DOCKER 安装tr docker安装traefik2 gogs

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数据侠客行 2024-01-22 05:53:03

文章标签 DOCKER 安装tr kubernetes 字段 Group docker 文章分类 Docker 云计算

前言

目前traefik更新到了 2.5 的版本，本文基于最新版本安装traefik。

一、简介

Traefik 是一个云原生的新型的 HTTP 反向代理、负载均衡软件，能轻易的部署微服务. 它支持多种后端 (Docker, Swarm, Mesos/Marathon, Consul, Etcd, Zookeeper, BoltDB, Rest API, file…) ,可以对配置进行自动化、动态的管理。

Traefik是一个开源的边缘路由器，它使发布您的服务成为一个有趣和简单的体验。它接受外部请求，通过路由找到相关组件处理请求。

特点：

Golang编写，单文件部署，与系统无关，同时也提供小尺寸Docker镜像。

支持Docker/Etcd后端，天然连接我们的微服务集群。

内置Web UI（dashboard），管理相对方便。

自动配置ACME(Let’s Encrypt)证书功能。

性能尚可，我们也没有到压榨LB性能的阶段，易用性更重要。

Restful API支持。

支持后端健康状态检查，根据状态自动配置。

支持动态加载配置文件和graceful重启。

支持WebSocket和HTTP/2。

二、下载traefik

1、查询

[root@k8s-master k8s]# docker search traefik
NAME                                          DESCRIPTION                                     STARS               OFFICIAL            AUTOMATED
traefik                                       Traefik, The Cloud Native Edge Router           2310                [OK]
containous/traefik                            Traefik unofficial image (please use officia…   37                                      [OK]
thomseddon/traefik-forward-auth               Minimal forward authentication that provides…   35                                      [OK]

2、下载

[root@k8s-master k8s]# docker pull traefik
Using default tag: latest
latest: Pulling from library/traefik
97518928ae5f: Pull complete
8f1084cd7998: Pull complete
7f585f616a11: Pull complete
c4f598fe2b15: Pull complete
Digest: sha256:2f603f8d3abe1dd3a4eb28960c55506be48293b41ea2c6ed4a4297c851a57a05
Status: Downloaded newer image for traefik:latest
docker.io/library/traefik:latest

3、打tag

[root@k8s-master k8s]# docker tag traefik:latest 172.16.10.158:85/traefik

4、推送到私有仓库

[root@k8s-master k8s]# docker push 172.16.10.158:85/traefik
The push refers to repository [172.16.10.158:85/traefik]
d5027df3849a: Pushed
089094788c81: Pushed
329f6072fea0: Pushed
1a058d5342cc: Pushed
latest: digest: sha256:cb6c620b70f3981b2323cf759d452164e84ed6ce82c2a2a84e0df825a8428309 size: 1157

二、安装traefik

1.创建CRD资源

（1）traefik-crd.yaml

[root@k8s-master 2]# cat traefik-crd.yaml
## IngressRoute
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: ingressroutes.traefik.containo.us
spec:
  scope: Namespaced
  group: traefik.containo.us
  version: v1alpha1
  names:
    kind: IngressRoute
    plural: ingressroutes
    singular: ingressroute
---
## IngressRouteTCP
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: ingressroutetcps.traefik.containo.us
spec:
  scope: Namespaced
  group: traefik.containo.us
  version: v1alpha1
  names:
    kind: IngressRouteTCP
    plural: ingressroutetcps
    singular: ingressroutetcp
---
## Middleware
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: middlewares.traefik.containo.us
spec:
  scope: Namespaced
  group: traefik.containo.us
  version: v1alpha1
  names:
    kind: Middleware
    plural: middlewares
    singular: middleware
---
## MiddlewareTcp
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: middlewaretcps.traefik.containo.us
spec:
  scope: Namespaced
  group: traefik.containo.us
  version: v1alpha1
  names:
    kind: MiddlewareTCP
    plural: middlewaretcps
    singular: middlewaretcp
---
## ServersTransport
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: serverstransports.traefik.containo.us
spec:
  group: traefik.containo.us
  version: v1alpha1
  names:
    kind: ServersTransport
    plural: serverstransports
    singular: serverstransport
  scope: Namespaced
---
## TLSOption
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: tlsoptions.traefik.containo.us
spec:
  scope: Namespaced
  group: traefik.containo.us
  version: v1alpha1
  names:
    kind: TLSOption
    plural: tlsoptions
    singular: tlsoption
---
## TraefikService
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: traefikservices.traefik.containo.us
spec:
  scope: Namespaced
  group: traefik.containo.us
  version: v1alpha1
  names:
    kind: TraefikService
    plural: traefikservices
    singular: traefikservice
---
## TraefikTLSStore
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: tlsstores.traefik.containo.us
spec:
  scope: Namespaced
  group: traefik.containo.us
  version: v1alpha1
  names:
    kind: TLSStore
    plural: tlsstores
    singular: tlsstore
---
## IngressRouteUDP
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: ingressrouteudps.traefik.containo.us
spec:
  scope: Namespaced
  group: traefik.containo.us
  version: v1alpha1
  names:
    kind: IngressRouteUDP
    plural: ingressrouteudps
    singular: ingressrouteudp

（2）创建

[root@k8s-master 2]# kubectl create -f traefik-crd.yaml
Warning: apiextensions.k8s.io/v1beta1 CustomResourceDefinition is deprecated in v1.16+, unavailable in v1.22+; use apiextensions.k8s.io/v1 CustomResourceDefinition
customresourcedefinition.apiextensions.k8s.io/ingressroutes.traefik.containo.us created
customresourcedefinition.apiextensions.k8s.io/ingressroutetcps.traefik.containo.us created
customresourcedefinition.apiextensions.k8s.io/middlewares.traefik.containo.us created
customresourcedefinition.apiextensions.k8s.io/middlewaretcps.traefik.containo.us created
customresourcedefinition.apiextensions.k8s.io/serverstransports.traefik.containo.us created
customresourcedefinition.apiextensions.k8s.io/tlsoptions.traefik.containo.us created
customresourcedefinition.apiextensions.k8s.io/traefikservices.traefik.containo.us created
customresourcedefinition.apiextensions.k8s.io/tlsstores.traefik.containo.us created
customresourcedefinition.apiextensions.k8s.io/ingressrouteudps.traefik.containo.us created

2.创建RBAC权限

（1）traefik-rbac.yaml

[root@k8s-master 2]# cat traefik-rbac.yaml
apiVersion: v1
kind: ServiceAccount
metadata:
  name: traefik-ingress-controller
  namespace: kube-system
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: traefik-ingress-controller
rules:
  - apiGroups:
      - ""
    resources:
      - services
      - endpoints
      - secrets
    verbs:
      - get
      - list
      - watch
  - apiGroups:
      - extensions
      - networking.k8s.io
    resources:
      - ingresses
      - ingressclasses
    verbs:
      - get
      - list
      - watch
  - apiGroups:
      - extensions
    resources:
      - ingresses/status
    verbs:
      - update
  - apiGroups:
      - traefik.containo.us
    resources:
      - middlewares
      - middlewaretcps
      - serverstransports
      - ingressroutes
      - traefikservices
      - ingressroutetcps
      - ingressrouteudps
      - tlsoptions
      - tlsstores
    verbs:
      - get
      - list
      - watch
---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
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

（2）创建

[root@k8s-master 2]# kubectl create -f traefik-rbac.yaml
serviceaccount/traefik-ingress-controller created
clusterrole.rbac.authorization.k8s.io/traefik-ingress-controller created
clusterrolebinding.rbac.authorization.k8s.io/traefik-ingress-controller created

3.创建configMap配置

（1）traefik-config.yaml

[root@k8s-master 2]# cat traefik-config.yaml
kind: ConfigMap
apiVersion: v1
metadata:
  name: traefik-config
  namespace: kube-system
data:
  traefik.yaml: |-
    serversTransport:
      insecureSkipVerify: true  ## 忽略验证代理服务的 TLS 证书
    api:
      insecure: true            ## 允许 HTTP 方式访问 API
      dashboard: true           ## 启用 Dashboard UI
      debug: true               ## 启用 Debug 模式
    metrics:
      prometheus: metrics       ## 配置 Prometheus 监控指标数据
    entryPoints:
      web:
        address: ":80"          ## 配置 80 端口，并设置入口名称为 web
      websecure:
        address: ":443"         ## 配置 443 端口，并设置入口名称为 websecure
      traefik:
        address: ":8090"        ## 配置 8090 端口，并设置入口名称为 dashboard
      metrics:
        address: ":8082"        ## 配置 8082 端口，作为metrics收集入口
      tcpep:
        address: ":8000"        ## 配置 8000 端口，作为tcp入口
      udpep:
        address: ":9000/udp"    ## 配置 9000 端口，作为udp入口
    providers:
      kubernetescrd:            ## 启用 Kubernetes CRD 方式来配置路由规则
        ingressclass: traefik-v2.5
      kubernetesingress:        ## 启动 Kubernetes Ingress 方式来配置路由规则
        ingressclass: traefik-v2.5
    log:
      filePath: "/etc/traefik/logs/traefik.log"              ## 设置调试日志文件存储路径，如果为空则输出到控制台
      level: error                ## 设置调试日志级别
      format: json                ## 设置调试日志格式
    accessLog:
      filePath: "/etc/traefik/logs/access.log"              ## 设置访问日志文件存储路径，如果为空则输出到控制台
      format: json              
      bufferingSize: 0         
      filters:
        retryAttempts: true     ## 设置代理访问重试失败时，保留访问日志
        minDuration: 10         ## 设置保留请求时间超过指定持续时间的访问日志
      fields:                   ## 设置访问日志中的字段是否保留（keep 保留、drop 不保留）
        defaultMode: keep       ## 设置默认保留访问日志字段
        names:                  ## 针对访问日志特别字段特别配置保留模式
          ClientUsername: drop
        headers:                ## 设置 Header 中字段是否保留
          defaultMode: keep     ## 设置默认保留 Header 中字段
          names:                ## 针对 Header 中特别字段特别配置保留模式
            User-Agent: redact
            Authorization: drop
            Content-Type: keep

（2）创建

[root@k8s-master 2]# kubectl create -f traefik-config.yaml
configmap/traefik-config created

4.创建traefik service

（1）traefik-service.yaml

[root@k8s-master 2]# cat traefik-service.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: traefik-v2
  namespace: kube-system
  labels:
    app: traefik-v2
spec:
  replicas: 2
  selector:
    matchLabels:
      app: traefik-v2
  template:
    metadata:
      labels:
        app: traefik-v2
    spec:
      serviceAccountName: traefik-ingress-controller
      terminationGracePeriodSeconds: 1
      containers:
        - name: traefik-v2
          image: 172.16.10.158:85/traefik
          args:
            - --configfile=/config/traefik.yaml
          ports:
            - name: web
              containerPort: 80
              hostPort: 80          
            - name: websecure
              containerPort: 443
              hostPort: 443         
            - name: admin
              containerPort: 8090
            - name: tcpep
              containerPort: 8000
            - name: udpep
              containerPort: 9000
          resources:
            limits:
              cpu: 500m
              memory: 1024Mi
            requests:
              cpu: 300m
              memory: 1024Mi
          securityContext:
            capabilities:             
              drop:
                - ALL
              add:
                - NET_BIND_SERVICE
          volumeMounts:
          - mountPath: "/config"
            name: "config"
          - mountPath: /etc/traefik/logs
            name: logdir
          - mountPath: /etc/localtime
            name: timezone
            readOnly: true
      volumes:
        - name: config
          configMap:
            name: traefik-config
        - name: logdir
          hostPath:
            path: /data/traefik/logs
            type: "DirectoryOrCreate"
        - name: timezone
          hostPath:
            path: /etc/localtime
            type: File
      tolerations:
        - operator: "Exists"      
      hostNetwork: true 
---
apiVersion: v1
kind: Service
metadata:
  name: traefik-v2
  namespace: kube-system
spec:
  type: LoadBalancer
  selector:
    app: traefik-v2
  ports:
    - protocol: TCP
      port: 80
      name: web
      targetPort: 80
    - protocol: TCP
      port: 443
      name: websecure
      targetPort: 443
    - protocol: TCP
      port: 8090
      name: admin
      targetPort: 8090
    - protocol: TCP
      port: 8000
      name: tcpep
      targetPort: 8000

（2）创建

[root@k8s-master 2]# kubectl create -f traefik-service.yaml
deployment.apps/traefik-v2 created
service/traefik-v2 created

四、配置Dashboard路由

1、dashboard-route.yaml

[root@k8s-master 2]# cat dashboard-route.yaml
apiVersion: traefik.containo.us/v1alpha1
kind: IngressRoute
metadata:
  name: dashboard-route
  namespace: kube-system
  annotations:
    kubernetes.io/ingress.class: traefik-v2.5
spec:
  entryPoints:
    - web
  routes:
  - match: Host(`dashboard.test.com`) && PathPrefix(`/`)
    kind: Rule
    services:
    - name: traefik-v2
      port: 8090

2、编辑本机hosts文件

添加ip域名