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Add example for changing the port used by traefik to connect to a service

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Robert Baker 2019-10-28 07:50:06 -07:00 committed by Traefiker Bot
parent 8f000423ed
commit f790b9aa54
3 changed files with 139 additions and 115 deletions
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21
docs/content/routing/providers/docker.md
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@ -37,6 +37,27 @@ Attach labels to your containers and let Traefik do the rest!
- traefik.http.routers.my-container.rule=Host(`mydomain.com`) - traefik.http.routers.my-container.rule=Host(`mydomain.com`)
``` ```
??? example "Specify a Custom Port for the Container"
Forward requests for `http://mydomain.com` to `http://<private IP of container>:12345`:
```yaml
version: "3"
services:
my-container:
# ...
labels:
- traefik.http.routers.my-container.rule=Host(`mydomain.com`)
# Tell Traefik to use the port 12345 to connect to `my-container`
- traefik.http.services.my-service.loadbalancer.server.port=12345
```
!!! important "Traefik Connecting to the Wrong Port: `HTTP/502 Gateway Error`"
By default, Traefik uses the first exposed port of a container.
Setting the label `raefik.http.services.xxx.loadbalancer.server.port`
overrides that behavior.
??? example "Configuring Docker Swarm & Deploying / Exposing Services" ??? example "Configuring Docker Swarm & Deploying / Exposing Services"
Enabling the docker provider (Swarm Mode) Enabling the docker provider (Swarm Mode)

3
docs/content/routing/services/.markdownlint.json
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@ -1,4 +1,5 @@
{ {
"extends": "../../../.markdownlint.json", "extends": "../../../.markdownlint.json",
"MD024": false "MD024": false,
"MD046": false
} }

20
docs/content/routing/services/index.md
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@ -7,7 +7,7 @@ Configuring How to Reach the Services
The `Services` are responsible for configuring how to reach the actual services that will eventually handle the incoming requests. The `Services` are responsible for configuring how to reach the actual services that will eventually handle the incoming requests.
## Configuration Example ## Configuration Examples
??? example "Declaring an HTTP Service with Two Servers -- Using the [File Provider](../../providers/file.md)" ??? example "Declaring an HTTP Service with Two Servers -- Using the [File Provider](../../providers/file.md)"
@ -17,9 +17,9 @@ The `Services` are responsible for configuring how to reach the actual services
[http.services.my-service.loadBalancer] [http.services.my-service.loadBalancer]
[[http.services.my-service.loadBalancer.servers]] [[http.services.my-service.loadBalancer.servers]]
url = "http://private-ip-server-1/" url = "http://<private-ip-server-1>:<private-port-server-1>/"
[[http.services.my-service.loadBalancer.servers]] [[http.services.my-service.loadBalancer.servers]]
url = "http://private-ip-server-2/" url = "http://<private-ip-server-2>:<private-port-server-2>/"
``` ```
```yaml tab="YAML" ```yaml tab="YAML"
@ -29,8 +29,8 @@ The `Services` are responsible for configuring how to reach the actual services
my-service: my-service:
loadBalancer: loadBalancer:
servers: servers:
- url: "http://private-ip-server-1/" - url: "http://<private-ip-server-1>:<private-port-server-1>/"
- url: "http://private-ip-server-2/" - url: "http://<private-ip-server-2>:<private-port-server-2>/"
``` ```
??? example "Declaring a TCP Service with Two Servers -- Using the [File Provider](../../providers/file.md)" ??? example "Declaring a TCP Service with Two Servers -- Using the [File Provider](../../providers/file.md)"
@ -40,9 +40,9 @@ The `Services` are responsible for configuring how to reach the actual services
[tcp.services] [tcp.services]
[tcp.services.my-service.loadBalancer] [tcp.services.my-service.loadBalancer]
[[tcp.services.my-service.loadBalancer.servers]] [[tcp.services.my-service.loadBalancer.servers]]
address = "xx.xx.xx.xx:xx" address = "<private-ip-server-1>:<private-port-server-1>"
[[tcp.services.my-service.loadBalancer.servers]] [[tcp.services.my-service.loadBalancer.servers]]
address = "xx.xx.xx.xx:xx" address = "<private-ip-server-2>:<private-port-server-2>"
``` ```
```yaml tab="YAML" ```yaml tab="YAML"
@ -51,8 +51,8 @@ The `Services` are responsible for configuring how to reach the actual services
my-service: my-service:
loadBalancer: loadBalancer:
servers: servers:
- address: "xx.xx.xx.xx:xx" - address: "<private-ip-server-1>:<private-port-server-1>"
- address: "xx.xx.xx.xx:xx" - address: "<private-ip-server-2>:<private-port-server-2>"
``` ```
## Configuring HTTP Services ## Configuring HTTP Services
@ -61,6 +61,8 @@ The `Services` are responsible for configuring how to reach the actual services
The load balancers are able to load balance the requests between multiple instances of your programs. The load balancers are able to load balance the requests between multiple instances of your programs.
Each service has a load-balancer, even if there is only one server to forward traffic to.
??? example "Declaring a Service with Two Servers (with Load Balancing) -- Using the [File Provider](../../providers/file.md)" ??? example "Declaring a Service with Two Servers (with Load Balancing) -- Using the [File Provider](../../providers/file.md)"
```toml tab="TOML" ```toml tab="TOML"