Alan Orth
067adcd9f5
We can only run fail2ban when we have logs to monitor. When a host is running Caddy we don't have logs, so fail2ban doesn't have any- thing to monitor out of the box. For now I will restrict the task to hosts running nginx.
118 lines
3.6 KiB
YAML
118 lines
3.6 KiB
YAML
---
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# Ubuntu 20.04 will use nftables directly, with no firewalld.
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- block:
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- name: Install Ubuntu firewall packages
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when: ansible_distribution_version is version('20.04', '>=')
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ansible.builtin.package:
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name:
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- libnet-ip-perl # for aggregate-cidr-addresses.pl
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- nftables
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- curl # for nftables update scripts
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state: present
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cache_valid_time: 3600
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- name: Remove ufw
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ansible.builtin.package:
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name: ufw
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state: absent
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- name: Copy nftables.conf
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when: ansible_distribution_version is version('20.04', '>=')
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ansible.builtin.template:
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src: nftables.conf.j2
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dest: /etc/nftables.conf
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owner: root
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mode: "0644"
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notify:
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- restart nftables
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- restart fail2ban
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- name: Create /etc/nftables extra config directory
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when: ansible_distribution_version is version('20.04', '>=')
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ansible.builtin.file:
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path: /etc/nftables
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state: directory
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owner: root
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mode: "0755"
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- name: Copy extra nftables configuration files
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when: ansible_distribution_version is version('20.04', '>=')
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ansible.builtin.copy:
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src: "{{ item.src }}"
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dest: /etc/nftables/{{ item.src }}
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owner: root
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group: root
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mode: "0644"
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force: "{{ item.force }}"
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loop:
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- { src: spamhaus-ipv4.nft, force: "no" }
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- { src: spamhaus-ipv6.nft, force: "no" }
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- { src: abusech-ipv4.nft, force: "no" }
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- { src: abuseipdb-ipv4.nft, force: "yes" }
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- { src: abuseipdb-ipv6.nft, force: "yes" }
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notify:
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- restart nftables
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- restart fail2ban
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- name: Copy nftables update scripts
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when: ansible_distribution_version is version('20.04', '>=')
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ansible.builtin.copy:
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src: "{{ item }}"
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dest: /usr/local/bin/{{ item }}
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mode: "0755"
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owner: root
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group: root
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loop:
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- update-spamhaus-nftables.sh
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- aggregate-cidr-addresses.pl
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- update-abusech-nftables.sh
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- name: Copy nftables systemd units
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when: ansible_distribution_version is version('20.04', '>=')
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ansible.builtin.copy:
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src: "{{ item }}"
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dest: /etc/systemd/system/{{ item }}
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mode: "0644"
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owner: root
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group: root
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loop:
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- update-spamhaus-nftables.service
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- update-spamhaus-nftables.timer
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- update-abusech-nftables.service
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- update-abusech-nftables.timer
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register: nftables_systemd_units
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# need to reload to pick up service/timer/environment changes
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- name: Reload systemd daemon
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ansible.builtin.systemd:
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daemon_reload: true
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when: nftables_systemd_units is changed
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- name: Start and enable nftables update timers
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when: ansible_distribution_version is version('20.04', '>=')
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ansible.builtin.systemd:
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name: "{{ item }}"
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state: started
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enabled: true
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loop:
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- update-spamhaus-nftables.timer
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- update-abusech-nftables.timer
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- name: Start and enable nftables
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when: ansible_distribution_version is version('20.04', '>=')
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ansible.builtin.systemd:
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name: nftables
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state: started
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enabled: true
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# We only install fail2ban on systems running nginx. If the host is running
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# Caddy then there are no logs for us to monitor.
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- ansible.builtin.include_tasks: fail2ban.yml
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when:
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- ansible_distribution_version is version('16.04', '>=')
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- webserver is defined and webserver == 'nginx'
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tags: firewall
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# vim: set sw=2 ts=2:
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