[Internal Component] Skip verifying existing docker files after environment is resolved (Azure#29021)

* skip validate docker file when environment is resolved

* remove useless code

Author: lalala123123

sdk/ml/azure-ai-ml/azure/ai/ml/_internal/entities/environment.py

@@ -35,6 +35,7 @@ def __init__(
         self.name = name
         self.version = version
         self.python = python
+        self._docker_file_resolved = False
 
     @staticmethod
     def _parse_file_path(value: str) -> str:
@@ -75,7 +76,11 @@ def _validate_docker_section(self, base_path: str, skip_path_validation: bool) -
             return validation_result
         dockerfile_file = self.docker[self.BUILD][self.DOCKERFILE]
         dockerfile_file = self._parse_file_path(dockerfile_file)
-        if not skip_path_validation and not (Path(base_path) / dockerfile_file).is_file():
+        if (
+            not self._docker_file_resolved
+            and not skip_path_validation
+            and not (Path(base_path) / dockerfile_file).is_file()
+        ):
             validation_result.append_error(
                 yaml_path=f"docker.{self.BUILD}.{self.DOCKERFILE}",
                 message=f"Dockerfile not exists: {dockerfile_file}",
@@ -128,6 +133,7 @@ def _resolve_docker_section(self, base_path: Union[Path, str]) -> None:
         dockerfile_file = self._parse_file_path(dockerfile_file)
         with open(Path(base_path) / dockerfile_file, "r") as f:
             self.docker[self.BUILD][self.DOCKERFILE] = f.read()
+            self._docker_file_resolved = True
         return
 
     def resolve(self, base_path: Union[Path, str]) -> None:

sdk/ml/azure-ai-ml/tests/internal/unittests/test_component.py

@@ -334,6 +334,9 @@ def test_environment_dependencies_resolve(self, yaml_path: str, expected_dict: D
         component.environment.resolve(component._base_path)
         rest_obj = component._to_rest_object()
         assert rest_obj.properties.component_spec["environment"] == expected_dict
+        assert component.environment._validate_docker_section(
+            base_path=component.base_path, skip_path_validation=False
+        ).passed
 
     @pytest.mark.parametrize(
         "yaml_path,invalid_field",