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126d15cc43
Enabling detailled monitoring in the launch config is mandatory to be able to activate cloudwatch in the to be created autoscaling group.
223 lines
7.8 KiB
Python
Executable file
223 lines
7.8 KiB
Python
Executable file
#!/usr/bin/python
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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DOCUMENTATION = """
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---
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module: ec2_lc
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short_description: Create or delete AWS Autoscaling Launch Configurations
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description:
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- Can create or delete AwS Autoscaling Configurations
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- Works with the ec2_asg module to manage Autoscaling Groups
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version_added: "1.6"
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author: Gareth Rushgrove
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options:
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state:
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description:
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- register or deregister the instance
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required: true
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choices: ['present', 'absent']
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name:
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description:
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- Unique name for configuration
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required: true
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instance_type:
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description:
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- instance type to use for the instance
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required: true
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default: null
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aliases: []
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image_id:
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description:
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- The AMI unique identifier to be used for the group
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required: false
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key_name:
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description:
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- The SSH key name to be used for access to managed instances
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required: false
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security_groups:
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description:
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- A list of security groups into which instances should be found
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required: false
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region:
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description:
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- The AWS region to use. If not specified then the value of the EC2_REGION environment variable, if any, is used.
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required: false
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aliases: ['aws_region', 'ec2_region']
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volumes:
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description:
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- a list of volume dicts, each containing device name and optionally ephemeral id or snapshot id. Size and type (and number of iops for io device type) must be specified for a new volume or a root volume, and may be passed for a snapshot volume. For any volume, a volume size less than 1 will be interpreted as a request not to create the volume.
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required: false
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default: null
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aliases: []
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user_data:
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description:
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- opaque blob of data which is made available to the ec2 instance
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required: false
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default: null
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aliases: []
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spot_price:
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description:
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- The spot price you are bidding. Only applies for an autoscaling group with spot instances.
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required: false
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default: null
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instance_monitoring:
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description:
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- whether instances in group are launched with detailed monitoring.
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required: false
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default: false
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aliases: []
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extends_documentation_fragment: aws
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"""
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EXAMPLES = '''
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- ec2_lc:
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name: special
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image_id: ami-XXX
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key_name: default
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security_groups: 'group,group2'
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instance_type: t1.micro
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'''
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import sys
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import time
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from ansible.module_utils.basic import *
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from ansible.module_utils.ec2 import *
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try:
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from boto.ec2.blockdevicemapping import BlockDeviceType, BlockDeviceMapping
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import boto.ec2.autoscale
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from boto.ec2.autoscale import LaunchConfiguration
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from boto.exception import BotoServerError
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except ImportError:
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print "failed=True msg='boto required for this module'"
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sys.exit(1)
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def create_block_device(module, volume):
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# Not aware of a way to determine this programatically
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# http://aws.amazon.com/about-aws/whats-new/2013/10/09/ebs-provisioned-iops-maximum-iops-gb-ratio-increased-to-30-1/
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MAX_IOPS_TO_SIZE_RATIO = 30
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if 'snapshot' not in volume and 'ephemeral' not in volume:
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if 'volume_size' not in volume:
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module.fail_json(msg='Size must be specified when creating a new volume or modifying the root volume')
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if 'snapshot' in volume:
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if 'device_type' in volume and volume.get('device_type') == 'io1' and 'iops' not in volume:
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module.fail_json(msg='io1 volumes must have an iops value set')
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if 'ephemeral' in volume:
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if 'snapshot' in volume:
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module.fail_json(msg='Cannot set both ephemeral and snapshot')
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return BlockDeviceType(snapshot_id=volume.get('snapshot'),
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ephemeral_name=volume.get('ephemeral'),
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size=volume.get('volume_size'),
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volume_type=volume.get('device_type'),
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delete_on_termination=volume.get('delete_on_termination', False),
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iops=volume.get('iops'))
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def create_launch_config(connection, module):
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name = module.params.get('name')
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image_id = module.params.get('image_id')
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key_name = module.params.get('key_name')
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security_groups = module.params['security_groups']
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user_data = module.params.get('user_data')
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volumes = module.params['volumes']
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instance_type = module.params.get('instance_type')
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spot_price = module.params.get('spot_price')
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instance_monitoring = module.params.get('instance_monitoring')
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bdm = BlockDeviceMapping()
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if volumes:
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for volume in volumes:
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if 'device_name' not in volume:
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module.fail_json(msg='Device name must be set for volume')
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# Minimum volume size is 1GB. We'll use volume size explicitly set to 0
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# to be a signal not to create this volume
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if 'volume_size' not in volume or int(volume['volume_size']) > 0:
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bdm[volume['device_name']] = create_block_device(module, volume)
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lc = LaunchConfiguration(
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name=name,
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image_id=image_id,
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key_name=key_name,
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security_groups=security_groups,
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user_data=user_data,
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block_device_mappings=[bdm],
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instance_type=instance_type,
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spot_price=spot_price,
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instance_monitoring=instance_monitoring)
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launch_configs = connection.get_all_launch_configurations(names=[name])
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changed = False
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if not launch_configs:
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try:
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connection.create_launch_configuration(lc)
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launch_configs = connection.get_all_launch_configurations(names=[name])
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changed = True
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except BotoServerError, e:
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module.fail_json(msg=str(e))
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result = launch_configs[0]
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module.exit_json(changed=changed, name=result.name, created_time=str(result.created_time),
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image_id=result.image_id, arn=result.launch_configuration_arn,
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security_groups=result.security_groups, instance_type=instance_type)
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def delete_launch_config(connection, module):
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name = module.params.get('name')
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launch_configs = connection.get_all_launch_configurations(names=[name])
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if launch_configs:
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launch_configs[0].delete()
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module.exit_json(changed=True)
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else:
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module.exit_json(changed=False)
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def main():
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argument_spec = ec2_argument_spec()
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argument_spec.update(
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dict(
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name=dict(required=True, type='str'),
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image_id=dict(type='str'),
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key_name=dict(type='str'),
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security_groups=dict(type='list'),
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user_data=dict(type='str'),
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volumes=dict(type='list'),
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instance_type=dict(type='str'),
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state=dict(default='present', choices=['present', 'absent']),
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spot_price=dict(type='float'),
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instance_monitoring=dict(default=False, type='bool'),
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)
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)
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module = AnsibleModule(argument_spec=argument_spec)
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region, ec2_url, aws_connect_params = get_aws_connection_info(module)
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try:
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connection = connect_to_aws(boto.ec2.autoscale, region, **aws_connect_params)
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except boto.exception.NoAuthHandlerFound, e:
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module.fail_json(msg=str(e))
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state = module.params.get('state')
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if state == 'present':
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create_launch_config(connection, module)
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elif state == 'absent':
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delete_launch_config(connection, module)
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main()
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