Fix test

Author: rgarcia

cmd/api/api/exec_test.go

@@ -236,7 +236,7 @@ func TestExecWithDebianMinimal(t *testing.T) {
 
 	// Verify the app exited but VM is still usable (key behavior this test validates)
 	logs = collectTestLogs(t, svc, inst.Id, 200)
-	assert.Contains(t, logs, "overlay-init: app exited with code", "App should have exited")
+	assert.Contains(t, logs, "[exec] app exited with code", "App should have exited")
 
 	// Test exec commands work even though the main app (bash) has exited
 	dialer2, err := hypervisor.NewVsockDialer(actualInst.HypervisorType, actualInst.VsockSocket, actualInst.VsockCID)

lib/system/init/mode_exec.go

@@ -59,9 +59,11 @@ func runExecMode(log *Logger, cfg *Config) {
 
 	log.Info("exec", "launching entrypoint")
 
-	// Run the entrypoint
+	// Run the entrypoint without stdin (defaults to /dev/null).
+	// This matches the old shell script behavior where the app ran in background with &
+	// and couldn't read from stdin. Interactive shells like bash will see EOF and exit.
+	// Users interact with the VM via guest-agent exec, not the entrypoint's stdin.
 	appCmd := exec.Command("/bin/sh", "-c", shellCmd)
-	appCmd.Stdin = os.Stdin
 	appCmd.Stdout = os.Stdout
 	appCmd.Stderr = os.Stderr