def start():
cache_dir = os.environ["CORTEX_CACHE_DIR"]
provider = os.environ["CORTEX_PROVIDER"]
api_spec_path = os.environ["CORTEX_API_SPEC"]
job_spec_path = os.environ["CORTEX_JOB_SPEC"]
project_dir = os.environ["CORTEX_PROJECT_DIR"]
model_dir = os.getenv("CORTEX_MODEL_DIR")
tf_serving_port = os.getenv("CORTEX_TF_BASE_SERVING_PORT", "9000")
tf_serving_host = os.getenv("CORTEX_TF_SERVING_HOST", "localhost")
storage = S3(bucket=os.environ["CORTEX_BUCKET"],
region=os.environ["AWS_REGION"])
has_multiple_servers = os.getenv("CORTEX_MULTIPLE_TF_SERVERS")
if has_multiple_servers:
with FileLock("/run/used_ports.json.lock"):
with open("/run/used_ports.json", "r+") as f:
used_ports = json.load(f)
for port in used_ports.keys():
if not used_ports[port]:
tf_serving_port = port
used_ports[port] = True
break
f.seek(0)
json.dump(used_ports, f)
f.truncate()
raw_api_spec = get_spec(provider, storage, cache_dir, api_spec_path)
job_spec = get_job_spec(storage, cache_dir, job_spec_path)
api = API(provider=provider,
storage=storage,
model_dir=model_dir,
cache_dir=cache_dir,
**raw_api_spec)
client = api.predictor.initialize_client(tf_serving_host=tf_serving_host,
tf_serving_port=tf_serving_port)
cx_logger().info("loading the predictor from {}".format(
api.predictor.path))
predictor_impl = api.predictor.initialize_impl(project_dir, client,
raw_api_spec, job_spec)
local_cache["api_spec"] = api
local_cache["provider"] = provider
local_cache["job_spec"] = job_spec
local_cache["predictor_impl"] = predictor_impl
local_cache["predict_fn_args"] = inspect.getfullargspec(
predictor_impl.predict).args
local_cache["sqs_client"] = boto3.client(
"sqs", region_name=os.environ["AWS_REGION"])
open("/mnt/workspace/api_readiness.txt", "a").close()
cx_logger().info("polling for batches...")
sqs_loop()
def start_fn():
cache_dir = os.environ["CORTEX_CACHE_DIR"]
provider = os.environ["CORTEX_PROVIDER"]
spec_path = os.environ["CORTEX_API_SPEC"]
project_dir = os.environ["CORTEX_PROJECT_DIR"]
model_dir = os.getenv("CORTEX_MODEL_DIR")
tf_serving_port = os.getenv("CORTEX_TF_BASE_SERVING_PORT", "9000")
tf_serving_host = os.getenv("CORTEX_TF_SERVING_HOST", "localhost")
if provider == "local":
storage = LocalStorage(os.getenv("CORTEX_CACHE_DIR"))
else:
storage = S3(bucket=os.environ["CORTEX_BUCKET"],
region=os.environ["AWS_REGION"])
has_multiple_servers = os.getenv("CORTEX_MULTIPLE_TF_SERVERS")
if has_multiple_servers:
with FileLock("/run/used_ports.json.lock"):
with open("/run/used_ports.json", "r+") as f:
used_ports = json.load(f)
for port in used_ports.keys():
if not used_ports[port]:
tf_serving_port = port
used_ports[port] = True
break
f.seek(0)
json.dump(used_ports, f)
f.truncate()
try:
raw_api_spec = get_spec(provider, storage, cache_dir, spec_path)
api = API(
provider=provider,
storage=storage,
model_dir=model_dir,
cache_dir=cache_dir,
**raw_api_spec,
)
client = api.predictor.initialize_client(
tf_serving_host=tf_serving_host, tf_serving_port=tf_serving_port)
cx_logger().info("loading the predictor from {}".format(
api.predictor.path))
predictor_impl = api.predictor.initialize_impl(project_dir, client)
local_cache["api"] = api
local_cache["provider"] = provider
local_cache["client"] = client
local_cache["predictor_impl"] = predictor_impl
local_cache["predict_fn_args"] = inspect.getfullargspec(
predictor_impl.predict).args
predict_route = "/"
if provider != "local":
predict_route = "/predict"
local_cache["predict_route"] = predict_route
except:
cx_logger().exception("failed to start api")
sys.exit(1)
if (provider != "local" and api.monitoring is not None
and api.monitoring.model_type == "classification"):
try:
local_cache["class_set"] = api.get_cached_classes()
except:
cx_logger().warn(
"an error occurred while attempting to load classes",
exc_info=True)
app.add_api_route(local_cache["predict_route"], predict, methods=["POST"])
app.add_api_route(local_cache["predict_route"],
get_summary,
methods=["GET"])
return app