Michael-GMH
4 years ago
parent
f41bfb69d2
commit
89cb5a3d7a
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# Setting up postgres backup (optional)
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The playbook can install and configure [docker-postgres-backup-local](https://github.com/prodrigestivill/docker-postgres-backup-local) for you.
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## Adjusting the playbook configuration
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Minimal working configuration (`inventory/host_vars/matrix.DOMAIN/vars.yml`) to enable Postgres backup:
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```yaml
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matrix_postgres_backup_enabled: true
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```
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Refer to the table below for additional configuration variables and their default values.
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| Name | Default value | Description |
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| :-------------------------------- | :--------------------------- | :--------------------------------------------------------------- |
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|`matrix_postgres_backup_enabled`|`false`|Set to true to use [docker-postgres-backup-local](https://github.com/prodrigestivill/docker-postgres-backup-local) to create automatic database backups|
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|`matrix_postgres_backup_schedule`| `'@daily'` |Cron-schedule specifying the interval between postgres backups.|
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|`matrix_postgres_backup_keep_days`|`7`|Number of daily backups to keep|
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|`matrix_postgres_backup_keep_weeks`|`4`|Number of weekly backups to keep|
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|`matrix_postgres_backup_keep_months`|`12`|Number of monthly backups to keep|
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|`matrix_postgres_backup_path` | `"{{ matrix_base_data_path }}/postgres-backup"` | Storagepath for the database backups|
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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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- name: Collect epoche time from date
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shell: |
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date -d '{{ item }}' +"%s"
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register: epoche_time
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- name: Purge local media to specific date
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shell: |
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curl -X POST --header "Authorization: Bearer {{ janitors_token.stdout }}" 'https://matrix.{{ matrix_domain }}/_synapse/admin/v1/media/matrix.{{ matrix_domain }}/delete?before_ts={{ epoche_time.stdout }}'
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- name: Pause for 5 seconds to let Synapse breathe
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pause:
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seconds: 5
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- name: Ensure dateutils and curl is installed in AWX
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delegate_to: 127.0.0.1
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yum:
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name: dateutils
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state: latest
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- name: Include vars in matrix_vars.yml
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include_vars:
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file: '/var/lib/awx/projects/clients/{{ member_id }}/{{ subscription_id }}/matrix_vars.yml'
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no_log: True
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- name: Ensure curl and jq intalled on target machine
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apt:
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pkg:
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- curl
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- jq
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state: present
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- name: Collect access token for janitor user
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shell: |
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curl -XPOST -d '{"type":"m.login.password", "user":"janitor", "password":"{{ matrix_awx_janitor_user_password }}"}' "https://matrix.{{ matrix_domain }}/_matrix/client/r0/login" | jq '.access_token'
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register: janitors_token
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- name: Generate list of dates to purge to
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delegate_to: 127.0.0.1
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shell: "dateseq {{ matrix_purge_from_date }} {{ matrix_purge_to_date }}"
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register: purge_dates
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- name: Calculate initial size of local media repository
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shell: du -sh /matrix/synapse/storage/media-store/local*
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register: local_media_size_before
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when: matrix_purge_media_type == "Local Media"
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ignore_errors: yes
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no_log: True
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- name: Calculate initial size of remote media repository
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shell: du -sh /matrix/synapse/storage/media-store/remote*
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register: remote_media_size_before
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when: matrix_purge_media_type == "Remote Media"
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ignore_errors: yes
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no_log: True
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- name: Purge local media with loop
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include_tasks: purge_media_local.yml
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loop: "{{ purge_dates.stdout_lines | flatten(levels=1) }}"
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when: matrix_purge_media_type == "Local Media"
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- name: Purge remote media with loop
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include_tasks: purge_media_remote.yml
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loop: "{{ purge_dates.stdout_lines | flatten(levels=1) }}"
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when: matrix_purge_media_type == "Remote Media"
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- name: Calculate final size of local media repository
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shell: du -sh /matrix/synapse/storage/media-store/local*
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register: local_media_size_after
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when: matrix_purge_media_type == "Local Media"
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ignore_errors: yes
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no_log: True
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- name: Calculate final size of remote media repository
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shell: du -sh /matrix/synapse/storage/media-store/remote*
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register: remote_media_size_after
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when: matrix_purge_media_type == "Remote Media"
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ignore_errors: yes
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no_log: True
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- name: Print size of local media repository before purge
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debug:
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msg: "{{ local_media_size_before.stdout.split('\n') }}"
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when: matrix_purge_media_type == "Local Media"
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- name: Print size of local media repository after purge
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debug:
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msg: "{{ local_media_size_after.stdout.split('\n') }}"
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when: matrix_purge_media_type == "Local Media"
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- name: Print size of remote media repository before purge
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debug:
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msg: "{{ remote_media_size_before.stdout.split('\n') }}"
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when: matrix_purge_media_type == "Remote Media"
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- name: Print size of remote media repository after purge
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debug:
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msg: "{{ remote_media_size_after.stdout.split('\n') }}"
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when: matrix_purge_media_type == "Remote Media"
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- name: Set boolean value to exit playbook
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set_fact:
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end_playbook: true
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- name: End playbook early if this task is called.
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meta: end_play
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when: end_playbook is defined and end_playbook|bool
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- name: Collect epoche time from date
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shell: |
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date -d '{{ item }}' +"%s"
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register: epoche_time
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- name: Purge local media to specific date
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shell: |
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curl -X POST --header "Authorization: Bearer {{ janitors_token.stdout }}" 'https://matrix.{{ matrix_domain }}/_synapse/admin/v1/purge_media_cache?before_ts={{ epoche_time.stdout }}'
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- name: Pause for 5 seconds to let Synapse breathe
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pause:
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seconds: 5
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matrix_postgres_backup_enabled: false
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matrix_postgres_backup_connection_hostname: "matrix-postgres"
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matrix_postgres_backup_connection_port: 5432
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matrix_postgres_backup_connection_username: "matrix"
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matrix_postgres_backup_connection_password: ""
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matrix_postgres_backup_extra_opts: "-Z9 --schema=public --blobs"
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matrix_postgres_backup_schedule: "@daily"
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matrix_postgres_backup_keep_days: 7
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matrix_postgres_backup_keep_weeks: 4
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matrix_postgres_backup_keep_months: 12
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matrix_postgres_backup_healthcheck_port: "8080"
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matrix_postgres_backup_databases: []
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matrix_postgres_backup_path: "{{ matrix_base_data_path }}/postgres-backup"
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# Specifies where the Postgres data is.
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# We use this to autodetect the Postgres version during playbook runtime (by parsing the `PG_VERSION` file contained there).
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# You can leave this empty to prevent auto-detection.
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matrix_postgres_backup_postgres_data_path: ""
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matrix_postgres_backup_architecture: amd64
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# matrix_postgres_docker_image_suffix controls whether we use Alpine-based images (`-alpine`) or the normal Debian-based images.
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# Alpine-based Postgres images are smaller and we usually prefer them, but they don't work on ARM32 (tested on a Raspberry Pi 3 running Raspbian 10.7).
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# On ARM32, `-alpine` images fail with the following error:
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# > LOG: startup process (PID 37) was terminated by signal 11: Segmentation fault
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matrix_postgres_backup_docker_image_suffix: "{{ '-alpine' if matrix_postgres_backup_architecture in ['amd64', 'arm64'] else '' }}"
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matrix_postgres_backup_docker_image_v9: "{{ matrix_container_global_registry_prefix }}prodrigestivill/postgres-backup-local:9.6{{ matrix_postgres_backup_docker_image_suffix }}"
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matrix_postgres_backup_docker_image_v10: "{{ matrix_container_global_registry_prefix }}prodrigestivill/postgres-backup-local:10{{ matrix_postgres_backup_docker_image_suffix }}"
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matrix_postgres_backup_docker_image_v11: "{{ matrix_container_global_registry_prefix }}prodrigestivill/postgres-backup-local:11{{ matrix_postgres_backup_docker_image_suffix }}"
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matrix_postgres_backup_docker_image_v12: "{{ matrix_container_global_registry_prefix }}prodrigestivill/postgres-backup-local:12{{ matrix_postgres_backup_docker_image_suffix }}"
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matrix_postgres_backup_docker_image_v13: "{{ matrix_container_global_registry_prefix }}prodrigestivill/postgres-backup-local:13{{ matrix_postgres_backup_docker_image_suffix }}"
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matrix_postgres_backup_docker_image_latest: "{{ matrix_postgres_backup_docker_image_v13 }}"
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# This variable is assigned at runtime. Overriding its value has no effect.
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matrix_postgres_backup_docker_image_to_use: '{{ matrix_postgres_backup_docker_image_latest }}'
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matrix_postgres_backup_docker_image_force_pull: "{{ matrix_postgres_backup_docker_image_to_use.endswith(':latest') }}"
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- set_fact:
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matrix_systemd_services_list: "{{ matrix_systemd_services_list + ['matrix-postgres-backup.service'] }}"
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when: matrix_postgres_backup_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_postgres_backup_enabled|bool"
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tags:
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- setup-all
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- setup-postgres-backup
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- import_tasks: "{{ role_path }}/tasks/setup_postgres_backup.yml"
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when: run_setup|bool
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tags:
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- setup-all
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- setup-postgres-backup
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---
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#
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# Tasks related to setting up an internal postgres server
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#
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- import_tasks: "{{ role_path }}/tasks/util/detect_existing_postgres_version.yml"
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when: 'matrix_postgres_backup_enabled|bool and matrix_postgres_backup_postgres_data_path != ""'
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# If we have found an existing version (installed from before), we use its corresponding Docker image.
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# If not, we install using the latest Postgres.
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#
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# Upgrading is supposed to be performed separately and explicitly (see `upgrade_postgres.yml`).
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- set_fact:
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matrix_postgres_backup_docker_image_to_use: "{{ matrix_postgres_backup_docker_image_latest if matrix_postgres_backup_detected_version_corresponding_docker_image|default('') == '' else matrix_postgres_backup_detected_version_corresponding_docker_image }}"
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when: matrix_postgres_backup_enabled|bool
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- name: Ensure postgres backup Docker image is pulled
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docker_image:
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name: "{{ matrix_postgres_backup_docker_image_to_use }}"
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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_postgres_backup_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_postgres_backup_docker_image_force_pull }}"
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when: matrix_postgres_backup_enabled|bool
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- name: Ensure Postgres backup paths exist
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file:
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path: "{{ item }}"
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state: directory
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mode: 0700
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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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- "{{ matrix_postgres_backup_path }}"
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when: matrix_postgres_backup_enabled|bool
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- name: Ensure Postgres environment variables file created
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template:
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src: "{{ role_path }}/templates/{{ item }}.j2"
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dest: "{{ matrix_postgres_backup_path }}/{{ item }}"
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mode: 0640
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with_items:
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- "env-postgres-backup"
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when: matrix_postgres_backup_enabled|bool
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- name: Ensure matrix-postgres-backup.service installed
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template:
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src: "{{ role_path }}/templates/systemd/matrix-postgres-backup.service.j2"
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dest: "{{ matrix_systemd_path }}/matrix-postgres-backup.service"
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mode: 0644
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register: matrix_postgres_backup_systemd_service_result
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when: matrix_postgres_backup_enabled|bool
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- name: Ensure systemd reloaded after matrix-postgres-backup.service installation
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service:
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daemon_reload: yes
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when: "matrix_postgres_backup_enabled|bool and matrix_postgres_backup_systemd_service_result.changed"
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#
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# Tasks related to getting rid of the internal postgres backup server (if it was previously enabled)
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#
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- name: Check existence of matrix-postgres-backup service
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stat:
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path: "{{ matrix_systemd_path }}/matrix-postgres-backup.service"
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register: matrix_postgres_backup_service_stat
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when: "not matrix_postgres_backup_enabled|bool"
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- name: Ensure matrix-postgres-backup is stopped
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service:
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name: matrix-postgres-backup
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state: stopped
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daemon_reload: yes
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when: "not matrix_postgres_backup_enabled|bool and matrix_postgres_backup_service_stat.stat.exists"
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- name: Ensure matrix-postgres-backup.service doesn't exist
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file:
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path: "{{ matrix_systemd_path }}/matrix-postgres-backup.service"
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state: absent
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when: "not matrix_postgres_backup_enabled|bool and matrix_postgres_backup_service_stat.stat.exists"
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- name: Ensure systemd reloaded after matrix-postgres-backup.service removal
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service:
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daemon_reload: yes
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when: "not matrix_postgres_backup_enabled|bool and matrix_postgres_backup_service_stat.stat.exists"
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- name: Check existence of matrix-postgres-backup backup path
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stat:
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path: "{{ matrix_postgres_backup_path }}"
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register: matrix_postgres_backup_path_stat
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when: "not matrix_postgres_backup_enabled|bool"
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# We just want to notify the user. Deleting data is too destructive.
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- name: Inject warning if matrix-postgres backup data remains
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set_fact:
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matrix_playbook_runtime_results: |
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{{
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matrix_playbook_runtime_results|default([])
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+
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[
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"NOTE: You are not using the local backup service to backup the PostgreSQL database, but some old data remains from before in `{{ matrix_postgres_backup_path }}`. Feel free to delete it."
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]
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}}
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when: "not matrix_postgres_backup_enabled|bool and matrix_postgres_backup_path_stat.stat.exists"
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---
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# This utility aims to determine if there is some existing Postgres version in use or not.
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# If there is, it also tries to detect the Docker image that corresponds to that version.
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- name: Initialize Postgres version determination variables (default to empty)
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set_fact:
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matrix_postgres_backup_detection_pg_version_path: "{{ matrix_postgres_data_path }}/PG_VERSION"
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matrix_postgres_backup_detected_existing: false
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matrix_postgres_backup_detected_version: ""
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matrix_postgres_backup_detected_version_corresponding_docker_image: ""
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- name: Determine existing Postgres version (check PG_VERSION file)
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stat:
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||||||
|
path: "{{ matrix_postgres_backup_detection_pg_version_path }}"
|
||||||
|
register: result_pg_version_stat
|
||||||
|
|
||||||
|
- set_fact:
|
||||||
|
matrix_postgres_backup_detected_existing: true
|
||||||
|
when: "result_pg_version_stat.stat.exists"
|
||||||
|
|
||||||
|
- name: Determine existing Postgres version (read PG_VERSION file)
|
||||||
|
slurp:
|
||||||
|
src: "{{ matrix_postgres_backup_detection_pg_version_path }}"
|
||||||
|
register: result_pg_version
|
||||||
|
when: matrix_postgres_backup_detected_existing|bool
|
||||||
|
|
||||||
|
- name: Determine existing Postgres version (make sense of PG_VERSION file)
|
||||||
|
set_fact:
|
||||||
|
matrix_postgres_backup_detected_version: "{{ result_pg_version['content']|b64decode|replace('\n', '') }}"
|
||||||
|
when: matrix_postgres_backup_detected_existing|bool
|
||||||
|
|
||||||
|
- name: Determine corresponding Docker image to detected version (assume default of latest)
|
||||||
|
set_fact:
|
||||||
|
matrix_postgres_backup_detected_version_corresponding_docker_image: "{{ matrix_postgres_backup_docker_image_latest }}"
|
||||||
|
when: "matrix_postgres_backup_detected_version != ''"
|
||||||
|
|
||||||
|
- name: Determine corresponding Docker image to detected version (use 9.x, if detected)
|
||||||
|
set_fact:
|
||||||
|
matrix_postgres_backup_detected_version_corresponding_docker_image: "{{ matrix_postgres_backup_docker_image_v9 }}"
|
||||||
|
when: "matrix_postgres_backup_detected_version.startswith('9.')"
|
||||||
|
|
||||||
|
- name: Determine corresponding Docker image to detected version (use 10.x, if detected)
|
||||||
|
set_fact:
|
||||||
|
matrix_postgres_backup_detected_version_corresponding_docker_image: "{{ matrix_postgres_backup_docker_image_v10 }}"
|
||||||
|
when: "matrix_postgres_backup_detected_version == '10' or matrix_postgres_backup_detected_version.startswith('10.')"
|
||||||
|
|
||||||
|
- name: Determine corresponding Docker image to detected version (use 11.x, if detected)
|
||||||
|
set_fact:
|
||||||
|
matrix_postgres_backup_detected_version_corresponding_docker_image: "{{ matrix_postgres_backup_docker_image_v11 }}"
|
||||||
|
when: "matrix_postgres_backup_detected_version == '11' or matrix_postgres_backup_detected_version.startswith('11.')"
|
||||||
|
|
||||||
|
- name: Determine corresponding Docker image to detected version (use 12.x, if detected)
|
||||||
|
set_fact:
|
||||||
|
matrix_postgres_backup_detected_version_corresponding_docker_image: "{{ matrix_postgres_backup_docker_image_v12 }}"
|
||||||
|
when: "matrix_postgres_backup_detected_version == '12' or matrix_postgres_backup_detected_version.startswith('12.')"
|
||||||
@ -0,0 +1,18 @@
|
|||||||
|
---
|
||||||
|
|
||||||
|
- name: Fail if required Postgres settings not defined
|
||||||
|
fail:
|
||||||
|
msg: >-
|
||||||
|
You need to define a required configuration setting (`{{ item }}`).
|
||||||
|
when: "vars[item] == ''"
|
||||||
|
with_items:
|
||||||
|
- "matrix_postgres_backup_connection_hostname"
|
||||||
|
- "matrix_postgres_backup_connection_username"
|
||||||
|
- "matrix_postgres_backup_connection_password"
|
||||||
|
- "matrix_postgres_backup_connection_port"
|
||||||
|
- "matrix_postgres_backup_schedule"
|
||||||
|
- "matrix_postgres_backup_keep_days"
|
||||||
|
- "matrix_postgres_backup_keep_weeks"
|
||||||
|
- "matrix_postgres_backup_keep_months"
|
||||||
|
- "matrix_postgres_backup_path"
|
||||||
|
- "matrix_postgres_backup_databases"
|
||||||
@ -0,0 +1,12 @@
|
|||||||
|
#jinja2: lstrip_blocks: "True"
|
||||||
|
POSTGRES_USER={{ matrix_postgres_backup_connection_username }}
|
||||||
|
POSTGRES_PASSWORD={{ matrix_postgres_backup_connection_password }}
|
||||||
|
POSTGRES_HOST={{ matrix_postgres_backup_connection_hostname }}
|
||||||
|
POSTGRES_DB={{ matrix_postgres_backup_databases|join(', ') }}
|
||||||
|
POSTGRES_EXTRA_OPTS={{ matrix_postgres_backup_extra_opts }}
|
||||||
|
SCHEDULE={{ matrix_postgres_backup_schedule }}
|
||||||
|
BACKUP_KEEP_DAYS={{ matrix_postgres_backup_keep_days }}
|
||||||
|
BACKUP_KEEP_WEEKS={{ matrix_postgres_backup_keep_weeks }}
|
||||||
|
BACKUP_KEEP_MONTHS={{ matrix_postgres_backup_keep_months }}
|
||||||
|
HEALTHCHECK_PORT={{ matrix_postgres_backup_healthcheck_port }}
|
||||||
|
POSTGRES_PORT={{ matrix_postgres_backup_connection_port }}
|
||||||
@ -0,0 +1,31 @@
|
|||||||
|
#jinja2: lstrip_blocks: "True"
|
||||||
|
[Unit]
|
||||||
|
Description=Automatic Backup of Matrix Postgres server
|
||||||
|
After=docker.service
|
||||||
|
Requires=docker.service
|
||||||
|
DefaultDependencies=no
|
||||||
|
|
||||||
|
[Service]
|
||||||
|
Type=simple
|
||||||
|
Environment="HOME={{ matrix_systemd_unit_home_path }}"
|
||||||
|
ExecStartPre=-{{ matrix_host_command_docker }} stop matrix-postgres-backup
|
||||||
|
ExecStartPre=-{{ matrix_host_command_sh }} -c '{{ matrix_host_command_docker }} rm matrix-postgres-backup 2>/dev/null'
|
||||||
|
|
||||||
|
ExecStart={{ matrix_host_command_docker }} run --rm --name matrix-postgres-backup \
|
||||||
|
--log-driver=none \
|
||||||
|
--user={{ matrix_user_uid }}:{{ matrix_user_gid }} \
|
||||||
|
--cap-drop=ALL \
|
||||||
|
--read-only \
|
||||||
|
--network={{ matrix_docker_network }} \
|
||||||
|
--env-file={{ matrix_postgres_backup_path }}/env-postgres-backup \
|
||||||
|
--mount type=bind,src={{ matrix_postgres_backup_path }},dst=/backups \
|
||||||
|
{{ matrix_postgres_backup_docker_image_to_use }}
|
||||||
|
|
||||||
|
ExecStop=-{{ matrix_host_command_docker }} stop matrix-postgres-backup
|
||||||
|
ExecStop=-{{ matrix_host_command_sh }} -c '{{ matrix_host_command_docker }} rm matrix-postgres-backup 2>/dev/null'
|
||||||
|
Restart=always
|
||||||
|
RestartSec=30
|
||||||
|
SyslogIdentifier=matrix-postgres-backup
|
||||||
|
|
||||||
|
[Install]
|
||||||
|
WantedBy=multi-user.target
|
||||||
Loading…
Reference in new issue