k8s nginx-ingress部署

Posted 2021-09-21 青衫解衣

两种方式部署k8s nginx-ingress:​

​1.heml源安装

2.yaml安装​

Heml安装ingress-nginx:

目前测试集群1.17.17,最新版的ingress-nginx是安装不了的。

ingress所支持的k8s版本:

https://github.com/kubernetes/ingress-nginx​

git拉取kubernetes-ingress仓库:

[root@master ingress-nginx]# git clone https://github.com/nginxinc/kubernetes-ingress/

             

添加nginx-stable源:

[root@master helm-chart]# helm repo add nginx-stable https://helm.nginx.com/stable

"nginx-stable" has been added to your repositories

通过helm安装nginx-ingress:

[root@master helm-chart]# pwd

/root/ingress/ingress-nginx/kubernetes-ingress/deployments/helm-chart

[root@master helm-chart]# helm install my-release nginx-stable/nginx-ingress

NAME: my-release

LAST DEPLOYED: Thu Sep  2 22:48:22 2021

NAMESPACE: default

STATUS: deployed

REVISION: 1

TEST SUITE: None

NOTES:

The NGINX Ingress Controller has been installed.

 

安装时可以指定参数:

[root@master helm-chart]# helm install nginx-ingress nginx-stable/nginx-ingress --set rbac.create=true,--set controller.service.loadBalancerIPs[0]=10.40.42.103,--namespace=ingress-nginx

Error: expected at most two arguments, unexpected arguments: controller.service.loadBalancerIPs[0]=10.40.42.103,--namespace=ingress-nginx

[root@master helm-chart]# helm install nginx-ingress nginx-stable/nginx-ingress --set rbac.create=true,--namespace=ingress-nginx

NAME: nginx-ingress

LAST DEPLOYED: Fri Sep  3 02:23:54 2021

NAMESPACE: default

STATUS: deployed

REVISION: 1

TEST SUITE: None

NOTES:

The NGINX Ingress Controller has been installed.

 

通过github yaml文件安装:

V11目录代表安装ingress 1.11版本，自己建的方便区分.

切换到一下目录:

/root/v11/kubernetes-ingress/deployments/helm-chart

修改values.yaml配置文件:

参数根据个人需要调整。

执行安装:

helm install my-release .​

查看当前ingress-contro的ingress-class：

[root@master helm-chart]# kubectl get deploy -n default -o yaml | grep class

          - -ingress-class=nginx-test

          - -use-ingress-class-only=false

查看ingress service状态:

[root@master ~]# kubectl get svc

NAME                       TYPE           CLUSTER-IP     EXTERNAL-IP    PORT(S)                      AGE

kubernetes                 ClusterIP      10.96.0.1      <none>         443/TCP                      3d7h

my-release-nginx-ingress   LoadBalancer   10.97.160.13   10.40.42.103   80:32419/TCP,443:31679/TCP   118m

 

 

安装测试应用nginx:

[root@master nginx-app]# kubectl apply -f base.yaml

namespace/nginx-example created

deployment.apps/nginx-deployment created

service/my-nginx created

 

查看nginx pod状态：

[root@master nginx-app]# kubectl get pod -A  | grep nginx-example

nginx-example          nginx-deployment-7cd5ddccc7-5vw2b           1/1     Running   0          53s

nginx-example          nginx-deployment-7cd5ddccc7-84x6q           1/1     Running   0          53s

查看nginx service状态:

[root@master nginx-app]# kubectl get svc -A  | grep nginx-example

nginx-example          my-nginx                    ClusterIP      10.106.91.145    <none>        80/TCP                       62s

 

创建nginx测试的案例的ingress:

[root@master ~]# kubectl apply -f ingresstest.yaml

ingress.extensions/ingress-test created

[root@master ~]# cat ingresstest.yaml

apiVersion: extensions/v1beta1

kind: Ingress

metadata:

  name: ingress-test

  namespace: nginx-example

  annotations:

    kubernetes.io/ingress.class: "nginx-test"

    ingress.kubernetes.io/rewrite-target: /

spec:

  rules:

    - host: test2.example.com

      http:

        paths:

          - path: /

            backend:

              serviceName: mys-nginx

              servicePort: 80

 

查看ingress的状态:

[root@master ~]# kubectl get ing -A

NAMESPACE       NAME           HOSTS               ADDRESS        PORTS   AGE

nginx-example   ingress-test   test2.example.com   10.40.42.103   80      32m

 

本地配置解析:

10.40.42.103 test2.example.com

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