fix(compose): Adjust the path of the Postgres volume

[nnobelis]

The Postgres 18 Docker image requires the filesystem path where the DB is stored to contain the database version. See 1.

[sschuberth]

Did you see 240ce82 in this regard?

[nnobelis]

Did you see 240ce82 in this regard?

Interesting. Without the changes of current PR, I was getting the error you mentioned in 240ce82. I am surprised it was enough for you.

[sschuberth]

I am surprised it was enough for you.

IIRC it also solved the issue for @Etsija and @lamppu. Can you both remember / confirm?

[nnobelis]

I tested again with db:/var/lib/postgresql/ and I get:

ostgres-1  | Error: in 18+, these Docker images are configured to store database data in a
postgres-1  |        major-version-specific directory names).  This better reflects how
postgres-1  | 
postgres-1  |        See also https://github.com/docker-library/postgres/pull/1259
postgres-1  | 
postgres-1  |          /var/lib/postgresql
postgres-1  | 
postgres-1  |        upgrading the underlying database using "pg_upgrade" (which requires both
postgres-1  | 
postgres-1  |        The suggested container configuration for 18+ is to place a single mount
postgres-1  |        subdirectory, allowing usage of "pg_upgrade --link" without mount point

However I didn't use pg_upgrade --link, just pg_upgrade. So maybe my setup is to blame.

What do you think ? Should I close current PR ?

[sschuberth]

What do you think ? Should I close current PR ?

Ideally, you'd be able to redo the upgrade with pg_upgrade --link to confirm the existing fix, then we could close this with confidence.

Otherwise, let's wait for some more feedback from others.

[lamppu]

I am surprised it was enough for you.

IIRC it also solved the issue for @Etsija and @lamppu. Can you both remember / confirm?

Yes I think it did, but we haven't used pg_upgrade, we've been advised to use this process instead when we want to keep the old data https://eclipse-apoapsis.github.io/ort-server/docs/admin-guide/getting-started/docker-compose/#major-version-upgrades-of-postgresql