安装ingress-nginx
参照这个网站： Installation Guide - NGINX Ingress Controller (kubernetes.github.io)
kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v1.1.1/deploy/static/provider/cloud/deploy.yaml
我使用的是 with kubectl apply, using YAML manifests; 使用yaml的方式部署
注意在线的方式部署，需要将yaml中的image先down下来。如果down不下来，可以使用国内的一些镜像仓库
准备容器主要是学习B站上黑马的课程中的文件
Kubernetes(K8S) 入门进阶实战完整教程，黑马程序员K8S全套教程（基础+高级）_哔哩哔哩_bilibili
创建tomcat-nginx.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: nginx-deployment
namespace: dev
spec:
replicas: 3
selector:
matchLabels:
app: nginx-pod
template:
metadata:
labels:
app: nginx-pod
spec:
containers:
- name: nginx
image: nginx:1.17.1
ports:
- containerPort: 80
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: tomcat-deployment
namespace: dev
spec:
replicas: 3
selector:
matchLabels:
app: tomcat-pod
template:
metadata:
labels:
app: tomcat-pod
spec:
containers:
- name: tomcat
image: tomcat:8.5-jre10-slim
ports:
- containerPort: 8080
---
apiVersion: v1
kind: Service
metadata:
name: nginx-service
namespace: dev
spec:
selector:
app: nginx-pod
clusterIP: None
type: ClusterIP
ports:
- port: 80
targetPort: 80
---
apiVersion: v1
kind: Service
metadata:
name: tomcat-service
namespace: dev
spec:
selector:
app: tomcat-pod
clusterIP: None
type: ClusterIP
ports:
- port: 8080
targetPort: 8080
# 创建
[root@master ~]# kubectl create -f tomcat-nginx.yaml
# 查看
[root@master ~]# kubectl get svc -n dev
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
nginx-service ClusterIP None <none> 80/TCP 48s
tomcat-service ClusterIP None <none> 8080/TCP 48s
Http代理
创建ingress-http.yaml
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: ingress-http
namespace: dev
spec:
rules:
- host: nginx.itheima.com
http:
paths:
- path: /
backend:
serviceName: nginx-service
servicePort: 80
- host: tomcat.itheima.com
http:
paths:
- path: /
backend:
serviceName: tomcat-service
servicePort: 8080
问题： 通过上述配置好之后，通过浏览器，不能访问？
image.png
开始分析问题
- 检查 ingress 服务
kubectl get service -n ingress-nginx
image.png
- 检查ingress 的pod信息
kubectl get pods -n ingress-nginx
image.png
- 检查应用服务，主要工作空间
kubectl get service -n dev
image.png
- 检查应用的pod
kubectl get pods -n dev -o wide
image.png
-
验证容器服务的正确性
image.png
通过ingress service来查看NGINX也是正常的，不知道哪里问
image.png
最后在一个b站的视频上看到，要把这个配置给注释掉，也就是去掉，问题解决.
externalTrafficPolicy: Local
