matrix-docker-ansible-deploy/roles/matrix-postgres-backup/tasks/setup_postgres_backup.yml

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---
#
# Tasks related to setting up an internal postgres server
#
- import_tasks: "{{ role_path }}/tasks/util/detect_existing_postgres_version.yml"
when: 'matrix_postgres_backup_enabled|bool and matrix_postgres_backup_postgres_data_path != ""'
# If we have found an existing version (installed from before), we use its corresponding Docker image.
# If not, we install using the latest Postgres.
#
# Upgrading is supposed to be performed separately and explicitly (see `upgrade_postgres.yml`).
- set_fact:
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 }}"
when: matrix_postgres_backup_enabled|bool
- name: Ensure postgres backup Docker image is pulled
docker_image:
name: "{{ matrix_postgres_backup_docker_image_to_use }}"
source: "{{ 'pull' if ansible_version.major > 2 or ansible_version.minor > 7 else omit }}"
force_source: "{{ matrix_postgres_backup_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_postgres_backup_docker_image_force_pull }}"
when: matrix_postgres_backup_enabled|bool
register: result
retries: "{{ matrix_container_retries_count }}"
delay: "{{ matrix_container_retries_delay }}"
until: result is not failed
- name: Ensure Postgres backup paths exist
file:
path: "{{ item }}"
state: directory
mode: 0700
owner: "{{ matrix_user_username }}"
group: "{{ matrix_user_groupname }}"
with_items:
- "{{ matrix_postgres_backup_path }}"
when: matrix_postgres_backup_enabled|bool
- name: Ensure Postgres environment variables file created
template:
src: "{{ role_path }}/templates/{{ item }}.j2"
dest: "{{ matrix_postgres_backup_path }}/{{ item }}"
mode: 0640
with_items:
- "env-postgres-backup"
when: matrix_postgres_backup_enabled|bool
- name: Ensure matrix-postgres-backup.service installed
template:
src: "{{ role_path }}/templates/systemd/matrix-postgres-backup.service.j2"
dest: "{{ matrix_systemd_path }}/matrix-postgres-backup.service"
mode: 0644
register: matrix_postgres_backup_systemd_service_result
when: matrix_postgres_backup_enabled|bool
- name: Ensure systemd reloaded after matrix-postgres-backup.service installation
service:
daemon_reload: true
when: "matrix_postgres_backup_enabled|bool and matrix_postgres_backup_systemd_service_result.changed"
#
# Tasks related to getting rid of the internal postgres backup server (if it was previously enabled)
#
- name: Check existence of matrix-postgres-backup service
stat:
path: "{{ matrix_systemd_path }}/matrix-postgres-backup.service"
register: matrix_postgres_backup_service_stat
when: "not matrix_postgres_backup_enabled|bool"
- name: Ensure matrix-postgres-backup is stopped
service:
name: matrix-postgres-backup
state: stopped
enabled: false
daemon_reload: true
when: "not matrix_postgres_backup_enabled|bool and matrix_postgres_backup_service_stat.stat.exists"
- name: Ensure matrix-postgres-backup.service doesn't exist
file:
path: "{{ matrix_systemd_path }}/matrix-postgres-backup.service"
state: absent
when: "not matrix_postgres_backup_enabled|bool and matrix_postgres_backup_service_stat.stat.exists"
- name: Ensure systemd reloaded after matrix-postgres-backup.service removal
service:
daemon_reload: true
when: "not matrix_postgres_backup_enabled|bool and matrix_postgres_backup_service_stat.stat.exists"
- name: Check existence of matrix-postgres-backup backup path
stat:
path: "{{ matrix_postgres_backup_path }}"
register: matrix_postgres_backup_path_stat
when: "not matrix_postgres_backup_enabled|bool"
# We just want to notify the user. Deleting data is too destructive.
- name: Inject warning if matrix-postgres backup data remains
set_fact:
matrix_playbook_runtime_results: |
{{
matrix_playbook_runtime_results|default([])
+
[
"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."
]
}}
when: "not matrix_postgres_backup_enabled|bool and matrix_postgres_backup_path_stat.stat.exists"