k8s(12) : 部署javaweb应用
【代码】k8s(12) : 部署javaweb应用。
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1.拉取jdk镜像
docker pull openjdk:8-jdk
2.Dockerfile
cat > Dockerfile <<'EOF'
# 基础镜像
FROM openjdk:8-jdk
ADD ./*.jar /app.jar
RUN ln -sf /usr/share/zoneinfo/Asia/ShangHai /etc/localtime \
&& echo Asia/Shanghai > /etc/timezone \
&& dpkg-reconfigure -f noninteractive tzdata
ENTRYPOINT ["java", "-jar", "/app.jar"]
EOF
3.构建镜像
docker build -t java-test:0.1 .
4.deploy.yaml
cat > deploy.yaml <<'EOF'
apiVersion: apps/v1
kind: Deployment
metadata:
name: java-test
spec:
replicas: 1
selector:
matchLabels:
app: java-test
template:
metadata:
labels:
app: java-test
spec:
containers:
- env:
- name: SPRING_PROFILES_ACTIVE
value: "prod"
name: java-test
image: java-test:0.1
imagePullPolicy: Never
ports:
- containerPort: 8080
protocol: TCP
imagePullSecrets:
- name: myregistrykey
EOF
注 : 8080为容器内部运行端口
5.service.yaml
cat > service.yaml <<'EOF'
kind: Service
apiVersion: v1
metadata:
labels:
app: java-test-service
name: java-test-service
namespace: test
spec:
type: NodePort
ports:
- name: http
port: 8080
nodePort: 30611
protocol: TCP
targetPort: 8080
selector:
app: java-test
EOF
注 : 8080为容器内部运行端口,30611为外部访问端口
6.创建
kubectl create ns test
kubectl apply -f deploy.yaml -n test
kubectl apply -f service.yaml -n test
7.查看
kubectl get all -n test|grep java-test
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