Move roles/matrix* to roles/custom/matrix*

This paves the way for installing other roles into `roles/galaxy` using `ansible-galaxy`,
similar to how it's done in:

- https://github.com/spantaleev/gitea-docker-ansible-deploy
- https://github.com/spantaleev/nextcloud-docker-ansible-deploy

In the near future, we'll be removing a lot of the shared role code from here
and using upstream roles for it. Some of the core `matrix-*` roles have
already been extracted out into other reusable roles:

- https://github.com/devture/com.devture.ansible.role.postgres
- https://github.com/devture/com.devture.ansible.role.systemd_docker_base
- https://github.com/devture/com.devture.ansible.role.timesync
- https://github.com/devture/com.devture.ansible.role.vars_preserver
- https://github.com/devture/com.devture.ansible.role.playbook_runtime_messages
- https://github.com/devture/com.devture.ansible.role.playbook_help

We just need to migrate to those.

roles/custom/matrix-bridge-beeper-linkedin/tasks/init.yml

@@ -0,0 +1,22 @@
+---
+
+- ansible.builtin.set_fact:
+    matrix_systemd_services_list: "{{ matrix_systemd_services_list + ['matrix-beeper-linkedin.service'] }}"
+  when: matrix_beeper_linkedin_enabled | bool
+
+# If the matrix-synapse role is not used, these variables may not exist.
+- ansible.builtin.set_fact:
+    matrix_homeserver_container_runtime_injected_arguments: >
+      {{
+        matrix_homeserver_container_runtime_injected_arguments | default([])
+        +
+        ["--mount type=bind,src={{ matrix_beeper_linkedin_config_path }}/registration.yaml,dst=/matrix-beeper-linkedin-registration.yaml,ro"]
+      }}
+
+    matrix_homeserver_app_service_runtime_injected_config_files: >
+      {{
+        matrix_homeserver_app_service_runtime_injected_config_files | default([])
+        +
+        ["/matrix-beeper-linkedin-registration.yaml"]
+      }}
+  when: matrix_beeper_linkedin_enabled | bool

roles/custom/matrix-bridge-beeper-linkedin/tasks/main.yml

@@ -0,0 +1,23 @@
+---
+
+- ansible.builtin.import_tasks: "{{ role_path }}/tasks/init.yml"
+  tags:
+    - always
+
+- ansible.builtin.import_tasks: "{{ role_path }}/tasks/validate_config.yml"
+  when: "run_setup | bool and matrix_beeper_linkedin_enabled | bool"
+  tags:
+    - setup-all
+    - setup-beeper-linkedin
+
+- ansible.builtin.import_tasks: "{{ role_path }}/tasks/setup_install.yml"
+  when: "run_setup and matrix_beeper_linkedin_enabled"
+  tags:
+    - setup-all
+    - setup-beeper-linkedin
+
+- ansible.builtin.import_tasks: "{{ role_path }}/tasks/setup_uninstall.yml"
+  when: "run_setup and not matrix_beeper_linkedin_enabled"
+  tags:
+    - setup-all
+    - setup-beeper-linkedin

roles/custom/matrix-bridge-beeper-linkedin/tasks/setup_install.yml

@@ -0,0 +1,103 @@
+---
+
+# If the matrix-synapse role is not used, `matrix_synapse_role_executed` won't exist.
+# We don't want to fail in such cases.
+- name: Fail if matrix-synapse role already executed
+  ansible.builtin.fail:
+    msg: >-
+      The matrix-bridge-beeper-linkedin role needs to execute before the matrix-synapse role.
+  when: "matrix_synapse_role_executed | default(False)"
+- name: Ensure Beeper LinkedIn paths exists
+  ansible.builtin.file:
+    path: "{{ item.path }}"
+    state: directory
+    mode: 0750
+    owner: "{{ matrix_user_username }}"
+    group: "{{ matrix_user_groupname }}"
+  with_items:
+    - {path: "{{ matrix_beeper_linkedin_base_path }}", when: true}
+    - {path: "{{ matrix_beeper_linkedin_config_path }}", when: true}
+    - {path: "{{ matrix_beeper_linkedin_data_path }}", when: true}
+    - {path: "{{ matrix_beeper_linkedin_docker_src_files_path }}", when: "{{ matrix_beeper_linkedin_container_image_self_build }}"}
+  when: "item.when | bool"
+
+
+- name: Ensure Beeper LinkedIn image is pulled
+  community.docker.docker_image:
+    name: "{{ matrix_beeper_linkedin_docker_image }}"
+    source: "{{ 'pull' if ansible_version.major > 2 or ansible_version.minor > 7 else omit }}"
+    force_source: "{{ matrix_beeper_linkedin_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_beeper_linkedin_docker_image_force_pull }}"
+  when: "not matrix_beeper_linkedin_container_image_self_build | bool"
+  register: result
+  retries: "{{ matrix_container_retries_count }}"
+  delay: "{{ matrix_container_retries_delay }}"
+  until: result is not failed
+
+- when: "matrix_beeper_linkedin_container_image_self_build | bool"
+  block:
+    - name: Ensure Beeper LinkedIn repository is present on self-build
+      ansible.builtin.git:
+        repo: "{{ matrix_beeper_linkedin_container_image_self_build_repo }}"
+        dest: "{{ matrix_beeper_linkedin_docker_src_files_path }}"
+        version: "{{ matrix_beeper_linkedin_container_image_self_build_branch }}"
+        force: "yes"
+      become: true
+      become_user: "{{ matrix_user_username }}"
+      register: matrix_beeper_linkedin_git_pull_results
+
+    # Building the container image (using the default Dockerfile) requires that a docker-requirements.txt file be generated.
+    # See: https://github.com/beeper/linkedin/blob/94442db17ccb9769b377cdb8e4bf1cb3955781d7/.gitlab-ci.yml#L30-40
+    - name: Ensure docker-requirements.txt is generated before building Beeper LinkedIn Docker Image
+      ansible.builtin.command:
+        cmd: |
+          {{ matrix_host_command_docker }} run
+          --rm
+          --entrypoint=/bin/sh
+          --mount type=bind,src={{ matrix_beeper_linkedin_docker_src_files_path }},dst=/work
+          -w /work
+          docker.io/python:3.9.6-buster
+          -c "pip install poetry && poetry export --without-hashes -E e2be -E images -E metrics | sed 's/==.*//g' > docker-requirements.txt"
+      register: matrix_beeper_linkedin_generate_docker_requirements_result
+      changed_when: matrix_beeper_linkedin_generate_docker_requirements_result.rc == 0
+
+    - name: Ensure Beeper LinkedIn Docker image is built
+      community.docker.docker_image:
+        name: "{{ matrix_beeper_linkedin_docker_image }}"
+        source: build
+        force_source: "{{ matrix_beeper_linkedin_git_pull_results.changed 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_beeper_linkedin_git_pull_results.changed }}"
+        build:
+          dockerfile: Dockerfile
+          path: "{{ matrix_beeper_linkedin_docker_src_files_path }}"
+          pull: true
+          args:
+            TARGETARCH: "{{ matrix_architecture }}"
+
+- name: Ensure beeper-linkedin config.yaml installed
+  ansible.builtin.copy:
+    content: "{{ matrix_beeper_linkedin_configuration | to_nice_yaml(indent=2, width=999999) }}"
+    dest: "{{ matrix_beeper_linkedin_config_path }}/config.yaml"
+    mode: 0644
+    owner: "{{ matrix_user_username }}"
+    group: "{{ matrix_user_groupname }}"
+
+- name: Ensure beeper-linkedin registration.yaml installed
+  ansible.builtin.copy:
+    content: "{{ matrix_beeper_linkedin_registration | to_nice_yaml(indent=2, width=999999) }}"
+    dest: "{{ matrix_beeper_linkedin_config_path }}/registration.yaml"
+    mode: 0644
+    owner: "{{ matrix_user_username }}"
+    group: "{{ matrix_user_groupname }}"
+
+- name: Ensure matrix-beeper-linkedin.service installed
+  ansible.builtin.template:
+    src: "{{ role_path }}/templates/systemd/matrix-beeper-linkedin.service.j2"
+    dest: "{{ matrix_systemd_path }}/matrix-beeper-linkedin.service"
+    mode: 0644
+  register: matrix_beeper_linkedin_systemd_service_result
+
+- name: Ensure systemd reloaded after matrix-beeper-linkedin.service installation
+  ansible.builtin.service:
+    daemon_reload: true
+  when: "matrix_beeper_linkedin_systemd_service_result.changed"

roles/custom/matrix-bridge-beeper-linkedin/tasks/setup_uninstall.yml

@@ -0,0 +1,25 @@
+---
+
+- name: Check existence of matrix-beeper-linkedin service
+  ansible.builtin.stat:
+    path: "{{ matrix_systemd_path }}/matrix-beeper-linkedin.service"
+  register: matrix_beeper_linkedin_service_stat
+
+- name: Ensure matrix-beeper-linkedin is stopped
+  ansible.builtin.service:
+    name: matrix-beeper-linkedin
+    state: stopped
+    enabled: false
+    daemon_reload: true
+  when: "matrix_beeper_linkedin_service_stat.stat.exists"
+
+- name: Ensure matrix-beeper-linkedin.service doesn't exist
+  ansible.builtin.file:
+    path: "{{ matrix_systemd_path }}/matrix-beeper-linkedin.service"
+    state: absent
+  when: "matrix_beeper_linkedin_service_stat.stat.exists"
+
+- name: Ensure systemd reloaded after matrix-beeper-linkedin.service removal
+  ansible.builtin.service:
+    daemon_reload: true
+  when: "matrix_beeper_linkedin_service_stat.stat.exists"

roles/custom/matrix-bridge-beeper-linkedin/tasks/validate_config.yml

@@ -0,0 +1,10 @@
+---
+
+- name: Fail if required settings not defined
+  ansible.builtin.fail:
+    msg: >-
+      You need to define a required configuration setting (`{{ item }}`).
+  when: "vars[item] == ''"
+  with_items:
+    - "matrix_beeper_linkedin_appservice_token"
+    - "matrix_beeper_linkedin_homeserver_token"