Kubernetes---Service(SVC)服务--ingress api
⒈部署Ingress-Nginx
1.下载资源文件
#下载资源文件 wget https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/deploy/static/mandatory.yaml
⒉创建
kubectl apply -f mandatory.yaml
⒊查看
kubectl get pod -n ingress-nginx
⒋选择不同的暴露方案执行【此处选择裸机暴露方案,就是以svc暴露】
#下载 wget https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/deploy/static/provider/baremetal/service-nodeport.yaml #创建 kubectl apply -f service-nodeport.yaml
⒌查看
kubectl get svc -n ingress-nginx
⒉Ingress方案
1.Ingress HTTP 代理访问
㈠Deployment
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: nginx-dm
spec:
replicas: 2
template:
metadata:
labels:
name: nginx
spec:
containers:
- name: nginx
image: fanqisoft/myapp:v1
imagePullPolicy: IfNotPresent
ports:
- containerPort: 80
㈡Service
apiVersion: v1
kind: Service
metadata:
name: nginx-svc
spec:
ports:
- port: 80
targetPort: 80
protocol: TCP
selector:
name: nginx
㈢Ingress
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: nginx-test
spec:
rules:
- host: www.coreqi.cn
http:
paths:
- path: /
backend:
serviceName: nginx-svc
servicePort: 80
3.查看服务端口
kubectl get svc -n ingress-nginx
4.将相关域名写入host文件
5.在浏览器中进行HTTP访问
2.Ingress HTTPS代理访问
1.创建证书及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
2.创建相关资源
㈠Deployment
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: deployment3
spec:
replicas: 2
template:
metadata:
labels:
name: nginx3
spec:
containers:
- name: nginx3
image: fanqisoft/myapp:v3
imagePullPolicy: IfNotPresent
ports:
- containerPort: 80
㈡Service
apiVersion: v1
kind: Service
metadata:
name: svc-3
spec:
ports:
- port: 80
targetPort: 80
protocol: TCP
selector:
name: nginx3
㈢Ingress
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: nginx-test
spec:
tls:
- hosts:
- foo.bar.com
secretName: tls-secret
rules:
- host:foo.bar.com
http:
paths:
- path: /
backend:
serviceName: svc-3
servicePort: 80
3.查看服务端口
kubectl get svc -n ingress-nginx
4.将相关域名写入host文件
5.在浏览器中进行HTTP访问
⒊Nginx添加BasicAuth(基础认证)功能
1.安装相关模块并创建密钥
对于Nginx的认证方案来说,采用的是Apache的一个模块,所以在配置Nginx的认证之前,需要先安装Apache的模块.
因为Ingress的实现方案采用的是Nginx的软件,所以Nginx的相关特性Ingress都支持.
#密码文件的创建 yum -y install httpd htpasswd -c auth fanqi #创建密钥文件,文件名为auth,用户名为fanqi #把该文件以secret方式进行保存,类型为generic kubectl create secret generic basic-auth --from-file=auth
2.创建Ingress资源
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: foo2.bar.com
http:
paths:
- path: /
backend:
serviceName: nginx-svc
servicePort: 80
⒋Nginx进行URL重定向
1.相关属性
名称 | 描述 | 值类型 |
nginx.ingress.kubernetes.io/rewrite- target |
必须重定向流量的目标URI | string |
nginx.ingress.kubernetes.io/ssl- redirect |
指示位置部分是否仅可访问SSL(当Ingress包含证书时 |
bool |
nginx.ingress.kubernetes.io/force- ssl-redirect |
即使lngress未启用TLS,也强制重定向到HTTPS | bool |
nginx.ingress.kubernetes.io/app- root |
定义Controller必须重定向的应用程序根,如果它在‘/’上下文中 | string |
nginx.ingress.kubernetes.io/use- regex |
指示Ingress上定义的路径是否使用正则表达式 | bool |
2.创建资源示例
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: nginx-test
annotations:
nginx.ingress.kubernetes.io/rewrite-target: http://foo.bar.com:31795/hostname.html
spec:
rules:
- host: foo10.bar.com
http:
paths:
- path: /
backend:
serviceName: nginx-svc
servicePort: 80