# 使用 traefik 配置 https ingress 本文档已过期,安装最新版本,请参考相关官方文档。 本文档基于 traefik 配置 https ingress 规则,请先阅读[配置基本 ingress](ingress.md)。与基本 ingress-controller 相比,需要额外配置 https tls 证书,主要步骤如下: ## 1.准备 tls 证书 可以使用Let's Encrypt签发的免费证书,这里为了测试方便使用自签证书 (tls.key/tls.crt),注意CN 配置为 ingress 的域名: ``` bash $ openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout tls.key -out tls.crt -subj "/CN=hello.test.com" ``` ## 2.在 kube-system 命名空间创建 secret: traefik-cert,以便后面 traefik-controller 挂载该证书 ``` bash $ kubectl -n kube-system create secret tls traefik-cert --key=tls.key --cert=tls.crt ``` ## 3.创建 traefik-controller,增加 traefik.toml 配置文件及https 端口暴露等,详见该 yaml 文件 ``` bash $ kubectl apply -f /etc/ansible/manifests/ingress/traefik/tls/traefik-controller.yaml ``` ## 4.创建 https ingress 例子 ``` bash # 创建示例应用 $ kubectl run test-hello --image=nginx:alpine --port=80 --expose # hello-tls-ingress 示例 apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: name: hello-tls-ingress annotations: kubernetes.io/ingress.class: traefik spec: rules: - host: hello.test.com http: paths: - backend: serviceName: test-hello servicePort: 80 tls: - secretName: traefik-cert # 创建https ingress $ kubectl apply -f /etc/ansible/manifests/ingress/traefik/tls/hello-tls.ing.yaml # 注意根据hello示例,需要在default命名空间创建对应的secret: traefik-cert $ kubectl create secret tls traefik-cert --key=tls.key --cert=tls.crt ``` ## 5.验证 https 访问 验证 traefik-ingress svc ``` bash $ kubectl get svc -n kube-system traefik-ingress-service NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE traefik-ingress-service NodePort 10.68.250.253 80:23456/TCP,443:23457/TCP,8080:35941/TCP 66m ``` 可以看到项目默认使用nodePort 23456暴露traefik 80端口,nodePort 23457暴露 traefik 443端口,因此在客户端 hosts 增加记录 `$Node_IP hello.test.com`之后,可以在浏览器验证访问如下: ``` bash https://hello.test.com:23457 ``` 如果你已经配置了[转发 ingress nodePort](../op/loadballance_ingress_nodeport.md),那么增加对应 hosts记录后,可以验证访问 `https://hello.test.com` ## 配置 dashboard ingress 前提1:k8s 集群的dashboard 已安装 ``` $ kubectl get svc -n kube-system | grep dashboard kubernetes-dashboard NodePort 10.68.211.168 443:39308/TCP 3d11h ``` 前提2:`/etc/ansible/manifests/ingress/traefik/tls/traefik-controller.yaml`的配置文件`traefik.toml`开启了`insecureSkipVerify = true` 配置 dashboard ingress:`kubectl apply -f /etc/ansible/manifests/ingress/traefik/tls/k8s-dashboard.ing.yaml` 内容如下: ``` apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: name: kubernetes-dashboard namespace: kube-system annotations: traefik.ingress.kubernetes.io/redirect-entry-point: https spec: rules: - host: dashboard.test.com http: paths: - path: / backend: serviceName: kubernetes-dashboard servicePort: 443 ``` - 注意annotations 配置了 http 跳转 https 功能 - 注意后端服务是443端口 ## 参考 - [Add a TLS Certificate to the Ingress](https://docs.traefik.io/user-guide/kubernetes/#add-a-tls-certificate-to-the-ingress)