Helm Chart Values für Longhorn

Damit die Longhorn Komponenten lediglich auf bestimmten Nodes ausgerollt werden muss das Chart Values angepasst werden und bestimmte Rollen und Taints gesetzt werden.

Rollen und Taints

kubectl label node k8s-worker01 k8s-node02 k8s-node03 longhorn-node=true
kubectl label node k8s-worker01 k8s-node02 k8s-node03 node.longhorn.io/create-default-disk=true
kubectl taint node k8s-worker01 k8s-node02 k8s-node03 longhorn-node=true:NoSchedule

Chart Values

preUpgradeChecker:                     ### Muss für das deployen über ArgoCD verwendet werden
  jobEnabled: false

defaultSettings:
  storageMinimalAvailablePercentage: "10"
  defaultDataPath: "/mnt/longhorn-storage"
  systemManagedComponentsNodeSelector: "longhorn-node:true"
  taintToleration: "longhorn-node=true:NoSchedule"
  createDefaultDiskLabeledNodes: true

persistence:
  defaultClassReplicaCount: 2
  defaultDataLocality: "best-effort"
  defaultNodeSelector:
    enabled: true
    selector: "storage"

longhornManager:
  tolerations:
  - key: "longhorn-node"
    operator: "Equal"
    value: "true"
    effect: "NoSchedule"
  nodeSelector:
    longhorn-node: "true"

csi:
  # Die zentralen Controller-Komponenten können wir auf die Storage-Nodes legen.
  attacher:
    tolerations:
    - key: "longhorn-node"
      operator: "Equal"
      value: "true"
      effect: "NoSchedule"
    nodeSelector:
      longhorn-node: "true"
  provisioner:
    tolerations:
    - key: "longhorn-node"
      operator: "Equal"
      value: "true"
      effect: "NoSchedule"
    nodeSelector:
      longhorn-node: "true"
  resizer:
    tolerations:
    - key: "longhorn-node"
      operator: "Equal"
      value: "true"
      effect: "NoSchedule"
    nodeSelector:
      longhorn-node: "true"
  snapshotter:
    tolerations:
    - key: "longhorn-node"
      operator: "Equal"
      value: "true"
      effect: "NoSchedule"
    nodeSelector:
      longhorn-node: "true"

longhornUI:
  replicas: 1
  tolerations:
  - key: "longhorn-node"
    operator: "Equal"
    value: "true"
    effect: "NoSchedule"
  nodeSelector:
    longhorn-node: "true"

service:
  ui:
    type: LoadBalancer

defaultSettings:
  storageMinimalAvailablePercentage: "10"
  defaultDataPath: "/mnt/longhorn-storage"
  systemManagedComponentsNodeSelector: "longhorn-node:true"

persistence:
  defaultClassReplicaCount: 2
  defaultDataLocality: "best-effort"
 
#longhornManager:
#  tolerations:
#  - key: "longhorn-node"
#    operator: "Equal"
#    value: "true"
#    effect: "NoSchedule"
#  nodeSelector:
#    longhorn-node: "true"

engine:
  tolerations:
  - key: "longhorn-node"
    operator: "Equal"
    value: "true"
    effect: "NoSchedule"
  nodeSelector:
    longhorn-node: "true"

csi:
  # Die zentralen Controller-Komponenten können wir auf die Storage-Nodes legen.
  attacher:
    tolerations:
    - key: "longhorn-node"
      operator: "Equal"
      value: "true"
      effect: "NoSchedule"
    nodeSelector:
      longhorn-node: "true"
  provisioner:
    tolerations:
    - key: "longhorn-node"
      operator: "Equal"
      value: "true"
      effect: "NoSchedule"
    nodeSelector:
      longhorn-node: "true"
  resizer:
    tolerations:
    - key: "longhorn-node"
      operator: "Equal"
      value: "true"
      effect: "NoSchedule"
    nodeSelector:
      longhorn-node: "true"
  snapshotter:
    tolerations:
    - key: "longhorn-node"
      operator: "Equal"
      value: "true"
      effect: "NoSchedule"
    nodeSelector:
      longhorn-node: "true"

longhornUI:
  replicas: 1
  tolerations:
  - key: "longhorn-node"
    operator: "Equal"
    value: "true"
    effect: "NoSchedule"
  nodeSelector:
    longhorn-node: "true"