llama-stack-mirror/llama_toolchain/cli/api/start.py
2024-08-28 15:55:21 -07:00

82 lines
2.5 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 argparse
from pathlib import Path
import pkg_resources
import yaml
from llama_toolchain.cli.subcommand import Subcommand
from llama_toolchain.distribution.datatypes import * # noqa: F403
class ApiStart(Subcommand):
def __init__(self, subparsers: argparse._SubParsersAction):
super().__init__()
self.parser = subparsers.add_parser(
"start",
prog="llama api start",
description="""start the server for a Llama API provider. You should have already built and configured the provider.""",
formatter_class=argparse.RawTextHelpFormatter,
)
self._add_arguments()
self.parser.set_defaults(func=self._run_api_start_cmd)
def _add_arguments(self):
self.parser.add_argument(
"yaml_config",
type=str,
help="Yaml config containing the API build configuration",
)
self.parser.add_argument(
"--port",
type=int,
help="Port to run the server on. Defaults to 5000",
default=5000,
)
self.parser.add_argument(
"--disable-ipv6",
action="store_true",
help="Disable IPv6 support",
default=False,
)
def _run_api_start_cmd(self, args: argparse.Namespace) -> None:
from llama_toolchain.common.exec import run_with_pty
config_file = Path(args.yaml_config)
if not config_file.exists():
self.parser.error(
f"Could not find {config_file}. Please run `llama api build` first"
)
return
with open(config_file, "r") as f:
config = PackageConfig(**yaml.safe_load(f))
if config.docker_image:
script = pkg_resources.resource_filename(
"llama_toolchain",
"distribution/start_container.sh",
)
run_args = [script, config.docker_image]
else:
script = pkg_resources.resource_filename(
"llama_toolchain",
"distribution/start_conda_env.sh",
)
run_args = [
script,
config.conda_env,
]
run_args.extend([str(config_file), str(args.port)])
if args.disable_ipv6:
run_args.append("--disable-ipv6")
run_with_pty(run_args)