Merge pull request #2893 from DMaxter/main

app: fix headless mode not running

Author: illume

app/electron/main.ts

@@ -1398,9 +1398,14 @@ function attachServerEventHandlers(serverProcess: ChildProcessWithoutNullStreams
 }
 
 if (isHeadlessMode) {
-  serverProcess = startServer(['-html-static-dir', path.join(process.resourcesPath, './frontend')]);
-  attachServerEventHandlers(serverProcess);
-  shell.openExternal(`http://localhost:${defaultPort}`);
+  startServer(['-html-static-dir', path.join(process.resourcesPath, './frontend')]).then(
+    serverProcess => {
+      attachServerEventHandlers(serverProcess);
+
+      // Give 1s for backend to start
+      setTimeout(() => shell.openExternal(`http://localhost:${defaultPort}`), 1000);
+    }
+  );
 } else {
   startElecron();
 }

backend/cmd/headlamp.go

@@ -930,6 +930,23 @@ func (c *HeadlampConfig) OIDCTokenRefreshMiddleware(next http.Handler) http.Hand
 }
 
 func StartHeadlampServer(config *HeadlampConfig) {
+	// Copy static files as squashFS is read-only (AppImage)
+	if config.staticDir != "" {
+		dir, err := os.MkdirTemp(os.TempDir(), ".headlamp")
+		if err != nil {
+			logger.Log(logger.LevelError, nil, err, "Failed to create static dir")
+			os.Exit(1)
+		}
+
+		err = os.CopyFS(dir, os.DirFS(config.staticDir))
+		if err != nil {
+			logger.Log(logger.LevelError, nil, err, "Failed to copy files from static dir")
+			os.Exit(1)
+		}
+
+		config.staticDir = dir
+	}
+
 	handler := createHeadlampHandler(config)
 
 	handler = config.OIDCTokenRefreshMiddleware(handler)