Kubernetes 中部署 SpringBoot 应用

package cn.com.hellowood.k8sservice.controller;

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/")
public class K8sController {

    @GetMapping("/")
    public String root() {
        return "Hello Kubernetes";
    }

    @GetMapping("/healthz")
    public String healthz() {
        return "ok";
    }
}

FROM openjdk:8-jdk-alpine
VOLUME /tmp
ENV TZ=Asia/Shanghai
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
ARG JAR_FILE
ADD ${JAR_FILE} app.jar
ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom", "-Duser.timezone=GMT+08", "-jar","/app.jar"]

./gradlew clean build -x test

./gradlew dockerPush -i

apiVersion: v1
kind: Service
metadata:
  name: k8s-service
  namespace: default
  labels:
    app: k8s-service
spec:
  type: NodePort
  ports:
    - port: 8080
      nodePort: 30002
  selector:
    app: k8s-service

---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: k8s-service
  labels:
    app: k8s-service
spec:
  replicas: 1
  selector:
    matchLabels:
      app: k8s-service
  template:
    metadata:
      labels:
        app: k8s-service
    spec:
      containers:
        - name: k8s-service
          image: registry.cn-qingdao.aliyuncs.com/hellowoodes/k8s-service
          imagePullPolicy: IfNotPresent
          ports:
            - containerPort: 8080
          livenessProbe:
            httpGet:
              port: 8080
              path: /healthz
              scheme: HTTP
            periodSeconds: 15
            initialDelaySeconds: 30