ExpertFab – Longhorn Storage Architektur
Schaubild: ../diagrams/storage_architecture.png
StorageClasses
| Name |
Reclaim |
Binding |
Verwendung |
longhorn |
Delete |
Immediate |
RabbitMQ, Zitadel |
longhorn-erpnext |
Retain |
Immediate |
ERPNext (Daten bleiben!) |
longhorn-paperless |
Retain |
Immediate |
Paperless (Daten bleiben!) |
longhorn-static |
Delete |
Immediate |
Manuell provisionierte Volumes |
local-path |
Delete |
WaitForFirstConsumer |
Rancher local-path |
Retain = PV bleibt erhalten wenn PVC gelöscht wird → Schutz vor Datenverlust
PVCs nach Namespace
namespace: erpnext
| PVC |
Größe |
Mode |
StorageClass |
| data-erpnext-mariadb-sts-0 |
3 Gi |
RWO |
longhorn-erpnext |
| erpnext |
3 Gi |
RWX |
longhorn-erpnext |
| erpnext-logs |
1 Gi |
RWX |
longhorn-erpnext |
namespace: paperless
| PVC |
Größe |
Mode |
StorageClass |
| paperless-media |
10 Gi |
RWO |
longhorn-paperless |
| paperless-consume |
5 Gi |
RWO |
longhorn-paperless |
| paperless-data |
5 Gi |
RWO |
longhorn-paperless |
| postgres-data |
5 Gi |
RWO |
longhorn-paperless |
namespace: rabbitmq
| PVC |
Größe |
Mode |
StorageClass |
| rabbitmq-data-rabbitmq-0 |
5 Gi |
RWO |
longhorn |
namespace: zitadel
| PVC |
Größe |
Mode |
StorageClass |
| postgres-data-postgres-0 |
10 Gi |
RWO |
longhorn |
Longhorn Pods nach Node
efsckubnode1 (10.42.71.51)
| Pod |
Typ |
Replicas |
| longhorn-manager |
DaemonSet |
1 |
| longhorn-csi-plugin |
DaemonSet |
1 |
| engine-image |
DaemonSet |
1 |
| instance-manager |
– |
1 |
| longhorn-driver-deployer |
Deployment |
1 |
| longhorn-ui |
Deployment |
2 |
| csi-attacher |
Deployment |
3 |
| csi-provisioner |
Deployment |
3 |
| csi-resizer |
Deployment |
3 |
| csi-snapshotter |
Deployment |
3 |
efsckubnode2 (10.42.71.52)
| Pod |
Typ |
Beschreibung |
| longhorn-manager |
DaemonSet |
– |
| longhorn-csi-plugin |
DaemonSet |
– |
| engine-image |
DaemonSet |
– |
| instance-manager |
– |
– |
| share-manager (erpnext) |
– |
Bedient RWX-Volume erpnext (3Gi) |
| share-manager (erpnext-logs) |
– |
Bedient RWX-Volume erpnext-logs (1Gi) |
| daily-backup |
CronJob |
Tägliches Backup |
share-manager Pods werden für RWX-Volumes benötigt: Longhorn stellt RWX über NFS-Share-Manager bereit.
CSI-Controller-Pods (attacher, provisioner, resizer, snapshotter) laufen nur auf efsckubnode1.
Hinweise
- Longhorn UI: erreichbar über Port-Forward
kubectl port-forward -n longhorn-system svc/longhorn-frontend 8080:80
- Replikation: Standard 2 Replicas (beide Worker-Nodes)
- Backups:
daily-backup CronJob auf efsckubnode2
