matrix-docker-ansible-deploy/roles/matrix-postgres/tasks/upgrade_postgres.yml
2019-01-28 11:43:32 +02:00

128 lines
4.6 KiB
YAML

---
- name: Set default postgres_dump_dir, if not provided
set_fact:
postgres_dump_dir: "/tmp"
when: "postgres_dump_dir|default('') == ''"
- name: Set postgres_dump_name, if not provided
set_fact:
postgres_dump_name: "matrix-postgres.out"
when: "postgres_dump_name|default('') == ''"
- name: Set postgres_auto_upgrade_backup_data_path, if not provided
set_fact:
postgres_auto_upgrade_backup_data_path: "{{ matrix_postgres_data_path }}-auto-upgrade-backup"
when: "postgres_auto_upgrade_backup_data_path|default('') == ''"
- name: Set postgres_start_wait_time, if not provided
set_fact:
postgres_start_wait_time: 15
when: "postgres_start_wait_time|default('') == ''"
- name: Fail, if trying to upgrade external Postgres database
fail:
msg: "Your configuration indicates that you're not using Postgres from this role. There is nothing to upgrade."
when: "not matrix_postgres_enabled"
- name: Check Postgres auto-upgrade backup data directory
stat:
path: "{{ postgres_auto_upgrade_backup_data_path }}"
register: result_auto_upgrade_path
- name: Abort, if existing Postgres auto-upgrade data path detected
fail:
msg: "Detected that a left-over {{ postgres_auto_upgrade_backup_data_path }} exists. You should rename it to {{ matrix_postgres_data_path }} if the previous upgrade went wrong, or delete it if it went well."
when: "result_auto_upgrade_path.stat.exists"
- import_tasks: tasks/util/detect_existing_postgres_version.yml
- name: Abort, if no existing Postgres version detected
fail:
msg: "Could not find existing Postgres installation"
when: "not matrix_postgres_detected_existing"
- name: Abort, if already at latest Postgres version
fail:
msg: "You are already running the latest Postgres version supported ({{ matrix_postgres_docker_image_latest }}). Nothing to do"
when: "matrix_postgres_detected_version_corresponding_docker_image == matrix_postgres_docker_image_latest"
- debug:
msg: "Upgrading database from {{ matrix_postgres_detected_version_corresponding_docker_image }} to {{ matrix_postgres_docker_image_latest }}"
- name: Ensure matrix-synapse is stopped
service:
name: matrix-synapse
state: stopped
- name: Ensure matrix-postgres is started
service:
name: matrix-postgres
state: started
daemon_reload: yes
- name: Wait a bit, so that Postgres can start
wait_for:
timeout: "{{ postgres_start_wait_time }}"
delegate_to: 127.0.0.1
become: false
- name: Perform Postgres database dump
command: |
/usr/bin/docker run --rm --name matrix-postgres-dump \
--user={{ matrix_user_uid }}:{{ matrix_user_gid }} \
--network={{ matrix_docker_network }} \
--env-file={{ matrix_postgres_base_path }}/env-postgres-psql \
-v {{ postgres_dump_dir }}:/out \
{{ matrix_postgres_detected_version_corresponding_docker_image }} pg_dump -h matrix-postgres {{ matrix_postgres_db_name }} -f /out/{{ postgres_dump_name }}
- name: Ensure matrix-postgres is stopped
service:
name: matrix-postgres
state: stopped
- name: Rename existing Postgres data directory
command: "mv {{ matrix_postgres_data_path }} {{ postgres_auto_upgrade_backup_data_path }}"
- debug:
msg: "NOTE: Your Postgres data directory has been moved from `{{ matrix_postgres_data_path }}` to `{{ postgres_auto_upgrade_backup_data_path }}`. In the event of failure, you can move it back and run the playbook with --tags=setup-postgres to restore operation."
- import_tasks: tasks/setup_postgres.yml
- name: Ensure matrix-postgres autoruns and is restarted
service:
name: matrix-postgres
enabled: yes
state: restarted
daemon_reload: yes
- name: Wait a bit, so that Postgres can start
wait_for:
timeout: "{{ postgres_start_wait_time }}"
delegate_to: 127.0.0.1
become: false
- name: Perform Postgres database import
command: |
/usr/bin/docker run --rm --name matrix-postgres-import \
--user={{ matrix_user_uid }}:{{ matrix_user_gid }} \
--cap-drop=ALL \
--network={{ matrix_docker_network }} \
--env-file={{ matrix_postgres_base_path }}/env-postgres-psql \
-v {{ postgres_dump_dir }}:/in:ro \
{{ matrix_postgres_docker_image_latest }} psql -v ON_ERROR_STOP=1 -h matrix-postgres -f /in/{{ postgres_dump_name }}
- name: Delete Postgres database dump file
file:
path: "{{ postgres_dump_dir }}/{{ postgres_dump_name }}"
state: absent
- name: Ensure matrix-synapse is started
service:
name: matrix-synapse
state: started
daemon_reload: yes
- debug:
msg: "NOTE: Your old Postgres data directory is preserved at `{{ postgres_auto_upgrade_backup_data_path }}`. You might want to get rid of it once you've confirmed that all is well."