安装trefik-ingress

• 创建安装trefik rbac

cat >rbac.yml<<EOF
---
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
---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: traefik-ingress-controller
  namespace: kube-system
EOF
kubectl apply -f rbac.yml

• 创建traefik配置

cat >traefik.toml<<EOF
defaultEntryPoints = ["http","https"]
[entryPoints]
  [entryPoints.http]
  address = ":80"
  [entryPoints.https]
  address = ":443"
    [entryPoints.https.tls]
EOF
kubectl create -n kube-system configmap traefik-conf --from-file=traefik.toml

• 安装traefik

cat >traefik.yaml<<EOF

apiVersion: extensions/v1beta1
kind: DaemonSet
metadata:
  labels:
    k8s-app: traefik-ingress-lb
  name: traefik-ingress-controller
  namespace: kube-system
  annotations:
    kubernetes.io/ingress.class: traefik #关键参数
spec:
  selector:
    matchLabels:
      k8s-app: traefik-ingress-lb
      name: traefik-ingress-lb
  template:
    metadata:
      labels:
        k8s-app: traefik-ingress-lb
        name: traefik-ingress-lb
    spec:
      affinity:
        nodeAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
            - matchExpressions:
              - key: roles
                operator: In
                values:
                - master
                - etcd

      volumes:
      - name: config
        configMap:
          name: traefik-conf
      containers:
      - args:
        - --api
        - --kubernetes
        - --logLevel=DEBUG
        - --configfile=/config/traefik.toml
        image: traefik
        imagePullPolicy: Always
        name: traefik-ingress-lb
        ports:
        - containerPort: 80
          hostPort: 80
          name: http
          protocol: TCP
        - containerPort: 443
          hostPort: 443
          name: https
          protocol: TCP

        - containerPort: 8080
          hostPort: 8091
          name: admin
          protocol: TCP
        resources: {}
        volumeMounts:
        - mountPath: "/config"
          name: "config"
        securityContext:
          capabilities:
            add:
            - NET_BIND_SERVICE
            drop:
            - ALL
          procMount: Default
      restartPolicy: Always
      serviceAccount: traefik-ingress-controller
      serviceAccountName: traefik-ingress-controller
      terminationGracePeriodSeconds: 60
  templateGeneration: 1
  updateStrategy:
    type: OnDelete
EOF

安装cert-manager

helm repo add jetstack https://charts.jetstack.io
kubectl apply \
    -f https://raw.githubusercontent.com/jetstack/cert-manager/release-0.7/deploy/manifests/00-crds.yaml
kubectl label namespace cert-manager certmanager.k8s.io/disable-validation="true"

helm install --name cert-manager --namespace  cert-manage jetstack/cert-manager --version v0.7.0

参考链接：https://hub.helm.sh/charts/jetstack/cert-manager/v0.7.0

创建traefik ingress

---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  annotations:
    kubernetes.io/ingress.class: traefik #关键参数
  name: kiali-ingress
  namespace: istio-system
spec:
  rules:
    - host: "kiali.xxx.com"
      http:
        paths:
          - path: /
            backend:
              serviceName: kiali
              servicePort: 20001
  tls:
    - hosts:
        - kiali.xxx.com
      secretName: kiali-cert

做DNS解析

创建clusterissuer

apiVersion: certmanager.k8s.io/v1alpha1
kind: ClusterIssuer
metadata:
  name: letsencrypt-prod
spec:
  acme:
    server: https://acme-v02.api.letsencrypt.org/directory
    email: shancang.chen@xxx.com
    privateKeySecretRef:
      name: letsencrypt-prod
    http01: {}

创建证书

apiVersion: certmanager.k8s.io/v1alpha1
kind: Certificate
metadata:
  name: kiali
  namespace: istio-system
spec:
  secretName: kiali-cert
  issuerRef:
    name: letsencrypt-prod
    kind: ClusterIssuer
  dnsNames:
  - kiali.xxx.com
  acme:
    config:
    - http01:
        ingressClass: traefik
      domains:
      - kiali.xxx.com