개요

• Kubernetes Manifist 파일을 작성하고, 어플리케이션을 배포해 볼 것입니다.

사전조건

• Kubernetes on Docker Desktop

배포할 환경 미리보기

Kubernetes 배포 파일 작성

• Code Block
  theme Midnight title k8s-deploy.yml linenumbers true
  apiVersion: apps/v1 kind: Deployment metadata: name: spring-demo spec: selector: matchLabels: app: spring-demo replicas: 3 template: metadata: labels: app: spring-demo spec: containers: - name: spring-demo image: sooabia/spring-demo:1.0 ports: - containerPort: 8080 --- kind: Service apiVersion: v1 metadata: name: spring-service spec: selector: app: spring-demo ports: - protocol: TCP port: 80 targetPort: 8080 type: LoadBalancer --- apiVersion: apps/v1 kind: StatefulSet metadata: name: redis spec: selector: matchLabels: app: redis replicas: 1 template: metadata: labels: app: redis spec: containers: - name: redis image: redis ports: - containerPort: 6379 volumeMounts: - name: data mountPath: ./redis volumeClaimTemplates: - metadata: name: data spec: accessModes: [ "ReadWriteOnce" ] resources: requests: storage: 1Gi --- kind: Service apiVersion: v1 metadata: name: redis spec: selector: app: redis ports: - protocol: TCP port: 6379 targetPort: 6379 type: ClusterIP

배포

• Code Block
  language bash theme Midnight linenumbers true
  C:\Users\sanse\workspace\reactive-link-shortener-sample-app>kubectl apply -f k8s-deploy.yml deployment.apps/spring-demo created service/spring-service created statefulset.apps/redis created service/redis created C:\Users\sanse\workspace\reactive-link-shortener-sample-app>kubectl get pod NAME READY STATUS RESTARTS AGE redis-0 1/1 Running 0 26s spring-demo-86db8bb845-6h4g8 1/1 Running 0 26s spring-demo-86db8bb845-qhmj4 1/1 Running 0 26s spring-demo-86db8bb845-x79cl 1/1 Running 0 26s C:\Users\sanse\workspace\reactive-link-shortener-sample-app>kubectl get svc NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 31d redis ClusterIP 10.103.235.238 <none> 6379/TCP 41s spring-service LoadBalancer 10.110.19.153 localhost 80:31834/TCP 41s

서비스 확인

• Code Block
  linenumbers true
  C:\Users\sanse\workspace\reactive-link-shortener-sample-app>curl -XPOST http://localhost/link -H "Content-Type: application/json" -d "{\"link\":\"http://wiki.iisanse.com\"}" {"shortenedLink":"zMlnfI"}