postgresqlkuberneteskubernetes-helm

Helm postgres cannot create directory

I'm using Helm to deploy postgres on Kubernetes cluster. I create a persistent volume and a persistent volume claim:

pv.yaml:

apiVersion: v1
kind: PersistentVolume
metadata:
  name: task-pv-volume
  labels:
    type: local
spec:
  storageClassName: manual
  capacity:
    storage: 10Gi
  accessModes:
    - ReadWriteMany
  hostPath:
    path: "/mnt/data"

pvc.yaml:

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: task-pv-claim
spec:
  storageClassName: manual
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 8Gi

and run helm with command:

helm install my-release stable/postgresql --set persistence.existingClaim=task-pv-claim

but Pods is in state CrashLoopBackOff. Logs of the pod say:

postgresql 12:12:18.62 
postgresql 12:12:18.62 Welcome to the Bitnami postgresql container
postgresql 12:12:18.62 Subscribe to project updates by watching https://github.com/bitnami/bitnami-docker-postgresql
postgresql 12:12:18.62 Submit issues and feature requests at https://github.com/bitnami/bitnami-docker-postgresql/issues
postgresql 12:12:18.63 Send us your feedback at containers@bitnami.com
postgresql 12:12:18.63 
postgresql 12:12:18.65 INFO  ==> ** Starting PostgreSQL setup **
postgresql 12:12:18.73 INFO  ==> Validating settings in POSTGRESQL_* env vars..
postgresql 12:12:18.73 INFO  ==> Loading custom pre-init scripts...
postgresql 12:12:18.74 INFO  ==> Initializing PostgreSQL database...
mkdir: cannot create directory ‘/bitnami/postgresql/data’: Permission denied
postgresql 12:12:18.76 INFO  ==> Stopping PostgreSQL...

How can i fix it?

Solution

  • Try setting the helm charts volumePermissions.enabled to true.

    Sometimes the cluster settings don't give the running container enough permissions to actuall write to the mounted volume by default.