apiVersion: batch/v1
kind: Job
metadata:
  name: gitea-postgres-migrate-to-longhorn
  namespace: gitea
spec:
  backoffLimit: 2
  template:
    metadata:
      name: gitea-postgres-migrate-to-longhorn
    spec:
      restartPolicy: Never
      containers:
        - name: migrate
          image: alpine:3.20
          command:
            - sh
            - -c
            - |
              set -euo pipefail
              apk add --no-cache rsync findutils coreutils

              src_count="$(find /source -mindepth 1 | wc -l | tr -d ' ')"
              echo "Source entries before copy: ${src_count}"

              rsync -aHAX --numeric-ids --delete /source/ /target/

              target_count="$(find /target -mindepth 1 | wc -l | tr -d ' ')"
              echo "Target entries after copy: ${target_count}"

              test -f /target/PG_VERSION
              test -d /target/base
              test "${target_count}" -gt 0

              echo "Top-level target contents:"
              ls -la /target
              echo "Migration verification successful"
          volumeMounts:
            - name: source
              mountPath: /source
              readOnly: true
            - name: target
              mountPath: /target
      volumes:
        - name: source
          persistentVolumeClaim:
            claimName: postgres-pvc
        - name: target
          persistentVolumeClaim:
            claimName: postgres-longhorn-pvc