Add (SQLite -> Postgres) migration instructions

This commit is contained in:
Slavi Pantaleev 2020-12-14 02:24:32 +02:00
parent cb969c6ca2
commit 4617984b9f

View File

@ -1,10 +1,13 @@
---
- block:
- set_fact:
matrix_appservice_discord_sqlite_db_path: "{{ matrix_appservice_discord_data_path }}/{{ matrix_appservice_discord_database_filename_name }}"
- name: Check if an SQLite database already exists
stat:
path: "{{ matrix_appservice_discord_data_path }}/{{ matrix_appservice_discord_database_filename_name }}"
register: matrix_appservice_discord_stat_sqlite_db
path: "{{ matrix_appservice_discord_sqlite_db_path }}"
register: matrix_appservice_discord_sqlite_db_path_stat_result
- name: Fail if an SQLite database already exists when using Postgres
fail:
@ -12,8 +15,12 @@
matrix_appservice_discord_database_engine has been set to `postgres` (which is our new default now).
However, we've discovered an existing SQLite database in {{ matrix_appservice_discord_data_path }}/{{ matrix_appservice_discord_database_filename_name }}.
It appears that you've been using this bridge with the SQLite engine until now.
To continue using SQLite, opt into it explicitly: add `matrix_appservice_discord_database_engine: sqlite` to your vars.yml file.
To migrate to Postgres: TODO - migration instructions here.
To continue using SQLite, opt into it explicitly: add `matrix_appservice_discord_database_engine: sqlite` to your vars.yml file and re-run this same command.
Alternatively, to migrate your existing SQLite database to Postgres:
1. Stop all services (`ansible-playbook -i inventory/hosts setup.yml --tags=stop`)
2. Import the SQLite database into Postgres (`ansible-playbook -v -i inventory/hosts setup.yml --tags=import-generic-sqlite-db --extra-vars='sqlite_database_path={{ matrix_appservice_discord_sqlite_db_path }} postgres_db_connection_string={{ matrix_appservice_discord_database_connString }}'`)
3. Re-run the playbook (`ansible-playbook -i inventory/hosts setup.yml --tags=setup-all,start`)
when: "matrix_appservice_discord_sqlite_db_path_stat_result.stat.exists"
when: "matrix_appservice_discord_database_engine == 'postgres'"
- name: Ensure Appservice Discord image is pulled