#!/usr/bin/python # # This is a free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This Ansible library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this library. If not, see . DOCUMENTATION = ''' --- module: ec2_elb_facts short_description: Gather facts about EC2 Elastic Load Balancers in AWS description: - Gather facts about EC2 Elastic Load Balancers in AWS version_added: "2.0" author: - "Michael Schultz (github.com/mjschultz)" - "Fernando Jose Pando (@nand0p)" options: names: description: - List of ELB names to gather facts about. Pass this option to gather facts about a set of ELBs, otherwise, all ELBs are returned. required: false default: null aliases: ['elb_ids', 'ec2_elbs'] extends_documentation_fragment: - aws - ec2 ''' EXAMPLES = ''' # Note: These examples do not set authentication details, see the AWS Guide for details. # Output format tries to match ec2_elb_lb module input parameters # Gather facts about all ELBs - action: module: ec2_elb_facts register: elb_facts - action: module: debug msg: "{{ item.dns_name }}" with_items: elb_facts.elbs # Gather facts about a particular ELB - action: module: ec2_elb_facts names: frontend-prod-elb register: elb_facts - action: module: debug msg: "{{ elb_facts.elbs.0.dns_name }}" # Gather facts about a set of ELBs - action: module: ec2_elb_facts names: - frontend-prod-elb - backend-prod-elb register: elb_facts - action: module: debug msg: "{{ item.dns_name }}" with_items: elb_facts.elbs ''' try: import boto.ec2.elb from boto.ec2.tag import Tag from boto.exception import BotoServerError HAS_BOTO = True except ImportError: HAS_BOTO = False class ElbInformation(object): """ Handles ELB information """ def __init__(self, module, names, region, **aws_connect_params): self.module = module self.names = names self.region = region self.aws_connect_params = aws_connect_params self.connection = self._get_elb_connection() def _get_tags(self, elbname): params = {'LoadBalancerNames.member.1': elbname} try: elb_tags = self.connection.get_list('DescribeTags', params, [('member', Tag)]) return dict((tag.Key, tag.Value) for tag in elb_tags if hasattr(tag, 'Key')) except: return {} def _get_elb_connection(self): try: return connect_to_aws(boto.ec2.elb, self.region, **self.aws_connect_params) except BotoServerError as err: self.module.fail_json(msg=err.message) def _get_elb_listeners(self, listeners): listener_list = [] for listener in listeners: listener_dict = { 'load_balancer_port': listener[0], 'instance_port': listener[1], 'protocol': listener[2], } try: ssl_certificate_id = listener[4] except IndexError: pass else: if ssl_certificate_id: listener_dict['ssl_certificate_id'] = ssl_certificate_id listener_list.append(listener_dict) return listener_list def _get_health_check(self, health_check): protocol, port_path = health_check.target.split(':') try: port, path = port_path.split('/', 1) path = '/{}'.format(path) except ValueError: port = port_path path = None health_check_dict = { 'ping_protocol': protocol.lower(), 'ping_port': int(port), 'response_timeout': health_check.timeout, 'interval': health_check.interval, 'unhealthy_threshold': health_check.unhealthy_threshold, 'healthy_threshold': health_check.healthy_threshold, } if path: health_check_dict['ping_path'] = path return health_check_dict def _get_elb_info(self, elb): elb_info = { 'name': elb.name, 'zones': elb.availability_zones, 'dns_name': elb.dns_name, 'canonical_hosted_zone_name': elb.canonical_hosted_zone_name, 'canonical_hosted_zone_name_id': elb.canonical_hosted_zone_name_id, 'hosted_zone_name': elb.canonical_hosted_zone_name, 'hosted_zone_id': elb.canonical_hosted_zone_name_id, 'instances': [instance.id for instance in elb.instances], 'listeners': self._get_elb_listeners(elb.listeners), 'scheme': elb.scheme, 'security_groups': elb.security_groups, 'health_check': self._get_health_check(elb.health_check), 'subnets': elb.subnets, 'instances_inservice': [], 'instances_inservice_count': 0, 'instances_outofservice': [], 'instances_outofservice_count': 0, 'instances_inservice_percent': 0.0, 'tags': self._get_tags(elb.name) } if elb.vpc_id: elb_info['vpc_id'] = elb.vpc_id if elb.instances: try: instance_health = self.connection.describe_instance_health(elb.name) except BotoServerError as err: self.module.fail_json(msg=err.message) elb_info['instances_inservice'] = [inst.instance_id for inst in instance_health if inst.state == 'InService'] elb_info['instances_inservice_count'] = len(elb_info['instances_inservice']) elb_info['instances_outofservice'] = [inst.instance_id for inst in instance_health if inst.state == 'OutOfService'] elb_info['instances_outofservice_count'] = len(elb_info['instances_outofservice']) elb_info['instances_inservice_percent'] = float(elb_info['instances_inservice_count'])/( float(elb_info['instances_inservice_count']) + float(elb_info['instances_outofservice_count']))*100 return elb_info def list_elbs(self): elb_array = [] try: all_elbs = self.connection.get_all_load_balancers() except BotoServerError as err: self.module.fail_json(msg = "%s: %s" % (err.error_code, err.error_message)) if all_elbs: for existing_lb in all_elbs: if existing_lb.name in self.names: elb_array.append(self._get_elb_info(existing_lb)) return elb_array def main(): argument_spec = ec2_argument_spec() argument_spec.update(dict( names={'default': None, 'type': 'list'} ) ) module = AnsibleModule(argument_spec=argument_spec) if not HAS_BOTO: module.fail_json(msg='boto required for this module') region, ec2_url, aws_connect_params = get_aws_connection_info(module) if not region: module.fail_json(msg="region must be specified") names = module.params['names'] elb_information = ElbInformation(module, names, region, **aws_connect_params) ec2_facts_result = dict(changed=False, elbs=elb_information.list_elbs()) module.exit_json(**ec2_facts_result) from ansible.module_utils.basic import * from ansible.module_utils.ec2 import * if __name__ == '__main__': main()