T6525: Add default dir for ext-scripts without absolute path

(cherry picked from commit 2f52106)

Author: HollyGurza

smoketest/scripts/cli/test_service_snmp.py

@@ -246,5 +246,19 @@ def test_snmpv3_view_exclude(self):
         for excluded in snmpv3_view_oid_exclude:
             self.assertIn(f'view {snmpv3_view} excluded .{excluded}', tmp)
 
+    def test_snmp_script_extensions(self):
+        extensions = {
+            'default': 'snmp_smoketest_extension_script.sh',
+            'external': '/run/external_snmp_smoketest_extension_script.sh'
+        }
+
+        for key, val in extensions.items():
+            self.cli_set(base_path + ['script-extensions', 'extension-name', key, 'script', val])
+        self.cli_commit()
+
+        self.assertEqual(get_config_value('extend default'), f'/config/user-data/{extensions["default"]}')
+        self.assertEqual(get_config_value('extend external'), extensions["external"])
+
+
 if __name__ == '__main__':
     unittest.main(verbosity=2)

src/conf_mode/service_snmp.py

@@ -39,6 +39,7 @@
 config_file_daemon  = r'/etc/snmp/snmpd.conf'
 config_file_access  = r'/usr/share/snmp/snmpd.conf'
 config_file_user    = r'/var/lib/snmp/snmpd.conf'
+default_script_dir  = r'/config/user-data/'
 systemd_override    = r'/run/systemd/system/snmpd.service.d/override.conf'
 systemd_service     = 'snmpd.service'
 
@@ -83,8 +84,20 @@ def get_config(config=None):
             tmp = {'::1': {'port': '161'}}
             snmp['listen_address'] = dict_merge(tmp, snmp['listen_address'])
 
+    if 'script_extensions' in snmp and 'extension_name' in snmp['script_extensions']:
+        for key, val in snmp['script_extensions']['extension_name'].items():
+            if 'script' not in val:
+                continue
+            script_path = val['script']
+            # if script has not absolute path, use pre configured path
+            if not os.path.isabs(script_path):
+                script_path = os.path.join(default_script_dir, script_path)
+
+            snmp['script_extensions']['extension_name'][key]['script'] = script_path
+
     return snmp
 
+
 def verify(snmp):
     if 'deleted' in snmp:
         return None