Fix REST server mux for /v1/pems*.

pkg/rest/handlers.go

@@ -46,7 +46,7 @@ const (
 )
 
 var (
-	pemsRegex = regexp.MustCompile("^" + pemsPfx + "/([^/]+)/([^/]+)$")
+	pemsRegex = regexp.MustCompile("^" + pemsPfx + "([^/]+)/([^/]+)$")
 
 	allowedHealthz = map[string]struct{}{
 		http.MethodGet:  struct{}{},
@@ -130,7 +130,7 @@ func (h *pemsHndlr) allPems(
 func (h *pemsHndlr) ServeHTTP(resp http.ResponseWriter, req *http.Request) {
 	now := time.Now()
 
-	if req.URL.Path == pemsPfx {
+	if req.URL.Path == pemsAll {
 		h.allPems(resp, req, now)
 		return
 	}

pkg/rest/server.go

@@ -43,7 +43,8 @@ import (
 
 const (
 	healthzPath = "/v1/healthz"
-	pemsPfx     = "/v1/pems"
+	pemsPfx     = "/v1/pems/"
+	pemsAll     = "/v1/pems"
 )
 
 // Server encapsulates the HTTP server for the REST API.
@@ -158,11 +159,13 @@ func (srv *Server) Start() error {
 		log:     srv.log,
 		version: srv.version,
 	})
-	mux.Handle(pemsPfx, &pemsHndlr{
+	pemsHandler := &pemsHndlr{
 		log:       srv.log,
 		files:     srv.files,
 		crtGetter: srv.crtGetter,
-	})
+	}
+	mux.Handle(pemsPfx, pemsHandler)
+	mux.Handle(pemsAll, pemsHandler)
 	srv.server = http.Server{Handler: mux}
 	go func() {
 		if err := srv.server.Serve(lsnr); err != nil {