llama-stack-mirror/llama_stack/providers/tests/resolver.py
Ashwin Bharambe 12947ac19e
Kill "remote" providers and fix testing with a remote stack properly (#435)
# What does this PR do?

This PR kills the notion of "pure passthrough" remote providers. You
cannot specify a single provider you must specify a whole distribution
(stack) as remote.

This PR also significantly fixes / upgrades testing infrastructure so
you can now test against a remotely hosted stack server by just doing

```bash
pytest -s -v -m remote  test_agents.py \
  --inference-model=Llama3.1-8B-Instruct --safety-shield=Llama-Guard-3-1B \
  --env REMOTE_STACK_URL=http://localhost:5001
```

Also fixed `test_agents_persistence.py` (which was broken) and killed
some deprecated testing functions.

## Test Plan

All the tests.
2024-11-12 21:51:29 -08:00

93 lines
3.4 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 json
import tempfile
from datetime import datetime
from typing import Any, Dict, List, Optional
from llama_stack.distribution.datatypes import * # noqa: F403
from llama_stack.distribution.build import print_pip_install_help
from llama_stack.distribution.configure import parse_and_maybe_upgrade_config
from llama_stack.distribution.distribution import get_provider_registry
from llama_stack.distribution.request_headers import set_request_provider_data
from llama_stack.distribution.resolver import resolve_remote_stack_impls
from llama_stack.distribution.stack import construct_stack
from llama_stack.providers.utils.kvstore import SqliteKVStoreConfig
class TestStack(BaseModel):
impls: Dict[Api, Any]
run_config: StackRunConfig
async def construct_stack_for_test(
apis: List[Api],
providers: Dict[str, List[Provider]],
provider_data: Optional[Dict[str, Any]] = None,
models: Optional[List[ModelInput]] = None,
shields: Optional[List[ShieldInput]] = None,
memory_banks: Optional[List[MemoryBankInput]] = None,
datasets: Optional[List[DatasetInput]] = None,
scoring_fns: Optional[List[ScoringFnInput]] = None,
eval_tasks: Optional[List[EvalTaskInput]] = None,
) -> TestStack:
sqlite_file = tempfile.NamedTemporaryFile(delete=False, suffix=".db")
run_config = dict(
built_at=datetime.now(),
image_name="test-fixture",
apis=apis,
providers=providers,
metadata_store=SqliteKVStoreConfig(db_path=sqlite_file.name),
models=models or [],
shields=shields or [],
memory_banks=memory_banks or [],
datasets=datasets or [],
scoring_fns=scoring_fns or [],
eval_tasks=eval_tasks or [],
)
run_config = parse_and_maybe_upgrade_config(run_config)
try:
remote_config = remote_provider_config(run_config)
if not remote_config:
# TODO: add to provider registry by creating interesting mocks or fakes
impls = await construct_stack(run_config, get_provider_registry())
else:
# we don't register resources for a remote stack as part of the fixture setup
# because the stack is already "up". if a test needs to register resources, it
# can do so manually always.
impls = await resolve_remote_stack_impls(remote_config, run_config.apis)
test_stack = TestStack(impls=impls, run_config=run_config)
except ModuleNotFoundError as e:
print_pip_install_help(providers)
raise e
if provider_data:
set_request_provider_data(
{"X-LlamaStack-ProviderData": json.dumps(provider_data)}
)
return test_stack
def remote_provider_config(
run_config: StackRunConfig,
) -> Optional[RemoteProviderConfig]:
remote_config = None
has_non_remote = False
for api_providers in run_config.providers.values():
for provider in api_providers:
if provider.provider_type == "test::remote":
remote_config = RemoteProviderConfig(**provider.config)
else:
has_non_remote = True
if remote_config:
assert not has_non_remote, "Remote stack cannot have non-remote providers"
return remote_config