outposts/proxy: add X-authentik-meta-version

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

Dockerfile

@@ -40,7 +40,6 @@ COPY --from=website-builder /work/website/help/ /work/website/help/
 
 COPY ./cmd /work/cmd
 COPY ./web/static.go /work/web/static.go
-COPY ./website/static.go /work/website/static.go
 COPY ./internal /work/internal
 COPY ./go.mod /work/go.mod
 COPY ./go.sum /work/go.sum

internal/outpost/proxyv2/application/mode_common.go

@@ -5,6 +5,8 @@ import (
 	"fmt"
 	"net/http"
 	"strings"
+
+	"goauthentik.io/internal/constants"
 )
 
 func (a *Application) addHeaders(headers http.Header, c *Claims) {
@@ -28,6 +30,7 @@ func (a *Application) addHeaders(headers http.Header, c *Claims) {
 	headers.Set("X-authentik-meta-outpost", a.outpostName)
 	headers.Set("X-authentik-meta-provider", a.proxyConfig.Name)
 	headers.Set("X-authentik-meta-app", a.proxyConfig.AssignedApplicationSlug)
+	headers.Set("X-authentik-meta-version", constants.OutpostUserAgent())
 
 	userAttributes := c.Proxy.UserAttributes
 	// Attempt to set basic auth based on user's attributes

internal/web/static.go

@@ -13,6 +13,7 @@ import (
 
 func (ws *WebServer) configureStatic() {
 	statRouter := ws.lh.NewRoute().Subrouter()
+	statRouter.Use(ws.staticHeaderMiddleware)
 	indexLessRouter := statRouter.NewRoute().Subrouter()
 	indexLessRouter.Use(web.DisableIndex)
 	// Media files, always local

website/docs/providers/proxy/proxy.md

@@ -42,6 +42,10 @@ Besides these user-specific headers, some application specific headers are also
 
     The authentik application's slug.
 
+- X-authentik-meta-version: `authentik-outpost@1.2.3 (build=tagged)`
+
+    The authentik outpost's version.
+
 # HTTPS
 
 The outpost listens on both 9000 for HTTP and 9443 for HTTPS.