k8s资源之endpoint &event

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 目前刚开始写一个月，一共写了18篇原创文章，文章目录如下：

istio多集群探秘，部署了50次多集群后我得出的结论

istio多集群链路追踪，附实操视频

istio防故障利器，你知道几个,istio新手不要读，太难！

istio业务权限控制，原来可以这么玩

istio实现非侵入压缩，微服务之间如何实现压缩

不懂envoyfilter也敢说精通istio系列-http-rbac-不要只会用AuthorizationPolicy配置权限

不懂envoyfilter也敢说精通istio系列-02-http-corsFilter-不要只会vs

不懂envoyfilter也敢说精通istio系列-03-http-csrf filter-再也不用再代码里写csrf逻辑了

不懂envoyfilter也敢说精通istio系列http-jwt_authn-不要只会RequestAuthorization

不懂envoyfilter也敢说精通istio系列-05-fault-filter-故障注入不止是vs

不懂envoyfilter也敢说精通istio系列-06-http-match-配置路由不只是vs

不懂envoyfilter也敢说精通istio系列-07-负载均衡配置不止是dr

不懂envoyfilter也敢说精通istio系列-08-连接池和断路器

不懂envoyfilter也敢说精通istio系列-09-http-route filter

不懂envoyfilter也敢说精通istio系列-network filter-redis proxy

不懂envoyfilter也敢说精通istio系列-network filter-HttpConnectionManager

不懂envoyfilter也敢说精通istio系列-ratelimit-istio ratelimit完全手册

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Endpoint:

•endpoint是k8s集群中的一个资源对象，存储在etcd中，用来记录一个service对应的所有pod的访问地址。

自动endpoint:

[root@master01 svc]# cat ./*
apiVersion: v1
kind: Pod
metadata:
  name: nginx-01
  labels:
    app: nginx
spec:
  containers:
  - name: nginx
    image: nginx
    ports:
    - containerPort: 80        

apiVersion: v1
kind: Pod
metadata:
  name: nginx-02
  labels:
    app: nginx
spec:
  containers:
  - name: nginx
    image: nginx
    ports:
    - containerPort: 80        

apiVersion: v1
kind: Pod
metadata:
  name: nginx-03
  labels:
    app: nginx
spec:
  containers:
  - name: nginx
    image: nginx
    ports:
    - containerPort: 80        

apiVersion: v1
kind: Service
metadata:
  name: nginx-clusterip-svc
spec:
 selector:  
   app: nginx
 type: ClusterIP
 ports:
 -  name: http
    port: 8000      
    targetPort: 80

[root@master01 svc]# kubectl get endpoints  nginx-clusterip-svc -ntest -o yaml
apiVersion: v1
kind: Endpoints
metadata:
  annotations:
    endpoints.kubernetes.io/last-change-trigger-time: "2020-01-16T11:10:26+08:00"
  creationTimestamp: "2020-01-16T03:10:16Z"
  name: nginx-clusterip-svc
  namespace: test
  resourceVersion: "61585"
  selfLink: /api/v1/namespaces/test/endpoints/nginx-clusterip-svc
  uid: 09bad5a7-b858-4438-978b-57b9a8c5a787
subsets:
- addresses:
  - ip: 172.20.0.14
    nodeName: 192.168.198.155
    targetRef:
      kind: Pod
      name: nginx-03
      namespace: test
      resourceVersion: "61576"
      uid: be10871d-4744-4764-aaa7-70770d307806
  - ip: 172.20.1.21
    nodeName: 192.168.198.154
    targetRef:
      kind: Pod
      name: nginx-02
      namespace: test
      resourceVersion: "61582"
      uid: 62856668-e432-4669-b76b-ab401392e0ec
  - ip: 172.20.2.26
    nodeName: 192.168.198.156
    targetRef:
      kind: Pod
      name: nginx-01
      namespace: test
      resourceVersion: "61584"
      uid: b5115eed-3fb5-4101-8645-1023b3cd806e
  ports:
  - name: http
    port: 80
    protocol: TCP

手动endpoint:

[root@master01 external]# cat ./*
kind: Endpoints
apiVersion: v1
metadata:
  name: mysql-svc
subsets:
  - addresses:
    - ip: 192.168.198.156
    ports:
    - port: 3306
apiVersion: v1
kind: Pod
metadata:
  name: mysql
  labels:
    app: mysql
spec:
  containers: 
  - name: mysql 
    image: mysql:5.6 
    ports:
    - containerPort: 3306 
    env:  
    - name: MYSQL_ROOT_PASSWORD
      value: '123456'
apiVersion: v1
kind: Service
metadata:
  name: mysql-svc
spec:
  ports:
  - port: 3306

event:

•K8s集群中发生的各种事件

kubectl get event -ntest

kubectl get event -ntest -owide

kubectl get event nginx-01.15ea3f4c73c5c11b -ntest -o yaml

kubectl edit event nginx-01.15ea3f4c73c5c11b -ntest

kubectl delete event nginx-01.15ea3f4c73c5c11b -ntest

kubectl label event nginx-01.15ea3f4d688a650f -ntest  testlabe=test

kubectl annotate event nginx-01.15ea3f4d688a650f -ntest  testlabe=test