36 lines
2.1 KiB
Markdown
36 lines
2.1 KiB
Markdown
# Concepts
|
|
|
|
Everything You Need to Know
|
|
{: .subtitle }
|
|
|
|
## Edge Router
|
|
|
|
Traefik is an _Edge Router_, it means that it's the door to your platform, and that it intercepts and routes every incoming request:
|
|
it knows all the logic and every rule that determine which services handle which requests (based on the [path](../routing/routers/index.md#rule), the [host](../routing/routers/index.md#rule), [headers](../routing/routers/index.md#rule), [and so on](../routing/routers/index.md#rule) ...).
|
|
|
|
|
|
|
|
## Auto Service Discovery
|
|
|
|
Where traditionally edge routers (or reverse proxies) need a configuration file that contains every possible route to your services, Traefik gets them from the services themselves.
|
|
|
|
Deploying your services, you attach information that tells Traefik the characteristics of the requests the services can handle.
|
|
|
|
|
|
|
|
It means that when a service is deployed, Traefik detects it immediately and updates the routing rules in real time.
|
|
The opposite is true: when you remove a service from your infrastructure, the route will disappear accordingly.
|
|
|
|
You no longer need to create and synchronize configuration files cluttered with IP addresses or other rules.
|
|
|
|
!!! info "Many different rules"
|
|
|
|
In the example above, we used the request [path](../routing/routers/index.md#rule) to determine which service was in charge, but of course you can use many other different [rules](../routing/routers/index.md#rule).
|
|
|
|
!!! info "Updating the requests"
|
|
|
|
In the [middleware](../middlewares/overview.md) section, you can learn about how to update the requests before forwarding them to the services.
|
|
|
|
!!! question "How does Traefik discover the services?"
|
|
|
|
Traefik is able to use your cluster API to discover the services and read the attached information. In Traefik, these connectors are called [providers](../providers/overview.md) because they _provide_ the configuration to Traefik. To learn more about them, read the [provider overview](../providers/overview.md) section.
|