Add support for runtime service configuration key

https://docs.docker.com/compose/compose-file/05-services/#runtime

Signed-off-by: Povilas Kanapickas <[email protected]>

podman_compose.py

@@ -983,6 +983,8 @@ async def container_to_args(compose, cnt, detached=True):
     platform = cnt.get("platform", None)
     if platform is not None:
         podman_args.extend(["--platform", platform])
+    if cnt.get("runtime", None):
+        podman_args.extend(["--runtime", cnt["runtime"]])
 
     # WIP: healthchecks are still work in progress
     healthcheck = cnt.get("healthcheck", None) or {}

pytests/test_container_to_args.py

@@ -0,0 +1,67 @@
+# SPDX-License-Identifier: GPL-2.0
+
+import unittest
+from unittest import mock
+from podman_compose import container_to_args
+
+
+def create_compose_mock():
+    compose = mock.Mock()
+    compose.project_name = "test_project_name"
+    compose.dirname = "test_dirname"
+    compose.container_names_by_service.get = mock.Mock(return_value=None)
+    compose.prefer_volume_over_mount = False
+    compose.default_net = None
+    compose.networks = {}
+    return compose
+
+
+def get_minimal_container():
+    return {
+        "name": "project_name_service_name1",
+        "service_name": "service_name",
+        "image": "busybox",
+    }
+
+
+class TestContainerToArgs(unittest.TestCase):
+    async def test_minimal(self):
+        c = create_compose_mock()
+
+        cnt = get_minimal_container()
+
+        args = await container_to_args(c, cnt)
+        self.assertEqual(
+            args,
+            [
+                "--name=project_name_service_name1",
+                "-d",
+                "--net",
+                "",
+                "--network-alias",
+                "service_name",
+                "busybox",
+            ],
+        )
+
+    async def test_runtime(self):
+        c = create_compose_mock()
+
+        cnt = get_minimal_container()
+        cnt["runtime"] = "runsc"
+
+        args = await container_to_args(c, cnt)
+        self.assertEqual(
+            args,
+            [
+                "--name=project_name_service_name1",
+                "-d",
+                "--net",
+                "",
+                "--network-alias",
+                "service_name",
+                "--runtime",
+                "runsc",
+                "busybox",
+            ],
+        )