1、EndPoints

控制管理pod,收录Pod。
创建Service，实际会创建一个同名的Endpoints。
​
Service只负责提供一个VIP，EndPoints才是提供负载均衡服务的。
​
将外部的服务接入集群：
---
kind: Endpoints
apiVersion: v1
metadata:
  name: mysql
subsets:
  - addresses:
      - ip: 192.168.11.101
    ports:
      - port: 33060
---
kind: Service
apiVersion: v1
metadata:
  name: mysql
spec:
  ports:
    - port: 3306
      targetPort: 33060
 [root@k8s-master-01 ~]# vim mysqld.yaml 
[root@k8s-master-01 ~]# kubectl apply -f mysqld.yaml 
[root@k8s-master-01 k8s]# kubectl get svc
NAME         TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)    AGE
mysql        ClusterIP   10.103.53.10   <none>        3306/TCP   11m
  [root@k8s-master-01 k8s]# kubectl get pods -A
      mysql         mysql-c5549fb5-khhs4          1/1     Running            0          10h
  [root@k8s-master-01 k8s]# kubectl exec -it -n mysql mysql-c5549fb5-khhs4
  root@mysql-c5549fb5-khhs4:/# mysql -uroot -p123456 -h mysql.default.svc.cluster.local
  mysql> create database bbs444;

2、Ingress

https://kubernetes.github.io/ingress-nginx/user-guide/nginx-configuration/annotations/#permanent-redirect-code

[root@k8s-master-01 k8s]# vim deploy.yaml
[root@k8s-master-01 k8s]# cat deploy.yaml |grep image
          image: registry.cn-hangzhou.aliyuncs.com/k8sos/ingress-controller:v0.45.0
          imagePullPolicy: IfNotPresent
          image: docker.io/jettech/kube-webhook-certgen:v1.5.1
          imagePullPolicy: IfNotPresent
          image: docker.io/jettech/kube-webhook-certgen:v1.5.1
          imagePullPolicy: IfNotPresent
[root@k8s-master-01 k8s]# kubectl apply -f deploy.yaml
[root@k8s-master-01 k8s]# kubectl get pods -n ingress-nginx
NAME                                        READY   STATUS      RESTARTS   AGE
ingress-nginx-admission-create-kxj4w        0/1     Completed   0          2m29s
ingress-nginx-admission-patch-6wzrn         0/1     Completed   0          2m29s
ingress-nginx-controller-66bb86f576-rdjr2   1/1     Running     0          2m29s
出现上面的1/1代表部署安装成功

 

 

Ingress
    Nginx Ingress 
    #部署域名
[root@k8s-master-01 k8s]# vim ingress.yaml
---
kind: Ingress
apiVersion: extensions/v1beta1
metadata:
  name: django
spec:
  rules:
    - host: www.django.com
      http:
        paths:
          - backend:
              serviceName: django
              servicePort: 80
            path: /
   [root@k8s-master-01 k8s]# kubectl apply -f ingress.yaml 
   [root@k8s-master-01 k8s]# kubectl get ingress
NAME     CLASS    HOSTS            ADDRESS          PORTS   AGE
django   <none>   www.django.com   192.168.15.104   80      4m11s
[root@k8s-master-01 k8s]# kubectl get svc -n ingress-nginx
NAME                                 TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)                      AGE
ingress-nginx-controller             NodePort    10.97.151.84     <none>        80:30769/TCP,443:30885/TCP   23m
ingress-nginx-controller-admission   ClusterIP   10.110.245.119   <none>        443/TCP 
#解析域名
192.168.15.101 www.django.com
www.django.com：30769 可访问
#进入查看底层原理
[root@k8s-master-01 k8s]# kubectl exec -it -n ingress-nginx ingress-nginx-controller-66bb86f576-rdjr2 -- bash
bash-5.1$ vi /etc/nginx/nginx.conf
​
#rewrite重定向
---
kind: Ingress
apiVersion: networking.k8s.io/v1
metadata:
  name: django
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: www.baidu.com
    nginx.ingress.kubernetes.io/temporal-redirect: https://www.google.com
spec:
  rules:
    - host: www.django.com
      http:
        paths:
          - backend:
              serviceName: django
              servicePort: 80
              path: /
​
   
# 错误之后，默认跳转的后端
[root@k8s-master-01 k8s]# vim error.yaml
[root@k8s-master-01 k8s]# kubectl apply -f error.yaml
---
kind: Deployment
apiVersion: apps/v1
metadata:
  name: error
spec:
  selector:
    matchLabels:
      app: error
  template:
    metadata:
      labels:
        app: error
    spec:
      containers:
        - name: tomcat
          image: tomcat
---
kind: Service
apiVersion: v1
metadata:
  name: error
spec:
  selector:
    app: error
  ports:
    - port: 80
      targetPort: 8080
​
#1.错误监听
nginx.ingress.kubernetes.io/custom-http-errors: "404,415,500,502"
#2.定义一个错误的后端
nginx.ingress.kubernetes.io/default-backend: error
​
# 永久性重定向
nginx.ingress.kubernetes.io/permanent-redirect: https://www.baidu.com
​
# 最大链接数
nginx.ingress.kubernetes.io/global-rate-limit: 1
​
# 白名单
nginx.ingress.kubernetes.io/whitelist-source-range: 192.168.11.102
​
# 自定义配置（配置片段）
nginx.ingress.kubernetes.io/configuration-snippet: |
    deny 192.168.102;
    allow all;
​

3、DaemonSet

每一个节点上都只部署一个Pod（node节点上部署，master上没有因为master节点上不允许调度）
​
主要用于收集日志
监控
​
---
kind: DaemonSet
apiVersion: apps/v1
metadata:
  name: daemonset
spec:
  selector:
    matchLabels:
      app: daemonset
  template:
    metadata:
      labels:
        app: daemonset
    spec:
      containers:
        - name: nginx
          image: nginx
[root@k8s-master-01 k8s]# kubectl set image daemonset/daemonset nginx=nginx:1.19
daemonset.apps/daemonset image updated
[root@k8s-master-01 k8s]# kubectl get pods -o wide
#daemonset支持更新，但是不支持扩容
[root@k8s-master-01 k8s]# kubectl set image daemonset/daemonset nginx=nginx:1.9
daemonset.apps/daemonset image updated
​

4、StatefulSet

有状态集合。启动有顺序，而deployment是无状态的
​
是用在有状态的架构之中。
必须依赖于service才能创建的控制器，因为statefulset的网络是统一管理的，之前pod与pod之间网络是分开的，现在不是分开的，它是由service来统一管理的
​
MySQL
​
---
kind: Service
apiVersion: v1
metadata:
  name: statefulset
spec:
  selector:
    app: statefulset
  ports:
    - port: 80
      targetPort: 80
---
kind: StatefulSet
apiVersion: apps/v1
metadata:
  name: statefulset
spec:
  replicas: 5
  selector:
    matchLabels:
      app: statefulset
  serviceName: statefulset
  template:
    metadata:
      labels:
        app: statefulset
    spec:
      containers:
        - name: nginx
          image: nginx
[root@k8s-master-01 k8s]# vim statufulset.yaml
[root@k8s-master-01 k8s]# kubectl apply -f statufulset.yaml 
service/statefulset created
statefulset.apps/statefulset created
[root@k8s-master-01 k8s]# kubectl get pods -o wide 
#会按顺序启动
#更新镜像会按顺序更新，避免了网络混乱
[root@k8s-master-01 k8s]#  kubectl set image statefulset/statefulset nginx=nginx:1.9

5、Job

只执行一次。
---
kind: Job
apiVersion: batch/v1
metadata:
  name: job
spec:
  template:
    metadata:
      labels:
        app: job
    spec:
      restartPolicy: OnFailure
      containers:
        - name: mysql
          image: mysql:5.7
          command:
            - "/bin/sh"
            - "-c"
            - "mysql -uroot -hmysql.mysql.svc.cluster.local -p123456 -e 'select sleep(20);'"
​
​

6、cronJob

定时执行Job
​
---
kind: CronJob
apiVersion: batch/v1beta1
metadata:
  name: cronjob
spec:
  jobTemplate:
    metadata:
      labels:
        app: cronjob
    spec:
      template:
        metadata:
          labels:
            app: cronjob
        spec:
          restartPolicy: OnFailure
          containers:
            - name: mysql
              image: mysql:5.7
              command:
                - "/bin/sh"
                - "-c"
                - "mysql -uroot -hmysql.mysql.svc.cluster.local -p123456 -e 'select sleep(20);'"
  schedule: '* * * * *'
​