Traefik K8s设置问题

Question

背景：

我试图站起来使用BareMetal K8s集群，并希望利用Traefik为我的集群大会提供的众多特性。我有MetalLB在前面提供LoadBalancer IP地址，这对我来说不是问题。

信息：

K8s集群版本: 1.12

舵和分水岭版本: v2.11.0

问题：

如果我使用舵图和链接安装Traefik，那么它就会安装，但是当我检查创建的容器的停靠日志时，我会得到以下的错误：

​

E1012 15:23:50.784829       1 reflector.go:205] github.com/containous/traefik/vendor/k8s.io/client-go/informers/factory.go:86: Failed to list *v1.Endpoints: Unauthorized
E1012 15:23:52.279720       1 reflector.go:205] github.com/containous/traefik/vendor/k8s.io/client-go/informers/factory.go:86: Failed to list *v1.Service: Unauthorized
E1012 15:23:52.784902       1 reflector.go:205] github.com/containous/traefik/vendor/k8s.io/client-go/informers/factory.go:86: Failed to list *v1beta1.Ingress: Unauthorized

​

如果我选择了另一条路线，尝试使用正式文档手动安装traefik，我至少可以让它在某种程度上正常工作，但是我会得到类似于

​

time="2018-10-12T12:22:57Z" level=error msg="Service not found for monitoring/prometheus-server"
time="2018-10-12T12:22:59Z" level=warning msg="Endpoints not found for monitoring/prometheus-server"

​

因此，我完全不知道我需要做些什么才能在我的dev (最终的prod集群)中启动和运行它。有人能提供一些帮助和/或指导，让我朝着正确的方向努力吗？

提前谢谢你

Answer 1

对于第一个安装(使用Helm)，您似乎缺少了RBAC吐露

kubectl apply -f https://raw.githubusercontent.com/containous/traefik/master/examples/k8s/traefik-rbac.yaml

对于第二个安装，看起来Traefik可能被配置为从监视命名空间和集群中不存在的prometheus-server服务端点中提取度量标准。如果你能分享一下你是如何部署它的，那就太好了。

Answer 2

谢谢你回答瑞可。

所以作为后续测试。我回到里面，把所有东西都吹走了，然后用下面的命令重新安装

helm install --values values.yaml stable/traefik

NAME:   khaki-goose
LAST DEPLOYED: Fri Oct 12 14:05:23 2018
NAMESPACE: default
STATUS: DEPLOYED

RESOURCES:
==> v1/Deployment
NAME                     AGE
khaki-goose-traefik  0s

==> v1beta1/Ingress
khaki-goose-traefik-dashboard  0s

==> v1/Pod(related)

NAME                                     READY  STATUS   RESTARTS  AGE
khaki-goose-traefik-dccfdf765-cmfl9  0/1    Pending  0         0s

==> v1/ConfigMap

NAME                     AGE
khaki-goose-traefik  0s

==> v1/Service
khaki-goose-traefik-dashboard  0s
khaki-goose-traefik            0s

在创建输出的末尾跟踪建议的命令

kubectl get svc khaki-goose-traefik --namespace default -w

NAME                  TYPE           CLUSTER-IP      EXTERNAL-IP   PORT(S)                      AGE
khaki-goose-traefik   LoadBalancer   10.109.30.181   172.16.15.1   80:31644/TCP,443:31004/TCP   12s

因此，我知道，多亏了MetalLB，我至少能够获得一个“外部IP地址”，并且作为初始设置的一部分，它应该为我创建相关的入口规则，但我不确定它是否正确，正如我描述它时所得到的那样。

Name:             khaki-goose-traefik-dashboard
Namespace:        default
Address: 
Default backend:  default-http-backend:80 (<none>)
Rules:
Host                 Path  Backends
----                 ----  --------
traefik-ui.minikube
                      khaki-goose-traefik-dashboard:80 (<none>)
Annotations:
Events:  <none>

正如我所看到的，最重要的一点是，它并没有真正地获得关于后端的信息(至少我理解它的方式)。

然后，我使用官方文档中指定的默认值运行您建议的命令。

kubectl apply -f traefik-rbac.yaml

当我运行时，它向我展示了以下信息：

kubectl describe pods 

Name:               khaki-goose-traefik-dccfdf765-k9pxh
Namespace:          default
Priority:           0
PriorityClassName:  <none>
Node:               jbv-dev-k8wrkr-02.removed.domain.name/172.16.1.47
Start Time:         Fri, 12 Oct 2018 14:54:30 -0400
Labels:             app=traefik
                    chart=traefik-1.43.0
                    heritage=Tiller
                    pod-template-hash=dccfdf765
                    release=khaki-goose
Annotations:        checksum/config=fba7308c36f00b969971dec5caa6ca1e456737d4564d6c623d261aee9ffb82cc
Status:             Running
IP:                 172.25.4.44
Controlled By:      ReplicaSet/khaki-goose-traefik-dccfdf765
Containers:
  khaki-goose-traefik:
    Container ID:  docker://f88d222ccf72c244bdb100b956a8b629bcb8b89c9954de1f83552bddd6c44a43
    Image:         traefik:1.6.6
    Image ID:      docker-pullable://traefik@sha256:9569c56e8b7353c9c4e5d4f00177b0b7c523db6926a42a148e04a6fa4b6f9f8d
    Ports:         80/TCP, 8880/TCP, 443/TCP, 8080/TCP
    Host Ports:    0/TCP, 0/TCP, 0/TCP, 0/TCP
    Args:
      --configfile=/config/traefik.toml
    State:          Running
      Started:      Fri, 12 Oct 2018 14:54:41 -0400
    Ready:          True
    Restart Count:  0
    Limits:
      cpu:     100m
      memory:  30Mi
    Requests:
      cpu:        100m
      memory:     20Mi
    Liveness:     tcp-socket :80 delay=10s timeout=2s period=10s #success=1 #failure=3
    Readiness:    tcp-socket :80 delay=10s timeout=2s period=10s #success=1 #failure=1
    Environment:  <none>
    Mounts:
      /config from config (rw)
      /var/run/secrets/kubernetes.io/serviceaccount from default-token-n8865 (ro)
Conditions:
  Type              Status
  Initialized       True
  Ready             True
  ContainersReady   True
  PodScheduled      True
Volumes:
  config:
    Type:      ConfigMap (a volume populated by a ConfigMap)
    Name:      khaki-goose-traefik
    Optional:  false
  default-token-n8865:
    Type:        Secret (a volume populated by a Secret)
    SecretName:  default-token-n8865
    Optional:    false
QoS Class:       Burstable
Node-Selectors:  <none>
Tolerations:     node.kubernetes.io/not-ready:NoExecute for 300s
                 node.kubernetes.io/unreachable:NoExecute for 300s
Events:
  Type    Reason     Age   From                                            Message
  ----    ------     ----  ----                                            -------
  Normal  Scheduled  1m    default-scheduler                               Successfully assigned default/khaki-goose-traefik-dccfdf765-k9pxh to jbv-dev-k8wrkr-02.removed.domain.name
  Normal  Pulled     1m    kubelet, jbv-dev-k8wrkr-02.removed.domain.name  Container image "traefik:1.6.6" already present on machine
  Normal  Created    1m    kubelet, jbv-dev-k8wrkr-02.removed.domain.name  Created container
  Normal  Started    1m    kubelet, jbv-dev-k8wrkr-02.removed.domain.name  Started container

我还回去运行命令kubectl日志卡其鹅-traefik-dccfdf765 765-k9pxh。

E1012 20:19:14.410278       1 reflector.go:205] github.com/containous/traefik/vendor/k8s.io/client-go/informers/factory.go:86: Failed to list *v1beta1.Ingress: Unauthorized
E1012 20:19:14.411657       1 reflector.go:205] github.com/containous/traefik/vendor/k8s.io/client-go/informers/factory.go:86: Failed to list *v1.Endpoints: Unauthorized
E1012 20:19:15.388608       1 reflector.go:205] github.com/containous/traefik/vendor/k8s.io/client-go/informers/factory.go:86: Failed to list *v1.Service: Unauthorized
E1012 20:19:15.391057       1 reflector.go:205] github.com/containous/traefik/vendor/k8s.io/client-go/informers/factory.go:86: Failed to list *v1beta1.Ingress: Unauthorized
E1012 20:19:15.397616       1 reflector.go:205] github.com/containous/traefik/vendor/k8s.io/client-go/informers/factory.go:86: Failed to list *v1.Endpoints: Unauthorized
E1012 20:19:15.411714       1 reflector.go:205] github.com/containous/traefik/vendor/k8s.io/client-go/informers/factory.go:86: Failed to list *v1.Service: Unauthorized
E1012 20:19:15.413496       1 reflector.go:205] github.com/containous/traefik/vendor/k8s.io/client-go/informers/factory.go:86: Failed to list *v1beta1.Ingress: Unauthorized
E1012 20:19:15.414809       1 reflector.go:205] github.com/containous/traefik/vendor/k8s.io/client-go/informers/factory.go:86: Failed to list *v1.Endpoints: Unauthorized

应用所有这些之后，我尝试通过端口80或443打开到外部IP地址的web浏览器，然后得到可怕的页面未找到错误。我知道这里有很多信息来参考舵机的设置方式，但是我想提供尽可能多的信息。

我将不得不回顾并解析我从命令历史中为第二次设置所做的相关命令，并在正确提取所有命令时尝试在这里回复。