transcaffeine
4 years ago
parent
3ab7dd1abe
commit
13d8a9b39c
@ -0,0 +1,117 @@
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---
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# Pre-checks
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- name: Fail if Postgres not enabled
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fail:
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msg: "Postgres via the matrix-postgres role is not enabled (`matrix_postgres_enabled`). Cannot import."
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when: "not matrix_postgres_enabled|bool"
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- name: Fail if playbook called incorrectly
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fail:
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msg: "The `nedb_database_path` variable needs to be provided to this playbook, via --extra-vars"
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when: "nedb_database_path is not defined or nedb_database_path.startswith('<')"
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- name: Check if the provided nedb database file exists
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stat:
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path: "{{ nedb_database_path }}"
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register: nedb_database_path_stat_result
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- name: Fail if provided SQLite database file doesn't exist
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fail:
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msg: "File cannot be found on the server at {{ nedb_database_path }}"
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when: "not nedb_database_path_stat_result.stat.exists"
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# We either expect `postgres_db_connection_string` specifying a full Postgres database connection string,
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# or `postgres_connection_string_variable_name`, specifying a name of a variable, which contains a valid connection string.
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- block:
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- name: Fail if postgres_connection_string_variable_name points to an undefined variable
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fail: msg="postgres_connection_string_variable_name is defined, but there is no variable with the name `{{ postgres_connection_string_variable_name }}`"
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when: "postgres_connection_string_variable_name not in vars"
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- name: Get Postgres connection string from variable
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set_fact:
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postgres_db_connection_string: "{{ lookup('vars', postgres_connection_string_variable_name) }}"
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when: 'postgres_connection_string_variable_name is defined'
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- name: Fail if playbook called incorrectly
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fail:
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msg: >-
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Either a `postgres_db_connection_string` variable or a `postgres_connection_string_variable_name` needs to be provided to this playbook, via `--extra-vars`.
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Example: `--extra-vars="postgres_db_connection_string=postgresql://username:password@localhost:<port>/database_name"` or `--extra-vars="postgres_connection_string_variable_name=matrix_appservice_discord_database_connString"`
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when: "postgres_db_connection_string is not defined or not postgres_db_connection_string.startswith('postgresql://')"
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# Defaults
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- name: Set postgres_start_wait_time, if not provided
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set_fact:
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postgres_start_wait_time: 15
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when: "postgres_start_wait_time|default('') == ''"
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# Actual import work
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- name: Ensure matrix-postgres is started
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service:
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name: matrix-postgres
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state: started
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daemon_reload: yes
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register: matrix_postgres_service_start_result
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- name: Wait a bit, so that Postgres can start
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wait_for:
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timeout: "{{ postgres_start_wait_time }}"
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delegate_to: 127.0.0.1
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become: false
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when: "matrix_postgres_service_start_result.changed|bool"
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# See https://github.com/matrix-org/matrix-appservice-irc/wiki/Migrating-from-NEdB-to-PostgreSQL
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- name: Import appservice_irc NeDB database from {{ sqlite_database_path }} into Postgres
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when: database == 'appservice_irc'
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command:
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cmd: >-
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{{ matrix_host_command_docker }} run
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--rm
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--user={{ matrix_user_uid }}:{{ matrix_user_gid }}
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--cap-drop=ALL
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--network={{ matrix_docker_network }}
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--mount type=bind,src={{ matrix_appservice_irc_data_path }}:/data:ro
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--entrypoint=/bin/sh
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{{ matrix_appservice_irc_docker_image }}
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-c
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'./scripts/migrate-db-to-pgres.sh -d /data -p passkey.pem -c {{ postgres_db_connection_string }}'
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# No migration.sh available, but found this:
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# https://github.com/matrix-org/matrix-appservice-slack/blob/develop/src/scripts/migrateToPostgres.ts
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# Usage should be similar to appservice_irc
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- name: Import appservice_slack NeDB database from {{ sqlite_database_path }} into Postgres
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when: database == 'appservice_slack'
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command:
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cmd: >-
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{{ matrix_host_command_docker }} run
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--rm
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--user={{ matrix_user_uid }}:{{ matrix_user_gid }}
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--cap-drop=ALL
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--network={{ matrix_docker_network }}
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--mount type=bind,src={{ matrix_appservice_irc_data_path }}:/data:ro
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--entrypoint=/bin/sh
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{{ matrix_appservice_slack_docker_image }}
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-c
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'node /lib/scripts/migrate-db-to-pgres.js -d /data -p passkey.pem -c {{ postgres_db_connection_string }}'
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- name: Archive NeDB database ({{ sqlite_database_path }} -> {{ sqlite_database_path }}.backup)
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command:
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cmd: "mv {{ sqlite_database_path }} {{ sqlite_database_path }}.backup"
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- name: Inject result
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set_fact:
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matrix_playbook_runtime_results: |
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{{
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matrix_playbook_runtime_results|default([])
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+
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[
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"NOTE: Your NeDB database file has been imported into Postgres. The original directory has been moved from `{{ nedb_database_path }}` to `{{ nedb_database_path }}.backup`. When you've confirmed that the import went well and everything works, you should be able to safely delete this file."
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]
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}}
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