infra/ansible/roles/profile_aegis/tasks/main.yml

---
- name: Require Aegis iCloudPD Apple ID
  tags: [aegis, icloudpd]
  ansible.builtin.assert:
    that:
      - aegis_icloudpd_apple_id | length > 0
    fail_msg: Define vault_aegis_icloudpd_apple_id before applying the Aegis profile.
  no_log: true

- name: Require completed Aegis network placeholders
  tags: [aegis, firewall, services]
  ansible.builtin.assert:
    that:
      - aegis_lan_subnet != 'CHANGEME_LAN_SUBNET'
      - aegis_firewalld_zone | length > 0
      - aegis_adguard_web_port | int > 0
      - aegis_adguard_web_port | int < 65536
      - aegis_ssh_allowed_users | length > 0
    fail_msg: Define the Aegis LAN subnet, firewalld zone, AdGuard web port, and SSH users.

- name: Set Aegis hostname
  tags: [aegis, services]
  ansible.builtin.hostname:
    name: "{{ aegis_hostname }}"

- name: Create Aegis persistent container directories
  tags: [aegis, containers]
  ansible.builtin.file:
    path: "{{ item }}"
    state: directory
    owner: root
    group: root
    mode: "0755"
  loop:
    - /var/lib/adguard/work
    - /var/lib/adguard/conf
    - /var/lib/icloudpd/data
    - /var/lib/icloudpd/config

- name: Create Quadlet configuration directory
  tags: [aegis, containers]
  ansible.builtin.file:
    path: /etc/containers/systemd
    state: directory
    owner: root
    group: root
    mode: "0755"

- name: Render Aegis Quadlet units
  tags: [aegis, containers]
  ansible.builtin.template:
    src: "{{ item.src }}"
    dest: "/etc/containers/systemd/{{ item.dest }}"
    owner: root
    group: root
    mode: "0644"
  loop:
    - src: adguardhome.container.j2
      dest: adguardhome.container
    - src: icloudpd.container.j2
      dest: icloudpd.container
  loop_control:
    label: "{{ item.dest }}"
  no_log: "{{ item.dest == 'icloudpd.container' }}"
  notify: Restart Aegis Quadlet services

- name: Create Aegis systemd-resolved configuration directory
  tags: [aegis, adguard, dns, services]
  ansible.builtin.file:
    path: /etc/systemd/resolved.conf.d
    state: directory
    owner: root
    group: root
    mode: "0755"

- name: Disable Aegis systemd-resolved DNS stub listener
  tags: [aegis, adguard, dns, services]
  ansible.builtin.template:
    src: 10-adguard-dns.conf.j2
    dest: /etc/systemd/resolved.conf.d/10-adguard-dns.conf
    owner: root
    group: root
    mode: "0644"
  notify:
    - Restart Aegis systemd-resolved
    - Restart Aegis Quadlet services

- name: Point Aegis resolver at the full systemd-resolved configuration
  tags: [aegis, adguard, dns, services]
  ansible.builtin.file:
    src: ../run/systemd/resolve/resolv.conf
    dest: /etc/resolv.conf
    state: link
    force: true
  notify: Restart Aegis systemd-resolved

- name: Enable Aegis firewalld
  tags: [aegis, firewall, services]
  ansible.builtin.systemd:
    name: firewalld.service
    enabled: true
    state: started

- name: Render Aegis AdGuard web firewalld service
  tags: [aegis, firewall]
  ansible.builtin.template:
    src: aegis-adguard-web.xml.j2
    dest: /etc/firewalld/services/aegis-adguard-web.xml
    owner: root
    group: root
    mode: "0644"

- name: Reload firewalld custom services
  tags: [aegis, firewall]
  ansible.builtin.command:
    argv:
      - firewall-cmd
      - --reload
  changed_when: false
  when: not ansible_check_mode

- name: Remove unrestricted Aegis services from firewalld zone
  tags: [aegis, firewall]
  ansible.posix.firewalld:
    service: "{{ item }}"
    permanent: true
    immediate: true
    state: disabled
    zone: "{{ aegis_firewalld_zone }}"
  loop:
    - ssh
    - dns
    - http
    - aegis-adguard-web
  loop_control:
    label: "{{ item }}"

- name: Remove retired Aegis TLS access rule
  tags: [aegis, firewall]
  ansible.posix.firewalld:
    rich_rule: 'rule family="ipv4" source address="{{ aegis_lan_subnet }}" port port="853" protocol="tcp" accept'
    permanent: true
    immediate: true
    state: disabled
    zone: "{{ aegis_firewalld_zone }}"

- name: Allow Aegis services from the LAN only
  tags: [aegis, firewall]
  ansible.posix.firewalld:
    rich_rule: "{{ item }}"
    permanent: true
    immediate: true
    state: enabled
    zone: "{{ aegis_firewalld_zone }}"
  loop:
    - 'rule family="ipv4" source address="{{ aegis_lan_subnet }}" service name="ssh" accept'
    - 'rule family="ipv4" source address="{{ aegis_lan_subnet }}" service name="dns" accept'
    - 'rule family="ipv4" source address="{{ aegis_lan_subnet }}" service name="aegis-adguard-web" accept'
  loop_control:
    label: "{{ item }}"

- name: Check the standard Aegis SSH authorized keys file
  tags: [aegis, ssh, services]
  ansible.builtin.stat:
    path: "{{ aegis_ssh_user_home }}/.ssh/authorized_keys"
  register: aegis_authorized_keys

- name: Ensure Aegis SSH authorized key fragments directory exists
  tags: [aegis, ssh, services]
  ansible.builtin.file:
    path: "{{ aegis_ssh_user_home }}/.ssh/authorized_keys.d"
    state: directory
    owner: "{{ ansible_user }}"
    group: "{{ ansible_user }}"
    mode: "0700"
  when: aegis_ssh_authorized_keys | length > 0

- name: Manage Aegis SSH authorized key fragments
  tags: [aegis, ssh, services]
  ansible.builtin.copy:
    content: "{{ item.key }}\n"
    dest: "{{ aegis_ssh_user_home }}/.ssh/authorized_keys.d/{{ item.name }}"
    owner: "{{ ansible_user }}"
    group: "{{ ansible_user }}"
    mode: "0600"
  loop: "{{ aegis_ssh_authorized_keys }}"
  loop_control:
    label: "{{ item.name }}"
  when: aegis_ssh_authorized_keys | length > 0

- name: Find Aegis SSH authorized key fragments
  tags: [aegis, ssh, services]
  ansible.builtin.find:
    paths: "{{ aegis_ssh_user_home }}/.ssh/authorized_keys.d"
    file_type: file
    recurse: false
  register: aegis_authorized_key_fragments

- name: Require an Aegis SSH authorized key before hardening
  tags: [aegis, ssh, services]
  ansible.builtin.assert:
    that:
      - >-
        (aegis_ssh_authorized_keys | length > 0)
        or (aegis_authorized_keys.stat.exists and aegis_authorized_keys.stat.size | int > 0)
        or aegis_authorized_key_fragments.matched | int > 0
    fail_msg: Add a public key for the Ansible SSH user before disabling password authentication.

- name: Ensure Aegis SSH configuration drop-in directory exists
  tags: [aegis, ssh, services]
  ansible.builtin.file:
    path: /etc/ssh/sshd_config.d
    state: directory
    owner: root
    group: root
    mode: "0755"

- name: Ensure Aegis SSH drop-ins are loaded before other settings
  tags: [aegis, ssh, services]
  ansible.builtin.lineinfile:
    path: /etc/ssh/sshd_config
    regexp: '^\s*Include\s+/etc/ssh/sshd_config\.d/\*\.conf\s*$'
    line: Include /etc/ssh/sshd_config.d/*.conf
    insertbefore: BOF
    state: present
    validate: "sshd -t -f %s"

- name: Render Aegis SSH hardening drop-in
  tags: [aegis, ssh, services]
  ansible.builtin.template:
    src: 00-aegis-hardening.conf.j2
    dest: /etc/ssh/sshd_config.d/00-aegis-hardening.conf
    owner: root
    group: root
    mode: "0600"
  notify: Reload Aegis SSH

- name: Validate Aegis SSH configuration
  tags: [aegis, ssh, services]
  ansible.builtin.command:
    argv:
      - sshd
      - -t
  changed_when: false
  when: not ansible_check_mode

- name: Read effective Aegis SSH daemon configuration
  tags: [aegis, ssh, services]
  ansible.builtin.command:
    argv:
      - sshd
      - -T
      - -C
      - "user={{ ansible_user }},host={{ aegis_hostname }},addr=127.0.0.1"
  register: aegis_sshd_effective_configuration
  changed_when: false
  when: not ansible_check_mode

- name: Verify effective Aegis SSH hardening
  tags: [aegis, ssh, services]
  ansible.builtin.assert:
    that:
      - "'permitrootlogin no' in aegis_sshd_effective_configuration.stdout_lines"
      - "'pubkeyauthentication yes' in aegis_sshd_effective_configuration.stdout_lines"
      - "'passwordauthentication no' in aegis_sshd_effective_configuration.stdout_lines"
      - "'kbdinteractiveauthentication no' in aegis_sshd_effective_configuration.stdout_lines"
      - "'allowusers ' + (aegis_ssh_allowed_users | join(' ')) in aegis_sshd_effective_configuration.stdout_lines"
  when: not ansible_check_mode

- name: Install Wake-on-LAN helper for Ikaros
  tags: [aegis, wol]
  ansible.builtin.template:
    src: wake-ikaros.j2
    dest: /usr/local/bin/wake-ikaros
    owner: root
    group: root
    mode: "0755"

- name: Enable Aegis Quadlet services and automatic updates
  tags: [aegis, containers, services]
  ansible.builtin.systemd:
    name: "{{ item }}"
    enabled: true
    state: started
    daemon_reload: true
  loop:
    - adguardhome.service
    - icloudpd.service
    - podman-auto-update.timer
  loop_control:
    label: "{{ item }}"