[Improvement]I modified the service type to LoadBalancer for REDIS, but it DOES NOT reverts back to its original type

[decaMinCow]

I am encountering an issue where, after changing the Kubernetes service type to LoadBalancer, it keeps reverting to the previous service type. I am unable to persist the change.

[shanshanying]

HI @decaMinCow ,
I guess the issue you encountered is: you modified redis'svc, and KB does not reconcile it as what it did to MySQL Cluster. Pleesa add more details.

[decaMinCow]

When I modify the service type of MySQL to LoadBalancer, the change reverts back. However, for the Redis service, the service type is successfully set to LoadBalancer and persists. I am unsure why this behavior is different between the two services.

Below is the YAML configuration for the Redis cluster where the service type is changing as expected:

apiVersion: apps.kubeblocks.io/v1alpha1
kind: Cluster
metadata:
  name: redis-cluster
  namespace: test
spec:
  clusterDefinitionRef: redis
  topology: replication
  terminationPolicy: Delete
  affinity:
    podAntiAffinity: Preferred
    topologyKeys:
      - kubernetes.io/hostname
    tenancy: SharedNode
  tolerations:
    - key: kb-data
      operator: Equal
      value: 'true'
      effect: NoSchedule
  componentSpecs:
    - name: redis
      replicas: 3
      disableExporter: true
      enabledLogs:
        - running
      serviceAccountName: kb-redis-cluster
      resources:
        limits:
          cpu: '2'
          memory: 2Gi
        requests:
          cpu: '2'
          memory: 2Gi
      volumeClaimTemplates:
        - name: data
          spec:
            accessModes:
              - ReadWriteOnce
            resources:
              requests:
                storage: 20Gi
    - name: redis-sentinel
      replicas: 3
      resources:
        limits:
          cpu: '2'
          memory: 2Gi
        requests:
          cpu: '2'
          memory: 2Gi
      volumeClaimTemplates:
        - name: data
          spec:
            accessModes:
              - ReadWriteOnce
            resources:
              requests:
                storage: 20Gi

[shanshanying]

And I reproduced this on KB 091.
the apecloud-mysql yaml I used is :

apiVersion: apps.kubeblocks.io/v1alpha1
kind: Cluster
metadata:
  name: laurel38
  namespace: test
spec:
  clusterDefinitionRef: apecloud-mysql
  clusterVersionRef: ac-mysql-8.0.30
  componentSpecs:
  - componentDefRef: mysql
    disableExporter: true
    name: mysql
    replicas: 1
    resources:
      limits:
        cpu: "0.5"
        memory: 0.5Gi
      requests:
        cpu: "0.5"
        memory: 0.5Gi
    volumeClaimTemplates:
    - name: data
      spec:
        accessModes:
        - ReadWriteOnce
        resources:
          requests:
            storage: 20Gi
  terminationPolicy: Delete

[shanshanying]

KubeBlocks: 0.9.2-beta.10
kbcli: 0.9.1

1. create redis cluster by applying cluster.yaml
2. kubectl edit redis-cluster-redis-sentinel-redis-sentinel, change svc type from ClusterIP to LoadBalancer
3. and the change works
4. expected output: KB should reoncile svc type from LB to ClusterIP.

[shanshanying]

the generated redis svc for sentinal is

apiVersion: v1
kind: Service
metadata:
  creationTimestamp: "2024-11-05T08:04:21Z"
  finalizers:
  - component.kubeblocks.io/finalizer
  labels:
    app.kubernetes.io/instance: redis-cluster
    app.kubernetes.io/managed-by: kubeblocks
    apps.kubeblocks.io/component-name: redis-sentinel
  name: redis-cluster-redis-sentinel-redis-sentinel
  namespace: default
  ownerReferences:
  - apiVersion: apps.kubeblocks.io/v1alpha1
    blockOwnerDeletion: true
    controller: true
    kind: Component
    name: redis-cluster-redis-sentinel
    uid: 20e49f65-0981-44c3-b745-9d28056e4e81
  resourceVersion: "27493"
  uid: 29b87f4d-ab52-47c1-813f-412f8117fd72
spec:
  allocateLoadBalancerNodePorts: true
  clusterIP: 10.96.114.45
  clusterIPs:
  - 10.96.114.45
  externalTrafficPolicy: Cluster
  internalTrafficPolicy: Cluster
  ipFamilies:
  - IPv4
  ipFamilyPolicy: SingleStack
  ports:
  - name: redis-sentinel
    nodePort: 32035
    port: 26379
    protocol: TCP
    targetPort: redis-sentinel
  selector:
    app.kubernetes.io/instance: redis-cluster
    app.kubernetes.io/managed-by: kubeblocks
    apps.kubeblocks.io/component-name: redis-sentinel
  sessionAffinity: None
  type: LoadBalancer
status:
  loadBalancer: {}