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matrix-docker-ansible-deploy/roles/matrix-postgres/tasks/import_postgres.yml

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---
# Pre-checks
- name: Fail if Postgres not enabled
fail:
msg: "Postgres via the matrix-postgres role is not enabled (`matrix_postgres_enabled`). Cannot import."
when: "not matrix_postgres_enabled"
- name: Fail if playbook called incorrectly
fail:
msg: "The `server_path_postgres_dump` variable needs to be provided to this playbook, via --extra-vars"
when: "server_path_postgres_dump is not defined or server_path_postgres_dump.startswith('<')"
- name: Check if the provided Postgres dump file exists
stat:
path: "{{ server_path_postgres_dump }}"
register: result_server_path_postgres_dump_stat
- name: Fail if provided Postgres dump file doesn't exists
fail:
msg: "File cannot be found on the server at {{ server_path_postgres_dump }}"
when: not result_server_path_postgres_dump_stat.stat.exists
# Defaults
- name: Set postgres_start_wait_time, if not provided
set_fact:
postgres_start_wait_time: 15
when: "postgres_start_wait_time|default('') == ''"
# Actual import work
- 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
- 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: Perform Postgres database import
command: |
/usr/bin/docker run --rm --name matrix-postgres-import \
--network={{ matrix_docker_network }} \
--env-file={{ matrix_postgres_base_path }}/env-postgres-psql \
-v {{ server_path_postgres_dump }}:{{ server_path_postgres_dump }}:ro \
--entrypoint=/bin/sh
{{ matrix_postgres_docker_image_latest }}
-c 'cat {{ server_path_postgres_dump }} | \
{{ 'gunzip |' if server_path_postgres_dump.endswith('.gz') else '' }}
psql -v ON_ERROR_STOP=1 -h matrix-postgres'