traefik - traefik 入口：服务无法访问

问题描述

我刚刚部署了 traefik：

$ helm install traefik traefik/traefik --set dashboard.ingressRoute=true

我正在使用一个k3d有 2 个工作人员的集群。

安装 traefik 后，我意识到有几个类似入口的资源：

$ kubectl api-resources | grep ingress
NAME               SHORTNAMES   APIGROUP               NAMESPACED   KIND
ingresses          ing          extensions             true         Ingress
ingresses          ing          networking.k8s.io      true         Ingress
ingressroutes                   traefik.containo.us    true         IngressRoute
ingressroutetcps                traefik.containo.us    true         IngressRouteTCP

第一个问题是：为什么会有这么多类似 ingress 的资源？

我可以访问我刚刚部署的 traefik 仪表板localhost/dashboard。

尽管如此，我安装了一个简单的服务，我无法弄清楚为什么它无法访问。

这里，graylog.localhost入口描述：

$ kubectl describe ingresses.networking.k8s.io graylog-web
Name:             graylog-web
Namespace:        graylog
Address:          
Default backend:  default-http-backend:80 (<none>)
Rules:
  Host               Path  Backends
  ----               ----  --------
  graylog.localhost  
                     /gelf   graylog-tcp:gelf (10.42.0.24:12201,10.42.1.33:12201)
                             graylog-web:graylog (10.42.0.24:9000,10.42.1.33:9000)
Annotations:
Events:  <none>

但是，当我尝试访问时graylog.localhost：

$ curl graylog.localhost
404 page not found

这是已部署的 traefik 部署：

$ kubectl describe deployments.apps traefik
Name:                   traefik
Namespace:              kube-system
CreationTimestamp:      Sun, 08 Mar 2020 20:51:09 +0100
Labels:                 app=traefik
                        chart=traefik-4.0.0
                        heritage=Helm
                        release=traefik
Annotations:            deployment.kubernetes.io/revision: 1
Selector:               app=traefik,release=traefik
Replicas:               1 desired | 1 updated | 1 total | 1 available | 0 unavailable
StrategyType:           RollingUpdate
MinReadySeconds:        0
RollingUpdateStrategy:  1 max unavailable, 1 max surge
Pod Template:
  Labels:           app=traefik
                    chart=traefik-4.0.0
                    heritage=Helm
                    release=traefik
  Service Account:  traefik
  Containers:
   traefik:
    Image:       traefik:2.1.3
    Ports:       9000/TCP, 8000/TCP, 8443/TCP
    Host Ports:  0/TCP, 0/TCP, 0/TCP
    Args:
      --global.checknewversion=true
      --global.sendanonymoususage=true
      --entryPoints.traefik.address=:9000
      --entryPoints.web.address=:8000
      --entryPoints.websecure.address=:8443
      --api.dashboard=true
      --ping=true
      --providers.kubernetescrd
      --log.level=WARN
    Liveness:     http-get http://:9000/ping delay=10s timeout=2s period=10s #success=1 #failure=3
    Readiness:    http-get http://:9000/ping delay=10s timeout=2s period=10s #success=1 #failure=1
    Environment:  <none>
    Mounts:       <none>
  Volumes:        <none>
Conditions:
  Type           Status  Reason
  ----           ------  ------
  Available      True    MinimumReplicasAvailable
  Progressing    True    NewReplicaSetAvailable
OldReplicaSets:  <none>
NewReplicaSet:   traefik-6c6c896889 (1/1 replicas created)
Events:
  Type    Reason             Age    From                   Message
  ----    ------             ----   ----                   -------
  Normal  ScalingReplicaSet  4d11h  deployment-controller  Scaled up replica set traefik-6c6c896889 to 1

在这里你有traefik服务描述：

$ kubectl describe services traefik
Name:                     traefik
Namespace:                kube-system
Labels:                   app=traefik
                          chart=traefik-4.0.0
                          heritage=Helm
                          release=traefik
Annotations:              <none>
Selector:                 app=traefik,release=traefik
Type:                     LoadBalancer
IP:                       10.43.215.222
LoadBalancer Ingress:     172.20.0.2
Port:                     web  80/TCP
TargetPort:               web/TCP
NodePort:                 web  31000/TCP
Endpoints:                10.42.1.12:8000
Port:                     websecure  443/TCP
TargetPort:               websecure/TCP
NodePort:                 websecure  31856/TCP
Endpoints:                10.42.1.12:8443
Session Affinity:         None
External Traffic Policy:  Cluster
Events:                   <none>

有任何想法吗？

标签： traefiktraefik-ingressk3s

traefik - traefik 入口：服务无法访问

问题描述

解决方案

推荐阅读