updated filepattern regex

src/cache/cache.go

@@ -18,7 +18,7 @@ import (
 	"time"
 )
 
-var filepattern = regexp.MustCompile(`((In)?Release(\.gpg)?|Packages\.(gz|bz2)|Contents-(arm64|armhf|amd64)(\.gz)?)`)
+var filepattern = regexp.MustCompile(`((In)?Release(\.gpg)?|Packages(\.gz|\.bz2)?|Contents-(arm64|armhf|amd64)(\.gz)|Sources.bz2?)`)
 
 // Reader is a generic interface for reading cache entries either from disk or
 // directly attached to a downloader.

src/server/server.go

@@ -64,6 +64,10 @@ func (s *Server) ServeHTTP(w http.ResponseWriter, req *http.Request) {
 		http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
 		return
 	}
+	if req.RequestURI == "/health" {
+		http.Error(w, "OK", http.StatusOK)
+		return
+	}
 	r, err := s.cache.GetReader(rewrite(req.RequestURI), maxAge(req))
 	if err != nil {
 		http.Error(w, err.Error(), http.StatusInternalServerError)