127 lines
4.3 KiB
Markdown
127 lines
4.3 KiB
Markdown
---
|
|
title: "Traefik Ingress"
|
|
description: "A guide to integrating Authelia with the Traefik Kubernetes Ingress."
|
|
lead: "A guide to integrating Authelia with the Traefik Kubernetes Ingress."
|
|
date: 2022-05-15T13:52:27+10:00
|
|
draft: false
|
|
images: []
|
|
menu:
|
|
integration:
|
|
parent: "kubernetes"
|
|
weight: 520
|
|
toc: true
|
|
---
|
|
|
|
We officially support the Traefik 2.x Kubernetes ingress controllers. These come in two flavors:
|
|
|
|
* [Traefik Kubernetes Ingress](https://doc.traefik.io/traefik/providers/kubernetes-ingress/)
|
|
* [Traefik Kubernetes CRD](https://doc.traefik.io/traefik/providers/kubernetes-crd/)
|
|
|
|
The [Traefik documentation](../proxies/traefik.md) may also be useful for crafting advanced annotations to use with
|
|
this ingress even though it's not specific to Kubernetes.
|
|
|
|
## Special Notes
|
|
|
|
### Cross-Namespace Resources
|
|
|
|
Depending on your Traefik version you may be required to configure the
|
|
[allowCrossNamespace](https://doc.traefik.io/traefik/providers/kubernetes-crd/#allowcrossnamespace) to reuse a
|
|
[Middleware] from a namespace different to the Ingress or IngressRoute. Alternatively you can create the [Middleware] in
|
|
every namespace you need to use it.
|
|
|
|
## Middleware
|
|
|
|
Regardless if you're using the [Traefik Kubernetes Ingress] or purely the [Traefik Kubernetes CRD], you must configure
|
|
the [Traefik Kubernetes CRD] as far as we're aware at this time in order to configure a [ForwardAuth] [Middleware].
|
|
|
|
This is an example [Middleware] manifest. This eample assumes that you have deployed an Authelia pod and you have
|
|
configured it to be served on the URL `https://auth.example.com` and there is a Kubernetes Service with the name
|
|
`authelia` in the `default` namespace with TCP port `80` configured to route to the Authelia pod's HTTP port and that
|
|
your cluster is configured with the default DNS domain name of `cluster.local`.
|
|
|
|
```yaml
|
|
apiVersion: traefik.containo.us/v1alpha1
|
|
kind: Middleware
|
|
metadata:
|
|
labels:
|
|
app.kubernetes.io/instance: authelia
|
|
app.kubernetes.io/name: authelia
|
|
argocd.argoproj.io/instance: authelia
|
|
name: forwardauth-authelia
|
|
namespace: default
|
|
spec:
|
|
forwardAuth:
|
|
address: http://authelia.default.svc.cluster.local/api/verify?rd=https%3A%2F%2Fauth.example.com%2F
|
|
authResponseHeaders:
|
|
- Remote-User
|
|
- Remote-Name
|
|
- Remote-Email
|
|
- Remote-Groups
|
|
```
|
|
|
|
## Ingress
|
|
|
|
This is an example Ingress manifest which uses the above [Middleware](#middleware). This example assumes you have an
|
|
application you wish to serve on `https://app.example.com` and there is a Kubernetes Service with the name `app` in the
|
|
`default` namespace with TCP port `80` configured to route to the application pod's HTTP port.
|
|
|
|
```yaml
|
|
apiVersion: networking.k8s.io/v1
|
|
kind: Ingress
|
|
metadata:
|
|
name: app
|
|
namespace: default
|
|
annotations:
|
|
traefik.ingress.kubernetes.io/router.entrypoints: websecure
|
|
traefik.ingress.kubernetes.io/router.middlewares: default-forwardauth-authelia@kubernetescrd
|
|
traefik.ingress.kubernetes.io/router.tls: "true"
|
|
spec:
|
|
rules:
|
|
- host: app.example.com
|
|
http:
|
|
paths:
|
|
- path: /bar
|
|
pathType: Prefix
|
|
backend:
|
|
service:
|
|
name: app
|
|
port:
|
|
number: 80
|
|
```
|
|
|
|
## IngressRoute
|
|
|
|
This is an example IngressRoute manifest which uses the above [Middleware](#middleware). This example assumes you have an
|
|
application you wish to serve on `https://app.example.com` and there is a Kubernetes Service with the name `app` in the
|
|
`default` namespace with TCP port `80` configured to route to the application pod's HTTP port.
|
|
|
|
```yaml
|
|
apiVersion: traefik.containo.us/v1alpha1
|
|
kind: IngressRoute
|
|
metadata:
|
|
name: app
|
|
namespace: default
|
|
spec:
|
|
entryPoints:
|
|
- websecure
|
|
routes:
|
|
- kind: Rule
|
|
match: Host(`app.example.com`)
|
|
middlewares:
|
|
- name: forwardauth-authelia
|
|
namespace: default
|
|
services:
|
|
- kind: Service
|
|
name: app
|
|
namespace: default
|
|
port: 80
|
|
scheme: http
|
|
strategy: RoundRobin
|
|
weight: 10
|
|
```
|
|
|
|
[Traefik Kubernetes Ingress]: https://doc.traefik.io/traefik/providers/kubernetes-ingress/
|
|
[Traefik Kubernetes CRD]: https://doc.traefik.io/traefik/providers/kubernetes-crd/
|
|
[Middleware]: https://doc.traefik.io/traefik/middlewares/overview/
|
|
[ForwardAuth]: https://doc.traefik.io/traefik/middlewares/http/forwardauth/
|