Fix: Could not launch a VM without building it locally (#588)

This tests that a VM from the aleph.im network can be downloaded and launched.

Co-authored-by: ajin <[email protected]>

tests/supervisor/test_execution.py

@@ -55,3 +55,41 @@ async def test_create_execution():
 
  await execution.start()
  await execution.stop()
+
+
+@pytest.mark.asyncio
+async def test_create_execution_online():
+ """
+ Create a new VM execution without building it locally and check that it starts properly.
+ """
+
+ # Ensure that the settings are correct and required files present.
+ settings.setup()
+ settings.check()
+
+ # The database is required for the metrics and is currently not optional.
+ engine = metrics.setup_engine()
+ await metrics.create_tables(engine)
+
+ vm_hash = ItemHash("3fc0aa9569da840c43e7bd2033c3c580abb46b007527d6d20f2d4e98e867f7af")
+ message = await get_message(ref=vm_hash)
+
+ execution = VmExecution(
+ vm_hash=vm_hash,
+ message=message.content,
+ original=message.content,
+ snapshot_manager=None,
+ systemd_manager=None,
+ persistent=False,
+ )
+
+ # Downloading the resources required may take some time, limit it to 10 seconds
+ await asyncio.wait_for(execution.prepare(), timeout=30)
+
+ vm = execution.create(vm_id=3, tap_interface=None)
+ # Test that the VM is created correctly. It is not started yet.
+ assert isinstance(vm, AlephFirecrackerProgram)
+ assert vm.vm_id == 3
+
+ await execution.start()
+ await execution.stop()