kubernetes 的 ingress 配置部署

kubernetes系列

• 一：kubernetes 的 ingress

一：kubernetes 的 nginx ingress

1.1 ingress-nginx的部署

Ingress-Nginx github 地址：https://github.com/kubernetes/ingress-nginx
Ingress-Nginx 官方网站：https://kubernetes.github.io/ingress-nginx/

部署：
wget https://raw.githubusercontent.com/kubernetes/ingress-nginx/nginx-0.30.0/deploy/static/mandatory.yaml
wget https://raw.githubusercontent.com/kubernetes/ingress-nginx/nginx-0.30.0/deploy/static/provider/baremetal/service-nodeport.yaml
kubectl apply -f mandatory.yaml
kubectl apply -f service-nodeport.yaml
----
所有节点上传ingress-contro.tar 文件
所有节点加载镜像
docker load -i ingree.contro.tar
docker images 
kubectl apply -f mandatory.yaml
kubectl get deploy -n ingress-nginx
kubectl get pod -n ingress-nginx 

如何使用国外机器打包镜像已经下载
先部署docker 
yum install -y yum-utils device-mapper-persistent-data lvm2
yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
yum install docker-ce-18.09.9 docker-ce-cli-18.09.9 containerd.io -y
service docker start
----
docker pull quay.io/kubernetes-ingress-controller/nginx-ingress-controller:0.30.0
docker save -o ingrss.contro.tar quay.io/kubernetes-ingress-controller/nginx-ingress-controller:0.30.0 
tar -zcvf ingrss.contro.tar.gz ingrss.contro.tar
然后 下载 ingrss.contro.tar.gz 即可

部署ingress-nginx的 svc
wget https://raw.githubusercontent.com/kubernetes/ingress-nginx/nginx-0.30.0/deploy/static/provider/baremetal/service-nodeport.yaml
kubectl apply -f service-nodeport.yaml
kubectl get svc -n ingress-nignx

1.2：Ingress HTTP 代理访问

deployment、Service、Ingress Yaml 文件
---
vim svc-deploy.yaml
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: nginx-dm
spec:
  replicas: 2
  template:
    metadata:
      labels:
        name: nginx
    spec:
      containers:
        - name: nginx
          image: wangyanglinux/myapp:v1
          imagePullPolicy: IfNotPresent
          ports:
            - containerPort: 80
---
apiVersion: v1
kind: Service
metadata:
  name: nginx-svc
spec:
  ports:
   - port: 80
     targetPort: 80
     protocol: TCP
  selector:
    name: nginx
---

使用ingress 发布
vim nginx-ingress.yaml
----
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: nginx-test
spec:
  rules:
    - host: node01.flyfish
      http:
        paths:
        - path: /
          backend:
            serviceName: nginx-svc
            servicePort: 80
---
kubectl apply -f nginx-ingress.yaml
kubectl get svc -n ingress-nginx

实现一个虚拟主机

定义deploy1 与svc1 
vim deployment1.yaml
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: deployment1
spec:
  replicas: 2
  template:
    metadata:
      labels:
        name: nginx1
    spec:
      containers:
        - name: nginx1
          image: wangyanglinux/myapp:v1
          imagePullPolicy: IfNotPresent
          ports:
            - containerPort: 80
---
apiVersion: v1
kind: Service
metadata:
  name: svc-1
spec:
  ports:
   - port: 80
     targetPort: 80
     protocol: TCP
  selector:
    name: nginx1
---
kubectl apply -f deployment1.yaml

定义deploy2 与svc2 
vim deployment2.yaml
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: deployment2
spec:
  replicas: 2
  template:
    metadata:
      labels:
        name: nginx2
    spec:
      containers:
        - name: nginx2
          image: wangyanglinux/myapp:v2
          imagePullPolicy: IfNotPresent
          ports:
            - containerPort: 80
---
apiVersion: v1
kind: Service
metadata:
  name: svc-2
spec:
  ports:
   - port: 80
     targetPort: 80
     protocol: TCP
  selector:
    name: nginx2
---
kubectl apply -f deployment2.yaml

定义ingress的nginx 对外连接
vim ingress.yaml
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: ingress1
spec:
  rules:
    - host: www1.flyfish.com
      http:
        paths:
        - path: /
          backend:
            serviceName: svc-1
            servicePort: 80
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: ingress2
spec:
  rules:
    - host: www2.flyfish.com
      http:
        paths:
        - path: /
          backend:
            serviceName: svc-2
            servicePort: 80
---
kubectl apply -f ingress.yaml

测试： 
kubectl get svc 
kubectl get svc -n ingress-nginx

1.3 Ingress HTTPS 代理访问

创建证书，以及 cert 存储方式
openssl req -x509 -sha256 -nodes -days 365 -newkey rsa:2048 -keyout tls.key -out tls.crt -subj "/CN=nginxsvc/O=nginxsvc"
kubectl create secret tls tls-secret --key tls.key --cert tls.crt

deployment、Service、Ingress Yaml 文件
vim deployment3.yaml
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: deployment1
spec:
  replicas: 2
  template:
    metadata:
      labels:
        name: nginx3
    spec:
      containers:
        - name: nginx3
          image: wangyanglinux/myapp:v3
          imagePullPolicy: IfNotPresent
          ports:
            - containerPort: 80
---
apiVersion: v1
kind: Service
metadata:
  name: svc-3
spec:
  ports:
   - port: 80
     targetPort: 80
     protocol: TCP
  selector:
    name: nginx3
---
vim ingress.yaml
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: https
spec:
  tls:
    - hosts:
      - www3.flyfish.com
      secretName: tls-secret
  rules:
    - host: www3.flyfish.com
      http:
        paths:
        - path: /
          backend:
            serviceName: svc-3
            servicePort: 80
---
kubectl apply -f deployment3.yaml
kubectl apply -f ingress.yaml

1.4 Nginx 进行 BasicAuth

yum -y install httpd
htpasswd -c auth foo
kubectl create secret generic basic-auth --from-file=auth
kubectl get secret 

vim deployment4.yaml
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: deployment4
spec:
  replicas: 2
  template:
    metadata:
      labels:
        name: nginx4
    spec:
      containers:
        - name: nginx4
          image: wangyanglinux/myapp:v4
          imagePullPolicy: IfNotPresent
          ports:
            - containerPort: 80
---
apiVersion: v1
kind: Service
metadata:
  name: svc-4
spec:
  ports:
   - port: 80
     targetPort: 80
     protocol: TCP
  selector:
    name: nginx4
---
vim  basicauth.yaml
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: ingress-with-auth
  annotations:
    nginx.ingress.kubernetes.io/auth-type: basic
    nginx.ingress.kubernetes.io/auth-secret: basic-auth
    nginx.ingress.kubernetes.io/auth-realm: 'Authentication Required - foo'
spec:
  rules:
  - host: auth.flyfish.com
    http:
      paths:
      - path: /
        backend:
          serviceName: svc-4
          servicePort: 80
---
kubectl apply -f deployment4.yaml
kubectl apply -f basicauth.yaml
kubectl get svc -n ingress-nginx

1.5 Nginx 进行重写

vim ingress-re.yaml
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: nginx-re
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: https://www3.flyfish.com:32500/hostname.html
spec:
  rules:
  - host: re.flyfish.com
    http:
     paths:
     - path: /
       backend:
         serviceName: svc-2
         servicePort: 80
---
kubectl apply -f ingress-re.yaml
kubectl get svc -n ingress-nginx