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# This code is part of Ansible, but is an independent component.
# This particular file snippet, and this file snippet only, is BSD licensed.
# Modules you write using this snippet, which is embedded dynamically by Ansible
# still belong to the author of the module, and may assign their own license
# to the complete work.
#
# Copyright (c), Michael DeHaan <michael.dehaan@gmail.com>, 2012-2013
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without modification,
# are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
# USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
import os
try:
import boto3
import botocore
HAS_BOTO3 = True
except:
HAS_BOTO3 = False
try:
from distutils.version import LooseVersion
HAS_LOOSE_VERSION = True
except:
HAS_LOOSE_VERSION = False
class AnsibleAWSError(Exception):
pass
def boto3_conn(module, conn_type=None, resource=None, region=None, endpoint=None, **params):
profile = params.pop('profile_name', None)
params['aws_session_token'] = params.pop('security_token', None)
params['verify'] = params.pop('validate_certs', None)
if conn_type not in ['both', 'resource', 'client']:
module.fail_json(msg='There is an issue in the code of the module. You must specify either both, resource or client to the conn_type parameter in the boto3_conn function call')
if conn_type == 'resource':
resource = boto3.session.Session(profile_name=profile).resource(resource, region_name=region, endpoint_url=endpoint, **params)
return resource
elif conn_type == 'client':
client = boto3.session.Session(profile_name=profile).client(resource, region_name=region, endpoint_url=endpoint, **params)
return client
else:
resource = boto3.session.Session(profile_name=profile).resource(resource, region_name=region, endpoint_url=endpoint, **params)
client = boto3.session.Session(profile_name=profile).client(resource, region_name=region, endpoint_url=endpoint, **params)
return client, resource
def aws_common_argument_spec():
return dict(
ec2_url=dict(),
aws_secret_key=dict(aliases=['ec2_secret_key', 'secret_key'], no_log=True),
aws_access_key=dict(aliases=['ec2_access_key', 'access_key']),
validate_certs=dict(default=True, type='bool'),
security_token=dict(aliases=['access_token'], no_log=True),
profile=dict(),
)
def ec2_argument_spec():
spec = aws_common_argument_spec()
spec.update(
dict(
region=dict(aliases=['aws_region', 'ec2_region']),
)
)
return spec
def boto_supports_profile_name():
return hasattr(boto.ec2.EC2Connection, 'profile_name')
def get_aws_connection_info(module, boto3=False):
# Check module args for credentials, then check environment vars
# access_key
ec2_url = module.params.get('ec2_url')
access_key = module.params.get('aws_access_key')
secret_key = module.params.get('aws_secret_key')
security_token = module.params.get('security_token')
region = module.params.get('region')
profile_name = module.params.get('profile')
validate_certs = module.params.get('validate_certs')
if not ec2_url:
if 'AWS_URL' in os.environ:
ec2_url = os.environ['AWS_URL']
elif 'EC2_URL' in os.environ:
ec2_url = os.environ['EC2_URL']
if not access_key:
if 'AWS_ACCESS_KEY_ID' in os.environ:
access_key = os.environ['AWS_ACCESS_KEY_ID']
elif 'AWS_ACCESS_KEY' in os.environ:
access_key = os.environ['AWS_ACCESS_KEY']
elif 'EC2_ACCESS_KEY' in os.environ:
access_key = os.environ['EC2_ACCESS_KEY']
else:
# in case access_key came in as empty string
access_key = None
if not secret_key:
if 'AWS_SECRET_ACCESS_KEY' in os.environ:
secret_key = os.environ['AWS_SECRET_ACCESS_KEY']
elif 'AWS_SECRET_KEY' in os.environ:
secret_key = os.environ['AWS_SECRET_KEY']
elif 'EC2_SECRET_KEY' in os.environ:
secret_key = os.environ['EC2_SECRET_KEY']
else:
# in case secret_key came in as empty string
secret_key = None
if not region:
if 'AWS_REGION' in os.environ:
region = os.environ['AWS_REGION']
elif 'AWS_DEFAULT_REGION' in os.environ:
region = os.environ['AWS_DEFAULT_REGION']
elif 'EC2_REGION' in os.environ:
region = os.environ['EC2_REGION']
else:
if not boto3:
# boto.config.get returns None if config not found
region = boto.config.get('Boto', 'aws_region')
if not region:
region = boto.config.get('Boto', 'ec2_region')
elif HAS_BOTO3:
# here we don't need to make an additional call, will default to 'us-east-1' if the below evaluates to None.
region = botocore.session.get_session().get_config_variable('region')
else:
module.fail_json("Boto3 is required for this module. Please install boto3 and try again")
if not security_token:
if 'AWS_SECURITY_TOKEN' in os.environ:
security_token = os.environ['AWS_SECURITY_TOKEN']
elif 'EC2_SECURITY_TOKEN' in os.environ:
security_token = os.environ['EC2_SECURITY_TOKEN']
else:
# in case security_token came in as empty string
security_token = None
if HAS_BOTO3 and boto3:
boto_params = dict(aws_access_key_id=access_key,
aws_secret_access_key=secret_key,
aws_session_token=security_token)
boto_params['verify'] = validate_certs
if profile_name:
boto_params['profile_name'] = profile_name
else:
boto_params = dict(aws_access_key_id=access_key,
aws_secret_access_key=secret_key,
security_token=security_token)
# profile_name only works as a key in boto >= 2.24
# so only set profile_name if passed as an argument
if profile_name:
if not boto_supports_profile_name():
module.fail_json("boto does not support profile_name before 2.24")
boto_params['profile_name'] = profile_name
if HAS_LOOSE_VERSION and LooseVersion(boto.Version) >= LooseVersion("2.6.0"):
boto_params['validate_certs'] = validate_certs
for param, value in boto_params.items():
if isinstance(value, str):
boto_params[param] = unicode(value, 'utf-8', 'strict')
return region, ec2_url, boto_params
def get_ec2_creds(module):
''' for compatibility mode with old modules that don't/can't yet
use ec2_connect method '''
region, ec2_url, boto_params = get_aws_connection_info(module)
return ec2_url, boto_params['aws_access_key_id'], boto_params['aws_secret_access_key'], region
def boto_fix_security_token_in_profile(conn, profile_name):
''' monkey patch for boto issue boto/boto#2100 '''
profile = 'profile ' + profile_name
if boto.config.has_option(profile, 'aws_security_token'):
conn.provider.set_security_token(boto.config.get(profile, 'aws_security_token'))
return conn
def connect_to_aws(aws_module, region, **params):
conn = aws_module.connect_to_region(region, **params)
if not conn:
if region not in [aws_module_region.name for aws_module_region in aws_module.regions()]:
raise AnsibleAWSError("Region %s does not seem to be available for aws module %s. If the region definitely exists, you may need to upgrade boto or extend with endpoints_path" % (region, aws_module.__name__))
else:
raise AnsibleAWSError("Unknown problem connecting to region %s for aws module %s." % (region, aws_module.__name__))
if params.get('profile_name'):
conn = boto_fix_security_token_in_profile(conn, params['profile_name'])
return conn
def ec2_connect(module):
""" Return an ec2 connection"""
region, ec2_url, boto_params = get_aws_connection_info(module)
# If we have a region specified, connect to its endpoint.
if region:
try:
ec2 = connect_to_aws(boto.ec2, region, **boto_params)
except (boto.exception.NoAuthHandlerFound, AnsibleAWSError), e:
module.fail_json(msg=str(e))
# Otherwise, no region so we fallback to the old connection method
elif ec2_url:
try:
ec2 = boto.connect_ec2_endpoint(ec2_url, **boto_params)
except (boto.exception.NoAuthHandlerFound, AnsibleAWSError), e:
module.fail_json(msg=str(e))
else:
module.fail_json(msg="Either region or ec2_url must be specified")
return ec2
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