Add matrix-registration-bot (#1771)
* Add matrix-registration-bot This adds an install and uninstall task plus helpers. The bot is disabled by default. This commit does not include documentation, yet. In short, the bot can be enabled by adding matrix_bot_matrix_registration_bot_enabled: true matrix_bot_matrix_registration_bot_matrix_user_password: "verysecret" matrix_bot_matrix_registration_bot_matrix_admin_token: "supersecret" to the host_vars * Change bot username to bot.matrix-registration-bot following convention * Address smaller remarks, fix local docker build * Switch to an env file * Add environment variables extension for additional config * Add documentation for the matrix-registration-bot * Add screenshot on how to obtain admin access token * Use bot as admin to only have one access token (bot and admin api) * Use cleaner setting of matrix_synapse_registration_requires_token * Use config file for cleaner more secure usage * Delete unneeded env * Rename vars to make usage clear * Fix typos/wording and add notice about logging out * Convert configuration to use |to_json * Reorder role includes Nothing should be after `matrix-common-after`. `matrix-bot-matrix-registration-bot` can probably be anywhere, but it makes sense to put it next to the other `matrix-bot-*` roles. * Minor group_vars/matrix_servers touchups Co-authored-by: Slavi Pantaleev <slavi@devture.com>development
Julian-Samuel Gebühr
3 years ago
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# Setting up matrix-registration-bot (optional)
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The playbook can install and configure [matrix-registration-bot](https://github.com/moanos/matrix-registration-bot) for you.
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The bot allows you to easily **create and manage registration tokens**. It can be used for an invitation-based server,
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where you invite someone by sending them a registration token. They can register as normal but have to provide a valid
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registration token in a final step of the registration.
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See the project's [documentation](https://github.com/moan0s/matrix-registration-bot#supported-commands) to learn what it
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does and why it might be useful to you.
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## Registering the bot user
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By default, the playbook will set use the bot with a username like this: `@bot.matrix-registration-bot:DOMAIN`.
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(to use a different username, adjust the `matrix_bot_matrix_registration_bot_matrix_user_id_localpart` variable).
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You **need to register the bot user manually** before setting up the bot. You can use the playbook to [register a new user](registering-users.md):
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```
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ansible-playbook -i inventory/hosts setup.yml --extra-vars='username=bot.matrix-registration-bot password=PASSWORD_FOR_THE_BOT admin=yes' --tags=register-user
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```
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Choose a strong password for the bot. You can generate a good password with a command like this: `pwgen -s 64 1`.
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## Obtaining an admin access token
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In order to use the bot you need to add an admin user's access token token to the configuration. As you created an admin user for the
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bot, it is recommended to obtain an access token by logging into Element/Schildichat with the bot account
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(using the password you set) and navigate to `Settings->Help&About` and scroll to the bottom.
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You can expand "Access token" to copy it.
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**IMPORTANT**: once you copy the token, just close the Matrix client window/tab. Do not "log out", as that would invalidate the token.
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## Adjusting the playbook configuration
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Add the following configuration to your `inventory/host_vars/matrix.DOMAIN/vars.yml` file:
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```yaml
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matrix_bot_matrix_registration_bot_enabled: true
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# Token obtained via logging into the bot account (see above)
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matrix_bot_matrix_registration_bot_bot_access_token: "syt_bW9hbm9z_XXXXXXXXXXXXXr_2kuzbE"
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# Enables registration
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matrix_synapse_enable_registration: true
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# Restrict registration to users with a token
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matrix_synapse_registration_requires_token: true
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```
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## Installing
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After configuring the playbook, run the [installation](installing.md) command again:
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```
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ansible-playbook -i inventory/hosts setup.yml --tags=setup-all,start
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```
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## Usage
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To use the bot, create a **non-encrypted** room and invite `@bot.matrix-reminder-bot:DOMAIN` (where `YOUR_DOMAIN` is your base domain, not the `matrix.` domain).
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In this room send `help` and the bot will reply with all options.
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You can also refer to the upstream [Usage documentation](https://github.com/moan0s/matrix-registration-bot#supported-commands).
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If you have any questions, or if you need help setting it up, read the [troublshooting guide](https://github.com/moan0s/matrix-registration-bot/blob/main/docs/troubleshooting.md)
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or join [#matrix-registration-bot:hyteck.de](https://matrix.to/#/#matrix-registration-bot:hyteck.de).
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---
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# matrix-registration-bot creates and manages registration tokens for a matrix server
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# See: https://github.com/moan0s/matrix-registration-bot
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matrix_bot_matrix_registration_bot_enabled: true
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matrix_bot_matrix_registration_bot_container_image_self_build: false
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matrix_bot_matrix_registration_bot_docker_repo: "https://github.com/moan0s/matrix-registration-bot.git"
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matrix_bot_matrix_registration_bot_docker_src_files_path: "{{ matrix_bot_matrix_registration_bot_base_path }}/docker-src"
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matrix_bot_matrix_registration_bot_version: latest
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matrix_bot_matrix_registration_bot_docker_image: "{{ matrix_container_global_registry_prefix }}moanos/matrix-registration-bot:{{ matrix_bot_matrix_registration_bot_version }}"
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matrix_bot_matrix_registration_bot_docker_image_force_pull: "{{ matrix_bot_matrix_registration_bot_docker_image.endswith(':latest') }}"
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matrix_bot_matrix_registration_bot_base_path: "{{ matrix_base_data_path }}/matrix-registration-bot"
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matrix_bot_matrix_registration_bot_config_path: "{{ matrix_bot_matrix_registration_bot_base_path }}/config"
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matrix_bot_matrix_registration_bot_data_path: "{{ matrix_bot_matrix_registration_bot_base_path }}/data"
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matrix_bot_matrix_registration_bot_bot_server: "https://{{ matrix_server_fqn_matrix }}"
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matrix_bot_matrix_registration_bot_api_base_url: "https://{{ matrix_server_fqn_matrix }}"
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# The access token that the bot uses to communicate in Matrix chats
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# This does not necessarily need to be a privileged (admin) access token.
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matrix_bot_matrix_registration_bot_bot_access_token: ''
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# The access token that the bot uses to call the Matrix API for creating registration tokens.
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# This needs to be a privileged (admin) access token.
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# By default, we assume `matrix_bot_matrix_registration_bot_bot_access_token` is such a privileged token and we use it as is.
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# If necessary, you can define your own other access token here, which might even be for a different Matrix user.
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matrix_bot_matrix_registration_bot_api_token: "{{ matrix_bot_matrix_registration_bot_bot_access_token }}"
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matrix_bot_matrix_registration_bot_logging_level: info
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matrix_bot_matrix_registration_environment_variables_extension: ''
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# A list of extra arguments to pass to the container
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matrix_bot_matrix_registration_bot_container_extra_arguments: []
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# List of systemd services that matrix-bot-matrix-registration-bot.service depends on
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matrix_bot_matrix_registration_bot_systemd_required_services_list: ['docker.service']
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# List of systemd services that matrix-bot-matrix-registration-bot.service wants
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matrix_bot_matrix_registration_bot_systemd_wanted_services_list: []
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# The bot's username. This user needs to be created manually beforehand.
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# Also see `matrix_bot_matrix_registration_bot_user_password`.
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matrix_bot_matrix_registration_bot_matrix_user_id_localpart: "bot.matrix-registration-bot"
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matrix_bot_matrix_registration_bot_matrix_user_id: '@{{ matrix_bot_matrix_registration_bot_matrix_user_id_localpart }}:{{ matrix_domain }}'
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matrix_bot_matrix_registration_bot_matrix_homeserver_url: "{{ matrix_homeserver_container_url }}"
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---
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- set_fact:
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matrix_systemd_services_list: "{{ matrix_systemd_services_list + ['matrix-bot-matrix-registration-bot.service'] }}"
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when: matrix_bot_matrix_registration_bot_enabled|bool
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---
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- import_tasks: "{{ role_path }}/tasks/init.yml"
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tags:
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- always
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- import_tasks: "{{ role_path }}/tasks/validate_config.yml"
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when: "run_setup|bool and matrix_bot_matrix_registration_bot_enabled|bool"
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tags:
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- setup-all
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- setup-bot-matrix-registration-bot
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- import_tasks: "{{ role_path }}/tasks/setup_install.yml"
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when: "run_setup|bool and matrix_bot_matrix_registration_bot_enabled|bool"
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tags:
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- setup-all
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- setup-bot-matrix-registration-bot
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- import_tasks: "{{ role_path }}/tasks/setup_uninstall.yml"
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when: "run_setup|bool and not matrix_bot_matrix_registration_bot_enabled|bool"
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tags:
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- setup-all
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- setup-bot-matrix-registration-bot
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---
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- name: Ensure matrix-registration-bot paths exist
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file:
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path: "{{ item.path }}"
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state: directory
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mode: 0750
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owner: "{{ matrix_user_username }}"
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group: "{{ matrix_user_groupname }}"
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with_items:
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- {path: "{{ matrix_bot_matrix_registration_bot_config_path }}", when: true}
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- - {path: "{{ matrix_bot_matrix_registration_bot_data_path }}", when: true}
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- {path: "{{ matrix_bot_matrix_registration_bot_docker_src_files_path }}", when: true}
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when: "item.when|bool"
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- name: Ensure matrix-registration-bot configuration file created
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template:
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src: "{{ role_path }}/templates/config/config.yml.j2"
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dest: "{{ matrix_bot_matrix_registration_bot_config_path }}/config.yml"
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owner: "{{ matrix_user_username }}"
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group: "{{ matrix_user_groupname }}"
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mode: 0640
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- name: Ensure matrix-registration-bot image is pulled
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docker_image:
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name: "{{ matrix_bot_matrix_registration_bot_docker_image }}"
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source: "{{ 'pull' if ansible_version.major > 2 or ansible_version.minor > 7 else omit }}"
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force_source: "{{ matrix_bot_matrix_registration_bot_docker_image_force_pull if ansible_version.major > 2 or ansible_version.minor >= 8 else omit }}"
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force: "{{ omit if ansible_version.major > 2 or ansible_version.minor >= 8 else matrix_bot_matrix_registration_bot_docker_image_force_pull }}"
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when: "not matrix_bot_matrix_registration_bot_container_image_self_build|bool"
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register: result
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retries: "{{ matrix_container_retries_count }}"
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delay: "{{ matrix_container_retries_delay }}"
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until: result is not failed
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- name: Ensure matrix-registration-bot repository is present on self-build
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git:
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repo: "{{ matrix_bot_matrix_registration_bot_docker_repo }}"
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dest: "{{ matrix_bot_matrix_registration_bot_docker_src_files_path }}"
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force: "yes"
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become: true
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become_user: "{{ matrix_user_username }}"
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register: matrix_bot_matrix_registration_bot_git_pull_results
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when: "matrix_bot_matrix_registration_bot_container_image_self_build|bool"
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- name: Ensure matrix-registration-bot image is built
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docker_image:
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name: "{{ matrix_bot_matrix_registration_bot_docker_image }}"
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source: build
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force_source: "{{ matrix_bot_matrix_registration_bot_git_pull_results.changed if ansible_version.major > 2 or ansible_version.minor >= 8 else omit }}"
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force: "{{ omit if ansible_version.major > 2 or ansible_version.minor >= 8 else matrix_mailer_git_pull_results.changed }}"
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build:
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dockerfile: Dockerfile
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path: "{{ matrix_bot_matrix_registration_bot_docker_src_files_path }}"
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pull: true
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when: "matrix_bot_matrix_registration_bot_container_image_self_build|bool"
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- name: Ensure matrix-bot-matrix-registration-bot.service installed
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template:
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src: "{{ role_path }}/templates/systemd/matrix-bot-matrix-registration-bot.service.j2"
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dest: "{{ matrix_systemd_path }}/matrix-bot-matrix-registration-bot.service"
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mode: 0644
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register: matrix_bot_matrix_registration_bot_systemd_service_result
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- name: Ensure systemd reloaded after matrix-bot-matrix-registration-bot.service installation
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service:
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daemon_reload: true
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when: "matrix_bot_matrix_registration_bot_systemd_service_result.changed|bool"
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- name: Ensure matrix-bot-matrix-registration-bot.service restarted, if necessary
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service:
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name: "matrix-bot-matrix-registration-bot.service"
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state: restarted
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---
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- name: Check existence of matrix-matrix-registration-bot service
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stat:
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path: "{{ matrix_systemd_path }}/matrix-bot-matrix-registration-bot.service"
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register: matrix_bot_matrix_registration_bot_service_stat
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- name: Ensure matrix-matrix-registration-bot is stopped
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service:
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name: matrix-bot-matrix-registration-bot
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state: stopped
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enabled: false
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daemon_reload: true
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register: stopping_result
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when: "matrix_bot_matrix_registration_bot_service_stat.stat.exists|bool"
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- name: Ensure matrix-bot-matrix-registration-bot.service doesn't exist
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file:
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path: "{{ matrix_systemd_path }}/matrix-bot-matrix-registration-bot.service"
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state: absent
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when: "matrix_bot_matrix_registration_bot_service_stat.stat.exists|bool"
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- name: Ensure systemd reloaded after matrix-bot-matrix-registration-bot.service removal
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service:
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daemon_reload: true
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when: "matrix_bot_matrix_registration_bot_service_stat.stat.exists|bool"
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- name: Ensure Matrix matrix-registration-bot paths don't exist
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file:
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path: "{{ matrix_bot_matrix_registration_bot_base_path }}"
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state: absent
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- name: Ensure matrix-registration-bot Docker image doesn't exist
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docker_image:
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name: "{{ matrix_bot_matrix_registration_bot_docker_image }}"
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state: absent
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---
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- name: Fail if required settings not defined
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fail:
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msg: >-
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You need to define a required configuration setting (`{{ item }}`).
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when: "vars[item] == ''"
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with_items:
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- "matrix_bot_matrix_registration_bot_bot_access_token"
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- "matrix_bot_matrix_registration_bot_api_token"
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bot:
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server: {{ matrix_bot_matrix_registration_bot_bot_server|to_json }}
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username: {{ matrix_bot_matrix_registration_bot_matrix_user_id_localpart|to_json }}
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access_token: {{ matrix_bot_matrix_registration_bot_bot_access_token|to_json }}
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api:
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# API endpoint of the registration tokens
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base_url: {{ matrix_bot_matrix_registration_bot_api_base_url|to_json }}
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# Access token of an administrator on the server
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token: {{ matrix_bot_matrix_registration_bot_api_token|to_json }}
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logging:
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level: {{ matrix_bot_matrix_registration_bot_logging_level|to_json }}
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#jinja2: lstrip_blocks: "True"
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[Unit]
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Description=Matrix registration bot
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{% for service in matrix_bot_matrix_registration_bot_systemd_required_services_list %}
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Requires={{ service }}
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After={{ service }}
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{% endfor %}
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{% for service in matrix_bot_matrix_registration_bot_systemd_wanted_services_list %}
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Wants={{ service }}
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{% endfor %}
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DefaultDependencies=no
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[Service]
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Type=simple
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Environment="HOME={{ matrix_systemd_unit_home_path }}"
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ExecStartPre=-{{ matrix_host_command_sh }} -c '{{ matrix_host_command_docker }} kill matrix-bot-matrix-registration-bot 2>/dev/null || true'
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ExecStartPre=-{{ matrix_host_command_sh }} -c '{{ matrix_host_command_docker }} rm matrix-bot-matrix-registration-bot 2>/dev/null || true'
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ExecStart={{ matrix_host_command_docker }} run --rm --name matrix-bot-matrix-registration-bot \
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--log-driver=none \
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--cap-drop=ALL \
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-e "CONFIG_PATH=/config/config.yml" \
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--user={{ matrix_user_uid }}:{{ matrix_user_gid }} \
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--read-only \
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--mount type=bind,src={{ matrix_bot_matrix_registration_bot_config_path }},dst=/config,ro \
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--mount type=bind,src={{ matrix_bot_matrix_registration_bot_data_path }},dst=/data \
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--network={{ matrix_docker_network }} \
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--env-file={{ matrix_bot_matrix_registration_bot_config_path }}/env \
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{{ matrix_bot_matrix_registration_bot_docker_image }}
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ExecStop=-{{ matrix_host_command_sh }} -c '{{ matrix_host_command_docker }} kill matrix-bot-matrix-registration-bot 2>/dev/null || true'
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ExecStop=-{{ matrix_host_command_sh }} -c '{{ matrix_host_command_docker }} rm matrix-bot-matrix-registration-bot 2>/dev/null || true'
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Restart=always
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RestartSec=30
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SyslogIdentifier=matrix-bot-matrix-registration-bot
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[Install]
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WantedBy=multi-user.target
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