[Projects] Add Iguazio version validation for adding node selector to project

mlrun/projects/project.py

@@ -78,7 +78,10 @@
     clone_zip,
     get_repo_url,
 )
-from ..utils.helpers import ensure_git_branch, resolve_git_reference_from_source
+from ..utils.helpers import (
+    ensure_git_branch,
+    resolve_git_reference_from_source,
+)
 from ..utils.notifications import CustomNotificationPusher, NotificationTypes
 from .operations import (
     BuildStatus,
@@ -1272,6 +1275,14 @@ def description(self) -> str:
     def description(self, description):
         self.spec.description = description
 
+    @property
+    def default_function_node_selector(self) -> dict:
+        return self.spec.default_function_node_selector
+
+    @default_function_node_selector.setter
+    def default_function_node_selector(self, default_function_node_selector):
+        self.spec.default_function_node_selector = default_function_node_selector
+
     @property
     def default_image(self) -> str:
         return self.spec.default_image

mlrun/utils/helpers.py

@@ -1575,11 +1575,12 @@ def validate_component_version_compatibility(
             component_current_version = mlrun.mlconf.igz_version
             parsed_current_version = mlrun.mlconf.get_parsed_igz_version()
 
-            # ignore pre-release and build metadata, as iguazio version always has them, and we only care about the
-            # major, minor, and patch versions
-            parsed_current_version = semver.VersionInfo.parse(
-                f"{parsed_current_version.major}.{parsed_current_version.minor}.{parsed_current_version.patch}"
-            )
+            if parsed_current_version:
+                # ignore pre-release and build metadata, as iguazio version always has them, and we only care about the
+                # major, minor, and patch versions
+                parsed_current_version = semver.VersionInfo.parse(
+                    f"{parsed_current_version.major}.{parsed_current_version.minor}.{parsed_current_version.patch}"
+                )
         if component_name == "nuclio":
             component_current_version = mlrun.mlconf.nuclio_version
             parsed_current_version = semver.VersionInfo.parse(

server/api/utils/clients/iguazio.py

@@ -752,11 +752,25 @@ def _transform_mlrun_project_to_iguazio_project(
             body["data"]["attributes"]["owner_username"] = project.spec.owner
 
         if project.spec.default_function_node_selector is not None:
-            body["data"]["attributes"]["default_function_node_selector"] = (
-                Client._transform_mlrun_labels_to_iguazio_labels(
-                    project.spec.default_function_node_selector
+            # This feature requires support for project-level default_function_node_selector,
+            # which is available starting from version 3.5.5.
+            # We are adding this validation to maintain backward compatibility with older versions of Iguazio.
+            if mlrun.utils.helpers.validate_component_version_compatibility(
+                "iguazio", "3.5.5"
+            ):
+                body["data"]["attributes"]["default_function_node_selector"] = (
+                    Client._transform_mlrun_labels_to_iguazio_labels(
+                        project.spec.default_function_node_selector
+                    )
                 )
-            )
+            else:
+                logger.debug(
+                    "Omitting project-level default function node selector from Iguazio project, "
+                    "as Iguazio version is insufficient",
+                    igz_version=mlrun.mlconf.get_parsed_igz_version(),
+                    project_name=project.metadata.name,
+                )
+
         return body
 
     @staticmethod

tests/api/utils/clients/test_iguazio.py

@@ -19,6 +19,7 @@
 import http
 import json
 import typing
+import unittest.mock
 
 import deepdiff
 import fastapi
@@ -926,9 +927,14 @@ async def test_format_as_leader_project(
     iguazio_client: server.api.utils.clients.iguazio.Client,
 ):
     project = _generate_project()
-    iguazio_project = await maybe_coroutine(
-        iguazio_client.format_as_leader_project(project)
-    )
+    with unittest.mock.patch(
+        "mlrun.utils.helpers.validate_component_version_compatibility",
+        return_value=True,
+    ):
+        iguazio_project = await maybe_coroutine(
+            iguazio_client.format_as_leader_project(project)
+        )
+
     assert (
         deepdiff.DeepDiff(
             _build_project_response(iguazio_client, project, with_mlrun_project=True),

tests/projects/test_project.py

@@ -1262,7 +1262,7 @@ def test_function_receives_project_default_function_node_selector():
     )
     assert non_enriched_function.spec.node_selector == {}
 
-    proj1.spec.default_function_node_selector = default_function_node_selector
+    proj1.default_function_node_selector = default_function_node_selector
     enriched_function = proj1.get_function("func", enrich=True)
     assert enriched_function.spec.node_selector == default_function_node_selector