K8S: Deployment of Ingress and Traefik

Traefik

Ingress-based controller and load balancing service

Documents: the docs. Traefik. IO/will/k…

Docs. Traefik. IO/user – guides…

Establish traefik. Res. Yml

apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: ingressroutes.traefik.containo.us
 
spec:
  group: traefik.containo.us
  version: v1alpha1
  names:
    kind: IngressRoute
    plural: ingressroutes
    singular: ingressroute
  scope: Namespaced
 
---
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: middlewares.traefik.containo.us
 
spec:
  group: traefik.containo.us
  version: v1alpha1
  names:
    kind: Middleware
    plural: middlewares
    singular: middleware
  scope: Namespaced
 
---
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: ingressroutetcps.traefik.containo.us
 
spec:
  group: traefik.containo.us
  version: v1alpha1
  names:
    kind: IngressRouteTCP
    plural: ingressroutetcps
    singular: ingressroutetcp
  scope: Namespaced
 
---
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: ingressrouteudps.traefik.containo.us
 
spec:
  group: traefik.containo.us
  version: v1alpha1
  names:
    kind: IngressRouteUDP
    plural: ingressrouteudps
    singular: ingressrouteudp
  scope: Namespaced
 
---
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: tlsoptions.traefik.containo.us
 
spec:
  group: traefik.containo.us
  version: v1alpha1
  names:
    kind: TLSOption
    plural: tlsoptions
    singular: tlsoption
  scope: Namespaced
 
---
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: tlsstores.traefik.containo.us
 
spec:
  group: traefik.containo.us
  version: v1alpha1
  names:
    kind: TLSStore
    plural: tlsstores
    singular: tlsstore
  scope: Namespaced
 
---
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: traefikservices.traefik.containo.us
 
spec:
  group: traefik.containo.us
  version: v1alpha1
  names:
    kind: TraefikService
    plural: traefikservices
    singular: traefikservice
  scope: Namespaced
 
---
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
  - apiGroups:
      - traefik.containo.us
    resources:
      - middlewares
      - ingressroutes
      - traefikservices
      - ingressroutetcps
      - ingressrouteudps
      - tlsoptions
      - tlsstores
    verbs:
      - get
      - list
      - watch
 
---
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: default
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Apply the Traefik resource configuration

$ kubectl apply -f traefik.res.yml
customresourcedefinition.apiextensions.k8s.io/ingressroutes.traefik.containo.us created
customresourcedefinition.apiextensions.k8s.io/middlewares.traefik.containo.us created
customresourcedefinition.apiextensions.k8s.io/ingressroutetcps.traefik.containo.us created
customresourcedefinition.apiextensions.k8s.io/ingressrouteudps.traefik.containo.us created
customresourcedefinition.apiextensions.k8s.io/tlsoptions.traefik.containo.us created
customresourcedefinition.apiextensions.k8s.io/tlsstores.traefik.containo.us created
customresourcedefinition.apiextensions.k8s.io/traefikservices.traefik.containo.us created
clusterrole.rbac.authorization.k8s.io/traefik-ingress-controller created
clusterrolebinding.rbac.authorization.k8s.io/traefik-ingress-controller created
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Create traefik – service. Yml

apiVersion: v1
kind: Service
metadata:
  name: traefik
 
spec:
  type: NodePort Note that NodePort is specified here so that the service can be accessed
  ports:
    - protocol: TCP
      name: web # Web side, this port is used for load balancing scheduling
      port: 8000
    - protocol: TCP
      name: admin # Traefit's admin background
      port: 8080
    - protocol: TCP
      name: websecure # HTTPS access to the Web
      port: 4443
  selector:
    app: traefik
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Apply the Traefik service configuration

kubectl apply -f traefik.service.yml
service/traefik created
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Create traefik – deploy. Yml

apiVersion: v1
kind: ServiceAccount
metadata:
  namespace: default
  name: traefik-ingress-controller
 
---
kind: Deployment
apiVersion: apps/v1
metadata:
  namespace: default
  name: traefik
  labels:
    app: traefik
 
spec:
  replicas: 1
  selector:
    matchLabels:
      app: traefik
  template:
    metadata:
      labels:
        app: traefik
    spec:
      serviceAccountName: traefik-ingress-controller
      containers:
        - name: traefik
          image: Traefik: v2.2
          args:
            - --api.insecure
            - --accesslog
            - --entrypoints.web.Address=:8000
            - --entrypoints.websecure.Address=:4443
            - --providers.kubernetescrd
            - --certificatesresolvers.myresolver.acme.tlschallenge
            - [email protected]
            - --certificatesresolvers.myresolver.acme.storage=acme.json
            - --certificatesresolvers.myresolver.acme.caserver=https://acme-staging-v02.api.letsencrypt.org/directory
          ports:
            - name: web
              containerPort: 8000
            - name: websecure
              containerPort: 4443
            - name: admin
              containerPort: 8080
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Apply traefik’s publishing configuration

$ kubectl apply -f traefik-deploy.yml
serviceaccount/traefik-ingress-controller created
deployment.apps/traefik created
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Take a look at the release installation

# traefik is already Running in the default namespace
$ kubectl get pods  -o wide               
NAME                       READY   STATUS    RESTARTS   AGE     IP           NODE          NOMINATED NODE   READINESS GATES
k8s-app-5c8757d6dd-nnkpc   1/1     Running   0          78m     10.244.2.2   kube-node-2   <none>           <none>
traefik-759c474dd5-55qvx   1/1     Running   0          2m23s   10.244.1.3   kube-node-1   <none>           <none>
 
Services is OK,type is NodePort$ kubectl get services -o wide NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE SELECTOR k8s-app-service NodePort 10.105.32.4 < None > 80:32383/TCP 91m app=k8s-app Kubernetes ClusterIP 10.96.0.1 < None > 443/TCP 7h40m <none> Traefik NodePort 10.100.89.55 < none > / TCP 8000-31421, 8080:30655 / TCP, 4443:32266 / TCP 18 m = traefik appCopy the code

Take a look at traefit’s management background

Port # 30655 corresponds to 8080

http://any NODE IP address :30655