K8S-Server实现简单灰度发布

K8S-Server实现简单灰度发布

直接上yaml文件

---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: nginx-group1
  labels:
    app: nginx
spec:
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx:1.17.0-alpine
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: nginx-group2
  labels:
    app: nginx
spec:
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx:1.17.0-alpine
---
apiVersion: v1
kind: Service
metadata:
  name: nginx
  labels:
    app: nginx
spec:
  ports:
  - port: 80
    name: http
    targetPort: 80
  selector:
    app: nginx
  type: NodePort

service会通过selector里面的值去匹配pod里的lables值。

在启动的nginx里面写入不同的index.html文件。 然后通过nodeport访问。会发现访问在变化。

具体调度算法是根据搭建k8s集群时配置的kube-proxy 参数。 如果没配置默认是 RR 方式。

参考：https://blog.csdn.net/qq_42150559/article/details/97143825