traefik 配置https协议

1. https证书申请

如提供了安全的https协议 可直接使用，如未提供 则需要手动生成

mkdir /etc/kubernetes/ssl
cd /etc/kubernetes/ssl/
openssl req -x509 -nodes -days 3650 -newkey rsa:2048 -keyout tls.key -out tls.crt -subj "/CN=47.94.215.234"

参数说明：

• -days 证书有效天数
• -subj “/CN=47.94.215.234” 使用https的域名 这里可以指定某一网端，或者ip，因为没有域名先使用公网ip进行创建证书

2. 创建secrets

# 创建
kubectl create secret generic ssl --from-file=tls.crt --from-file=tls.key -n kube-system
# 更新
kubectl -n kube-system create secret tls tls-rancher-ingress --cert=./tls.crt --key=./tls.key --dry-run -o yaml|kubectl apply -f -

3. 支持https的traefik

3.1 traefik-configmap.yaml

kind: ConfigMap
apiVersion: v1
metadata:
  name: traefik-conf
  namespace: kube-system
data:
  traefik.toml: |
    insecureSkipVerify = true
    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"

3.2 traefik-rbac.yaml

---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:
  name: traefik-ingress-controller
rules:
  - apiGroups:
      - ""
    resources:
      - services
      - endpoints
      - secrets
    verbs:
      - get
      - list
      - watch
  - apiGroups:
      - extensions
    resources:
      - ingresses
    verbs:
      - get
      - list
      - watch
  - apiGroups:
    - extensions
    resources:
    - ingresses/status
    verbs:
    - update
---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:
  name: traefik-ingress-controller
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: traefik-ingress-controller
subjects:
- kind: ServiceAccount
  name: traefik-ingress-controller
  namespace: kube-system

3.3 traefik-deployment.yaml

---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: traefik-ingress-controller
  namespace: kube-system
---
kind: Deployment
apiVersion: apps/v1
metadata:
  name: traefik-ingress-controller
  namespace: kube-system
  labels:
    k8s-app: traefik-ingress-lb
spec:
  replicas: 1
  selector:
    matchLabels:
      k8s-app: traefik-ingress-lb
  template:
    metadata:
      labels:
        k8s-app: traefik-ingress-lb
        name: traefik-ingress-lb
    spec:
      serviceAccountName: traefik-ingress-controller
      terminationGracePeriodSeconds: 60
      containers:
      - image: traefik:v1.7
        name: traefik-ingress-lb
        ports:
        - name: http
          containerPort: 80
        - name: https
          containerPort: 443
        - name: admin
          containerPort: 8080
        args:
        - -d
        - --api
        - --kubernetes
        - --logLevel=INFO
        - --configfile=/config/traefik.toml
        volumeMounts:
        - mountPath: "/ssl"
          name: "ssl"
        - mountPath: "/config"
          name: "config"
      volumes:
      - name: ssl
        secret:
          secretName: ssl
      - name: config
        configMap:
          name: traefik-conf
      tolerations:
      - key: node-role.kubernetes.io/master
        operator: "Equal"
        value: ""
        effect: NoSchedule
      nodeSelector:
        node-role.kubernetes.io/master: ""
---
kind: Service
apiVersion: v1
metadata:
  name: traefik-ingress-service
  namespace: kube-system
spec:
  selector:
    k8s-app: traefik-ingress-lb
  ports:
    - protocol: TCP
      port: 80
      name: web
      nodePort: 31006
    - protocol: TCP
      port: 8080
      name: admin
    - protocol: TCP
      port: 443
      name: https
      nodePort: 30443
  type: NodePort

3.4 traefik-ingress.yaml

---
apiVersion: v1
kind: Service
metadata:
  name: traefik-web-ui
  namespace: kube-system
spec:
  selector:
    k8s-app: traefik-ingress-lb
  ports:
  - name: web
    port: 80
    targetPort: 8080
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: traefik-web-ui
  namespace: kube-system
spec:
  rules:
  - host: traefik-ui.minikube
    http:
      paths:
      - path: /
        backend:
          serviceName: traefik-web-ui
          servicePort: web