k3s/data-restorer.yaml

apiVersion: v1
kind: Pod
metadata:
  name: data-restorer
  namespace: matrix
spec:
  containers:
  - name: alpine
    image: alpine:latest
    command: ["/bin/sh", "-c", "apk add --no-cache vim rsync coreutils sqlite postgresql && sleep infinity"]
    volumeMounts:
    - mountPath: /restore
      name: target-volume
  volumes:
  - name: target-volume
    persistentVolumeClaim:
      claimName: postgres-data