部署ingress及使用

一、下载yaml文件
https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/deploy/static/mandatory.yaml
# 国内需要修改镜像



#修改amndatory.yaml文件（211行）使用宿主机网络：hostNetwork: true
    serviceAccountName: nginx-ingress-serviceaccount
    hostNetwork: true  #添加这行
    containers:

二、导入yaml文件
kubectl  apply -f mandatory.yaml 

#查看
[root@k8s-m yaml]# kubectl  get pods -n ingress-nginx
NAME                                        READY   STATUS    RESTARTS   AGE
nginx-ingress-controller-766c77b7d4-nn4c7   1/1     Running   0          49s

三、# 创建一个基于service和Deployment

 [root@k8s-m yaml]# cat   ingress-deploy-demo.yaml
apiVersion: v1
kind: Service
metadata:
  name: nginx-svc
spec:
  selector: #标签选择
    name: nginx
  ports:
  - port: 80 #服务器端口
    name: http #名称
    targetPort: 80 #容器端口
    protocol: TCP #协议,默认TCP

---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: my-nginx-deploy
spec:
  replicas: 3
  selector: 
    matchLabels:
      name: nginx
  template:
    metadata:
      labels:
        name: nginx 
    spec:
      containers: 
      - name: nginx
        image: nginx:alpine #镜像
        ports:
        - name: http
          containerPort: 80 #容器端口


#导入yaml文件
[root@k8s-m yaml]# kubectl apply -f   ingress-deploy-demo.yaml
service/nginx-svc unchanged
deployment.apps/my-nginx-deploy created

#查看
[root@k8s-m yaml]# kubectl  get pods
NAME                               READY   STATUS    RESTARTS   AGE
my-nginx-deploy-799879696c-7rlhl   1/1     Running   0          41s
my-nginx-deploy-799879696c-99v5g   1/1     Running   0          41s
my-nginx-deploy-799879696c-ljqjd   1/1     Running   0          41s
[root@k8s-m yaml]# kubectl  get svc 
NAME         TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)   AGE
kubernetes   ClusterIP   10.96.0.1      <none>        443/TCP   44m
nginx-svc    ClusterIP   10.96.182.50   <none>        80/TCP    3m43s

# 创建一个 基于 my-nginx-deploy的 ingress
[root@k8s-m yaml]# cat nginx-ingress.yaml 
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: ingress-nginx
spec:
  rules:
  - host: haha.zhang.com
    http:
      paths:
      - backend:
          serviceName: nginx-svc
          servicePort: 80

#查看
[root@k8s-m yaml]# kubectl  get ingress
NAME            HOSTS            ADDRESS   PORTS   AGE
ingress-nginx   haha.zhang.com             80      21s
#测试
[root@k8s-m yaml]# curl  haha.zhang.com -I
HTTP/1.1 200 OK
Server: nginx
Date: Thu, 20 Dec 2018 07:01:18 GMT
Content-Type: text/html
Connection: keep-alive
Keep-Alive: timeout=20
X-DIS-Request-ID: e21475c0d2fa20399819dbb15f21304a
P3P: CP="NON DSP COR ADMa OUR IND UNI COM NAV INT"
Cache-Control: no-cache

　　

HTTPS

[root@k8s-m yaml]# cat ssl-www.yaml 
apiVersion: v1
kind: Service
metadata:
  name: ssl-www
  namespace: default
spec:
  selector:
    app: myhttps
  ports:
  - name: http
    targetPort: 80
    port: 80
  - name: https
    targetPort: 443
    port: 443
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: myapp-deploy
  namespace: default
spec:
  replicas: 3
  selector:
    matchLabels:
      app: myhttps
  template:
    metadata:
      labels:
        app: myhttps
    spec:
      containers:
      - name: myhttps
        image: nginx:alpine
        ports:
        - name: http
          containerPort: 80
        - name: https
          containerPort: 443
#导入
kubectl  apply -f ssl-www.yaml
二、创建ssl的证书
# 创建一个基于自身域名的证书
openssl req -x509 -nodes -days 3650 -newkey rsa:2048 -keyout hahassl.zhang.me-key.key -out hahassl.zhang.me.pem -subj "/CN=hahassl.zhang.me"
 
 
# 导入 域名的证书到secret 中
kubectl create secret tls hahassl-secret  --cert hahassl.zhang.me.pem --key hahassl.zhang.me-key.key
#查看
[root@k8s-m x2]# kubectl  get secret -n kube-system|grep haha
hahassl-secret                                   kubernetes.io/tls                     2      42s
#配置https的ingress
[root@k8s-m yaml]# cat https-ingress.yaml 
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: https-www
spec:
  tls:
  - hosts:
    - hahassl.zhang.me
    secretName: hahassl-secret
  rules:
  - host: hahassl.zhang.me
    http:
      paths:
      - path: /
        backend:
          serviceName: ssl-www 
          servicePort: 443
        backend:
          serviceName: ssl-www
          servicePort: 80
#导入
 kubectl apply -f   https-ingress.yaml 

#配置hosts解析（解析为宿主机的公网ip）

#访问
[root@k8s-m yaml]# curl -k -I https://hahassl.zhang.me
HTTP/1.1 200 OK
Server: nginx/1.15.6
Date: Sat, 29 Dec 2018 05:48:00 GMT
Content-Type: text/html
Content-Length: 612
Connection: keep-alive
Vary: Accept-Encoding
Last-Modified: Wed, 26 Dec 2018 23:21:49 GMT
ETag: "5c240d0d-264"
Accept-Ranges: bytes
Strict-Transport-Security: max-age=15724800; includeSubDomains

#浏览器访问