Update grafanaService.go

[gxg001]

fix: the nodeport setting does not take effect #730

Description

changes： Added nodeport handling for port 3000
motivation and context： use customize nodeport replace ingress

Relevant issues/tickets

the nodeport setting does not take effect #730

Type of change

• Bug fix (non-breaking change which fixes an issue)

Checklist

• I have added tests that prove my fix is effective or that my feature works
• I have added a test case that will be used to verify my changes
• Verified independently on a cluster by reviewer

Verification steps

1. when i apply this

  service:
    name: "grafana-service"
    labels:
      app: "grafana"
      type: "grafana-service"
    ports:
      - { nodePort: 3000, port: 3000, protocol: TCP, name: web }
    type: NodePort

the result is

2. when apply

  service:
    name: "grafana-service"
    labels:
      app: "grafana"
      type: "grafana-service"
    ports:
      - { nodePort: 3000, port: 3000, protocol: TCP, name: web }
      - { nodePort: 3001, port: 3001, protocol: TCP, name: web1 }
    type: NodePort

the result is

3. when apply

  service:
    name: "grafana-service"
    labels:
      app: "grafana"
      type: "grafana-service"
    ports:
      - { port: 3000, protocol: TCP, name: web }
      - { port: 3001, protocol: TCP, name: web1 }
    type: NodePort

the result is

[HubertStefanski]

@gitgaoxiang Looks good to me! can you make sure test/fmt pass?

[NissesSenap]

LGTM