--- # 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 import." when: "not matrix_postgres_enabled | bool" - name: Fail if playbook called incorrectly ansible.builtin.fail: msg: "The `sqlite_database_path` variable needs to be provided to this playbook, via --extra-vars" when: "sqlite_database_path is not defined or sqlite_database_path.startswith('<')" - name: Check if the provided SQLite database file exists ansible.builtin.stat: path: "{{ sqlite_database_path }}" register: sqlite_database_path_stat_result - name: Fail if provided SQLite database file doesn't exist ansible.builtin.fail: msg: "File cannot be found on the server at {{ sqlite_database_path }}" when: "not sqlite_database_path_stat_result.stat.exists" # We either expect `postgres_db_connection_string` specifying a full Postgres database connection string, # or `postgres_connection_string_variable_name`, specifying a name of a variable, which contains a valid connection string. - block: - name: Fail if postgres_connection_string_variable_name points to an undefined variable ansible.builtin.fail: msg="postgres_connection_string_variable_name is defined, but there is no variable with the name `{{ postgres_connection_string_variable_name }}`" when: "postgres_connection_string_variable_name not in vars" - name: Get Postgres connection string from variable ansible.builtin.set_fact: postgres_db_connection_string: "{{ lookup('vars', postgres_connection_string_variable_name) }}" when: 'postgres_connection_string_variable_name is defined' - name: Fail if playbook called incorrectly ansible.builtin.fail: msg: >- Either a `postgres_db_connection_string` variable or a `postgres_connection_string_variable_name` needs to be provided to this playbook, via `--extra-vars`. Example: `--extra-vars="postgres_db_connection_string=postgresql://username:password@localhost:/database_name"` or `--extra-vars="postgres_connection_string_variable_name=matrix_appservice_discord_database_connString"` when: "postgres_db_connection_string is not defined or not postgres_db_connection_string.startswith('postgresql://')" # 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('') == ''" # Actual import work - name: Ensure matrix-postgres is started ansible.builtin.service: name: matrix-postgres state: started daemon_reload: true register: matrix_postgres_service_start_result - 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 when: "matrix_postgres_service_start_result.changed | bool" - name: Import SQLite database from {{ sqlite_database_path }} into Postgres ansible.builtin.command: cmd: >- {{ matrix_host_command_docker }} run --rm --user={{ matrix_user_uid }}:{{ matrix_user_gid }} --cap-drop=ALL --network={{ matrix_docker_network }} --mount type=bind,src={{ sqlite_database_path }},dst=/in.db,ro --entrypoint=/bin/sh {{ matrix_postgres_pgloader_docker_image }} -c 'pgloader /in.db {{ postgres_db_connection_string }}' - name: Archive SQLite database ({{ sqlite_database_path }} -> {{ sqlite_database_path }}.backup) ansible.builtin.command: cmd: "mv {{ sqlite_database_path }} {{ sqlite_database_path }}.backup" - name: Inject result ansible.builtin.set_fact: matrix_playbook_runtime_results: | {{ matrix_playbook_runtime_results | default([]) + [ "NOTE: Your SQLite database file has been imported into Postgres. The original file has been moved from `{{ sqlite_database_path }}` to `{{ sqlite_database_path }}.backup`. When you've confirmed that the import went well and everything works, you should be able to safely delete this file." ] }}