[쿠버네티스 네트워크] 노드포트로 서비스하기 실습

cp http-go-deploy.yaml http-np-deploy.yaml

nano http-np-deploy.yaml

apiVersion: v1
kind: Service
metadata:
  name: http-go-np
spec:
  type: NodePort # default는 ClusterIp
  selector:
    run: http-go
  ports:
    - protocol: TCP
      port: 80
      targetPort: 8080
      nodePort: 30001 # default는 랜덤

kubectl create -f http-np-deploy.yaml

imkunyoung@cloudshell:~/kubeservice (k8s-inflearn)$ kubectl get svc
NAME          TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)        AGE
http-go-np    NodePort    10.108.10.79   <none>        80:30001/TCP   99s
http-go-svc   ClusterIP   10.108.3.150   <none>        80/TCP         22h
kubernetes    ClusterIP   10.108.0.1     <none>        443/TCP        5d8h
my-service    ClusterIP   10.108.2.92    <none>        80/TCP         22h

방화벽 열기

gcloud compute firewall-rules create http-go-svc-rule --allow=tcp:30001

imkunyoung@cloudshell:~/kubeservice (k8s-inflearn)$ kubectl get pods --show-labels=true
NAME                       READY   STATUS    RESTARTS   AGE   LABELS
bash                       1/1     Running   0          22h   run=bash
http-go                    1/1     Running   0          22h   run=http-go
http-go-85cf4fd86b-7wcn8   1/1     Running   0          23h   pod-template-hash=85cf4fd86b,run=http-go
http-go-85cf4fd86b-8qh56   1/1     Running   0          23h   pod-template-hash=85cf4fd86b,run=http-go
http-go-85cf4fd86b-ktv6b   1/1     Running   0          23h   pod-template-hash=85cf4fd86b,run=http-go
http-go-85cf4fd86b-s2t45   1/1     Running   0          23h   pod-template-hash=85cf4fd86b,run=http-go
http-go-85cf4fd86b-wx5sv   1/1     Running   0          23h   pod-template-hash=85cf4fd86b,run=http-go

imkunyoung@cloudshell:~/kubeservice (k8s-inflearn)$ kubectl get nodes -o wide
NAME                                                STATUS   ROLES    AGE    VERSION            INTERNAL-IP   EXTERNAL-IP      OS-IMAGE             KERNEL-VERSION    CONTAINER-RUNTIME
gke-my-first-cluster-1-default-pool-a0f2cf43-20cx   Ready    <none>   5d8h   v1.27.2-gke.2100   10.128.0.5    35.232.215.24    Ubuntu 22.04.2 LTS   5.15.0-1033-gke   containerd://1.7.0
gke-my-first-cluster-1-default-pool-a0f2cf43-m3k4   Ready    <none>   5d8h   v1.27.2-gke.2100   10.128.0.4    35.202.160.16    Ubuntu 22.04.2 LTS   5.15.0-1033-gke   containerd://1.7.0
gke-my-first-cluster-1-default-pool-a0f2cf43-zs3g   Ready    <none>   5d8h   v1.27.2-gke.2100   10.128.0.6    34.170.117.155   Ubuntu 22.04.2 LTS   5.15.0-1033-gke   containerd://1.7.0


imkunyoung@cloudshell:~/kubeservice (k8s-inflearn)$ curl 35.232.215.24:30001
Welcome! http-go-85cf4fd86b-s2t45
imkunyoung@cloudshell:~/kubeservice (k8s-inflearn)$ curl 35.232.215.24:30001
Welcome! http-go-85cf4fd86b-8qh56
imkunyoung@cloudshell:~/kubeservice (k8s-inflearn)$ curl 35.232.215.24:30001
Welcome! http-go-85cf4fd86b-s2t45

imkunyoung@cloudshell:~/kubeservice (k8s-inflearn)$ curl 35.202.160.16:30001
Welcome! http-go-85cf4fd86b-ktv6b
imkunyoung@cloudshell:~/kubeservice (k8s-inflearn)$ curl 35.202.160.16:30001
Welcome! http-go-85cf4fd86b-s2t45
imkunyoung@cloudshell:~/kubeservice (k8s-inflearn)$ curl 35.202.160.16:30001
Welcome! http-go-85cf4fd86b-s2t45

imkunyoung@cloudshell:~/kubeservice (k8s-inflearn)$ curl 34.170.117.155:30001
Welcome! http-go-85cf4fd86b-7wcn8
imkunyoung@cloudshell:~/kubeservice (k8s-inflearn)$ curl 34.170.117.155:30001
Welcome! http-go-85cf4fd86b-wx5sv
imkunyoung@cloudshell:~/kubeservice (k8s-inflearn)$ curl 34.170.117.155:30001
Welcome! http-go-85cf4fd86b-7wcn8

Reference:

difference-clusterip-nodeport-loadbalancer-kubernetes