5.kubernetes的服务暴露插件-Traefik

部署traefik

在HDSS7-200.host.com上

[root@hdss7- k8s-yaml]# docker pull traefik:v1.7.2-alpine

[root@hdss7- k8s-yaml]# docker images |grep traefik

[root@hdss7- k8s-yaml]# docker tag add5fac61ae5 harbor.fx.com/public/traefik:v1.7.2

[root@hdss7- k8s-yaml]# docker push harbor.fx.com/public/traefik:v1.7.2

准备资源配置清单

在HDSS7-200.host.com上

[root@hdss7- traefik]# mkdir -p /data/k8s-yaml/traefik && cd /data/k8s-yaml/traefik

rbac.yaml

[root@hdss7- traefik]# vim rbac.yaml

apiVersion: v1

kind: ServiceAccount

metadata:

  name: traefik-ingress-controller

  namespace: kube-system

---

apiVersion: rbac.authorization.k8s.io/v1beta1

kind: ClusterRole

metadata:

  name: traefik-ingress-controller

rules:

  - apiGroups:

      - ""

    resources:

      - services

      - endpoints

      - secrets

    verbs:

      - get

      - list

      - watch

  - apiGroups:

      - extensions

    resources:

      - ingresses

    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: kube-system

ds.yaml

[root@hdss7- traefik]# vim ds.yaml

apiVersion: extensions/v1beta1

kind: DaemonSet

metadata:

  name: traefik-ingress

  namespace: kube-system

  labels:

    k8s-app: traefik-ingress

spec:

  template:

    metadata:

      labels:

        k8s-app: traefik-ingress

        name: traefik-ingress

    spec:

      serviceAccountName: traefik-ingress-controller

      terminationGracePeriodSeconds:

      containers:

      - image: harbor.fx.com/public/traefik:v1.7.2

        name: traefik-ingress

        ports:

        - name: controller

          containerPort:

          hostPort:

        - name: admin-web

          containerPort:

        securityContext:

          capabilities:

            drop:

            - ALL

            add:

            - NET_BIND_SERVICE

        args:

        - --api

        - --kubernetes

        - --logLevel=INFO

        - --insecureskipverify=true

        - --kubernetes.endpoint=https://10.4.7.10:7443

        - --accesslog

        - --accesslog.filepath=/var/log/traefik_access.log

        - --traefiklog

        - --traefiklog.filepath=/var/log/traefik.log

        - --metrics.prometheus

svc.yaml

[root@hdss7- traefik]# vim svc.yaml

kind: Service

apiVersion: v1

metadata:

  name: traefik-ingress-service

  namespace: kube-system

spec:

  selector:

    k8s-app: traefik-ingress

  ports:

    - protocol: TCP

      port:

      name: controller

    - protocol: TCP

      port:

      name: admin-web

ingress.yaml

[root@hdss7- traefik]# vim ingress.yaml

apiVersion: extensions/v1beta1

kind: Ingress

metadata:

  name: traefik-web-ui

  namespace: kube-system

  annotations:

    kubernetes.io/ingress.class: traefik

spec:

  rules:

  - host: traefik.fx.com

    http:

      paths:

      - path: /

        backend:

          serviceName: traefik-ingress-service

          servicePort:

应用资源配置清单

[root@hdss7- ~]# kubectl apply -f http://k8s-yaml.fx.com/traefik/rbac.yaml

[root@hdss7- ~]# kubectl apply -f http://k8s-yaml.fx.com/traefik/ds.yaml

[root@hdss7- ~]# kubectl apply -f http://k8s-yaml.fx.com/traefik/svc.yaml

[root@hdss7- ~]# kubectl apply -f http://k8s-yaml.fx.com/traefik/ingress.yaml

检查创建资源

[root@hdss7- ~]# kubectl get pods -n kube-system

NAME                       READY   STATUS    RESTARTS   AGE

coredns-65cb567d6f-4x5tn   /     Running             15h

traefik-ingress-7p7z4      /     Running             19m

traefik-ingress-f6kpc      /     Running             19m

解析域名

[root@hdss7- ~]# vim /var/named/fx.com.zone

$ORIGIN fx.com.

$TTL         ;  minutes

@               IN SOA  dns.fx.com. dnsadmin.fx.com. (

                          ; serial

                               ; refresh ( hours)

                                 ; retry ( minutes)

                              ; expire ( week)

                               ; minimum ( day)

                         )

                        NS      dns.fx.com.

$TTL  ;  minute

dns             A       10.4.7.11

harbor          A       10.4.7.200

k8s-yaml        A       10.4.7.200

traefik         A       10.4.7.10

[root@hdss7- ~]# systemctl restart named

配置反向代理

[root@hdss7- ~]# vim /etc/nginx/conf.d/fx.com.conf

upstream default_backend_traefik {

    server 10.4.7.21:    max_fails= fail_timeout=10s;

    server 10.4.7.22:    max_fails= fail_timeout=10s;

}

server {

    server_name *.fx.com;

    location / {

        proxy_pass http://default_backend_traefik;

        proxy_set_header Host       $http_host;

        proxy_set_header x-forwarded-for $proxy_add_x_forwarded_for;

    }

}

[root@hdss7- ~]# nginx -t

[root@hdss7- ~]# nginx -s reload

注:HDSS7-12.host.com也需要配置nginx

浏览器访问

http://traefik.fx.com/

巴特西

5.kubernetes的服务暴露插件-Traefik

最新文章

热门文章