Set flag to fix postgres volume permissions

[agracey]

We should set the volumePermissions.enabled=true flag when installing the postgres for gitea. This would fix potential issues with hostpath and nfs volumes.

See: rancher-sandbox/rancher-desktop#502 (comment)

[kkaempf]

Do we have a reported case why this is needed ? How can we test that this actually fixes a problem ?

[agracey]

Yes, I can no longer install on Rancher Desktop and Rob hit the same issue in: #641

This can be tested by installing the bitnami postgres chart by itself to see the same error.

[kkaempf]

Then I'd close this as a duplicate of #641 ?!

[kkaempf]

Closing in favor of #641