def retrieve_uri(self, relative_uri):
"""Retrieve JSON metadata from ECS metadata.
:type relative_uri: str
:param relative_uri: A relative URI, e.g "/foo/bar?id=123"
:return: The parsed JSON response.
"""
full_url = self._full_url(relative_uri)
headers = {'Accept': 'application/json'}
attempts = 0
while True:
try:
return self._get_response(full_url, headers, self.TIMEOUT_SECONDS)
except MetadataRetrievalError as e:
logger.debug("Received error when attempting to retrieve "
"ECS metadata: %s", e, exc_info=True)
self._sleep(self.SLEEP_TIME)
attempts += 1
if attempts >= self.RETRY_ATTEMPTS:
raise
python类MetadataRetrievalError()的实例源码
def _get_response(self, full_url, headers, timeout):
try:
response = self._session.get(full_url, headers=headers,
timeout=timeout)
if response.status_code != 200:
raise MetadataRetrievalError(
error_msg="Received non 200 response (%s) from ECS metadata: %s"
% (response.status_code, response.text))
try:
return json.loads(response.text)
except ValueError:
raise MetadataRetrievalError(
error_msg=("Unable to parse JSON returned from "
"ECS metadata: %s" % response.text))
except RETRYABLE_HTTP_ERRORS as e:
error_msg = ("Received error when attempting to retrieve "
"ECS metadata: %s" % e)
raise MetadataRetrievalError(error_msg=error_msg)
def _create_fetcher(self, relative_uri):
def fetch_creds():
try:
response = self._fetcher.retrieve_uri(relative_uri)
except MetadataRetrievalError as e:
logger.debug("Error retrieving ECS metadata: %s", e,
exc_info=True)
raise CredentialRetrievalError(provider=self.METHOD,
error_msg=str(e))
return {
'access_key': response['AccessKeyId'],
'secret_key': response['SecretAccessKey'],
'token': response['Token'],
'expiry_time': response['Expiration'],
}
return fetch_creds
def _get_response(self, full_url, headers, timeout):
try:
response = self._session.get(full_url, headers=headers,
timeout=timeout)
if response.status_code != 200:
raise MetadataRetrievalError(
error_msg="Received non 200 response (%s) from ECS metadata: %s"
% (response.status_code, response.text))
try:
return json.loads(response.text)
except ValueError:
raise MetadataRetrievalError(
error_msg=("Unable to parse JSON returned from "
"ECS metadata: %s" % response.text))
except RETRYABLE_HTTP_ERRORS as e:
error_msg = ("Received error when attempting to retrieve "
"ECS metadata: %s" % e)
raise MetadataRetrievalError(error_msg=error_msg)
def _create_fetcher(self, full_uri, headers):
def fetch_creds():
try:
response = self._fetcher.retrieve_full_uri(
full_uri, headers=headers)
except MetadataRetrievalError as e:
logger.debug("Error retrieving container metadata: %s", e,
exc_info=True)
raise CredentialRetrievalError(provider=self.METHOD,
error_msg=str(e))
return {
'access_key': response['AccessKeyId'],
'secret_key': response['SecretAccessKey'],
'token': response['Token'],
'expiry_time': response['Expiration'],
}
return fetch_creds
def retrieve_uri(self, relative_uri):
"""Retrieve JSON metadata from ECS metadata.
:type relative_uri: str
:param relative_uri: A relative URI, e.g "/foo/bar?id=123"
:return: The parsed JSON response.
"""
full_url = self._full_url(relative_uri)
headers = {'Accept': 'application/json'}
attempts = 0
while True:
try:
return self._get_response(full_url, headers, self.TIMEOUT_SECONDS)
except MetadataRetrievalError as e:
logger.debug("Received error when attempting to retrieve "
"ECS metadata: %s", e, exc_info=True)
self._sleep(self.SLEEP_TIME)
attempts += 1
if attempts >= self.RETRY_ATTEMPTS:
raise
def _get_response(self, full_url, headers, timeout):
try:
response = self._session.get(full_url, headers=headers,
timeout=timeout)
if response.status_code != 200:
raise MetadataRetrievalError(
error_msg="Received non 200 response (%s) from ECS metadata: %s"
% (response.status_code, response.text))
try:
return json.loads(response.text)
except ValueError:
raise MetadataRetrievalError(
error_msg=("Unable to parse JSON returned from "
"ECS metadata: %s" % response.text))
except RETRYABLE_HTTP_ERRORS as e:
error_msg = ("Received error when attempting to retrieve "
"ECS metadata: %s" % e)
raise MetadataRetrievalError(error_msg=error_msg)
def _create_fetcher(self, relative_uri):
def fetch_creds():
try:
response = self._fetcher.retrieve_uri(relative_uri)
except MetadataRetrievalError as e:
logger.debug("Error retrieving ECS metadata: %s", e,
exc_info=True)
raise CredentialRetrievalError(provider=self.METHOD,
error_msg=str(e))
return {
'access_key': response['AccessKeyId'],
'secret_key': response['SecretAccessKey'],
'token': response['Token'],
'expiry_time': response['Expiration'],
}
return fetch_creds
def retrieve_uri(self, relative_uri):
"""Retrieve JSON metadata from ECS metadata.
:type relative_uri: str
:param relative_uri: A relative URI, e.g "/foo/bar?id=123"
:return: The parsed JSON response.
"""
full_url = self._full_url(relative_uri)
headers = {'Accept': 'application/json'}
attempts = 0
while True:
try:
return self._get_response(full_url, headers, self.TIMEOUT_SECONDS)
except MetadataRetrievalError as e:
logger.debug("Received error when attempting to retrieve "
"ECS metadata: %s", e, exc_info=True)
self._sleep(self.SLEEP_TIME)
attempts += 1
if attempts >= self.RETRY_ATTEMPTS:
raise
def _get_response(self, full_url, headers, timeout):
try:
response = self._session.get(full_url, headers=headers,
timeout=timeout)
if response.status_code != 200:
raise MetadataRetrievalError(
error_msg="Received non 200 response (%s) from ECS metadata: %s"
% (response.status_code, response.text))
try:
return json.loads(response.text)
except ValueError:
raise MetadataRetrievalError(
error_msg=("Unable to parse JSON returned from "
"ECS metadata: %s" % response.text))
except RETRYABLE_HTTP_ERRORS as e:
error_msg = ("Received error when attempting to retrieve "
"ECS metadata: %s" % e)
raise MetadataRetrievalError(error_msg=error_msg)
def _create_fetcher(self, relative_uri):
def fetch_creds():
try:
response = self._fetcher.retrieve_uri(relative_uri)
except MetadataRetrievalError as e:
logger.debug("Error retrieving ECS metadata: %s", e,
exc_info=True)
raise CredentialRetrievalError(provider=self.METHOD,
error_msg=str(e))
return {
'access_key': response['AccessKeyId'],
'secret_key': response['SecretAccessKey'],
'token': response['Token'],
'expiry_time': response['Expiration'],
}
return fetch_creds
def _get_response(self, full_url, headers, timeout):
try:
response = self._session.get(full_url, headers=headers,
timeout=timeout)
if response.status_code != 200:
raise MetadataRetrievalError(
error_msg="Received non 200 response (%s) from ECS metadata: %s"
% (response.status_code, response.text))
try:
return json.loads(response.text)
except ValueError:
raise MetadataRetrievalError(
error_msg=("Unable to parse JSON returned from "
"ECS metadata: %s" % response.text))
except RETRYABLE_HTTP_ERRORS as e:
error_msg = ("Received error when attempting to retrieve "
"ECS metadata: %s" % e)
raise MetadataRetrievalError(error_msg=error_msg)
def _create_fetcher(self, full_uri, headers):
def fetch_creds():
try:
response = self._fetcher.retrieve_full_uri(
full_uri, headers=headers)
except MetadataRetrievalError as e:
logger.debug("Error retrieving container metadata: %s", e,
exc_info=True)
raise CredentialRetrievalError(provider=self.METHOD,
error_msg=str(e))
return {
'access_key': response['AccessKeyId'],
'secret_key': response['SecretAccessKey'],
'token': response['Token'],
'expiry_time': response['Expiration'],
}
return fetch_creds
utils.py 文件源码
项目：tf_aws_ecs_instance_draining_on_scale_in
作者: terraform-community-modules
项目源码
文件源码
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def retrieve_uri(self, relative_uri):
"""Retrieve JSON metadata from ECS metadata.
:type relative_uri: str
:param relative_uri: A relative URI, e.g "/foo/bar?id=123"
:return: The parsed JSON response.
"""
full_url = self._full_url(relative_uri)
headers = {'Accept': 'application/json'}
attempts = 0
while True:
try:
return self._get_response(full_url, headers, self.TIMEOUT_SECONDS)
except MetadataRetrievalError as e:
logger.debug("Received error when attempting to retrieve "
"ECS metadata: %s", e, exc_info=True)
self._sleep(self.SLEEP_TIME)
attempts += 1
if attempts >= self.RETRY_ATTEMPTS:
raise
utils.py 文件源码
项目：tf_aws_ecs_instance_draining_on_scale_in
作者: terraform-community-modules
项目源码
文件源码
阅读 22
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def _get_response(self, full_url, headers, timeout):
try:
response = self._session.get(full_url, headers=headers,
timeout=timeout)
if response.status_code != 200:
raise MetadataRetrievalError(
error_msg="Received non 200 response (%s) from ECS metadata: %s"
% (response.status_code, response.text))
try:
return json.loads(response.text)
except ValueError:
raise MetadataRetrievalError(
error_msg=("Unable to parse JSON returned from "
"ECS metadata: %s" % response.text))
except RETRYABLE_HTTP_ERRORS as e:
error_msg = ("Received error when attempting to retrieve "
"ECS metadata: %s" % e)
raise MetadataRetrievalError(error_msg=error_msg)
credentials.py 文件源码
项目：tf_aws_ecs_instance_draining_on_scale_in
作者: terraform-community-modules
项目源码
文件源码
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def _create_fetcher(self, relative_uri):
def fetch_creds():
try:
response = self._fetcher.retrieve_uri(relative_uri)
except MetadataRetrievalError as e:
logger.debug("Error retrieving ECS metadata: %s", e,
exc_info=True)
raise CredentialRetrievalError(provider=self.METHOD,
error_msg=str(e))
return {
'access_key': response['AccessKeyId'],
'secret_key': response['SecretAccessKey'],
'token': response['Token'],
'expiry_time': response['Expiration'],
}
return fetch_creds
def _retrieve_credentials(self, full_url, extra_headers=None):
headers = {'Accept': 'application/json'}
if extra_headers is not None:
headers.update(extra_headers)
attempts = 0
while True:
try:
return self._get_response(full_url, headers, self.TIMEOUT_SECONDS)
except MetadataRetrievalError as e:
logger.debug("Received error when attempting to retrieve "
"container metadata: %s", e, exc_info=True)
self._sleep(self.SLEEP_TIME)
attempts += 1
if attempts >= self.RETRY_ATTEMPTS:
raise
def _retrieve_credentials(self, full_url, extra_headers=None):
headers = {'Accept': 'application/json'}
if extra_headers is not None:
headers.update(extra_headers)
attempts = 0
while True:
try:
return self._get_response(full_url, headers, self.TIMEOUT_SECONDS)
except MetadataRetrievalError as e:
logger.debug("Received error when attempting to retrieve "
"container metadata: %s", e, exc_info=True)
self._sleep(self.SLEEP_TIME)
attempts += 1
if attempts >= self.RETRY_ATTEMPTS:
raise
