feat: forwardAuth support LogUserHeader

docs/content/middlewares/http/forwardauth.md

@@ -571,3 +571,44 @@ http:
     [http.middlewares.test-auth.forwardAuth.tls]
       insecureSkipVerify: true
 ```
+
+### `headerField`
+
+_Optional_
+
+You can define a header field to store the authenticated user using the `headerField`option.
+
+```yaml tab="Docker & Swarm"
+labels:
+  - "traefik.http.middlewares.test-auth.forwardauth.headerField=X-WebAuth-User"
+```
+
+```yaml tab="Kubernetes"
+apiVersion: traefik.io/v1alpha1
+kind: Middleware
+metadata:
+  name: test-auth
+spec:
+  forwardAuth:
+    # ...
+    headerField: X-WebAuth-User
+```
+
+```json tab="Consul Catalog"
+- "traefik.http.middlewares.test-auth.forwardauth.headerField=X-WebAuth-User"
+```
+
+```yaml tab="File (YAML)"
+http:
+  middlewares:
+    test-auth:
+      forwardAuth:
+        # ...
+        headerField: "X-WebAuth-User"
+```
+
+```toml tab="File (TOML)"
+[http.middlewares.test-auth.forwardAuth]
+  # ...
+  headerField = "X-WebAuth-User"
+```

docs/content/reference/dynamic-configuration/docker-labels.yml

@@ -37,6 +37,7 @@
 - "traefik.http.middlewares.middleware10.forwardauth.authrequestheaders=foobar, foobar"
 - "traefik.http.middlewares.middleware10.forwardauth.authresponseheaders=foobar, foobar"
 - "traefik.http.middlewares.middleware10.forwardauth.authresponseheadersregex=foobar"
+- "traefik.http.middlewares.middleware10.forwardauth.headerfield=foobar"
 - "traefik.http.middlewares.middleware10.forwardauth.tls.ca=foobar"
 - "traefik.http.middlewares.middleware10.forwardauth.tls.caoptional=true"
 - "traefik.http.middlewares.middleware10.forwardauth.tls.cert=foobar"

docs/content/reference/dynamic-configuration/file.toml

@@ -167,6 +167,7 @@
         authResponseHeadersRegex = "foobar"
         authRequestHeaders = ["foobar", "foobar"]
         addAuthCookiesToResponse = ["foobar", "foobar"]
+        headerField = "foobar"
         [http.middlewares.Middleware10.forwardAuth.tls]
           ca = "foobar"
           cert = "foobar"

docs/content/reference/dynamic-configuration/file.yaml

@@ -192,6 +192,7 @@ http:
         addAuthCookiesToResponse:
           - foobar
           - foobar
+        headerField: foobar
     Middleware11:
       grpcWeb:
         allowOrigins:

docs/content/reference/dynamic-configuration/kv-ref.md

@@ -46,6 +46,7 @@ THIS FILE MUST NOT BE EDITED BY HAND
 | `traefik/http/middlewares/Middleware10/forwardAuth/authResponseHeaders/0` | `foobar` |
 | `traefik/http/middlewares/Middleware10/forwardAuth/authResponseHeaders/1` | `foobar` |
 | `traefik/http/middlewares/Middleware10/forwardAuth/authResponseHeadersRegex` | `foobar` |
+| `traefik/http/middlewares/Middleware10/forwardAuth/headerField` | `foobar` |
 | `traefik/http/middlewares/Middleware10/forwardAuth/tls/ca` | `foobar` |
 | `traefik/http/middlewares/Middleware10/forwardAuth/tls/caOptional` | `true` |
 | `traefik/http/middlewares/Middleware10/forwardAuth/tls/cert` | `foobar` |