stack.basicstack.de/apps/forgejo/forgejo-backup-cronjob.yaml

apiVersion: batch/v1
kind: CronJob
metadata:
  name: forgejo-backup
  namespace: forgejo
  labels:
    app: forgejo-backup
spec:
  schedule: "0 3 * * *"
  concurrencyPolicy: Forbid
  successfulJobsHistoryLimit: 7
  failedJobsHistoryLimit: 3
  jobTemplate:
    spec:
      template:
        spec:
          restartPolicy: OnFailure
          containers:
          - name: forgejo-backup
            image: postgres:16-alpine
            imagePullPolicy: IfNotPresent
            command:
            - /bin/sh
            - -lc
            - |
              set -euo pipefail
              ts=$(date -u +%Y%m%dT%H%M%SZ)
              BACKUP_DIR="/data/forgejo-${ts}"
              mkdir -p "${BACKUP_DIR}"

              echo "[${ts}] Starting Forgejo backup..."

              # Backup PostgreSQL database
              echo "[$(date -u +%H:%M:%S)] Dumping PostgreSQL database..."
              PGPASSWORD="${POSTGRES_PASSWORD}" pg_dump \
                -h forgejo-postgres.forgejo.svc.cluster.local \
                -U "${POSTGRES_USER}" \
                -d "${POSTGRES_DB}" \
                -F c \
                -f "${BACKUP_DIR}/forgejo-db.dump"

              echo "[$(date -u +%H:%M:%S)] Database backup complete: $(ls -lh ${BACKUP_DIR}/forgejo-db.dump | awk '{print $5}')"

              # Create backup manifest
              echo "backup_timestamp=${ts}" > "${BACKUP_DIR}/manifest.txt"
              echo "type=postgresql_custom_dump" >> "${BACKUP_DIR}/manifest.txt"
              echo "database=forgejo" >> "${BACKUP_DIR}/manifest.txt"
              echo "restore_cmd=PGPASSWORD=<pass> pg_restore -h <host> -U forgejo -d forgejo -F c forgejo-db.dump" >> "${BACKUP_DIR}/manifest.txt"

              # Cleanup old backups (keep 14 days)
              find /data -maxdepth 1 -type d -name "forgejo-*" -mtime +14 -exec rm -rf {} + 2>/dev/null || true

              echo "[$(date -u +%H:%M:%S)] Backup complete. Files:"
              ls -lh "${BACKUP_DIR}/"

              echo "[$(date -u +%H:%M:%S)] All backups in storage:"
              ls -1 /data | grep "forgejo-"
            env:
            - name: POSTGRES_USER
              valueFrom:
                secretKeyRef:
                  name: forgejo-postgres-secret
                  key: POSTGRES_USER
            - name: POSTGRES_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: forgejo-postgres-secret
                  key: POSTGRES_PASSWORD
            - name: POSTGRES_DB
              valueFrom:
                secretKeyRef:
                  name: forgejo-postgres-secret
                  key: POSTGRES_DB
            volumeMounts:
            - name: backup-data
              mountPath: /data
          volumes:
          - name: backup-data
            persistentVolumeClaim:
              claimName: platform-backup-data