--- # Pre-checks - name: Fail if Postgres not enabled ansible.builtin.fail: msg: "Postgres via the matrix-postgres role is not enabled (`matrix_postgres_enabled`). Cannot run vacuum." when: "not matrix_postgres_enabled | bool" # Defaults - name: Set postgres_start_wait_time, if not provided ansible.builtin.set_fact: postgres_start_wait_time: 15 when: "postgres_start_wait_time | default('') == ''" - name: Set postgres_vacuum_wait_time, if not provided ansible.builtin.set_fact: postgres_vacuum_wait_time: "{{ 7 * 86400 }}" when: "postgres_vacuum_wait_time | default('') == ''" # Actual vacuuming work - name: Ensure matrix-postgres is started ansible.builtin.service: name: matrix-postgres state: started daemon_reload: true - name: Wait a bit, so that Postgres can start ansible.builtin.wait_for: timeout: "{{ postgres_start_wait_time }}" delegate_to: 127.0.0.1 become: false - ansible.builtin.import_tasks: tasks/detect_existing_postgres_version.yml - name: Abort, if no existing Postgres version detected ansible.builtin.fail: msg: "Could not find existing Postgres installation" when: "not matrix_postgres_detected_existing | bool" - name: Generate Postgres database vacuum command ansible.builtin.set_fact: matrix_postgres_vacuum_command: >- {{ matrix_host_command_docker }} run --rm --name matrix-postgres-synapse-vacuum --user={{ matrix_user_uid }}:{{ matrix_user_gid }} --cap-drop=ALL --network={{ matrix_docker_network }} --env-file={{ matrix_postgres_base_path }}/env-postgres-psql {{ matrix_postgres_docker_image_latest }} psql -v ON_ERROR_STOP=1 -h matrix-postgres {{ matrix_synapse_database_database }} -c 'VACUUM FULL VERBOSE' - name: Note about Postgres vacuum alternative ansible.builtin.debug: msg: >- Running vacuum with the following Postgres ansible.builtin.command: `{{ matrix_postgres_vacuum_command }}`. If this crashes, you can stop all processes (`systemctl stop matrix-*`), start Postgres only (`systemctl start matrix-postgres`) and manually run the above command directly on the server. - name: Populate service facts ansible.builtin.service_facts: - ansible.builtin.set_fact: matrix_postgres_synapse_was_running: "{{ ansible_facts.services['matrix-synapse.service'] | default(none) is not none and ansible_facts.services['matrix-synapse.service'].state == 'running' }}" - name: Ensure services are stopped ansible.builtin.service: name: "{{ item }}" state: stopped daemon_reload: true with_items: "{{ matrix_postgres_systemd_services_to_stop_for_maintenance_list }}" - name: Run Postgres vacuum command ansible.builtin.command: "{{ matrix_postgres_vacuum_command }}" async: "{{ postgres_vacuum_wait_time }}" poll: 10 register: matrix_postgres_synapse_vacuum_result failed_when: not matrix_postgres_synapse_vacuum_result.finished changed_when: matrix_postgres_synapse_vacuum_result.finished and matrix_postgres_synapse_vacuum_result.rc == 0 # Intentionally show the results - ansible.builtin.debug: var: "matrix_postgres_synapse_vacuum_result" - name: Ensure services are started ansible.builtin.service: name: "{{ item }}" state: started daemon_reload: true with_items: "{{ matrix_postgres_systemd_services_to_stop_for_maintenance_list }}"