oidc_provider: fix error trying to create RSA Key before migrations are run

passbook/oidc_provider/apps.py

@@ -2,6 +2,7 @@
 from logging import getLogger
 
 from django.apps import AppConfig
+from django.db.utils import InternalError, OperationalError, ProgrammingError
 from django.urls import include, path
 
 LOGGER = getLogger(__name__)
@@ -14,13 +15,16 @@ class PassbookOIDCProviderConfig(AppConfig):
     verbose_name = 'passbook OIDC Provider'
 
     def ready(self):
-        from Cryptodome.PublicKey import RSA
-        from oidc_provider.models import RSAKey
-        if not RSAKey.objects.exists():
-            key = RSA.generate(2048)
-            rsakey = RSAKey(key=key.exportKey('PEM').decode('utf8'))
-            rsakey.save()
-            LOGGER.info("Created key")
+        try:
+            from Cryptodome.PublicKey import RSA
+            from oidc_provider.models import RSAKey
+            if not RSAKey.objects.exists():
+                key = RSA.generate(2048)
+                rsakey = RSAKey(key=key.exportKey('PEM').decode('utf8'))
+                rsakey.save()
+                LOGGER.info("Created key")
+        except (OperationalError, ProgrammingError, InternalError):
+            pass
         from passbook.root import urls
         urls.urlpatterns.append(
             path('application/oidc/', include('oidc_provider.urls', namespace='oidc_provider')),