Fix wrong postgres mount path

[mueckinger]

closes #763

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Note

Low Risk
Low risk deployment-config change, but it can affect where Postgres stores data and may require attention when upgrading existing persisted volumes.

Overview
Updates Postgres persistence to mount the volume at /var/lib/postgresql (instead of /var/lib/postgresql/data) in both deploy/docker-compose.yml and the Helm postgres.yaml StatefulSet template.

Also simplifies the backend Docker build by using COPY --chmod=755 for backend-entrypoint.sh, removing the separate chmod layer.

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Cursor Bugbot has reviewed your changes and found 1 potential issue.

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[cursor]

Pulumi config still uses old postgres mount path

Medium Severity

The mount path fix from /var/lib/postgresql/data to /var/lib/postgresql was applied in docker-compose.yml and postgres.yaml, but deploy/pulumi/src/services.ts still has the old containerPath: '/var/lib/postgresql/data' at line 93. The Pulumi-based deployment will continue to exhibit the same wrong-mount-path issue this PR intends to fix.

Additional Locations (1)

• deploy/k8s/templates/postgres.yaml#L49-L50

 

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[heuzef]

Workaround tested, working well 👍