def export_saved_model(checkpoint_dir, model_path, s3=boto3.client('s3')):
if checkpoint_dir.startswith('s3://'):
bucket_name, key_prefix = cs.parse_s3_url(checkpoint_dir)
prefix = os.path.join(key_prefix, 'export', 'Servo')
try:
contents = s3.list_objects_v2(Bucket=bucket_name,
Prefix=prefix)["Contents"]
saved_model_path_array = [
x['Key'] for x in contents
if x['Key'].endswith('saved_model.pb')
]
if len(saved_model_path_array) == 0:
logger.info(
"Failed to download saved model. File does not exist in {}"
.format(checkpoint_dir))
return
except KeyError as e:
logger.error(
"Failed to download saved model. File does not exist in {}".
format(checkpoint_dir))
raise e
saved_model_path = saved_model_path_array[0]
variables_path = [
x['Key'] for x in contents if 'variables/variables' in x['Key']
]
variable_names_to_paths = {
v.split('/').pop(): v
for v in variables_path
}
prefixes = key_prefix.split('/')
folders = saved_model_path.split('/')[len(prefixes):]
saved_model_filename = folders.pop()
path_to_save_model = os.path.join(model_path, *folders)
path_to_variables = os.path.join(path_to_save_model, 'variables')
os.makedirs(path_to_variables)
target = os.path.join(path_to_save_model, saved_model_filename)
s3.download_file(bucket_name, saved_model_path, target)
logger.info("Downloaded saved model at {}".format(target))
for filename, full_path in variable_names_to_paths.items():
key = full_path
target = os.path.join(path_to_variables, filename)
s3.download_file(bucket_name, key, target)
else:
if os.path.exists(checkpoint_dir):
shutil.copy2(checkpoint_dir, model_path)
else:
logger.error(
"Failed to copy saved model. File does not exist in {}".format(
checkpoint_dir))
def _configure_s3_file_system(self):
# loads S3 filesystem plugin
s3 = boto3.client('s3')
bucket_name, key = parse_s3_url(self.model_path)
bucket_location = s3.get_bucket_location(Bucket=bucket_name)['LocationConstraint']
if bucket_location:
os.environ['S3_REGION'] = bucket_location
os.environ['S3_USE_HTTPS'] = "1"
def export_saved_model(checkpoint_dir,
model_path,
s3=boto3.client(
's3', region_name=os.environ.get('AWS_REGION'))):
if checkpoint_dir.startswith('s3://'):
bucket_name, key_prefix = cs.parse_s3_url(checkpoint_dir)
prefix = os.path.join(key_prefix, 'export', 'Servo')
try:
contents = s3.list_objects_v2(Bucket=bucket_name,
Prefix=prefix)["Contents"]
saved_model_path_array = [
x['Key'] for x in contents
if x['Key'].endswith('saved_model.pb')
]
if len(saved_model_path_array) == 0:
logger.info(
"Failed to download saved model. File does not exist in {}"
.format(checkpoint_dir))
return
except KeyError as e:
logger.error(
"Failed to download saved model. File does not exist in {}".
format(checkpoint_dir))
raise e
# Select most recent saved_model.pb
saved_model_path = saved_model_path_array[-1]
saved_model_base_path = os.path.dirname(saved_model_path)
prefixes = key_prefix.split('/')
folders = saved_model_path.split('/')[len(prefixes):-1]
path_to_save_model = os.path.join(model_path, *folders)
def file_filter(x):
return x['Key'].startswith(
saved_model_base_path) and not x['Key'].endswith("/")
paths_to_copy = [x['Key'] for x in contents if file_filter(x)]
for key in paths_to_copy:
target = re.sub(r"^" + saved_model_base_path, path_to_save_model,
key)
_makedirs_for_file(target)
s3.download_file(bucket_name, key, target)
logger.info("Downloaded saved model at {}".format(path_to_save_model))
else:
if os.path.exists(checkpoint_dir):
_recursive_copy(checkpoint_dir, model_path)
else:
logger.error(
"Failed to copy saved model. File does not exist in {}".format(
checkpoint_dir))
def configure_s3_fs(checkpoint_path):
# If env variable is not set, defaults to None, which will use the global endpoint.
region_name = os.environ.get('AWS_REGION')
s3 = boto3.client('s3', region_name=region_name)
# We get the AWS region of the checkpoint bucket, which may be different from
# the region this container is currently running in.
bucket_name, key = cs.parse_s3_url(checkpoint_path)
bucket_location = s3.get_bucket_location(Bucket=bucket_name)['LocationConstraint']
# Configure environment variables used by TensorFlow S3 file system
if bucket_location:
os.environ['S3_REGION'] = bucket_location
os.environ['S3_USE_HTTPS'] = '1'
def configure_s3_fs(checkpoint_path):
# If env variable is not set, defaults to None, which will use the global endpoint.
region_name = os.environ.get('AWS_REGION')
s3 = boto3.client('s3', region_name=region_name)
# We get the AWS region of the checkpoint bucket, which may be different from
# the region this container is currently running in.
bucket_name, key = cs.parse_s3_url(checkpoint_path)
bucket_location = s3.get_bucket_location(
Bucket=bucket_name)['LocationConstraint']
# Configure environment variables used by TensorFlow S3 file system
if bucket_location:
os.environ['S3_REGION'] = bucket_location
os.environ['S3_USE_HTTPS'] = '1'
def export_saved_model(checkpoint_dir, model_path, s3=boto3.client('s3')):
if checkpoint_dir.startswith('s3://'):
bucket_name, key_prefix = cs.parse_s3_url(checkpoint_dir)
prefix = os.path.join(key_prefix, 'export', 'Servo')
try:
contents = s3.list_objects_v2(Bucket=bucket_name, Prefix=prefix)["Contents"]
saved_model_path_array = [x['Key'] for x in contents if x['Key'].endswith('saved_model.pb')]
if len(saved_model_path_array) == 0:
logger.info("Failed to download saved model. File does not exist in {}".format(checkpoint_dir))
return
except KeyError as e:
logger.error("Failed to download saved model. File does not exist in {}".format(checkpoint_dir))
raise e
# Select most recent saved_model.pb
saved_model_path = saved_model_path_array[-1]
variables_path = [x['Key'] for x in contents if 'variables/variables' in x['Key']]
variable_names_to_paths = {v.split('/').pop(): v for v in variables_path}
prefixes = key_prefix.split('/')
folders = saved_model_path.split('/')[len(prefixes):]
saved_model_filename = folders.pop()
path_to_save_model = os.path.join(model_path, *folders)
path_to_variables = os.path.join(path_to_save_model, 'variables')
os.makedirs(path_to_variables)
target = os.path.join(path_to_save_model, saved_model_filename)
s3.download_file(bucket_name, saved_model_path, target)
logger.info("Downloaded saved model at {}".format(target))
for filename, full_path in variable_names_to_paths.items():
key = full_path
target = os.path.join(path_to_variables, filename)
s3.download_file(bucket_name, key, target)
else:
if os.path.exists(checkpoint_dir):
_recursive_copy(checkpoint_dir, model_path)
else:
logger.error("Failed to copy saved model. File does not exist in {}".format(checkpoint_dir))
def export_saved_model(checkpoint_dir, model_path, s3=boto3.client('s3', region_name=os.environ.get('AWS_REGION'))):
if checkpoint_dir.startswith('s3://'):
bucket_name, key_prefix = cs.parse_s3_url(checkpoint_dir)
prefix = os.path.join(key_prefix, 'export', 'Servo')
try:
contents = s3.list_objects_v2(Bucket=bucket_name, Prefix=prefix)["Contents"]
saved_model_path_array = [x['Key'] for x in contents if x['Key'].endswith('saved_model.pb')]
if len(saved_model_path_array) == 0:
logger.info("Failed to download saved model. File does not exist in {}".format(checkpoint_dir))
return
except KeyError as e:
logger.error("Failed to download saved model. File does not exist in {}".format(checkpoint_dir))
raise e
# Select most recent saved_model.pb
saved_model_path = saved_model_path_array[-1]
saved_model_base_path = os.path.dirname(saved_model_path)
prefixes = key_prefix.split('/')
folders = saved_model_path.split('/')[len(prefixes):-1]
path_to_save_model = os.path.join(model_path, *folders)
def file_filter(x): return x['Key'].startswith(saved_model_base_path) and not x['Key'].endswith("/")
paths_to_copy = [x['Key'] for x in contents if file_filter(x)]
for key in paths_to_copy:
target = re.sub(r"^"+saved_model_base_path, path_to_save_model, key)
_makedirs_for_file(target)
s3.download_file(bucket_name, key, target)
logger.info("Downloaded saved model at {}".format(path_to_save_model))
else:
if os.path.exists(checkpoint_dir):
_recursive_copy(checkpoint_dir, model_path)
else:
logger.error("Failed to copy saved model. File does not exist in {}".format(checkpoint_dir))
def test_parse_s3_url_no_key():
assert ("bucket", "") == cs.parse_s3_url("s3://bucket/")
def test_parse_s3_url():
assert ("bucket", "key") == cs.parse_s3_url("s3://bucket/key")
def test_parse_s3_url_invalid():
with pytest.raises(ValueError):
cs.parse_s3_url("nots3://blah/blah")