Helm 3安装Nginx Ingress Controller
安装
先添加Chart仓库。
helm repo add nginx-stable https://helm.nginx.com/stable
helm repo update
查找nginx-ingress，我们选择nginx-stable/nginx-ingress Chart。
helm search repo nginx-ingress
NAME CHART VERSION APP VERSION DESCRIPTION
nginx-stable/nginx-ingress 0.7.0 1.9.0 NGINX Ingress Controller
stable/nginx-ingress 1.41.3 v0.34.1 DEPRECATED! An nginx Ingress controller that us...
stable/nginx-lego 0.3.1 Chart for nginx-ingress-controller
展示values.yaml文件，分析helm安装Nginx Ingress的命令行覆盖参数。
helm show values nginx-stable/nginx-ingress
由于Nginx Ingress的service缺省采用"type: LoadBalancer"，为了外部访问，修改为"type: NodePort"，顺便设置固定的nodePort。
helm install nginx-ingress nginx-stable/nginx-ingress \ --set controller.service.type=NodePort \ --set controller.service.httpPort.nodePort=80 \ --set controller.service.httpsPort.nodePort=443
-n ingress-controller
kc get svc -n ingress-controller
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
ingress-nginx NodePort 192.168.96.148 <none> 80:30080/TCP,443:30443/TCP 188d
使用
先创建1个集群服务
vi echo-service.yaml
--- apiVersion: v1 kind: Service metadata: labels: app: echo name: echo spec: ports: - name: http port: 8080 protocol: TCP targetPort: 8080 selector: app: echo --- apiVersion: apps/v1 kind: Deployment metadata: labels: app: echo name: echo spec: replicas: 1 selector: matchLabels: app: echo strategy: {} template: metadata: creationTimestamp: null labels: app: echo spec: containers: - image: e2eteam/echoserver:2.2 name: echo ports: - containerPort: 8080 env: - name: NODE_NAME valueFrom: fieldRef: fieldPath: spec.nodeName - name: POD_NAME valueFrom: fieldRef: fieldPath: metadata.name - name: POD_NAMESPACE valueFrom: fieldRef: fieldPath: metadata.namespace - name: POD_IP valueFrom: fieldRef: fieldPath: status.podIP resources: {}
kubectl apply -f echo-service.yaml
vi echo-ingress.yaml
apiVersion: extensions/v1beta1 kind: Ingress metadata: name: echo-ingress namespace: default annotations: kubernetes.io/ingress.class: nginx spec: rules: - host: echo.com http: paths: - path: / backend: serviceName: echo servicePort: 8080
kubectl apply -f echo-ingress.yaml
通过代理访问echo服务
curl -i -H "Host: echo.com" http://192.168.1.55:30080/ HTTP/1.1 200 OK Server: nginx/1.17.9 Date: Fri, 27 Mar 2020 11:13:40 GMT Content-Type: text/plain Transfer-Encoding: chunked Connection: keep-alive Hostname: echo-75cf96d976-bdh6l Pod Information: node name: k8s-node1 pod name: echo-75cf96d976-bdh6l pod namespace: default pod IP: 10.244.1.3 Server values: server_version=nginx: 1.14.2 - lua: 10015 Request Information: client_address=10.244.2.4 method=GET real path=/ query= request_version=1.1 request_scheme=http request_uri=http://echo.com:8080/ Request Headers: accept=*/* connection=close host=echo.com user-agent=curl/7.29.0 x-forwarded-for=10.244.0.0 x-forwarded-host=echo.com x-forwarded-port=80 x-forwarded-proto=http x-real-ip=10.244.0.0 Request Body: -no body in request-