add providers migration

selfprivacy_api/migrations/providers.py

@@ -0,0 +1,43 @@
+from selfprivacy_api.migrations.migration import Migration
+from selfprivacy_api.utils import ReadUserData, WriteUserData
+
+
+class CreateProviderFields(Migration):
+    """Unhardcode providers"""
+
+    def get_migration_name(self):
+        return "create_provider_fields"
+
+    def get_migration_description(self):
+        return "Add DNS, backup and server provider fields to enable user to choose between different clouds and to make the deployment adapt to these preferences."
+
+    def is_migration_needed(self):
+        try:
+            with ReadUserData() as userdata:
+                return "dns" not in userdata
+        except Exception as e:
+            print(e)
+            return False
+
+    def migrate(self):
+        # Write info about providers to userdata.json
+        try:
+            with WriteUserData() as userdata:
+                userdata["dns"] = {
+                    "provider": "CLOUDFLARE",
+                    "apiToken": userdata["cloudflare"]["apiToken"],
+                }
+                userdata["server"] = {
+                    "provider": "HETZNER",
+                }
+                userdata["backup"] = {
+                    "provider": "BACKBLAZE",
+                    "accountId": userdata["backblaze"]["accountId"],
+                    "accountKey": userdata["backblaze"]["accountKey"],
+                    "bucket": userdata["backblaze"]["bucket"],
+                }
+
+            print("Done")
+        except Exception as e:
+            print(e)
+            print("Error migrating provider fields")