http://域名 访问ipquery

目标： 通过apply创建了 ipquery 对应的deployment，它具有4个副本。通过get pods 可以查询4个副本的状态。 并且通过ingress实现http域名访问ipquery

(1) 前置条件

DNS域名服务指向其中一台节点服务器 queryip.michaelapp.com 指向节点服务器

并且安装了Nginx Ingress Controller

(2) 创建deployment声明文件

ipquery-ingress-http.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: ipquery-v1
  labels:
    app: ipquery-v1
spec:
  replicas: 4
  selector:
    matchLabels:
      app: ipquery-v1
  template:
    metadata:
      labels:
        app: ipquery-v1
    spec:
      containers:
      - name: ipquery-k8s
        image: lorahz/ipquery:1.10
---
apiVersion: v1
kind: Service
metadata:
  name: ipquery-v1
  labels:
    app: ipquery-v1
spec:
  selector:
    app: ipquery-v1
  ports:
  - name: ipquery-v1
    protocol: TCP
    port: 9999
    targetPort: 8888
  type: LoadBalancer
  
---
apiVersion: networking.k8s.io/v1beta1
kind: Ingress
metadata:
  name: ipquery-v1
spec:
  rules:                      
  - host: queryip.michaelapp.com
    http:
      paths:                
      - path: /
        backend:
          serviceName: ipquery-v1
          servicePort: 9999

(3) 使用kubctl apply 或者 kubctl create创建deployment


//创建deployment
[root@t1 ipquery]# kubectl apply -f ipquery-ingress-http.yaml
deployment.apps/ipquery-v1 created
service/ipquery-v1 created
ingress.networking.k8s.io/ipquery-v1 created

//查询deployment对应的pods列表
[root@t1 ipquery]# kubectl get svc
NAME         TYPE           CLUSTER-IP    EXTERNAL-IP   PORT(S)          AGE
ipquery-v1   LoadBalancer   10.96.68.39   <pending>     9999:30293/TCP   12s

//查询deployment
[root@t1 ipquery]# kubectl get deployments
NAME               READY   UP-TO-DATE   AVAILABLE   AGE
ipquery-v1         4/4     4            4           3m18s
nginx-deployment   1/1     1            1           20m

(4) 如何访问Pod

浏览器或者curl http://queryip.michaelapp.com/

[root@t1 ipquery]# curl http://queryip.michaelapp.com/
{"result":"Welcome Michal.Pan's IPQuery Server!","status":200,"uuid":"1715dc88-bf2a-4fb9-9f6c-85f49906c2d4"}
[root@t1 ipquery]# curl http://queryip.michaelapp.com/
{"result":"Welcome Michal.Pan's IPQuery Server!","status":200,"uuid":"cf68923a-08e9-44af-b861-8f8728244406"}
[root@t1 ipquery]# curl http://queryip.michaelapp.com/
{"result":"Welcome Michal.Pan's IPQuery Server!","status":200,"uuid":"1eecfa11-d2da-42b0-bc5f-cc0cb88e27cd"}
[root@t1 ipquery]# curl http://queryip.michaelapp.com/
{"result":"Welcome Michal.Pan's IPQuery Server!","status":200,"uuid":"cf68923a-08e9-44af-b861-8f8728244406"}
[root@t1 ipquery]# curl http://queryip.michaelapp.com/
{"result":"Welcome Michal.Pan's IPQuery Server!","status":200,"uuid":"cf68923a-08e9-44af-b861-8f8728244406"}

(5)参考链接

kubernetes-ingress-controller(nginx)

NGINX Ingress Controller