feat: add --load to docker build (#148)

supports alternative BuildKit drivers

Signed-off-by: Tom Plant <tom@tplant.com.au>

Author: pl4nty

ctfcli/core/image.py

@@ -24,7 +24,9 @@ def __init__(self, name: str, build_path: Optional[Union[str, PathLike]] = None)
             self.built = False
 
     def build(self) -> Optional[str]:
-        docker_build = subprocess.call(["docker", "build", "-t", self.name, "."], cwd=self.build_path.absolute())
+        docker_build = subprocess.call(
+            ["docker", "build", "--load", "-t", self.name, "."], cwd=self.build_path.absolute()
+        )
         if docker_build != 0:
             return
 

tests/core/test_image.py

@@ -56,7 +56,9 @@ def test_build(self, mock_call: MagicMock):
 
         self.assertTrue(image.built)
         self.assertEqual(image_name, "test-challenge")
-        mock_call.assert_called_once_with(["docker", "build", "-t", "test-challenge", "."], cwd=build_path.absolute())
+        mock_call.assert_called_once_with(
+            ["docker", "build", "--load", "-t", "test-challenge", "."], cwd=build_path.absolute()
+        )
 
     @mock.patch("ctfcli.core.image.subprocess.call", return_value=1)
     def test_build_returns_none_if_failed(self, mock_call: MagicMock):
@@ -68,7 +70,9 @@ def test_build_returns_none_if_failed(self, mock_call: MagicMock):
 
         self.assertFalse(image.built)
         self.assertIsNone(image_name)
-        mock_call.assert_called_once_with(["docker", "build", "-t", "test-challenge", "."], cwd=build_path.absolute())
+        mock_call.assert_called_once_with(
+            ["docker", "build", "--load", "-t", "test-challenge", "."], cwd=build_path.absolute()
+        )
 
     @mock.patch("ctfcli.core.image.subprocess.call", return_value=0)
     def test_push_built_image(self, mock_call: MagicMock):
@@ -150,7 +154,7 @@ def test_builds_image_before_push(self, mock_call: MagicMock):
         mock_call.assert_has_calls(
             [
                 call(
-                    ["docker", "build", "-t", "test-challenge", "."],
+                    ["docker", "build", "--load", "-t", "test-challenge", "."],
                     cwd=build_path.absolute(),
                 ),
                 call(
@@ -224,7 +228,7 @@ def test_builds_image_before_export(self, mock_call: MagicMock):
         mock_call.assert_has_calls(
             [
                 call(
-                    ["docker", "build", "-t", "test-challenge", "."],
+                    ["docker", "build", "--load", "-t", "test-challenge", "."],
                     cwd=build_path.absolute(),
                 ),
                 call(