matrix-docker-ansible-deploy/roles/matrix-server/tasks/upgrade_postgres.yml

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---
- 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('') == ''"
- set_fact:
postgres_auto_upgrade_backup_data_path: "{{ matrix_postgres_data_path }}-auto-upgrade-backup"
when: "postgres_auto_upgrade_backup_data_path|default('') == ''"
- name: Fail, if trying to upgrade external Postgres database
fail:
msg: "Your configuration indicates that you're using an external Postgres database. Refusing to try and upgrade that."
when: "matrix_postgres_use_external"
- 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"
- name: Determine existing Postgres version (check PG_VERSION file)
stat:
path: "{{ matrix_postgres_data_path }}/PG_VERSION"
register: result_pg_version_stat
- name: Abort, if no existing Postgres version detected
fail: msg="Could not find existing Postgres installation"
when: "not result_pg_version_stat.stat.exists"
- name: Determine existing Postgres version (read PG_VERSION file)
slurp:
src: "{{ matrix_postgres_data_path }}/PG_VERSION"
register: result_pg_version
- name: Determine existing Postgres version (default to empty)
set_fact:
pg_version: ""
- name: Determine existing Postgres version (make sense of PG_VERSION file)
set_fact:
pg_version: "{{ result_pg_version['content']|b64decode|replace('\n', '') }}"
- name: Determine Postgres version to use (default to latest)
set_fact:
matrix_postgres_docker_image_to_use: "{{ matrix_postgres_docker_image_latest }}"
- name: Determine Postgres version to use (use 9.x, if detected)
set_fact:
matrix_postgres_docker_image_to_use: "{{ matrix_postgres_docker_image_v9 }}"
when: "pg_version.startswith('9.')"
- name: Abort, if already at latest Postgres version
fail: msg="You are already running the latest Postgres version supported. Nothing to do"
when: "matrix_postgres_docker_image_to_use == 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: 5
delegate_to: 127.0.0.1
become: false
- name: Perform Postgres database dump
command: |
/usr/bin/docker run --rm --name matrix-postgres-dump \
--network={{ matrix_docker_network }} \
--env-file={{ matrix_environment_variables_data_path }}/env-postgres-pgsql-docker \
-v {{ postgres_dump_dir }}:/out \
{{ matrix_postgres_docker_image_to_use }} 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."
- include: tasks/setup/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: 5
delegate_to: 127.0.0.1
become: false
- name: Perform Postgres database import
command: |
/usr/bin/docker run --rm --name matrix-postgres-import \
--network={{ matrix_docker_network }} \
--env-file={{ matrix_environment_variables_data_path }}/env-postgres-pgsql-docker \
-v {{ postgres_dump_dir }}:/in:ro \
{{ matrix_postgres_docker_image_latest }} psql -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."