kubernetes实战-交付dubbo服务到k8s集群（六）使用blue ocean流水线构建dubbo-consumer服务

我们这里的dubbo-consumer是dubbo-demo-service的消费者：

我们之前已经在jenkins配置好了流水线，只需要填写参数就行了。

由于dubbo-consumer用的gitee的私有仓库，需要添加公钥，这里大家可以自己找个client服务来做实验。

下面是我们通过jenkins构建的镜像，已经上传到我们的harbor私有仓库当中了：

 这里我们构建了两次，构建了两个镜像，11bb9cd这个用来做模拟生产发版更新实验。

准备资源配置清单：

1、dp.yaml  红色部分根据实际镜像tag修改

# mkdir /data/k8s-yaml/dubbo-consumer
# cd /data/k8s-yaml/dubbo-consumer

# vi dp.yaml

kind: Deployment
apiVersion: extensions/v1beta1
metadata:
  name: dubbo-demo-consumer
  namespace: app
  labels: 
    name: dubbo-demo-consumer
spec:
  replicas: 1
  selector:
    matchLabels: 
      name: dubbo-demo-consumer
  template:
    metadata:
      labels: 
        app: dubbo-demo-consumer
        name: dubbo-demo-consumer
    spec:
      containers:
      - name: dubbo-demo-consumer
        image: harbor.od.com/app/dubbo-demo-consumer:master_191201_1600
        ports:
        - containerPort: 8080
          protocol: TCP
        - containerPort: 20880
          protocol: TCP
        env:
        - name: JAR_BALL
          value: dubbo-client.jar
        imagePullPolicy: IfNotPresent
      imagePullSecrets:
      - name: harbor
      restartPolicy: Always
      terminationGracePeriodSeconds: 30
      securityContext: 
        runAsUser: 0
      schedulerName: default-scheduler
  strategy:
    type: RollingUpdate
    rollingUpdate: 
      maxUnavailable: 1
      maxSurge: 1
  revisionHistoryLimit: 7
  progressDeadlineSeconds: 600

2、svc.yaml

# vi svc.yaml

kind: Service
apiVersion: v1
metadata: 
  name: dubbo-demo-consumer
  namespace: app
spec:
  ports:
  - protocol: TCP
    port: 8080
    targetPort: 8080
  selector: 
    app: dubbo-demo-consumer

3、ingress.yaml

# vi ingress.yaml

kind: Ingress
apiVersion: extensions/v1beta1
metadata: 
  name: dubbo-demo-consumer
  namespace: app
spec:
  rules:
  - host: demo.od.com
    http:
      paths:
      - path: /
        backend: 
          serviceName: dubbo-demo-consumer
          servicePort: 8080

应用资源配置清单：

# kubectl apply -f http://k8s-yaml.od.com/dubbo-consumer/dp.yaml
# kubectl apply -f http://k8s-yaml.od.com/dubbo-consumer/svc.yaml
# kubectl apply -f http://k8s-yaml.od.com/dubbo-consumer/ingress.yaml

# kubectl get pod -n app

 查看log，是否启动成功：

# kubectl logs dubbo-demo-consumer-f8d5f5f74-dgmqd -n app

检查dubbo-monitor是否已经注册成功：

添加个dns解析，来验证：

# vi /var/named/od.com.zone

# systemctl restart named

 浏览器访问http://demo.od.com/hello?name=slim

 接下来我们模拟升级发版，我们提前修改了代码，并提交到了git仓库，发版的前提是使用jenkins提前构建了镜像并且上传到了我们的私有harbor仓库中，具体的构建流程不在赘述，只需要将远程git仓库的版本修改后构建就行了。

修改dp.yaml资源配置清单，修改harbor镜像仓库中对应的tag版本：

# vi dp.yaml

 应用修改后的资源配置清单，当然也可以在dashboard中进行在线修改：

# kubectl apply -f http://k8s-yaml.od.com/dubbo-consumer/dp.yaml

 已经启动起来了，使用浏览器验证：http://demo.od.com/hello?name=slim

至此，我们一套完成的dubbo服务就已经交付到k8s集群当中了，并且也演示了如何发版。