一辅髓、發(fā)布springboot服務(wù)

拉取鏡像上傳到harbor倉庫

//拉取鏡像
docker pull openjdk:8u92-jdk-alpine
docker tag openjdk:8u92-jdk-alpine master128:8082/k8s/openjdk:8u92-jdk-alpine
//上傳harbor倉庫
docker push master128:8082/k8s/openjdk:8u92-jdk-alpine

編寫dockerfile

cd /usr/k8sDemo/demo1

vim Dockerfile

From master128:8082/k8s/openjdk:8u92-jdk-alpine
COPY springbootdemo-0.0.1-SNAPSHOT.jar /springbootdemo-0.0.1-SNAPSHOT.jar
ENTRYPOINT ["java","-jar","/springbootdemo-0.0.1-SNAPSHOT.jar"]

構(gòu)建鏡像

docker build -t springbootdemo:v1 .
//查看鏡像
docker images

docker tag springbootdemo:v0.46.0 master128:8082
//上傳鏡像到harbor
docker push master128:8082/k8s/springbootdemo:v1

運(yùn)行鏡像

docker run -it springbootdemo:v1

編寫k8s配置文件泣崩，并且配置ingress

vim springbootdemo.yaml

#創(chuàng)建namespace
apiVersion: v1
kind: Namespace
metadata:
  name: ingress-demo
---
#nodePort的方式
apiVersion: v1
kind: Service
metadata:
  name: sbd-nsvc
  namespace: ingress-demo
spec:
  type: NodePort
  ports:
  - port: 80
    targetPort: 8083
  selector:
    app: spring-boot-demo
---
#使用Deployment創(chuàng)建pods
apiVersion: apps/v1
kind: Deployment #對象類型
metadata:
  name: spring-boot-demo
  namespace: ingress-demo
  labels:
    app: spring-boot-demo
spec:
  replicas: 1
  selector:
    matchLabels:
      app: spring-boot-demo
  template:
    metadata:
      labels:
        app: spring-boot-demo
    spec:
      containers:  #容器
      - name: spring-boot-demo
        image: master128:8082/k8s/springbootdemo:v1
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 8083  #這個端口對應(yīng)我們項(xiàng)目配置文件里的端口
---
apiVersion: v1
kind: Service
metadata:
  name: sbd-svc
  namespace: ingress-demo
spec:
  type: ClusterIP
  ports:
  - port: 80
    targetPort: 8083 #對應(yīng)容器的端口
  selector:
    app: spring-boot-demo #對應(yīng)Deployment的標(biāo)簽

---
apiVersion: networking.k8s.io/v1beta1
kind: Ingress
metadata:
  name: sbd-ing
  namespace: ingress-demo
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /
spec:
  rules:
  - host: ingress.demo.com #域名
    http:
      paths:
      - path: /
        backend:
          serviceName: sbd-svc #對應(yīng)Service的名字
          servicePort: 80 #對應(yīng)Service的端口

執(zhí)行配置文件

 kubectl apply -f springbootdemo.yaml

發(fā)生的錯誤及解決辦法：

查看pod的情況，這里我沒有啟動成功洛口，查看詳細(xì)信息矫付，原來是k8s沒有與私有倉庫認(rèn)證

kubectl get pods -n ingress-demo -o wide

kubectl describe pod spring-boot-demo-7dff46b6f9-mbvn9 -n ingress-demo

創(chuàng)建harbor與k8s的認(rèn)證

 kubectl create secret docker-registry ingressharbor --namespace=default --docker-server=master128:8082 --docker-username=admin --docker-password=123456

刪除創(chuàng)建的各種資源

kubectl delete Ingress spring-boot-demo-ingress -n ingress-demo
kubectl delete service spring-boot-demo -n ingress-demo
kubectl delete Deployment  spring-boot-demo -n ingress-demo

#或者直接刪除namespace 
kubectl delete namespace ingress-demo

重新執(zhí)行文件

 kubectl apply -f springbootdemo.yaml

查看ingress-demo下的服務(wù)

kubectl get svc -n ingress-demo

nodePort的方式訪問，響應(yīng)成功

custerip的方式訪問第焰，響應(yīng)成功

Ingress 的訪問方式

首先配置ingress的pod所在node的ip與域名綁定

 kubectl get pods -n ingress-nginx -o wide