example: how to run a pod on sealos cloud

[wuxming]

apiVersion: v1
kind: Pod
metadata:
  name: my-first-demo
  labels:
    app: my-first-demo
spec:
  containers:
    - name: my-first-demo
      image: hellodm/my-first-demo:v1.0
      ports:
        - containerPort: 80
      resources:
        requests:
          cpu: 0.1
          memory: 32Mi
        limits:
          cpu: 0.5
          memory: 32Mi
---
apiVersion: v1
kind: Service
metadata:
  name: my-first-demo-svc
  labels:
    app: my-first-demo
spec:
  type: ClusterIP
  ports:
    - port: 8080
      targetPort: 80

  selector:
    app: my-first-demo

---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  annotations:
    kubernetes.io/ingress.class: nginx
    nginx.ingress.kubernetes.io/rewrite-target: /
    nginx.ingress.kubernetes.io/backend-protocol: "HTTP"
  name: hello-world
  labels:
    k8s-app: hello-world
spec:
  rules:
    - host: hello.cloud.sealos.io
      http:
        paths:
          - pathType: Prefix
            path: /
            backend:
              service:
                name: my-first-demo-svc 
                port:
                  number: 8080
  tls:
    - hosts:
        - hello.cloud.sealos.io
      secretName: wildcard-cloud-sealos-io-cert

[fanux]

常见问题

1. The Service "my-first-demo-svc" is invalid: spec.ports[0].nodePort: Invalid value: 30001: provided port is already allocated

因为 sealos cloud 上用户权限是收敛的，没有操作主机端口的权限，所以无法使用 NodePort, 集群出口统一通过 ingress 出