Add Debian/Official Docker repo toggle

- Default docker_official toggle to false (for now)
- Preempt MariaDB restart before container restarts
- Start containers in a handler

dev/host_vars/gitea.yml

@@ -14,6 +14,7 @@ root_gpgkeys:
     id: FBF673CEEC030F8AECA814E73EDA9C3441EDA925
 
 # docker
+docker_official: true # docker's apt repos
 docker_users:
   - vagrant
 
@@ -33,6 +34,7 @@ docker_compose_deploy:
   - name: gitea
     url: https://github.com/krislamo/gitea
     version: b0ce66f6a1ab074172eed79eeeb36d7e9011ef8f
+    enabled: true
     env:
       USER_UID: "{{ users.git.uid }}"
       USER_GID: "{{ users.git.gid }}"

roles/docker/defaults/main.yml

@@ -1,6 +1,11 @@
+docker_apt_keyring: /etc/apt/keyrings/docker.asc
+docker_apt_keyring_hash: 1500c1f56fa9e26b9b8f42452a553675796ade0807cdce11975eb98170b3a570
+docker_apt_keyring_url: https://download.docker.com/linux/debian/gpg
+docker_apt_repo: https://download.docker.com/linux/debian
 docker_compose_root: /var/lib/compose
 docker_compose_service: compose
-docker_compose: /usr/bin/docker-compose
+docker_compose: "{{ (docker_official | bool) | ternary('/usr/bin/docker compose', '/usr/bin/docker-compose') }}"
+docker_official: false
 docker_repos_keys: "{{ docker_repos_path }}/.keys"
 docker_repos_keytype: rsa
 docker_repos_path: /srv/.compose_repos

roles/docker/handlers/main.yml

@@ -21,6 +21,19 @@
   when: item.changed
   listen: compose_restart
 
+- name: Restart MariaDB
+  ansible.builtin.service:
+    name: mariadb
+    state: restarted
+  when: not mariadb_restarted
+  listen: restart_mariadb # hijack handler for early restart
+
+- name: Set MariaDB as restarted
+  set_fact:
+    mariadb_restarted: true
+  when: not mariadb_restarted
+  listen: restart_mariadb
+
 - name: Restart {{ docker_compose_service }} services
   ansible.builtin.systemd:
     state: restarted
@@ -28,3 +41,14 @@
   loop: "{{ compose_restart_list | unique }}"
   when: compose_restart_list is defined
   listen: compose_restart
+
+- name: Start {{ docker_compose_service }} services and enable on boot
+  ansible.builtin.service:
+    name: "{{ docker_compose_service }}@{{ item.name }}"
+    state: started
+    enabled: true
+  loop: "{{ docker_compose_deploy }}"
+  loop_control:
+    label: "{{ docker_compose_service }}@{{ item.name }}"
+  when: item.enabled is defined and item.enabled is true
+  listen: compose_enable

roles/docker/tasks/main.yml

@@ -1,7 +1,37 @@
-- name: Install Docker
+- name: Add official Docker APT key
+  ansible.builtin.get_url:
+    url: "{{ docker_apt_keyring_url }}"
+    dest: "{{ docker_apt_keyring }}"
+    checksum: "sha256:{{ docker_apt_keyring_hash }}"
+  when: docker_official
+
+- name: Remove official Docker APT key
+  ansible.builtin.file:
+    path: "{{ docker_apt_keyring }}"
+    state: absent
+  when: not docker_official
+
+- name: Add/remove official Docker APT repository
+  ansible.builtin.apt_repository:
+    repo: >
+      deb [arch=amd64 signed-by={{ docker_apt_keyring }}]
+      {{ docker_apt_repo }} {{ ansible_distribution_release }} stable
+    state: "{{ 'present' if docker_official else 'absent' }}"
+    filename: "{{ docker_apt_keyring | regex_replace('^.*/', '') }}"
+
+- name: Install/uninstall Docker from Debian repositories
   ansible.builtin.apt:
-    name: ['docker.io', 'docker-compose']
+    name: ['docker.io', 'docker-compose', 'containerd', 'runc']
-    state: present
+    state: "{{ 'absent' if docker_official else 'present' }}"
+    autoremove: true
+    update_cache: true
+
+- name: Install/uninstall Docker from Docker repositories
+  ansible.builtin.apt:
+    name: ['docker-ce', 'docker-ce-cli', 'containerd.io',
+           'docker-buildx-plugin', 'docker-compose-plugin']
+    state: "{{ 'present' if docker_official else 'absent' }}"
+    autoremove: true
     update_cache: true
 
 - name: Login to private registry
@@ -15,20 +45,20 @@
   ansible.builtin.file:
     path: "{{ docker_compose_root }}"
     state: directory
-    mode: 0500
+    mode: "500"
 
 - name: Install docker-compose systemd service
   ansible.builtin.template:
     src: docker-compose.service.j2
     dest: "/etc/systemd/system/{{ docker_compose_service }}@.service"
-    mode: 0400
+    mode: "400"
   notify: compose_systemd
 
 - name: Create directories to clone docker-compose repositories
   ansible.builtin.file:
     path: "{{ item }}"
     state: directory
-    mode: 0400
+    mode: "400"
   loop:
     - "{{ docker_repos_path }}"
     - "{{ docker_repos_keys }}"
@@ -39,7 +69,13 @@
     path: "{{ docker_repos_keys }}/id_{{ docker_repos_keytype }}"
     type: "{{ docker_repos_keytype }}"
     comment: "{{ ansible_hostname }}-deploy-key"
-    mode: 0400
+    mode: "400"
+    state: present
+  when: docker_compose_deploy is defined
+
+- name: Check for git installation
+  ansible.builtin.apt:
+    name: git
     state: present
   when: docker_compose_deploy is defined
 
@@ -61,7 +97,7 @@
   ansible.builtin.file:
     path: "{{ docker_compose_root }}/{{ item.name }}"
     state: directory
-    mode: 0400
+    mode: "400"
   loop: "{{ docker_compose_deploy }}"
   loop_control:
     label: "{{ item.name }}"
@@ -73,7 +109,9 @@
     dest: "{{ docker_compose_root }}/{{ item.name }}/docker-compose.yml"
   delegate_to: "{{ inventory_hostname }}"
   register: compose_update
-  notify: compose_restart
+  notify:
+    - compose_restart
+    - compose_enable
   loop: "{{ docker_compose_deploy | default([]) }}"
   loop_control:
     label: "{{ item.name }}"
@@ -83,9 +121,11 @@
   ansible.builtin.template:
     src: docker-compose-env.j2
     dest: "{{ docker_compose_root }}/{{ item.name }}/.env"
-    mode: 0400
+    mode: "400"
   register: compose_env_update
-  notify: compose_restart
+  notify:
+    - compose_restart
+    - compose_enable
   no_log: "{{ docker_compose_env_nolog | default(true) }}"
   loop: "{{ docker_compose_deploy }}"
   loop_control:
@@ -105,13 +145,4 @@
     name: docker
     state: started
     enabled: true
-
+  when: docker_managed | default(true)
-- name: Start docker-compose services and enable on boot
-  ansible.builtin.service:
-    name: "{{ docker_compose_service }}@{{ item.name }}"
-    state: started
-    enabled: true
-  loop: "{{ docker_compose_deploy }}"
-  loop_control:
-    label: "{{ docker_compose_service }}@{{ item.name }}"
-  when: item.enabled is defined and item.enabled is true

roles/docker/templates/docker-compose.service.j2

@@ -1,5 +1,5 @@
 [Unit]
-Description=%i docker-compose service
+Description=%i {{ docker_compose_service }} service
 PartOf=docker.service
 After=docker.service
 

roles/gitea/tasks/main.yml

@@ -71,9 +71,3 @@
     src: fail2ban-jail.conf.j2
     dest: /etc/fail2ban/jail.d/gitea.conf
   notify: restart_fail2ban
-
-- name: Start and enable Gitea service
-  ansible.builtin.service:
-    name: "{{ docker_compose_service }}@{{ gitea_name }}"
-    state: started
-    enabled: true

roles/mariadb/handlers/main.yml

@@ -2,4 +2,11 @@
   ansible.builtin.service:
     name: mariadb
     state: restarted
+  when: not mariadb_restarted
+  listen: restart_mariadb
+
+- name: Set MariaDB as restarted
+  set_fact:
+    mariadb_restarted: true
+  when: not mariadb_restarted
   listen: restart_mariadb

roles/mariadb/tasks/main.yml

@@ -3,6 +3,10 @@
     name: mariadb-server
     state: present
 
+- name: Set MariaDB restarted fact
+  set_fact:
+    mariadb_restarted: false
+
 - name: Regather facts for the potentially new docker0 interface
   ansible.builtin.setup: