fix: Pass through no-API shutdown exit code

Without passing through the exit code a non-zero exit code was returned
on a successful no-API shutdown.

Signed-off-by: Jonathan Woollett-Light <[email protected]>

Author: Jonathan Woollett-Light

src/firecracker/src/main.rs

@@ -83,6 +83,7 @@ impl From<MainError> for ExitCode {
             MainError::InvalidLogLevel(_) => FcExitCode::BadConfiguration,
             MainError::RunWithApi(ApiServerError::MicroVMStoppedWithoutError(code)) => code,
             MainError::RunWithApi(ApiServerError::MicroVMStoppedWithError(code)) => code,
+            MainError::RunWithoutApiError(RunWithoutApiError::Shutdown(code)) => code,
             _ => FcExitCode::GenericError,
         };
 

tests/framework/vm_config.json

@@ -1,33 +1,34 @@
 {
-  "boot-source": {
-    "kernel_image_path": "vmlinux.bin",
-    "boot_args": "console=ttyS0 reboot=k panic=1 pci=off",
-    "initrd_path": null
-  },
-  "drives": [
-    {
-      "drive_id": "rootfs",
-      "path_on_host": "bionic.rootfs.ext4",
-      "is_root_device": true,
-      "partuuid": null,
-      "is_read_only": false,
-      "cache_type": "Unsafe",
-      "io_engine": "Sync",
-      "rate_limiter": null
-    }
-  ],
-  "machine-config": {
-    "vcpu_count": 2,
-    "mem_size_mib": 1024,
-    "smt": false,
-    "track_dirty_pages": false
-  },
-  "cpu-config": null,
-  "balloon": null,
-  "network-interfaces": [],
-  "vsock": null,
-  "logger": null,
-  "metrics": null,
-  "mmds-config": null,
-  "entropy": null
-}
+    "boot-source": {
+      "kernel_image_path": "vmlinux.bin",
+      "boot_args": "console=ttyS0 reboot=k panic=1 pci=off",
+      "initrd_path": null
+    },
+    "drives": [
+      {
+        "drive_id": "rootfs",
+        "path_on_host": "bionic.rootfs.ext4",
+        "is_root_device": true,
+        "partuuid": null,
+        "is_read_only": false,
+        "cache_type": "Unsafe",
+        "io_engine": "Sync",
+        "rate_limiter": null
+      }
+    ],
+    "machine-config": {
+      "vcpu_count": 2,
+      "mem_size_mib": 1024,
+      "smt": false,
+      "track_dirty_pages": false
+    },
+    "cpu-config": null,
+    "balloon": null,
+    "network-interfaces": [],
+    "vsock": null,
+    "logger": null,
+    "metrics": null,
+    "mmds-config": null,
+    "entropy": null
+  }
+  

tests/framework/vm_config_network.json

@@ -0,0 +1,42 @@
+{
+    "boot-source": {
+        "kernel_image_path": "vmlinux.bin",
+        "boot_args": "console=ttyS0 reboot=k panic=1 pci=off",
+        "initrd_path": null
+    },
+    "drives": [
+        {
+        "drive_id": "rootfs",
+        "path_on_host": "bionic.rootfs.ext4",
+        "is_root_device": true,
+        "partuuid": null,
+        "is_read_only": false,
+        "cache_type": "Unsafe",
+        "io_engine": "Sync",
+        "rate_limiter": null
+        }
+    ],
+    "machine-config": {
+        "vcpu_count": 2,
+        "mem_size_mib": 1024,
+        "smt": false,
+        "track_dirty_pages": false
+    },
+    "cpu-config": null,
+    "balloon": null,
+    "network-interfaces": [
+        {
+            "iface_id": "1",
+            "host_dev_name": "tap0",
+            "guest_mac": "06:00:c0:a8:00:02",
+            "rx_rate_limiter": null,
+            "tx_rate_limiter": null
+        }
+    ],
+    "vsock": null,
+    "logger": null,
+    "metrics": null,
+    "mmds-config": null,
+    "entropy": null
+  }
+  

tests/integration_tests/functional/test_cmd_line_start.py

@@ -7,6 +7,7 @@
 import platform
 import re
 import shutil
+import time
 from pathlib import Path
 
 import pytest
@@ -156,6 +157,30 @@ def test_config_start_no_api(uvm_plain, vm_config_file):
     )
 
 
+@pytest.mark.parametrize("vm_config_file", ["framework/vm_config_network.json"])
+def test_config_start_no_api_exit(uvm_plain, vm_config_file):
+    """
+    Test microvm exit when API server is disabled.
+    """
+    test_microvm = uvm_plain
+    _configure_vm_from_json(test_microvm, vm_config_file)
+    _configure_network_interface(test_microvm)
+    test_microvm.jailer.extra_args.update({"no-api": None})
+
+    test_microvm.spawn()  # Start Firecracker and MicroVM
+    
+    time.sleep(3)
+    
+    test_microvm.ssh.run("reboot")  # Exit
+
+    time.sleep(3)
+
+    # Check error log
+    test_microvm.check_log_message(
+        "RunWithoutApiError error: MicroVMStopped without an error: Ok"
+    )
+
+
 @pytest.mark.parametrize(
     "vm_config_file",
     [