feature: Support specifying env-vars when creating model from model package (#3581)

* feature: support specifying env-vars when creating model from model package

* Updating unit test

Co-authored-by: Saumitra Vikram <saumitv@amazon.com>

Author: saumitravikram

src/sagemaker/model.py

@@ -1620,6 +1620,9 @@ def _create_sagemaker_model(self, *args, **kwargs):  # pylint: disable=unused-ar
 
         container_def = {"ModelPackageName": model_package_name}
 
+        if self.env != {}:
+            container_def["Environment"] = self.env
+
         self._ensure_base_name_if_needed(model_package_name.split("/")[-1])
         self._set_model_name_if_needed()
 

tests/unit/sagemaker/model/test_model_package.py

@@ -115,6 +115,32 @@ def test_create_sagemaker_model_uses_model_name(name_from_base, sagemaker_sessio
     )
 
 
+def test_create_sagemaker_model_include_environment_variable(sagemaker_session):
+    model_name = "my-model"
+    model_package_name = "my-model-package"
+    env_key = "env_key"
+    env_value = "env_value"
+    environment = {env_key: env_value}
+
+    model_package = ModelPackage(
+        role="role",
+        name=model_name,
+        model_package_arn=model_package_name,
+        env=environment,
+        sagemaker_session=sagemaker_session,
+    )
+
+    model_package._create_sagemaker_model()
+
+    sagemaker_session.create_model.assert_called_with(
+        model_name,
+        "role",
+        {"ModelPackageName": model_package_name, "Environment": environment},
+        vpc_config=None,
+        enable_network_isolation=False,
+    )
+
+
 @patch("sagemaker.utils.name_from_base")
 def test_create_sagemaker_model_generates_model_name(name_from_base, sagemaker_session):
     model_package_name = "my-model-package"