cqrenet/matrix-docker-ansible-deploy
3
0
Fork 0
mirror of https://github.com/spantaleev/matrix-docker-ansible-deploy.git synced 2025-10-19 22:53:23 +00:00
Code Issues Wiki Activity

Split README into a bunch of files in docs/

Browse Source
This commit is contained in:
Slavi Pantaleev
2018-08-08 10:07:02 +03:00
parent 700602eed3
commit 30c53cdea2
15 changed files with 300 additions and 245 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
docs/maintenance-upgrading-postgres.md Normal file
View File

@@ -0,0 +1,20 @@
# Upgrading PostgreSQL
If you're not using an external Postgres server, this playbook initially installs Postgres for you.
Once installed like that, this playbook attempts to preserve the Postgres version it starts with.
This is because newer Postgres versions cannot start with data generated by an older Postgres version.
An upgrade must be performed.
This playbook can upgrade your existing Postgres setup with the following command:
ansible-playbook -i inventory/hosts setup.yml --tags=upgrade-postgres
**The old Postgres data directory is backed up** (by renaming to `/matrix/postgres-auto-upgrade-backup`).
It stays around forever, until you **manually decide to delete it**.
As part of the upgrade, the database is dumped to `/tmp`, upgraded and then restored from that dump.
To use a different directory, pass some extra flags to the command above, like this: `--extra-vars="postgres_dump_dir=/directory/to/dump/here"`
**ONLY one database is migrated** (the one specified in `matrix_postgres_db_name`, named `homeserver` by default).
If you've created other databases in that database instance (something this playbook never does and never advises), data will be lost.