Add mjolnir

roles/matrix-bot-mjolnir/tasks/init.yml

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+- set_fact:
+    matrix_systemd_services_list: "{{ matrix_systemd_services_list + ['matrix-bot-mjolnir.service'] }}"
+  when: matrix_bot_mjolnir_enabled|bool

roles/matrix-bot-mjolnir/tasks/main.yml

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+- import_tasks: "{{ role_path }}/tasks/init.yml"
+  tags:
+    - always
+
+- import_tasks: "{{ role_path }}/tasks/validate_config.yml"
+  when: "run_setup|bool and matrix_bot_mjolnir_enabled|bool"
+  tags:
+    - setup-all
+    - setup-bot-mjolnir
+
+- import_tasks: "{{ role_path }}/tasks/setup_install.yml"
+  when: "run_setup|bool and matrix_bot_mjolnir_enabled|bool"
+  tags:
+    - setup-all
+    - setup-bot-mjolnir
+
+- import_tasks: "{{ role_path }}/tasks/setup_uninstall.yml"
+  when: "run_setup|bool and not matrix_bot_mjolnir_enabled|bool"
+  tags:
+    - setup-all
+    - setup-bot-mjolnir

roles/matrix-bot-mjolnir/tasks/setup_install.yml

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+---
+
+- set_fact:
+    matrix_bot_mjolnir_requires_restart: false
+
+- name: Ensure matrix-bot-mjolnir paths exist
+  file:
+    path: "{{ item.path }}"
+    state: directory
+    mode: 0750
+    owner: "{{ matrix_user_username }}"
+    group: "{{ matrix_user_groupname }}"
+  with_items:
+    - { path: "{{ matrix_bot_mjolnir_base_path }}", when: true }
+    - { path: "{{ matrix_bot_mjolnir_config_path }}", when: true }
+    - { path: "{{ matrix_bot_mjolnir_data_path }}", when: true }
+  when: "item.when|bool"
+
+- name: Ensure mjolnir image is pulled
+  docker_image:
+    name: "{{ matrix_bot_mjolnir_docker_image }}"
+    source: "{{ 'pull' if ansible_version.major > 2 or ansible_version.minor > 7 else omit }}"
+    force_source: "{{ matrix_bot_mjolnir_docker_image_force_pull if ansible_version.major > 2 or ansible_version.minor >= 8 else omit }}"
+    force: "{{ omit if ansible_version.major > 2 or ansible_version.minor >= 8 else matrix_bot_mjolnir_docker_image_force_pull }}"
+
+- name: Ensure matrix-bot-mjolnir config installed
+  copy:
+    content: "{{ matrix_bot_mjolnir_configuration|to_nice_yaml }}"
+    dest: "{{ matrix_bot_mjolnir_config_path }}/production.yaml"
+    mode: 0644
+    owner: "{{ matrix_user_username }}"
+    group: "{{ matrix_user_groupname }}"
+
+- name: Ensure matrix-bot-mjolnir.service installed
+  template:
+    src: "{{ role_path }}/templates/systemd/matrix-bot-mjolnir.service.j2"
+    dest: "{{ matrix_systemd_path }}/matrix-bot-mjolnir.service"
+    mode: 0644
+  register: matrix_bot_mjolnir_systemd_service_result
+
+- name: Ensure systemd reloaded after matrix-bot-mjolnir.service installation
+  service:
+    daemon_reload: yes
+  when: "matrix_bot_mjolnir_systemd_service_result.changed|bool"
+
+- name: Ensure matrix-bot-mjolnir.service restarted, if necessary
+  service:
+    name: "matrix-bot-mjolnir.service"
+    state: restarted
+  when: "matrix_bot_mjolnir_requires_restart|bool"

roles/matrix-bot-mjolnir/tasks/setup_uninstall.yml

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+---
+
+- name: Check existence of matrix-bot-mjolnir service
+  stat:
+    path: "{{ matrix_systemd_path }}/matrix-bot-mjolnir.service"
+  register: matrix_bot_mjolnir_service_stat
+
+- name: Ensure matrix-bot-mjolnir is stopped
+  service:
+    name: matrix-bot-mjolnir
+    state: stopped
+    daemon_reload: yes
+  register: stopping_result
+  when: "matrix_bot_mjolnir_service_stat.stat.exists|bool"
+
+- name: Ensure matrix-bot-mjolnir.service doesn't exist
+  file:
+    path: "{{ matrix_systemd_path }}/matrix-bot-mjolnir.service"
+    state: absent
+  when: "matrix_bot_mjolnir_service_stat.stat.exists|bool"
+
+- name: Ensure systemd reloaded after matrix-bot-mjolnir.service removal
+  service:
+    daemon_reload: yes
+  when: "matrix_bot_mjolnir_service_stat.stat.exists|bool"
+
+- name: Ensure matrix-bot-mjolnir paths don't exist
+  file:
+    path: "{{ matrix_bot_mjolnir_base_path }}"
+    state: absent
+
+- name: Ensure mjolnir Docker image doesn't exist
+  docker_image:
+    name: "{{ matrix_bot_mjolnir_docker_image }}"
+    state: absent

roles/matrix-bot-mjolnir/tasks/validate_config.yml

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+---
+
+- name: Fail if required variables are undefined
+  fail:
+    msg: "The `{{ item }}` variable must be defined and have a non-null value."
+  with_items:
+    - "matrix_bot_mjolnir_access_token"
+    - "matrix_bot_mjolnir_management_room"
+  when: "vars[item] == '' or vars[item] is none"