安装ingress-ngin v1.1.0版本并测试是否成功

前言：不要盲目追新，不要盲目追新，不要盲目追新。这几天ingress安装不下就是因为新版本我下载不下来最新的镜像，并且这类新版本的安装内容也找不到借鉴的。

ingress-nginx版本

• 查看自己的k8s安装对应的ingress：https://github.com/kubernetes/ingress-nginx
• 我安装的是最新版的

安装方法

下载yaml文件

• wget https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v1.1.0/deploy/static/provider/baremetal/deploy.yaml

• yaml默认是deployment部署方式

# 下载yaml
wget https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v1.1.0/deploy/static/provider/baremetal/deploy.yaml
# 修改文件名
mv deploy.yaml ingress-nginx-v1.1.0.yaml
# 修改镜像
[root@k8s-master-1 tmp]# grep "image: *" deploy.yaml 
          image: k8s.gcr.io/ingress-nginx/controller:v1.0.5@sha256:55a1fcda5b7657c372515fe402c3e39ad93aa59f6e4378e82acd99912fe6028d
          image: k8s.gcr.io/ingress-nginx/kube-webhook-certgen:v1.1.1@sha256:64d8c73dca984af206adf9d6d7e46aa550362b1d7a01f3a0a91b20cc67868660
          image: k8s.gcr.io/ingress-nginx/kube-webhook-certgen:v1.1.1@sha256:64d8c73dca984af206adf9d6d7e46aa550362b1d7a01f3a0a91b20cc67868660
# 修改为下面的
[root@k8s-master-1 ~]# grep "image: *" ingress-nginx-v1.1.0.yaml
          image: liangjw/ingress-nginx-controller:v1.1.0
          image: liangjw/kube-webhook-certgen:v1.1.1
          image: liangjw/kube-webhook-certgen:v1.1.1
[root@k8s-master-1 tmp]# kubectl  apply -f ingress-nginx-v1.1.0.yaml 
# 下面表示安装成功
[root@k8s-master-1 tmp]# kubectl get pods -n ingress-nginx -o wide --watch
NAME                                       READY   STATUS      RESTARTS   AGE   IP            NODE                   NOMINATED NODE   READINESS GATES
ingress-nginx-admission-create--1-hkkcj    0/1     Completed   0          15m   10.244.3.46   k8s-node-11.host.com   <none>           <none>
ingress-nginx-admission-patch--1-kj6bc     0/1     Completed   1          15m   10.244.3.45   k8s-node-11.host.com   <none>           <none>
ingress-nginx-controller-6fb6b646f-jgttm   1/1     Running     0          15m   10.244.3.47   k8s-node-11.host.com   <none>           <none>

• 这里我要提一下，由于某些原因下载不了ingress默认镜像，所以我去dockerhub上找了，还真找到了，感谢这位大兄弟

测试ingress是否有用

• 参考B站视频https://www.yuque.com/leifengyang/oncloud/ctiwgo

• 这里ingress-nginx是NodePort模式，所以直接占用node2个端口，分别是80:32715/TCP,443:30691/TCP，也就是访问node:32715就能转发到ingress-nginx 80端口，访问node:30691就能转发到ingress-nginx 443端口

[root@k8s-node-11 data]# k get pods,svc -n ingress-nginx
NAME                                           READY   STATUS      RESTARTS   AGE
pod/ingress-nginx-admission-create--1-hkkcj    0/1     Completed   0          29h
pod/ingress-nginx-admission-patch--1-kj6bc     0/1     Completed   1          29h
pod/ingress-nginx-controller-6fb6b646f-jgttm   1/1     Running     0          29h

NAME                                         TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)                      AGE
service/ingress-nginx-controller             NodePort    172.17.11.31   <none>        80:32715/TCP,443:30691/TCP   29h
service/ingress-nginx-controller-admission   ClusterIP   172.17.29.61   <none>        443/TCP                      29h

• 部署一个hello world并使用ingress-nginx

apiVersion: apps/v1
kind: Deployment
metadata:
  name: hello-server
spec:
  replicas: 2
  selector:
    matchLabels:
      app: hello-server
  template:
    metadata:
      labels:
        app: hello-server
    spec:
      containers:
      - name: hello-server
        image: registry.cn-hangzhou.aliyuncs.com/lfy_k8s_images/hello-server
        ports:
        - containerPort: 9000
---
apiVersion: v1
kind: Service
metadata:
  labels:
    app: hello-server
  name: hello-server
spec:
  selector:
    app: hello-server
  ports:
  - port: 8000
    protocol: TCP
    targetPort: 9000

• 部署

[root@k8s-master-1 test]# k apply -f hello-world-dp.yaml 
deployment.apps/hello-server unchanged
service/hello-server unchanged
# 查看是否跑起来了
[root@k8s-master-1 test]# k get pods,svc |grep hello
pod/hello-server-6cbb679d85-bfrw2    1/1     Running   0              22h
pod/hello-server-6cbb679d85-j7rnv    1/1     Running   0              22h
service/hello-server            ClusterIP   172.17.222.237   <none>        8000/TCP       22h
# 直接访问ip，输出Hello World!表示没有问题
[root@k8s-master-1 test]# curl 172.17.222.237:8000
Hello World!

# 

• 部署ingress配置

apiVersion: networking.k8s.io/v1
kind: Ingress  
metadata:
  name: hello-world-ingress
spec:
  ingressClassName: nginx
  rules:
  - host: "hello.home.com"
    http:
      paths:
      - pathType: Prefix
        path: "/hello"
        backend:
          service:
            name: hello-server
            port:
              number: 8000

• 检查ingres

[root@k8s-master-1 test]# vim hello-world-ingress-rule1.yaml 
[root@k8s-master-1 test]# k apply -f hello-world-ingress-rule1.yaml 
ingress.networking.k8s.io/hello-world-ingress created
[root@k8s-master-1 test]# k get ingress |grep hello
hello-world-ingress   nginx   hello.home.com                       10.4.7.11   80      41s

• 配置本地hosts或者路由器的hosts，并访问域名
  • 注意10.4.7.12是你的node节点ip，master节点ip也可以