安装Ingress

添加helm创库

Installation Guide - Ingress-Nginx Controller

Ingress | Kubernetes

下载包

 将 文件helm 放到 /usr/local/bin/

并给到执行权限

# 添加可执行权限
chmod u+x helm
# 测试是否能运行
helm version# 结果
version.BuildInfo{Version:"v3.14.4", GitCommit:"81c902a123462fd4052bc5e9aa9c513c4c8fc142", GitTreeState:"clean", GoVersion:"go1.21.9"}# 查看仓库列表
helm repo list# 添加仓库列表
helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx# 搜索 ingress-nginx
helm search repo ingress-nginx# 拉取 ingress-nginx
helm pull ingress-nginx/ingress-nginx

配置参数

创建namesapce

安装ingress

# 将下载好的安装包解压
tar -xf ingress-nginx-4.10.1.tgz# 解压后进入解压目录
cd ingress-nginx# 修改values.yaml 
# 修改镜像为国内镜像
# registry: registry.cn-hangzhou.aliyuncs.com 这个我试了，镜像没有拉下来
registry: registry.aliyuncs.com
image: google_container/kube-webhook-certgen
image: google_containers/ingress-nginx-controller
hostNetwork: true
dnsPolicy:ClusterFirstWithHostNet
kind: DaemonSet
nodeSelector:ingress:"true"# 将docker.io/jettech/kube-webhook-certgen 改为国内镜像
# 针对 htts 和 http [共有两处]type: ClusterIp # 最上面一个设置就行admissionWebhooks 下的 enable:false# 专门为 ingress创建一个 namespace
kubectl create ns ingress-nginx# 为需要部署ingress的节点 加上标签
kubectl label node k8s-node2 ingress=true# 如需要删除ns下面的资源，可以使用 
kubectl delete ns ingress-nginx# 安装ingress-nginx
helm install ingress-nginx -n ingress-nginx .# 结果  NAME: ingress-nginx
LAST DEPLOYED: Sat Apr 20 02:06:23 2024
NAMESPACE: ingress-nginx
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:
The ingress-nginx controller has been installed.
Get the application URL by running these commands:export POD_NAME="$(kubectl get pods --namespace ingress-nginx --selector app.kubernetes.io/name=ingress-nginx,app.kubernetes.io/instance=ingress-nginx,app.kubernetes.io/component=controller --output jsonpath="{.items[0].metadata.name}")"kubectl port-forward --namespace ingress-nginx "${POD_NAME}" 8080:80echo "Visit http://127.0.0.1:8080 to access your application."An example Ingress that makes use of the controller:apiVersion: networking.k8s.io/v1kind: Ingressmetadata:name: examplenamespace: foospec:ingressClassName: nginxrules:- host: www.example.comhttp:paths:- pathType: Prefixbackend:service:name: exampleServiceport:number: 80path: /# This section is only required if TLS is to be enabled for the Ingresstls:- hosts:- www.example.comsecretName: example-tlsIf TLS is enabled for the Ingress, a Secret containing the certificate and key must also be provided:apiVersion: v1kind: Secretmetadata:name: example-tlsnamespace: foodata:tls.crt: <base64 encoded cert>tls.key: <base64 encoded key>type: kubernetes.io/tls# 测试新增label是否 ingress是否会自动新增
kubectl label node k8s-node2 ingress=true
kubectl get po -n ingress-nginx
# 结果
NAME                             READY   STATUS    RESTARTS   AGE
ingress-nginx-controller-ldbpq   1/1     Running   0          71s
ingress-nginx-controller-tzkgs   1/1     Running   0          9m19skubectl label nodes k8s-node3  ingress# 结果
NAME                             READY   STATUS    RESTARTS   AGE
ingress-nginx-controller-tzkgs   1/1     Running   0          13m

基本使用

#查看 
kubectl get po -n ingress-nginx# 结果
NAME                             READY   STATUS    RESTARTS   AGE
ingress-nginx-controller-tzkgs   1/1     Running   0          21s

创建一个ingress

这里需要配合之前创建的 deploy+service

k8s笔记 | Service 服务https://blog.csdn.net/weixin_41104307/article/details/138240683wolfcode-ingress.yaml

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:name: ingress-nginx-exampleannotations:kubernetes.io/ingress.class: "nginx"
spec:rules:- host: k8s.wolfcode.cnhttp:paths:- pathType: Prefixbackend:service:name: nginx-svcport:number: 80path: /api

# 创建ingress
kubectl create -f wolfcode-ingress.yaml# 查看ingress
kubectl get ingress# 结果
NAME                    CLASS    HOSTS             ADDRESS   PORTS   AGE
ingress-nginx-example   <none>   k8s.wolfcode.cn             80      19s

host文件修改注意事项

192.168.10.102  k8s.wolfcode.cn# 这里需要安装了ingress节点的node才能访问

多域名配置

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:name: ingress-nginx-exampleannotations:kubernetes.io/ingress.class: "nginx"# nginx.ingress.kubernetes.io/rewrite-target: /
spec:rules:- host: k8s.wolfcode.cnhttp:paths:- pathType: Prefixbackend:service:name: nginx-svcport:number: 80path: /api- pathType: Exactbackend:service:name: nginx-svcport:number: 80path: /