moved from docker to kubernetes (k3s) (#14)

Co-authored-by: Márcio Fernandes
Reviewed-on: #14

backup/backup-cronjob.yaml

@@ -0,0 +1,101 @@
+apiVersion: batch/v1
+kind: CronJob
+metadata:
+  name: gitea-backup
+  namespace: git-limbosolutions-com
+spec:
+  schedule: "0 1 * * *"
+  jobTemplate:
+    spec:
+      backoffLimit: 1
+      template:
+        spec:
+          restartPolicy: Never
+          initContainers:
+            - name: postgres-export
+              image: postgres:latest
+              command: ["sh", "-c"]
+              args:
+                - |
+                  echo "INFO: Starting export"
+                  . /run/database-access-secret/database
+                  export PGPASSWORD=$PASSWD
+                  echo "INFO: Exporting database"
+                  pg_dump -h gitea-postgresql.git-limbosolutions-com.svc.cluster.local -U $USER -d $NAME > /data/postgresql-export/db_backup.sql
+                  if [ $? -ne 0 ]; then
+                    echo "ERROR: Exporting database failed"
+                    exit 1
+                  fi
+                  echo "INFO: Exporting database finished"
+
+              volumeMounts:
+              - name: db-postgresql-data
+                mountPath: /var/lib/postgresql/data
+                
+              - name: backup-run-data
+                mountPath: /data/postgresql-export
+                subPath: postgresql-export
+
+              - name: database-access-secret
+                mountPath: /run/database-access-secret
+                readOnly: true
+
+          containers:
+            - name: gitea-pbs-client
+              image: git.limbosolutions.com/kb/pbsclient
+              env:  
+                - name: MODE
+                  value: shell
+                - name: PBS_REPOSITORY
+                  valueFrom:
+                    secretKeyRef:
+                      name: gitea-backup-secret
+                      key:  PBS_REPOSITORY
+                - name: PBS_PASSWORD
+                  valueFrom:
+                    secretKeyRef:
+                      name: gitea-backup-secret
+                      key: PBS_PASSWORD
+                - name: PBS_FINGERPRINT
+                  valueFrom:
+                    secretKeyRef:
+                      name: gitea-backup-secret
+                      key: PBS_FINGERPRINT
+
+              command: ["bash", "-c"]
+              args:
+                - |
+                  proxmox-backup-client backup gitea-data.pxar:/data/gitea-data postgresql-data.pxar:/data/postgresql-data postgresql-export.pxar:/data/postgresql-export --include-dev /data/postgresql-data --include-dev /data/postgresql-export --include-dev /data/gitea-data --backup-id "gitea-full" -ns git.limbosolutions.com
+                  echo "INFO: git.limbosolutions.com finished"
+
+              volumeMounts:
+              - name: gitea-shared-storage
+                mountPath: /data/gitea-data
+
+              - name: db-postgresql-data
+                mountPath: /data/postgresql-data
+              
+              - name: backup-run-data
+                mountPath: /data/postgresql-export
+                subPath: postgresql-export
+
+              - name: backup-run-data
+                mountPath: /tmp
+                subPath: tmp
+        
+
+          volumes:
+            - name: gitea-shared-storage
+              persistentVolumeClaim:
+                claimName: gitea-shared-storage
+
+            - name: db-postgresql-data
+              persistentVolumeClaim:
+                claimName: data-gitea-postgresql-0
+          
+            - name: backup-run-data
+              emptyDir: {}
+
+            - name: database-access-secret
+              secret:
+                secretName: gitea-inline-config