feat:add apollo configuration to load env file

api/configs/app_config.py

@@ -1,11 +1,51 @@
-from pydantic_settings import SettingsConfigDict
+import logging
+from typing import Any
 
-from configs.deploy import DeploymentConfig
-from configs.enterprise import EnterpriseFeatureConfig
-from configs.extra import ExtraServiceConfig
-from configs.feature import FeatureConfig
-from configs.middleware import MiddlewareConfig
-from configs.packaging import PackagingInfo
+from pydantic.fields import FieldInfo
+from pydantic_settings import BaseSettings, PydanticBaseSettingsSource, SettingsConfigDict
+
+from .deploy import DeploymentConfig
+from .enterprise import EnterpriseFeatureConfig
+from .extra import ExtraServiceConfig
+from .feature import FeatureConfig
+from .middleware import MiddlewareConfig
+from .packaging import PackagingInfo
+from .remote_settings_sources import RemoteSettingsSource, RemoteSettingsSourceConfig, RemoteSettingsSourceName
+from .remote_settings_sources.apollo import ApolloSettingsSource
+
+logger = logging.getLogger(__name__)
+
+
+class RemoteSettingsSourceFactory(PydanticBaseSettingsSource):
+    def __init__(self, settings_cls: type[BaseSettings]):
+        super().__init__(settings_cls)
+
+    def get_field_value(self, field: FieldInfo, field_name: str) -> tuple[Any, str, bool]:
+        raise NotImplementedError
+
+    def __call__(self) -> dict[str, Any]:
+        current_state = self.current_state
+        remote_source_name = current_state.get("REMOTE_SETTINGS_SOURCE_NAME")
+        if not remote_source_name:
+            return {}
+
+        remote_source: RemoteSettingsSource | None = None
+        match remote_source_name:
+            case RemoteSettingsSourceName.APOLLO:
+                remote_source = ApolloSettingsSource(current_state)
+            case _:
+                logger.warning(f"Unsupported remote source: {remote_source_name}")
+                return {}
+
+        d: dict[str, Any] = {}
+
+        for field_name, field in self.settings_cls.model_fields.items():
+            field_value, field_key, value_is_complex = remote_source.get_field_value(field, field_name)
+            field_value = remote_source.prepare_field_value(field_name, field, field_value, value_is_complex)
+            if field_value is not None:
+                d[field_key] = field_value
+
+        return d
 
 
 class DifyConfig(
@@ -19,6 +59,8 @@ class DifyConfig(
     MiddlewareConfig,
     # Extra service configs
     ExtraServiceConfig,
+    # Remote source configs
+    RemoteSettingsSourceConfig,
     # Enterprise feature configs
     # **Before using, please contact [email protected] by email to inquire about licensing matters.**
     EnterpriseFeatureConfig,
@@ -35,3 +77,20 @@ class DifyConfig(
     # please consider to arrange it in the proper config group of existed or added
     # for better readability and maintainability.
     # Thanks for your concentration and consideration.
+
+    @classmethod
+    def settings_customise_sources(
+        cls,
+        settings_cls: type[BaseSettings],
+        init_settings: PydanticBaseSettingsSource,
+        env_settings: PydanticBaseSettingsSource,
+        dotenv_settings: PydanticBaseSettingsSource,
+        file_secret_settings: PydanticBaseSettingsSource,
+    ) -> tuple[PydanticBaseSettingsSource, ...]:
+        return (
+            init_settings,
+            env_settings,
+            RemoteSettingsSourceFactory(settings_cls),
+            dotenv_settings,
+            file_secret_settings,
+        )

api/configs/middleware/__init__.py

@@ -73,7 +73,7 @@ class KeywordStoreConfig(BaseSettings):
     )
 
 
-class DatabaseConfig:
+class DatabaseConfig(BaseSettings):
     DB_HOST: str = Field(
         description="Hostname or IP address of the database server.",
         default="localhost",

api/configs/middleware/storage/baidu_obs_storage_config.py

@@ -1,9 +1,10 @@
 from typing import Optional
 
-from pydantic import BaseModel, Field
+from pydantic import Field
+from pydantic_settings import BaseSettings
 
 
-class BaiduOBSStorageConfig(BaseModel):
+class BaiduOBSStorageConfig(BaseSettings):
     """
     Configuration settings for Baidu Object Storage Service (OBS)
     """

api/configs/middleware/storage/huawei_obs_storage_config.py

@@ -1,9 +1,10 @@
 from typing import Optional
 
-from pydantic import BaseModel, Field
+from pydantic import Field
+from pydantic_settings import BaseSettings
 
 
-class HuaweiCloudOBSStorageConfig(BaseModel):
+class HuaweiCloudOBSStorageConfig(BaseSettings):
     """
     Configuration settings for Huawei Cloud Object Storage Service (OBS)
     """

api/configs/middleware/storage/supabase_storage_config.py

@@ -1,9 +1,10 @@
 from typing import Optional
 
-from pydantic import BaseModel, Field
+from pydantic import Field
+from pydantic_settings import BaseSettings
 
 
-class SupabaseStorageConfig(BaseModel):
+class SupabaseStorageConfig(BaseSettings):
     """
     Configuration settings for Supabase Object Storage Service
     """

api/configs/middleware/storage/volcengine_tos_storage_config.py

@@ -1,9 +1,10 @@
 from typing import Optional
 
-from pydantic import BaseModel, Field
+from pydantic import Field
+from pydantic_settings import BaseSettings
 
 
-class VolcengineTOSStorageConfig(BaseModel):
+class VolcengineTOSStorageConfig(BaseSettings):
     """
     Configuration settings for Volcengine Tinder Object Storage (TOS)
     """

api/configs/middleware/vdb/analyticdb_config.py

@@ -1,9 +1,10 @@
 from typing import Optional
 
-from pydantic import BaseModel, Field, PositiveInt
+from pydantic import Field, PositiveInt
+from pydantic_settings import BaseSettings
 
 
-class AnalyticdbConfig(BaseModel):
+class AnalyticdbConfig(BaseSettings):
     """
     Configuration for connecting to Alibaba Cloud AnalyticDB for PostgreSQL.
     Refer to the following documentation for details on obtaining credentials:

api/configs/middleware/vdb/couchbase_config.py

@@ -1,9 +1,10 @@
 from typing import Optional
 
-from pydantic import BaseModel, Field
+from pydantic import Field
+from pydantic_settings import BaseSettings
 
 
-class CouchbaseConfig(BaseModel):
+class CouchbaseConfig(BaseSettings):
     """
     Couchbase configs
     """

api/configs/middleware/vdb/myscale_config.py

@@ -1,7 +1,8 @@
-from pydantic import BaseModel, Field, PositiveInt
+from pydantic import Field, PositiveInt
+from pydantic_settings import BaseSettings
 
 
-class MyScaleConfig(BaseModel):
+class MyScaleConfig(BaseSettings):
     """
     Configuration settings for MyScale vector database
     """

api/configs/middleware/vdb/vikingdb_config.py

@@ -1,9 +1,10 @@
 from typing import Optional
 
-from pydantic import BaseModel, Field
+from pydantic import Field
+from pydantic_settings import BaseSettings
 
 
-class VikingDBConfig(BaseModel):
+class VikingDBConfig(BaseSettings):
     """
     Configuration for connecting to Volcengine VikingDB.
     Refer to the following documentation for details on obtaining credentials:

api/configs/remote_settings_sources/__init__.py

@@ -0,0 +1,17 @@
+from typing import Optional
+
+from pydantic import Field
+
+from .apollo import ApolloSettingsSourceInfo
+from .base import RemoteSettingsSource
+from .enums import RemoteSettingsSourceName
+
+
+class RemoteSettingsSourceConfig(ApolloSettingsSourceInfo):
+    REMOTE_SETTINGS_SOURCE_NAME: Optional[RemoteSettingsSourceName] = Field(
+        description="name of remote config source",
+        default=None,
+    )
+
+
+__all__ = ["RemoteSettingsSource", "RemoteSettingsSourceConfig", "RemoteSettingsSourceName"]

api/configs/remote_settings_sources/apollo/__init__.py

@@ -0,0 +1,55 @@
+from collections.abc import Mapping
+from typing import Any, Optional
+
+from pydantic import Field
+from pydantic.fields import FieldInfo
+from pydantic_settings import BaseSettings
+
+from configs.remote_settings_sources.base import RemoteSettingsSource
+
+from .client import ApolloClient
+
+
+class ApolloSettingsSourceInfo(BaseSettings):
+    """
+    Packaging build information
+    """
+
+    APOLLO_APP_ID: Optional[str] = Field(
+        description="apollo app_id",
+        default=None,
+    )
+
+    APOLLO_CLUSTER: Optional[str] = Field(
+        description="apollo cluster",
+        default=None,
+    )
+
+    APOLLO_CONFIG_URL: Optional[str] = Field(
+        description="apollo config url",
+        default=None,
+    )
+
+    APOLLO_NAMESPACE: Optional[str] = Field(
+        description="apollo namespace",
+        default=None,
+    )
+
+
+class ApolloSettingsSource(RemoteSettingsSource):
+    def __init__(self, configs: Mapping[str, Any]):
+        self.client = ApolloClient(
+            app_id=configs["APOLLO_APP_ID"],
+            cluster=configs["APOLLO_CLUSTER"],
+            config_url=configs["APOLLO_CONFIG_URL"],
+            start_hot_update=False,
+            _notification_map={configs["APOLLO_NAMESPACE"]: -1},
+        )
+        self.namespace = configs["APOLLO_NAMESPACE"]
+        self.remote_configs = self.client.get_all_dicts(self.namespace)
+
+    def get_field_value(self, field: FieldInfo, field_name: str) -> tuple[Any, str, bool]:
+        if not isinstance(self.remote_configs, dict):
+            raise ValueError(f"remote configs is not dict, but {type(self.remote_configs)}")
+        field_value = self.remote_configs.get(field_name)
+        return field_value, field_name, False