apiVersion: batch/v1
kind: CronJob
metadata:
  name: gitea-backup-offsite
  namespace: git-limbosolutions-com
spec:
  schedule: "0 2 * * *"
  jobTemplate:
    spec:
      backoffLimit: 1
      template:
        spec:
          restartPolicy: Never
          initContainers:
            - name: postgres-export
              image: postgres:latest
              command: ["sh", "-c"]
              args:
                - |
                  set -e
                  . /root/.gitea-inline-config/database
                  export PGPASSWORD=$PASSWD
                  pg_dump -h gitea-postgresql.git-limbosolutions-com.svc.cluster.local -U $USER -d $NAME > /data/postgresql-export/db_backup.sql
  
              volumeMounts:
                
              - name: backup-var-data
                mountPath: /data/postgresql-export
                subPath: postgresql-export

              - name: gitea-inline-config
                mountPath: /root/.gitea-inline-config
                readOnly: true

          containers:
            - name: borg-client
              image: git.limbosolutions.com/kb/borg-backup:latest
              resources:
                limits:
                  memory: "512Mi"
                  cpu: "500m"
                requests:
                  memory: "256Mi"
                  cpu: "250m"
              env:
                - name: BORG_REPO
                  valueFrom:
                    secretKeyRef:
                      name: gitea-backup-secret
                      key: BORG_REPO

                - name: BORG_PASSPHRASE
                  valueFrom:
                    secretKeyRef:
                      name: gitea-backup-secret
                      key: BORG_PASSPHRASE

                - name: BORG_RSH
                  value: ssh -o StrictHostKeyChecking=no -o LogLevel=ERROR


                - name: REPO_SYNC_MAX_SIZE
                  value: "6442450944" # 6GB
           
                - name: BORG_KEY_FILE
                  value: /root/.borg/key

              command: ["sh", "-c"]
              args:
              - |
                set -e
                
                SCRIPT_START_TIME=$(date +%s)

                # while true; do
                #   sleep 5
                # done

                
                borg create ${BORG_REPO}::postgresql-export-$(date +%Y%m%d%H%M%S) /data/postgresql-export
                borg create ${BORG_REPO}::gitea-data-$(date +%Y%m%d%H%M%S) /data/gitea-data

                #cleanup
                borg prune -v --list --keep-daily=10 --keep-weekly=7 --keep-monthly=-1 ${BORG_REPO} --glob-archives='gitea-data*'
                borg prune -v --list --keep-daily=10 --keep-weekly=7 --keep-monthly=-1 ${BORG_REPO} --glob-archives='postgresql-export*'
                borg compact ${BORG_REPO} 

                # check repo size
                REPO_SIZE_IN_BYTES=$(${BORG_RSH} mf@backupsrv01.dev.lan -p 2222 "du -b ~/borg-repos/git.limbosolutions.com -d 0 | cut -f1 ")
                echo "Repository size: $((REPO_SIZE_IN_BYTES / 1024 / 1024)) MB"
                
                if [ $REPO_SIZE_IN_BYTES -gt $REPO_SYNC_MAX_SIZE ]; then \
                  echo "ERROR: Repository size exceeds $REPO_SYNC_MAX_SIZE";
                  exit 1;
                else 
                  # Repository size is within limits for offsite sync
                  # ssh to backup server and enforce rclone to onedrive
                  ${BORG_RSH} mf@backupsrv01.dev.lan -p 2222 \
                  "rclone sync ~/borg-repos/git.limbosolutions.com mf_onedrive:.backups/git.limbosolutions.com/borg" && \
                  SCRIPT_DURATION=$(($(date +%s) - SCRIPT_START_TIME)) && \
                  echo "INFO: Finished Backup of git.limbosolutions.com (offsite) ($((SCRIPT_DURATION / 60 / 60)):$((SCRIPT_DURATION / 60)):$((SCRIPT_DURATION % 60))) "
                fi

                #outputs info
                borg info ${BORG_REPO}
                #borg info ${BORG_REPO} --json
              volumeMounts:
                - name: gitea-data
                  mountPath: /data/gitea-data

                - name: backup-var-data
                  mountPath: /data/postgresql-export
                  subPath: postgresql-export
              
                - name: gitea-backup-secret
                  mountPath: /root/.borg/key
                  subPath: BORG_KEY_FILE

                - name: gitea-backup-secret
                  mountPath: /root/.ssh/id_rsa
                  subPath: SSH_ID_RSA


          volumes:
            - name: gitea-data
              persistentVolumeClaim:
                claimName: gitea-shared-storage

            - name: gitea-inline-config
              secret:
                secretName: gitea-inline-config
            
            - name: gitea-backup-secret
              secret:
                secretName: gitea-backup-secret
                defaultMode: 0600

            - name: backup-var-data
              emptyDir: {}