[blobserve] Allow a repo name with ':' in path prefix

Allows images like `myregistry.example.com:5000/myimage:mytag`

Author: corneliusludmann

components/blobserve/pkg/blobserve/blobserve.go

@@ -75,7 +75,7 @@ func NewServer(cfg Config, resolver ResolverProvider) (*Server, error) {
 // Serve serves the registry on the given port
 func (reg *Server) Serve() error {
 	r := mux.NewRouter()
-	r.PathPrefix(`/{repo:[a-zA-Z0-9\/\-\.]+}:{tag:[a-z0-9][a-z0-9-\.]+}`).MatcherFunc(isNoWebsocketRequest).HandlerFunc(reg.serve)
+	r.PathPrefix(`/{repo:[a-zA-Z0-9\/\-\.\:]+}:{tag:[a-z0-9][a-z0-9-\.]+}`).MatcherFunc(isNoWebsocketRequest).HandlerFunc(reg.serve)
 	r.NewRoute().HandlerFunc(func(resp http.ResponseWriter, req *http.Request) {
 		log.WithField("path", req.URL.Path).Warn("unmapped request")
 		http.Error(resp, http.StatusText(http.StatusNotFound), http.StatusNotFound)