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vps/ansible/playbooks/wireguard-harden.yml
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---
# This owns the non-secret Compose declaration only. WireGuard key material
# remains under the server-local /opt/wireguard/config bind mount.
- name: Apply the reviewed WireGuard Compose hardening
hosts: wireguard
become: true
gather_facts: false
serial: 1
vars:
wireguard_harden_confirm: false
wireguard_compose_candidate: "{{ compose_project_dir }}/compose.yml.candidate"
tasks:
- name: Require explicit WireGuard hardening confirmation
ansible.builtin.assert:
that:
- wireguard_harden_confirm | bool
fail_msg: >-
This operation replaces the non-secret Compose declaration. Run only
during the approved maintenance window after a rollback archive exists.
- name: Verify that a protected pre-change archive exists
ansible.builtin.find:
paths: "{{ compose_project_dir }}/backups"
patterns: 'pre-hardening-*.tar.gz'
file_type: file
register: wireguard_pre_hardening_archives
- name: Require a pre-change rollback archive
ansible.builtin.assert:
that:
- wireguard_pre_hardening_archives.matched | int > 0
fail_msg: >-
Create a protected pre-hardening archive before replacing compose.yml.
- name: Render the candidate non-secret Compose declaration
ansible.builtin.template:
src: ../templates/wireguard-compose.yml.j2
dest: "{{ wireguard_compose_candidate }}"
owner: root
group: root
mode: "0644"
- name: Validate the candidate Compose declaration
ansible.builtin.command:
argv:
- docker
- compose
- --project-directory
- "{{ compose_project_dir }}"
- --file
- "{{ wireguard_compose_candidate }}"
- config
- --quiet
changed_when: false
- name: Atomically activate the validated Compose declaration
ansible.builtin.command:
argv:
- mv
- "{{ wireguard_compose_candidate }}"
- "{{ compose_project_dir }}/compose.yml"
changed_when: true