[sonic-package-manager] Fix YANG validation failure on upgrade when f…

…eature has constraints in YANG model on FEATURE table (sonic-net#2933)

* [sonic-package-manager] Fix YANG validation failure on upgrade when feature has constraints in YANG model on FEATURE table


Signed-off-by: Stepan Blyschak <[email protected]>

sonic_package_manager/manager.py

@@ -44,7 +44,10 @@
 from sonic_package_manager.reference import PackageReference
 from sonic_package_manager.registry import RegistryResolver
 from sonic_package_manager.service_creator import SONIC_CLI_COMMANDS
-from sonic_package_manager.service_creator.creator import ServiceCreator
+from sonic_package_manager.service_creator.creator import (
+    ServiceCreator,
+    run_command
+)
 from sonic_package_manager.service_creator.feature import FeatureRegistry
 from sonic_package_manager.service_creator.sonic_db import (
     INIT_CFG_JSON,
@@ -483,7 +486,7 @@ def uninstall(self, name: str,
         # After all checks are passed we proceed to actual uninstallation
 
         try:
-            self._stop_feature(package)
+            self._disable_feature(package)
             self._uninstall_cli_plugins(package)
             self.service_creator.remove(package, keep_config=keep_config)
             self.service_creator.generate_shutdown_sequence_files(
@@ -934,18 +937,29 @@ def _get_installed_packages_except(self, package: Package) -> Dict[str, Package]
         packages.pop(package.name)
         return packages
 
-    def _start_feature(self, package: Package, block: bool = True):
-        """ Starts the feature and blocks till operation is finished if
-        block argument is set to True.
+    def _stop_feature(self, package: Package):
+        self._systemctl_action(package, 'stop')
 
-        Args:
-            package: Package object of the feature that will be started.
-            block: Whether to block for operation completion.
-        """
+    def _start_feature(self, package: Package):
+        self._systemctl_action(package, 'start')
+
+    def _systemctl_action(self, package: Package, action: str):
+        """ Execute systemctl action for a service. """
+
+        name = package.manifest['service']['name']
+        log.info('Execute systemctl action {} on {} service'.format(action, name))
 
-        self._set_feature_state(package, 'enabled', block)
+        host_service = package.manifest['service']['host-service']
+        asic_service = package.manifest['service']['asic-service']
+        single_instance = host_service or (asic_service and not self.is_multi_npu)
+        multi_instance = asic_service and self.is_multi_npu
+        if single_instance:
+            run_command(['systemctl', action, name])
+        if multi_instance:
+            for npu in range(self.num_npus):
+                run_command(['systemctl', action, f'{name}@{npu}'])
 
-    def _stop_feature(self, package: Package, block: bool = True):
+    def _disable_feature(self, package: Package, block: bool = True):
         """ Stops the feature and blocks till operation is finished if
         block argument is set to True.
 

tests/sonic_package_manager/test_manager.py

@@ -9,6 +9,11 @@
 from sonic_package_manager.errors import *
 from sonic_package_manager.version import Version
 
+@pytest.fixture(autouse=True)
+def mock_run_command():
+    with patch('sonic_package_manager.manager.run_command') as run_command:
+        yield run_command
+
 
 def test_installation_not_installed(package_manager):
     package_manager.install('test-package')