FS: Call IndexDataHooks for custom version string (#112670)

* Add enterprise hooks

* wip...

* undo

* update wire gen

* remove old hook thing

* move build info into seperate func

* align fs context middleware with grafana, setting SignedInUser

* Call IndexDataHooks to get modified build info

* update tests

* go workspace

* idk, reset workspace files or whatever

* conditionally mount license

* support loading decoupled plugins from cdn

---------

Co-authored-by: Ashley Harrison <ashley.harrison@grafana.com>

pkg/services/frontend/context_middleware.go

@@ -6,8 +6,12 @@ import (
 
 	"github.com/grafana/grafana/pkg/infra/log"
 	"github.com/grafana/grafana/pkg/infra/tracing"
+
+	"go.opentelemetry.io/otel/trace"
+
 	"github.com/grafana/grafana/pkg/services/contexthandler/ctxkey"
 	contextmodel "github.com/grafana/grafana/pkg/services/contexthandler/model"
+	"github.com/grafana/grafana/pkg/services/user"
 	"github.com/grafana/grafana/pkg/web"
 )
 
@@ -18,24 +22,38 @@ func (s *frontendService) contextMiddleware() web.Middleware {
 		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 			ctx := r.Context()
 
-			reqContext := &contextmodel.ReqContext{
-				Context: web.FromContext(ctx),
-				Logger:  log.New("context"),
-			}
+			span := trace.SpanFromContext(ctx)
+			ctx = setRequestContext(ctx)
 
-			// inject ReqContext in the context
-			ctx = context.WithValue(ctx, ctxkey.Key{}, reqContext)
-
-			// Set the context for the http.Request.Context
-			// This modifies both r and reqContext.Req since they point to the same value
-			*reqContext.Req = *reqContext.Req.WithContext(ctx)
-
-			traceID := tracing.TraceIDFromContext(ctx, false)
-			if traceID != "" {
-				reqContext.Logger = reqContext.Logger.New("traceID", traceID)
-			}
+			// Preserve the original span so the setRequestContext span doesn't get propagated as a parent of the rest of the request
+			ctx = trace.ContextWithSpan(ctx, span)
 
 			next.ServeHTTP(w, r.WithContext(ctx))
 		})
 	}
 }
+
+func setRequestContext(ctx context.Context) context.Context {
+	ctx, span := tracing.Start(ctx, "setRequestContext")
+	defer span.End()
+
+	reqContext := &contextmodel.ReqContext{
+		Context:      web.FromContext(ctx),
+		Logger:       log.New("context"),
+		SignedInUser: &user.SignedInUser{},
+	}
+
+	// inject ReqContext in the context
+	ctx = context.WithValue(ctx, ctxkey.Key{}, reqContext)
+
+	// Set the context for the http.Request.Context
+	// This modifies both r and reqContext.Req since they point to the same value
+	*reqContext.Req = *reqContext.Req.WithContext(ctx)
+
+	traceID := tracing.TraceIDFromContext(ctx, false)
+	if traceID != "" {
+		reqContext.Logger = reqContext.Logger.New("traceID", traceID)
+	}
+
+	return ctx
+}