kubernetes 的 ingress 配置部署

kubernetes 的 ingress 配置部署

標籤（空格分隔）： kubernetes系列

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• 一：kubernetes 的 ingress

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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 官方網站：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

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全部節點上傳ingress-contro.tar 文件

全部節點加載鏡像
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

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如何使用國外機器打包鏡像已經下載

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

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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

而後 下載 ingrss.contro.tar.gz 便可

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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

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1.2：Ingress HTTP 代理訪問

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 發佈

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

---

實現一個虛擬主機

---

定義deploy1 與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

---

定義deploy2 與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

定義ingress的nginx 對外鏈接

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

測試： 

kubectl get svc 

kubectl get svc -n ingress-nginx

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1.3 Ingress HTTPS 代理訪問

建立證書，以及 cert 存儲方式

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 進行 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 進行重寫

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