems to have an issue with iptables 1.8.2 when using the nftables
# backend. Using individual calls seems to work around it.
# See: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=931722
- name: Use individual iptables calls
when: ansible_distribution_major_version is version_compare('10', '>=')
lineinfile:
dest: /etc/firewalld/firewalld.conf
regexp: '^IndividualCalls=yes$'
line: 'IndividualCalls=no'
notify:
- restart firewalld
- name: Copy firewalld public zone file
when: ansible_distribution_major_version is version_compare('9', '>=')
template: src=public.xml.j2 dest=/etc/firewalld/zones/public.xml owner=root mode=0600
- name: Format public.xml firewalld zone file
when: ansible_distribution_major_version is version_compare('9', '>=')
command: tidy -xml -iq -m -w 0 /etc/firewalld/zones/public.xml
notify:
- restart firewalld
- name: Copy ipsets of abusive IPs
when: ansible_distribution_major_version is version_compare('9', '>=')
copy: src={{ item }} dest=/etc/firewalld/ipsets/{{ item }} owner=root group=root mode=0600
loop:
- abusers-ipv4.xml
- abusers-ipv6.xml
notify:
- restart firewalld
- include_tasks: fail2ban.yml
when: ansible_distribution_major_version is version_compare('9', '>=')
tags: firewall
# vim: set sw=2 ts=2: