llama-stack/llama_stack/distribution/utils/dynamic.py
Ashwin Bharambe 9487ad8294
API Updates (#73)
* API Keys passed from Client instead of distro configuration

* delete distribution registry

* Rename the "package" word away

* Introduce a "Router" layer for providers

Some providers need to be factorized and considered as thin routing
layers on top of other providers. Consider two examples:

- The inference API should be a routing layer over inference providers,
  routed using the "model" key
- The memory banks API is another instance where various memory bank
  types will be provided by independent providers (e.g., a vector store
  is served by Chroma while a keyvalue memory can be served by Redis or
  PGVector)

This commit introduces a generalized routing layer for this purpose.

* update `apis_to_serve`

* llama_toolchain -> llama_stack

* Codemod from llama_toolchain -> llama_stack

- added providers/registry
- cleaned up api/ subdirectories and moved impls away
- restructured api/api.py
- from llama_stack.apis.<api> import foo should work now
- update imports to do llama_stack.apis.<api>
- update many other imports
- added __init__, fixed some registry imports
- updated registry imports
- create_agentic_system -> create_agent
- AgenticSystem -> Agent

* Moved some stuff out of common/; re-generated OpenAPI spec

* llama-toolchain -> llama-stack (hyphens)

* add control plane API

* add redis adapter + sqlite provider

* move core -> distribution

* Some more toolchain -> stack changes

* small naming shenanigans

* Removing custom tool and agent utilities and moving them client side

* Move control plane to distribution server for now

* Remove control plane from API list

* no codeshield dependency randomly plzzzzz

* Add "fire" as a dependency

* add back event loggers

* stack configure fixes

* use brave instead of bing in the example client

* add init file so it gets packaged

* add init files so it gets packaged

* Update MANIFEST

* bug fix

---------

Co-authored-by: Hardik Shah <hjshah@fb.com>
Co-authored-by: Xi Yan <xiyan@meta.com>
Co-authored-by: Ashwin Bharambe <ashwin@meta.com>
2024-09-17 19:51:35 -07:00

66 lines
2.2 KiB
Python

# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
import importlib
from typing import Any, Dict
from llama_stack.distribution.datatypes import * # noqa: F403
def instantiate_class_type(fully_qualified_name):
module_name, class_name = fully_qualified_name.rsplit(".", 1)
module = importlib.import_module(module_name)
return getattr(module, class_name)
# returns a class implementing the protocol corresponding to the Api
async def instantiate_provider(
provider_spec: ProviderSpec,
deps: Dict[str, Any],
provider_config: ProviderMapEntry,
):
module = importlib.import_module(provider_spec.module)
args = []
if isinstance(provider_spec, RemoteProviderSpec):
if provider_spec.adapter:
method = "get_adapter_impl"
else:
method = "get_client_impl"
assert isinstance(provider_config, GenericProviderConfig)
config_type = instantiate_class_type(provider_spec.config_class)
config = config_type(**provider_config.config)
args = [config, deps]
elif isinstance(provider_spec, RouterProviderSpec):
method = "get_router_impl"
assert isinstance(provider_config, list)
inner_specs = {x.provider_id: x for x in provider_spec.inner_specs}
inner_impls = []
for routing_entry in provider_config:
impl = await instantiate_provider(
inner_specs[routing_entry.provider_id],
deps,
routing_entry,
)
inner_impls.append((routing_entry.routing_key, impl))
config = None
args = [inner_impls, deps]
else:
method = "get_provider_impl"
assert isinstance(provider_config, GenericProviderConfig)
config_type = instantiate_class_type(provider_spec.config_class)
config = config_type(**provider_config.config)
args = [config, deps]
fn = getattr(module, method)
impl = await fn(*args)
impl.__provider_spec__ = provider_spec
impl.__provider_config__ = config
return impl