feat(synapse): add ansible role

roles/synapse/tasks/check.yml

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+---
+- name: Ensure synapse_state is valid
+  ansible.builtin.fail:
+    msg: "State '{{ synapse_state }}' is not known, supported states are {{ synapse_states | join(', ') }}"
+  when: synapse_state not in synapse_states
+
+- name: Ensure synapse deployment method is supported
+  ansible.builtin.fail:
+    msg: >-
+      Deployment method '{{ synapse_deployment_method }}'
+      is unknown! Supported methods are:
+      {{ synapse_deployment_methods | join(', ') }}
+  when: synapse_deployment_method not in synapse_deployment_methods
+
+- name: Ensure required variables are given
+  ansible.builtin.fail:
+    msg: "Required variable '{{ item }}' is undefined!"
+  loop: "{{ synapse_required_variables }}"
+  when: >-2
+    item not in hostvars[ansible_host]
+    or hostvars[ansible_host][item] | length == 0
+
+- name: Ensure conditionally required variables are given
+  ansible.builtin.fail:
+    msg: "Required variable '{{ item.name }}' is undefined!"
+  loop: "{{ synapse_conditionally_required_variables }}"
+  loop_control:
+    label: "{{ item.name }}"
+  when: >-2
+    item.when
+    and (item.name not in hostvars[ansible_host]
+        or hostvars[ansible_host][item.name] | length == 0)

roles/synapse/tasks/configure.yml

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+---
+- name: Ensure synapse user '{{ synapse_user }}' is {{ synapse_state }}
+  ansible.builtin.user:
+    name: "{{ synapse_user }}"
+    state: "{{ synapse_state }}"
+    system: "{{ synapse_user_system | default(true, true) }}"
+    create_home: "{{ synapse_user_create_home | default(false, true) }}"
+    groups: "{{ synapse_user_groups | default(omit, true) }}"
+    append: "{{ (synapse_user_groups is defined) | ternary(true, omit) }}"
+  register: synapse_user_info
+
+- name: Ensure directories for synapse are {{ synapse_state }}
+  ansible.builtin.file:
+    path: "{{ item.path }}"
+    state: "{{ (synapse_state == 'present') | ternary('directory', 'absent') }}"
+    mode: "{{ item.mode | default('0750') }}"
+    owner: "{{ item.owner | default(synapse_user_info.uid | default(synapse_user)) }}"
+    group: "{{ item.group | default(synapse_user_info.group | default(synapse_user)) }}"
+  loop:
+    - path: "{{ synapse_base_path }}"
+      mode: "0755"
+    - path: "{{ synapse_config_path }}"
+      mode: "0755"
+    - path: "{{ synapse_data_path }}"
+      mode: "0755"
+    - path: "{{ synapse_media_store_path }}"
+      mode: "0755"
+    - path: "{{ synapse_log_path }}"
+      mode: "0755"
+  loop_control:
+    label: "{{ item.path }}"
+
+- name: Ensure synapse signing key is generated
+  finallycoffee.matrix.synapse_signing_key:
+    path: "{{ synapse_signing_key_file }}"
+    state: "{{ synapse_state }}"
+  when: synapse_role_generate_signing_key
+  notify:
+    - synapse-restart
+
+- name: Ensure configuration files are templated
+  ansible.builtin.copy:
+    dest: "{{ config_file.path }}"
+    content: "{{ config_file.content }}"
+    mode: "{{ config_file.mode | default('0640') }}"
+    owner: "{{ config_file.owner | default(synapse_user_info.uid | default(synapse_user)) }}"
+    group: "{{ config_file.group | default(synapse_user_info.group | default(synapse_user)) }}"
+  loop: >-
+    {{ synapse_configs_to_write
+      + (synapse_keys_to_write if not synapse_role_generate_signing_key else [])
+      + synapse_configs | default([]) }}
+  loop_control:
+    loop_var: config_file
+    label: "{{ config_file.path }}"
+  vars:
+    synapse_configs_to_write:
+      - content: "{{ synapse_homeserver_config | to_nice_yaml(width=1000) }}"
+        path: "{{ synapse_homeserver_config_file }}"
+      - content: "{{ synapse_log_config | to_nice_yaml(width=1000) }}"
+        path: "{{ synapse_logging_config_file }}"
+    synapse_keys_to_write:
+      - content: "{{ synapse_signing_key }}"
+        path: "{{ synapse_signing_key_file }}"
+        mode: "0640"
+  notify:
+    - synapse-restart

roles/synapse/tasks/deploy-docker.yml

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+---
+- name: Ensure container image '{{ synapse_container_image }}' is {{ synapse_state }} on host
+  community.docker.docker_image:
+    name: "{{ synapse_container_image }}"
+    state: "{{ synapse_state }}"
+    source: "{{ synapse_container_image_source }}"
+    force_source: "{{ synapse_container_image_tag | default(false, true) | bool }}"
+  register: synapse_container_image_info
+  until: synapse_container_image_info is success
+  retries: 4
+  delay: 2
+
+- name: Ensure synapse container '{{ synapse_container_name }}' is {{ (synapse_state == 'present') | ternary('started', 'absent') }}
+  community.docker.docker_container:
+    name: "{{ synapse_container_name }}"
+    image: "{{ synapse_container_image }}"
+    env: "{{ synapse_container_env | default(omit, true) }}"
+    user: "{{ synapse_container_user | default(omit, true) }}"
+    groups: "{{ synapse_container_groups | default(omit, true) }}"
+    ports: "{{ synapse_container_ports | default(omit, true) }}"
+    labels: "{{ synapse_container_labels | default(omit, true) }}"
+    ulimits: "{{ synapse_container_ulimits | default(omit, true) }}"
+    volumes: "{{ synapse_container_all_volumes }}"
+    networks: "{{ synapse_container_networks | default(omit, true) }}"
+    purge_networks: "{{ synapse_container_purge_networks | default(omit, true) }}"
+    dns_servers: "{{ synapse_container_dns_servers | default(omit, true) }}"
+    etc_hosts: "{{ synapse_container_etc_hosts | default(omit, true) }}"
+    memory: "{{ synapse_container_memory | default(omit, true) }}"
+    memory_reservation: "{{ synapse_container_memory_reservation | default(omit, true) }}"
+    memory_swap: "{{ synapse_container_memory_swap | default(omit, true) }}"
+    restart_policy: "{{ synapse_container_restart_policy }}"
+    state: "{{ synapse_container_state }}"

roles/synapse/tasks/main.yml

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+---
+
+- name: Ensure checks are passing
+  ansible.builtin.include_tasks:
+    file: "check.yml"
+
+- name: Ensure base configuration is created
+  ansible.builtin.include_tasks:
+    file: "configure.yml"
+
+- name: Deploy using {{ synapse_deployment_method }}
+  ansible.builtin.include_tasks:
+    file: "deploy-{{ synapse_deployment_method }}.yml"