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k8s学习-CKA真题-七层负载均衡Ingress


目录

  • ​​题目​​
  • ​​分析​​
  • ​​命令​​
  • ​​环境搭建​​
  • ​​解题​​
  • ​​结果​​
  • ​​参考​​

题目

k8s学习-CKA真题-七层负载均衡Ingress_学习

分析

在ing-internal 命名空间下创建一个ingress,名字为pong,代理的service hi,端口为5678,配置路径/hi。
验证:访问curl -kL <INTERNAL_IP>/hi会返回hi

命令

环境搭建

这里就以一个nginx服务为例

创建命名空间

kubectl create ns ing-internal

deploy-hi.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
name: nginx-hi
labels:
app: nginx
spec:
replicas: 1
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: nginx
image: nginx:1.14.2
ports:
- containerPort: 80
name: http

创建deployment

kubectl create -f deploy-hi.yaml -n ing-internal

service-hi.yaml

apiVersion: v1
kind: Service
metadata:
labels:
app: nginx
name: hi
spec:
ports:
- port: 80
protocol: TCP
targetPort: http
selector:
app: nginx
sessionAffinity: None
type: NodePort

创建service hi

kubectl create -f service-hi.yaml -n ing-internal

写入hi到/hi路径

cd /usr/share/nginx/html && mkdir hi && echo "hi" > hi/index.html

解题

由于测试环境端口是80,所以下面的不是题目对应的答案
ingress-hi.yaml

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: pong
namespace: ing-internal
spec:
rules:
- http:
paths:
- path: /hi
pathType: Prefix
backend:
service:
name: hi
port:
number: 80

命令

kubectl create -f ingress-hi.yaml

题目对应答案如下:

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: pong
namespace: ing-internal
spec:
rules:
- http:
paths:
- path: /hi
pathType: Prefix
backend:
service:
name: hi
port:
number: 5678

结果

创建deploy 及 service截图如下:

k8s学习-CKA真题-七层负载均衡Ingress_学习_02


配置hi路径截图如下:

k8s学习-CKA真题-七层负载均衡Ingress_nginx_03


配置好ingress后验证截图如下:

k8s学习-CKA真题-七层负载均衡Ingress_kubernetes_04

参考

​​k8s学习-Ingress(安装、模板、创建、删除)​​​k8s - ingress​​


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