apiVersion: batch/v1
kind: Job
metadata:
  name: plex-archlinux-migration
  namespace: plex
  labels:
    app.kubernetes.io/name: plex
    app.kubernetes.io/component: migration
spec:
  backoffLimit: 0
  template:
    metadata:
      labels:
        app.kubernetes.io/name: plex
        app.kubernetes.io/component: migration
    spec:
      restartPolicy: Never
      nodeSelector:
        kubernetes.io/hostname: arschrock
      tolerations:
        - key: node-role.kubernetes.io/control-plane
          operator: Exists
          effect: NoSchedule
      containers:
        - name: copy
          image: docker.io/library/alpine@sha256:28bd5fe8b56d1bd048e5babf5b10710ebe0bae67db86916198a6eec434943f8b
          imagePullPolicy: IfNotPresent
          command:
            - /bin/sh
            - -ec
            - |
              marker=/target/.archlinux-migration-complete
              source='/source/Plex Media Server'
              destination='/target/Library/Application Support/Plex Media Server'
              test -d "${source}"
              if [ -e "${marker}" ]; then
                echo 'Migration marker already exists; refusing to overwrite the PVC.' >&2
                exit 1
              fi
              if find /target -mindepth 1 -maxdepth 1 ! -name lost+found -print -quit | grep -q .; then
                echo 'The destination PVC is not empty; refusing to overwrite it.' >&2
                exit 1
              fi
              mkdir -p '/target/Library/Application Support'
              cp -a "${source}" '/target/Library/Application Support/' &
              copy_pid=$!
              while kill -0 "${copy_pid}" 2>/dev/null; do
                kill -CONT "${copy_pid}" 2>/dev/null || true
                sleep 0.2
                kill -STOP "${copy_pid}" 2>/dev/null || true
                sleep 3.8
              done
              kill -CONT "${copy_pid}" 2>/dev/null || true
              wait "${copy_pid}"
              sync -f /target
              source_files=$(find "${source}" -type f | wc -l)
              destination_files=$(find "${destination}" -type f | wc -l)
              source_bytes=$(find "${source}" -type f -exec stat -c '%s' {} + | awk '{ total += $1 } END { print total + 0 }')
              destination_bytes=$(find "${destination}" -type f -exec stat -c '%s' {} + | awk '{ total += $1 } END { print total + 0 }')
              test "${source_files}" = "${destination_files}"
              test "${source_bytes}" = "${destination_bytes}"
              printf 'source_files=%s\nsource_bytes=%s\n' "${source_files}" "${source_bytes}" > "${marker}"
              chown 964:964 /target "${marker}"
              echo "Copied ${source_files} files (${source_bytes} bytes)."
          resources:
            requests:
              cpu: 250m
              memory: 256Mi
          securityContext:
            allowPrivilegeEscalation: false
            runAsUser: 0
            runAsGroup: 0
          volumeMounts:
            - name: source
              mountPath: /source
              readOnly: true
            - name: target
              mountPath: /target
      volumes:
        - name: source
          hostPath:
            path: /var/lib/plex
            type: Directory
        - name: target
          persistentVolumeClaim:
            claimName: plex-config