Traefik 与 Docker¶

启用 Docker 提供者

providers:
  docker: {}

[providers.docker]

--providers.docker=true

为容器附加标签（在 Docker compose 文件中）

services:
  my-container:
    # ...
    labels:
      - traefik.http.routers.my-container.rule=Host(`example.com`)

将发往 http://example.com 的请求转发到 http://<private IP of container>:12345：

services:
  my-container:
    # ...
    labels:
      - traefik.http.routers.my-container.rule=Host(`example.com`)
      # Tell Traefik to use the port 12345 to connect to `my-container`
      - traefik.http.services.my-service.loadbalancer.server.port=12345

将请求转发到容器上的多个端口时，需要使用路由器上的 service 参数引用服务负载均衡器的端口定义。

在此示例中，发往 http://example-a.com 的请求转发到 http://<private IP of container>:8000，同时发往 http://example-b.com 的请求转发到 http://<private IP of container>:9000：

services:
  my-container:
    # ...
    labels:
      - traefik.http.routers.www-router.rule=Host(`example-a.com`)
      - traefik.http.routers.www-router.service=www-service
      - traefik.http.services.www-service.loadbalancer.server.port=8000
      - traefik.http.routers.admin-router.rule=Host(`example-b.com`)
      - traefik.http.routers.admin-router.service=admin-service
      - traefik.http.services.admin-service.loadbalancer.server.port=9000

在 compose 文件中使用标签

labels:
  - "traefik.http.routers.myproxy.rule=Host(`example.net`)"
  # service myservice gets automatically assigned to router myproxy
  - "traefik.http.services.myservice.loadbalancer.server.port=80"

在 compose 文件中使用标签

labels:
  # no service specified or defined and yet one gets automatically created
  # and assigned to router myproxy.
  - "traefik.http.routers.myproxy.rule=Host(`example.net`)"

在 compose 文件中使用标签

labels:
  - traefik.http.routers.www-router.rule=Host(`example-a.com`)
  # Explicit link between the router and the service
  - traefik.http.routers.www-router.service=www-service
  - traefik.http.services.www-service.loadbalancer.server.port=8000

   services:
     my-container:
       # ...
       labels:
         # Declaring a middleware
         - traefik.http.middlewares.my-redirect.redirectscheme.scheme=https
         # Referencing a middleware
         - traefik.http.routers.my-container.middlewares=my-redirect

   services:
     my-container:
       # ...
       labels:
         - "traefik.tcp.routers.my-router.rule=HostSNI(`example.com`)"
         - "traefik.tcp.routers.my-router.tls=true"
         - "traefik.tcp.services.my-service.loadbalancer.server.port=4123"

# ...
# Declaring a middleware
traefik.tcp.middlewares.test-inflightconn.inflightconn.amount=10
# Referencing a middleware
traefik.tcp.routers.my-service.middlewares=test-inflightconn

   services:
     my-container:
       # ...
       labels:
         - "traefik.udp.routers.my-router.entrypoints=udp"
         - "traefik.udp.services.my-service.loadbalancer.server.port=4123"