[TOC] >[info] 本節文章不解釋字段的含義，先體驗traefik代理http服務給k8s集群外部訪問。 `kubernetes` 集群創建 `whoami` 應用。然后通過 `kubernetesCRD` 服務發現機制，通過 `traefik` 把業務暴露出去。 ## 創建 whoami 應用 ```shell cat <<- 'EOF' | kubectl apply -f - apiVersion: apps/v1 kind: Deployment metadata: name: whoami labels: name: whoami spec: replicas: 1 selector: matchLabels: app: whoami template: metadata: labels: app: whoami spec: containers: - name: whoami image: traefik/whoami ports: - containerPort: 80 --- apiVersion: v1 kind: Service metadata: name: whoami spec: ports: - name: http port: 80 selector: app: whoami EOF ``` 查看創建資源情況 ```shell kubectl get pod -l app=whoami kubectl get svc whoami ```  ## 創建 IngressRoute 資源 ```shell cat <<- 'EOF' | kubectl apply -f - --- apiVersion: traefik.io/v1alpha1 kind: IngressRoute metadata: name: whoami spec: entryPoints: - web routes: - match: Host(`whoami.ecloud.com`) kind: Rule services: - name: whoami port: 80 EOF ``` 查看創建資源情況 ```shell kubectl describe ingressroute.traefik.io whoami kubectl get ingressroute.traefik.io whoami ```  ## 驗證通過 traefik 測試是否可訪問應用 命令行驗證： `curl -H "Host: whoami.ecloud.com" http://192.168.32.100`