ingress-nginx安装

##我用的是0.15.0版本的，己住千万不要用最新版本，太xx坑比了！！！

一：下载ingress包

链接：https://pan.baidu.com/s/1HbcJdCALntA9xDFJQF3Tkg
提取码：htu8 

[root@master ~]# tar xf ingress-nginx-nginx-0.15.0.tar.gz
[root@master ~]# cd ingress-nginx-nginx-0.15.0
[root@master ingress-nginx-nginx-0.15.0]# cd deploy/ 
[root@master deploy]# ls
configmap.yaml namespace.yaml publish-service-patch.yaml README.md udp-services-configmap.yaml with-rbac.yaml default-backend.yaml provider rbac.yaml tcp-services-configmap.yaml without-rbac.yaml 
[root@hd01 deploy]#

[root@master deploy]# kubectl apply -f ./
[root@master deploy]# kubectl provider/baremetal/service-nodeport.yaml

等带节点下载完镜像后

##当镜像下载完启动完毕后，会看到这样的结果

[root@master deploy]# kubectl get svc -n ingress-nginx
NAME                   TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)                      AGE
default-http-backend   ClusterIP   10.98.147.56     <none>        80/TCP                       20h
ingress-nginx          NodePort    10.101.121.183   <none>        80:31502/TCP,443:31061/TCP   135m
[root@master deploy]# kubectl get pod -n ingress-nginx
NAME                                        READY   STATUS    RESTARTS   AGE
default-http-backend-5d4f569658-zhhn4       1/1     Running   0          20h
nginx-ingress-controller-54b8f8d8cd-5bj65   1/1     Running   0          20h
[root@master deploy]# 

此时我们的ingress-nginx已经安装好了，下面我们来做一个测试

建立yaml文件生成pod及serviece

[root@master ingress]# cat svc-pod.yaml 
apiVersion: v1
kind: Service
metadata:
        name: myapp
        namespace: default
spec:
        selector:
                app: myapp
                release: canary
        ports:
        - name: http
          targetPort: 80
          port: 80

---
apiVersion: apps/v1
kind: Deployment
metadata:
        name: myapp-deploy
        namespace: default
spec:
        replicas: 3
        selector: 
                matchLabels:    
                        app: myapp
                        release: canary
        template:       
                metadata:
                        labels: 
                                app: myapp
                                release: canary
                spec:
                        containers:     
                        - name: myapp
                          image: ikubernetes/myapp:v2
                          ports:
                          - name: http
                            containerPort: 80
##建立一个ingerss的文件
[root@master ingress]# cat ingress-myapp.yaml 
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: ingress-myapp
  namespace: default
  annotations:
    kubernetes.io/ingress.class: "nginx"
spec:
  rules:
  - host: myapp.magedu.com
    http:
      paths:
      - path: 
        backend:
          serviceName: myapp
          servicePort: 80

[root@master ingress]# kubectl apply -f svc-pod.yaml 
[root@master ingress]# kubectl apply -f ingress-myapp.yaml 
[root@master ingress]# kubectl get svc
NAME         TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)   AGE
kubernetes   ClusterIP   10.96.0.1       <none>        443/TCP   15d
myapp        ClusterIP   10.105.80.232   <none>        80/TCP    138m
[root@master ingress]# kubectl get pod
NAME                            READY   STATUS    RESTARTS   AGE
myapp-deploy-6b56d98b6b-7shgg   1/1     Running   0          138m
myapp-deploy-6b56d98b6b-9zx5h   1/1     Running   0          138m
myapp-deploy-6b56d98b6b-ftcxc   1/1     Running   0          138m
[root@master ingress]# 

[root@hd01 ingress]# kubectl get pod -n ingress-nginx
NAME                                        READY   STATUS    RESTARTS   AGE
default-http-backend-5d4f569658-zhhn4       1/1     Running   0          20h
nginx-ingress-controller-54b8f8d8cd-5bj65   1/1     Running   0          20h
[root@hd01 ingress]# kubectl exec -n ingress-nginx -it nginx-ingress-controller-54b8f8d8cd-5bj65 -- /bin/sh
# ce /
/bin/sh: 1: ce: not found
# cd /etc/nginx
# ls
fastcgi.conf          fastcgi_params.default  koi-win      mime.types.default  nginx.conf         scgi_params      uwsgi_params
fastcgi.conf.default  geoip              lua      modsecurity          nginx.conf.default     scgi_params.default  uwsgi_params.default
fastcgi_params          koi-utf              mime.types  modules          owasp-modsecurity-crs  template          win-utf
# cat nginx.conf

---
    upstream default-myapp-80 {
        least_conn;
        
        keepalive 32;
        
        server 10.244.2.54:80 max_fails=0 fail_timeout=0;
        server 10.244.1.49:80 max_fails=0 fail_timeout=0;
        server 10.244.1.48:80 max_fails=0 fail_timeout=0;
        
    }


---

    ## start server myapp.magedu.com
    server {
        server_name myapp.magedu.com ;
        
        listen 80;
        
        listen [::]:80;
        
        set $proxy_upstream_name "-";
        
        location / {
            
            log_by_lua_block {
                
            }
            
            port_in_redirect off;
            
            set $proxy_upstream_name "default-myapp-80";
            
            set $namespace      "default";
            set $ingress_name   "ingress-myapp";
            set $service_name   "myapp";

此时我们就可以通过外部浏览器访问域名访问了

首先我们在windows上做好本地的地址解析《hosts》