Traefik的TLS配置

 

 

  

生產環境的部署大多采用F5+ Traefik這種方式，因為Traefik的SSL方式相對來說比較慢，因此SSL更多的在F5上開放，而F5到Traefik之間以及后端都是http方式。

但客戶需要在開發和測試環境直接用SSL，因此需要配置。

 

遇到一些小坑，記錄一下理解

•  先生成一個secret,記住別搞個一年就過期的啊。

openssl req \
        -newkey rsa:2048 -nodes -keyout tls.key \
        -x509 -days 3650 -out tls.crt

 

• 創建secret

kubectl create secret generic traefik-cert \
        --from-file=tls.crt \
        --from-file=tls.key -n kube-system

  

• 創建configmap,此處有坑，/ssl/tls.crt等路徑不是我們本地的路徑，而是在容器內路徑，所以不要去修改！

# traefik.toml
defaultEntryPoints = ["http","https"]
[entryPoints]
  [entryPoints.http]
  address = ":80"
    [entryPoints.http.redirect]
      entryPoint = "https"
  [entryPoints.https]
  address = ":443"
    [entryPoints.https.tls]
      [[entryPoints.https.tls.certificates]]
      CertFile = "/ssl/tls.crt"
      KeyFile = "/ssl/tls.key"

如果需要同時打開80和443,需要如下配置文件

# traefik.toml
defaultEntryPoints = ["http","https"]
[entryPoints]
  [entryPoints.http]
  address = ":80"
  [entryPoints.https]
  address = ":443"
    [entryPoints.https.tls]
      [[entryPoints.https.tls.certificates]]
      CertFile = "/ssl/tls.crt"
      KeyFile = "/ssl/tls.key"

 

建立起來

kubectl create configmap traefik-conf --from-file=traefik.toml -n kube-system

  

• traefik.yaml文件

隨便找了段貼上去啊，看詳細日志打開

logLevel=DEBUG

apiVersion: v1
kind: Deployment
apiVersion: extensions/v1beta1
metadata:
  name: traefik-ingress-controller
  namespace: kube-system
  labels:
    k8s-app: traefik-ingress-lb
spec:
  replicas: 2
  selector:
    matchLabels:
      k8s-app: traefik-ingress-lb
  template:
    metadata:
      labels:
        k8s-app: traefik-ingress-lb
        name: traefik-ingress-lb
    spec:
      terminationGracePeriodSeconds: 60
      volumes:
      - name: ssl
        secret:
          secretName: traefik-cert
      - name: config
        configMap:
          name: traefik-conf
      hostNetwork: true
      containers:
      - image: registry.yourcompany.com/traefik:v1.1.1
        name: traefik-ingress-lb
        volumeMounts:
        - mountPath: "/ssl"
          name: "ssl"
        - mountPath: "/config"
          name: "config"
        resources:
          limits:
            cpu: 200m
            memory: 30Mi
          requests:
            cpu: 100m
            memory: 20Mi
        ports:
        - name: http
          containerPort: 80
          hostPort: 80
        - name: https
          containerPort: 443
          hostPort: 443
        - name: admin
          containerPort: 9002
        args:
        - --configfile=/config/traefik.toml
        - --web
        - --kubernetes
        - --logLevel=DEBUG

  此處的坑是/config/traefik.toml是容器內地址，不是宿主機的路徑，不要手賤去修改！

 

• 測試

可以在瀏覽器上直接測試，也可以用命令行。

curl -k https://...