[fix] Update zerotier network name from ow_zt to global

openwisp_controller/config/base/vpn.py

@@ -634,7 +634,7 @@ def auto_client(self, auto_cert=True, template_backend_class=None):
             # call auto_client and update the config
             elif self._is_backend_type('zerotier') and template_backend_class:
                 auto = getattr(template_backend_class, 'zerotier_auto_client')(
-                    name='ow_zt',
+                    name='global',
                     networks=[
                         {'id': self.network_id, 'ifname': f'owzt{self.network_id[-6:]}'}
                     ],

openwisp_controller/config/migrations/0056_ow_zt_to_global.py

@@ -0,0 +1,24 @@
+from django.db import migrations
+
+
+def change_owzt_to_global(apps, schema_editor):
+    Template = apps.get_model('config', 'Template')
+    updated_templates = set()
+    for template in Template.objects.filter(
+        type='vpn', vpn__backend='openwisp_controller.vpn_backends.ZeroTier'
+    ).iterator():
+        if 'zerotier' in template.config:
+            for item in template.config.get('zerotier', []):
+                if item.get('name') == 'ow_zt':
+                    item['name'] = 'global'
+                    updated_templates.add(template)
+    Template.objects.bulk_update(updated_templates, ['config'])
+
+
+class Migration(migrations.Migration):
+    dependencies = [('config', '0055_alter_config_status')]
+
+    operations = [
+        migrations.RunPython(
+            change_owzt_to_global, reverse_code=migrations.RunPython.noop)
+    ]

openwisp_controller/config/tests/test_vpn.py

@@ -1228,7 +1228,7 @@ def test_zerotier_auto_client(self, mock_requests, mock_subprocess):
         for key in context_keys.keys():
             context_keys[key] = '{{%s}}' % context_keys[key]
         expected = template.backend_class.zerotier_auto_client(
-            name='ow_zt',
+            name='global',
             networks=[{'id': vpn.network_id, 'ifname': f'owzt{vpn.network_id[-6:]}'}],
             identity_secret=context_keys['secret'],
         )