add chart values for nebula cluster

[MegaByte875]

What type of PR is this?

• bug
• feature
• enhancement

What problem(s) does this PR solve?

Issue(s) number:

Description:

How do you solve it?

Special notes for your reviewer, ex. impact of this fix, design document, etc:

[MegaByte875]

$ helm install nebula nebula-cluster/ --dry-run
NAME: nebula
LAST DEPLOYED: Fri Nov  3 10:17:32 2023
NAMESPACE: default
STATUS: pending-install
REVISION: 1
TEST SUITE: None
HOOKS:
MANIFEST:
---
# Source: nebula-cluster/templates/nebula-cluster.yaml
apiVersion: apps.nebula-graph.io/v1alpha1
kind: NebulaCluster
metadata:
  name: nebula-cluster
  namespace: default
  labels:
        
    app.kubernetes.io/version: "1.7.1"
    app.kubernetes.io/managed-by: Helm
    helm.sh/chart: nebula-cluster-1.7.1
spec:
  graphd:
    replicas: 2
    resources: 
      limits:
        cpu: "1"
        memory: 500Mi
      requests:
        cpu: 500m
        memory: 500Mi
    image: vesoft/nebula-graphd
    version: v3.6.0
    service:
      type: NodePort
      externalTrafficPolicy: Local
    logVolumeClaim:
      resources:
        requests:
          storage: 500Mi
  metad:
    replicas: 3
    resources: 
      limits:
        cpu: "1"
        memory: 1Gi
      requests:
        cpu: 500m
        memory: 500Mi
    image: vesoft/nebula-metad
    version: v3.6.0
    logVolumeClaim:
      resources:
        requests:
          storage: 500Mi
    dataVolumeClaim:
      resources:
        requests:
          storage: 2Gi
  storaged:
    replicas: 3
    resources: 
      limits:
        cpu: "1"
        memory: 1Gi
      requests:
        cpu: 500m
        memory: 500Mi
    image: vesoft/nebula-storaged
    version: v3.6.0
    enableAutoBalance: false
    enableForceUpdate: false
    logVolumeClaim:
      resources:
        requests:
          storage: 500Mi
    dataVolumeClaims:
    - resources:
        requests:
          storage: 10Gi
  exporter:
    replicas: 1
    resources: 
      limits:
        cpu: 200m
        memory: 256Mi
      requests:
        cpu: 100m
        memory: 128Mi
    image: vesoft/nebula-stats-exporter
    version: v3.3.0
    maxRequests: 20
  agent:
    image: vesoft/nebula-agent
    version: latest
    resources: 
      limits:
        cpu: 200m
        memory: 256Mi
      requests:
        cpu: 100m
        memory: 128Mi
  console:
    username: root
    password: nebula
    image: vesoft/nebula-console
    version: latest
  reference: 
    name: statefulsets.apps
    version: v1
  imagePullPolicy: Always
  schedulerName: default-scheduler
  topologySpreadConstraints: 
    - topologyKey: kubernetes.io/hostname
      whenUnsatisfiable: ScheduleAnyway
  enablePVReclaim: false
  enableBR: false

NOTES:
Nebula Cluster installed!

[veezhang]

LGTM

[jinyingsunny]

上面是示例可以支持：support configure multi storage data volume？ 如果想要配置两个dataVolume，该怎么写？

[jinyingsunny]

这个pr说支持了securityContext，我该怎么用呢？