Document that using an external Postgres server has serious downsides

Related to:

- https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/1682
- https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/1679
This commit is contained in:
Slavi Pantaleev 2022-03-08 09:28:48 +02:00
parent 5a4dd2b3e8
commit d5de1e8352
2 changed files with 10 additions and 1 deletions

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@ -5,7 +5,9 @@ If that's alright, you can skip this.
If you'd like to use an external PostgreSQL server that you manage, you can edit your configuration file (`inventory/host_vars/matrix.<your-domain>/vars.yml`). If you'd like to use an external PostgreSQL server that you manage, you can edit your configuration file (`inventory/host_vars/matrix.<your-domain>/vars.yml`).
It should be something like this: **NOTE**: using **an external Postgres server is currently [not very seamless](https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/1682#issuecomment-1061461683) when it comes to enabling various other playbook services** - you will need to create a new database/credentials for each service and to point each service to its corresponding database using custom `vars.yml` configuration. **For the best experience with the playbook, stick to using the integrated Postgres server**.
If you'd like to use an external Postgres server, use a custom `vars.yml` configuration like this:
```yaml ```yaml
matrix_postgres_enabled: false matrix_postgres_enabled: false
@ -15,6 +17,10 @@ matrix_synapse_database_host: "your-postgres-server-hostname"
matrix_synapse_database_user: "your-postgres-server-username" matrix_synapse_database_user: "your-postgres-server-username"
matrix_synapse_database_password: "your-postgres-server-password" matrix_synapse_database_password: "your-postgres-server-password"
matrix_synapse_database_database: "your-postgres-server-database-name" matrix_synapse_database_database: "your-postgres-server-database-name"
# Rewire any other service (each `matrix-*` role) you may wish to use to use your external Postgres server.
# Each service expects to have its own dedicated database on the Postgres server
# and uses its own variable names (see `roles/matrix-*/defaults/main.yml) for configuring Postgres connectivity.
``` ```
The database (as specified in `matrix_synapse_database_database`) must exist and be accessible with the given credentials. The database (as specified in `matrix_synapse_database_database`) must exist and be accessible with the given credentials.

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@ -1,5 +1,8 @@
--- ---
# Controls if the Postgres server managed by the playbook is enabled.
# You can turn it off and use an external Postgres server by setting this to `false`.
# Doing this has various downsides. See `docs/configuring-playbook-external-postgres.md` to learn more.
matrix_postgres_enabled: true matrix_postgres_enabled: true
matrix_postgres_connection_hostname: "matrix-postgres" matrix_postgres_connection_hostname: "matrix-postgres"