diff --git a/cloud/ec2_eip b/cloud/ec2_eip new file mode 100644 index 00000000000..d8902c1cddb --- /dev/null +++ b/cloud/ec2_eip @@ -0,0 +1,173 @@ +#!/usr/bin/python +DOCUMENTATION = ''' +--- +module: ec2_eip +short_decription: associate an EC2 elastic IP with an instance. +description: + - This module associates AWS EC2 elastic IP addresses with instances +options: + instance_id: + description: + - The EC2 instance id + required: true + public_ip: + description: + - The elastic IP address to associate with the instance + required: true + state: + description: + - If present, associate the IP with the instance. + - If absent, disassociate the IP with the instance. + required: false + choices: ['present', 'absent'] + default: present + ec2_url: + description: + - URL to use to connect to EC2-compatible cloud (by default the module will use EC2 endpoints) + required: false + default: null + aliases: [ EC2_URL ] + ec2_access_key: + description: + - EC2 access key. If not specified then the EC2_ACCESS_KEY environment variable is used. + required: false + default: null + aliases: [ EC2_ACCESS_KEY ] + ec2_secret_key: + description: + - EC2 secret key. If not specified then the EC2_SECRET_KEY environment variable is used. + required: false + default: null + aliases: [ EC2_SECRET_KEY ] + region: + description: + - the EC2 region to use + required: false + default: null + aliases: [ ec2_region ] +requirements: [ "boto" ] +author: Lorin Hochstein +''' + +EXAMPLES = ''' +- ec2_eip: instance_id=i-1212f003 ip=93.184.216.119 + +- ec2_eip: instance_id=i-1212f003 ip=93.184.216.119 state=absent +''' + +try: + import boto.ec2 +except ImportError: + boto_found = False +else: + boto_found = True + + +def connect(ec2_url, ec2_secret_key, ec2_access_key, region): + """ Return an ec2 connection""" + # allow environment variables to be used if ansible vars aren't set + if not ec2_url and 'EC2_URL' in os.environ: + ec2_url = os.environ['EC2_URL'] + if not ec2_secret_key and 'EC2_SECRET_KEY' in os.environ: + ec2_secret_key = os.environ['EC2_SECRET_KEY'] + if not ec2_access_key and 'EC2_ACCESS_KEY' in os.environ: + ec2_access_key = os.environ['EC2_ACCESS_KEY'] + + # If we have a region specified, connect to its endpoint. + if region: + try: + ec2 = boto.ec2.connect_to_region(region, + aws_access_key_id=ec2_access_key, + aws_secret_access_key=ec2_secret_key) + except boto.exception.NoAuthHandlerFound, e: + module.fail_json(msg = str(" %s %s %s " % (region, ec2_access_key, + ec2_secret_key))) + # Otherwise, no region so we fallback to the old connection method + else: + try: + if ec2_url: # if we have an URL set, connect to the specified endpoint + ec2 = boto.connect_ec2_endpoint(ec2_url, ec2_access_key, ec2_secret_key) + else: # otherwise it's Amazon. + ec2 = boto.connect_ec2(ec2_access_key, ec2_secret_key) + except boto.exception.NoAuthHandlerFound, e: + module.fail_json(msg = str(e)) + return ec2 + + +def associate_ip_and_instance(ec2, public_ip, instance_id, module): + if ip_is_associated_with_instance(ec2, public_ip, instance_id): + module.exit_json(changed=False) + + # If we're in check mode, nothing else to do + if module.check_mode: + module.exit_json(changed=True) + + res = ec2.associate_address(instance_id, public_ip) + if res: + module.exit_json(changed=True) + else: + module.fail_json(msg="association failed") + + +def disassociate_ip_and_instance(ec2, public_ip, instance_id, module): + if not ip_is_associated_with_instance(ec2, public_ip, instance_id): + module.exit_json(changed=False) + + # If we're in check mode, nothing else to do + if module.check_mode: + module.exit_json(changed=True) + + res = ec2.disassociate_address(public_ip) + if res: + module.exit_json(changed=True) + else: + module.fail_json(msg="disassociation failed") + + +def ip_is_associated_with_instance(ec2, public_ip, instance_id): + """ Check if the elastic IP is currently associated with the instance """ + addresses = ec2.get_all_addresses([public_ip]) + if addresses: + return addresses[0].instance_id == instance_id + else: + return False + +def main(): + module = AnsibleModule( + argument_spec = dict( + instance_id = dict(required=True), + public_ip = dict(required=True, alises= ['ip'] ), + state = dict(required=False, default='present', + choices=['present', 'absent']), + ec2_url = dict(required=False, aliases=['EC2_URL']), + ec2_secret_key = dict(required=False, aliases=['EC2_SECRET_KEY'], no_log=True), + ec2_access_key = dict(required=False, aliases=['EC2_ACCESS_KEY']), + region = dict(required=False, aliases=['ec2_region']) + ), + supports_check_mode=True + ) + + if not boto_found: + module.fail_json(msg="boto is required") + + ec2 = connect(ec2_url=module.params.get('ec2_url'), + ec2_secret_key=module.params.get('ec2_secret_key'), + ec2_access_key=module.params.get('ec2_access_key'), + region=module.params.get('region')) + + instance_id = module.params.get('instance_id') + public_ip = module.params.get('public_ip') + state = module.params.get('state') + + if state == 'present': + associate_ip_and_instance(ec2, public_ip, instance_id, module) + else: + disassociate_ip_and_instance(ec2, public_ip, instance_id, module) + + + +# this is magic, see lib/ansible/module_common.py +#<> + +if __name__ == '__main__': + main()