1712 lines
71 KiB
Python
Executable file
1712 lines
71 KiB
Python
Executable file
#!/usr/bin/env python
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'''
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EC2 external inventory script
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=================================
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Generates inventory that Ansible can understand by making API request to
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AWS EC2 using the Boto library.
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NOTE: This script assumes Ansible is being executed where the environment
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variables needed for Boto have already been set:
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export AWS_ACCESS_KEY_ID='AK123'
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export AWS_SECRET_ACCESS_KEY='abc123'
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Optional region environment variable if region is 'auto'
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This script also assumes that there is an ec2.ini file alongside it. To specify a
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different path to ec2.ini, define the EC2_INI_PATH environment variable:
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export EC2_INI_PATH=/path/to/my_ec2.ini
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If you're using eucalyptus you need to set the above variables and
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you need to define:
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export EC2_URL=http://hostname_of_your_cc:port/services/Eucalyptus
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If you're using boto profiles (requires boto>=2.24.0) you can choose a profile
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using the --boto-profile command line argument (e.g. ec2.py --boto-profile prod) or using
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the AWS_PROFILE variable:
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AWS_PROFILE=prod ansible-playbook -i ec2.py myplaybook.yml
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For more details, see: http://docs.pythonboto.org/en/latest/boto_config_tut.html
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You can filter for specific EC2 instances by creating an environment variable
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named EC2_INSTANCE_FILTERS, which has the same format as the instance_filters
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entry documented in ec2.ini. For example, to find all hosts whose name begins
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with 'webserver', one might use:
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export EC2_INSTANCE_FILTERS='tag:Name=webserver*'
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When run against a specific host, this script returns the following variables:
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- ec2_ami_launch_index
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- ec2_architecture
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- ec2_association
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- ec2_attachTime
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- ec2_attachment
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- ec2_attachmentId
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- ec2_block_devices
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- ec2_client_token
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- ec2_deleteOnTermination
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- ec2_description
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- ec2_deviceIndex
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- ec2_dns_name
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- ec2_eventsSet
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- ec2_group_name
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- ec2_hypervisor
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- ec2_id
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- ec2_image_id
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- ec2_instanceState
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- ec2_instance_type
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- ec2_ipOwnerId
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- ec2_ip_address
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- ec2_item
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- ec2_kernel
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- ec2_key_name
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- ec2_launch_time
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- ec2_monitored
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- ec2_monitoring
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- ec2_networkInterfaceId
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- ec2_ownerId
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- ec2_persistent
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- ec2_placement
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- ec2_platform
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- ec2_previous_state
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- ec2_private_dns_name
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- ec2_private_ip_address
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- ec2_publicIp
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- ec2_public_dns_name
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- ec2_ramdisk
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- ec2_reason
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- ec2_region
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- ec2_requester_id
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- ec2_root_device_name
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- ec2_root_device_type
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- ec2_security_group_ids
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- ec2_security_group_names
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- ec2_shutdown_state
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- ec2_sourceDestCheck
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- ec2_spot_instance_request_id
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- ec2_state
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- ec2_state_code
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- ec2_state_reason
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- ec2_status
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- ec2_subnet_id
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- ec2_tenancy
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- ec2_virtualization_type
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- ec2_vpc_id
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These variables are pulled out of a boto.ec2.instance object. There is a lack of
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consistency with variable spellings (camelCase and underscores) since this
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just loops through all variables the object exposes. It is preferred to use the
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ones with underscores when multiple exist.
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In addition, if an instance has AWS tags associated with it, each tag is a new
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variable named:
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- ec2_tag_[Key] = [Value]
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Security groups are comma-separated in 'ec2_security_group_ids' and
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'ec2_security_group_names'.
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When destination_format and destination_format_tags are specified
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the destination_format can be built from the instance tags and attributes.
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The behavior will first check the user defined tags, then proceed to
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check instance attributes, and finally if neither are found 'nil' will
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be used instead.
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'my_instance': {
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'region': 'us-east-1', # attribute
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'availability_zone': 'us-east-1a', # attribute
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'private_dns_name': '172.31.0.1', # attribute
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'ec2_tag_deployment': 'blue', # tag
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'ec2_tag_clusterid': 'ansible', # tag
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'ec2_tag_Name': 'webserver', # tag
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...
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}
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Inside of the ec2.ini file the following settings are specified:
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...
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destination_format: {0}-{1}-{2}-{3}
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destination_format_tags: Name,clusterid,deployment,private_dns_name
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...
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These settings would produce a destination_format as the following:
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'webserver-ansible-blue-172.31.0.1'
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'''
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# (c) 2012, Peter Sankauskas
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#
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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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######################################################################
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import sys
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import os
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import argparse
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import re
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from time import time
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from copy import deepcopy
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from datetime import date, datetime
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import boto
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from boto import ec2
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from boto import rds
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from boto import elasticache
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from boto import route53
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from boto import sts
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from ansible.module_utils import six
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from ansible.module_utils import ec2 as ec2_utils
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from ansible.module_utils.six.moves import configparser
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HAS_BOTO3 = False
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try:
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import boto3 # noqa
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HAS_BOTO3 = True
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except ImportError:
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pass
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from collections import defaultdict
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import json
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DEFAULTS = {
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'all_elasticache_clusters': 'False',
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'all_elasticache_nodes': 'False',
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'all_elasticache_replication_groups': 'False',
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'all_instances': 'False',
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'all_rds_instances': 'False',
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'aws_access_key_id': '',
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'aws_secret_access_key': '',
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'aws_security_token': '',
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'boto_profile': '',
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'cache_max_age': '300',
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'cache_path': '~/.ansible/tmp',
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'destination_variable': 'public_dns_name',
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'elasticache': 'True',
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'eucalyptus': 'False',
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'eucalyptus_host': '',
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'expand_csv_tags': 'False',
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'group_by_ami_id': 'True',
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'group_by_availability_zone': 'True',
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'group_by_aws_account': 'False',
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'group_by_elasticache_cluster': 'True',
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'group_by_elasticache_engine': 'True',
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'group_by_elasticache_parameter_group': 'True',
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'group_by_elasticache_replication_group': 'True',
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'group_by_instance_id': 'True',
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'group_by_instance_state': 'False',
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'group_by_instance_type': 'True',
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'group_by_key_pair': 'True',
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'group_by_platform': 'True',
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'group_by_rds_engine': 'True',
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'group_by_rds_parameter_group': 'True',
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'group_by_region': 'True',
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'group_by_route53_names': 'True',
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'group_by_security_group': 'True',
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'group_by_tag_keys': 'True',
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'group_by_tag_none': 'True',
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'group_by_vpc_id': 'True',
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'hostname_variable': '',
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'iam_role': '',
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'include_rds_clusters': 'False',
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'nested_groups': 'False',
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'pattern_exclude': '',
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'pattern_include': '',
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'rds': 'False',
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'regions': 'all',
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'regions_exclude': 'us-gov-west-1, cn-north-1',
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'replace_dash_in_groups': 'True',
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'route53': 'False',
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'route53_excluded_zones': '',
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'route53_hostnames': '',
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'stack_filters': 'False',
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'vpc_destination_variable': 'ip_address'
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}
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class Ec2Inventory(object):
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def _empty_inventory(self):
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return {"_meta": {"hostvars": {}}}
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def _json_serial(self, obj):
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"""JSON serializer for objects not serializable by default json code"""
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if isinstance(obj, (datetime, date)):
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return obj.isoformat()
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raise TypeError("Type %s not serializable" % type(obj))
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def __init__(self):
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''' Main execution path '''
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# Inventory grouped by instance IDs, tags, security groups, regions,
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# and availability zones
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self.inventory = self._empty_inventory()
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self.aws_account_id = None
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# Index of hostname (address) to instance ID
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self.index = {}
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# Boto profile to use (if any)
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self.boto_profile = None
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# AWS credentials.
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self.credentials = {}
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# Read settings and parse CLI arguments
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self.parse_cli_args()
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self.read_settings()
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# Make sure that profile_name is not passed at all if not set
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# as pre 2.24 boto will fall over otherwise
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if self.boto_profile:
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if not hasattr(boto.ec2.EC2Connection, 'profile_name'):
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self.fail_with_error("boto version must be >= 2.24 to use profile")
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# Cache
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if self.args.refresh_cache:
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self.do_api_calls_update_cache()
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elif not self.is_cache_valid():
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self.do_api_calls_update_cache()
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# Data to print
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if self.args.host:
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data_to_print = self.get_host_info()
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elif self.args.list:
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# Display list of instances for inventory
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if self.inventory == self._empty_inventory():
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data_to_print = self.get_inventory_from_cache()
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else:
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data_to_print = self.json_format_dict(self.inventory, True)
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print(data_to_print)
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def is_cache_valid(self):
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''' Determines if the cache files have expired, or if it is still valid '''
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if os.path.isfile(self.cache_path_cache):
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mod_time = os.path.getmtime(self.cache_path_cache)
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current_time = time()
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if (mod_time + self.cache_max_age) > current_time:
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if os.path.isfile(self.cache_path_index):
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return True
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return False
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def read_settings(self):
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''' Reads the settings from the ec2.ini file '''
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scriptbasename = __file__
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scriptbasename = os.path.basename(scriptbasename)
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scriptbasename = scriptbasename.replace('.py', '')
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defaults = {
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'ec2': {
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'ini_fallback': os.path.join(os.path.dirname(__file__), 'ec2.ini'),
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'ini_path': os.path.join(os.path.dirname(__file__), '%s.ini' % scriptbasename)
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}
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}
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if six.PY3:
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config = configparser.ConfigParser(DEFAULTS)
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else:
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config = configparser.SafeConfigParser(DEFAULTS)
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ec2_ini_path = os.environ.get('EC2_INI_PATH', defaults['ec2']['ini_path'])
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ec2_ini_path = os.path.expanduser(os.path.expandvars(ec2_ini_path))
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if not os.path.isfile(ec2_ini_path):
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ec2_ini_path = os.path.expanduser(defaults['ec2']['ini_fallback'])
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if os.path.isfile(ec2_ini_path):
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config.read(ec2_ini_path)
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# Add empty sections if they don't exist
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try:
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config.add_section('ec2')
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except configparser.DuplicateSectionError:
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pass
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try:
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config.add_section('credentials')
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except configparser.DuplicateSectionError:
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pass
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# is eucalyptus?
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self.eucalyptus = config.getboolean('ec2', 'eucalyptus')
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self.eucalyptus_host = config.get('ec2', 'eucalyptus_host')
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# Regions
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self.regions = []
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config_regions = config.get('ec2', 'regions')
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if (config_regions == 'all'):
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if self.eucalyptus_host:
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self.regions.append(boto.connect_euca(host=self.eucalyptus_host).region.name, **self.credentials)
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else:
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config_regions_exclude = config.get('ec2', 'regions_exclude')
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for region_info in ec2.regions():
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if region_info.name not in config_regions_exclude:
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self.regions.append(region_info.name)
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else:
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self.regions = config_regions.split(",")
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if 'auto' in self.regions:
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env_region = os.environ.get('AWS_REGION')
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if env_region is None:
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env_region = os.environ.get('AWS_DEFAULT_REGION')
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self.regions = [env_region]
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# Destination addresses
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self.destination_variable = config.get('ec2', 'destination_variable')
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self.vpc_destination_variable = config.get('ec2', 'vpc_destination_variable')
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self.hostname_variable = config.get('ec2', 'hostname_variable')
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if config.has_option('ec2', 'destination_format') and \
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config.has_option('ec2', 'destination_format_tags'):
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self.destination_format = config.get('ec2', 'destination_format')
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self.destination_format_tags = config.get('ec2', 'destination_format_tags').split(',')
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else:
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self.destination_format = None
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self.destination_format_tags = None
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# Route53
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self.route53_enabled = config.getboolean('ec2', 'route53')
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self.route53_hostnames = config.get('ec2', 'route53_hostnames')
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self.route53_excluded_zones = []
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self.route53_excluded_zones = [a for a in config.get('ec2', 'route53_excluded_zones').split(',') if a]
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# Include RDS instances?
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self.rds_enabled = config.getboolean('ec2', 'rds')
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# Include RDS cluster instances?
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self.include_rds_clusters = config.getboolean('ec2', 'include_rds_clusters')
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# Include ElastiCache instances?
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self.elasticache_enabled = config.getboolean('ec2', 'elasticache')
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# Return all EC2 instances?
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self.all_instances = config.getboolean('ec2', 'all_instances')
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# Instance states to be gathered in inventory. Default is 'running'.
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# Setting 'all_instances' to 'yes' overrides this option.
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ec2_valid_instance_states = [
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'pending',
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'running',
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'shutting-down',
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'terminated',
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'stopping',
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'stopped'
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]
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self.ec2_instance_states = []
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if self.all_instances:
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self.ec2_instance_states = ec2_valid_instance_states
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elif config.has_option('ec2', 'instance_states'):
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for instance_state in config.get('ec2', 'instance_states').split(','):
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instance_state = instance_state.strip()
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if instance_state not in ec2_valid_instance_states:
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continue
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self.ec2_instance_states.append(instance_state)
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else:
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self.ec2_instance_states = ['running']
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# Return all RDS instances? (if RDS is enabled)
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self.all_rds_instances = config.getboolean('ec2', 'all_rds_instances')
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# Return all ElastiCache replication groups? (if ElastiCache is enabled)
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self.all_elasticache_replication_groups = config.getboolean('ec2', 'all_elasticache_replication_groups')
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# Return all ElastiCache clusters? (if ElastiCache is enabled)
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self.all_elasticache_clusters = config.getboolean('ec2', 'all_elasticache_clusters')
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# Return all ElastiCache nodes? (if ElastiCache is enabled)
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self.all_elasticache_nodes = config.getboolean('ec2', 'all_elasticache_nodes')
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# boto configuration profile (prefer CLI argument then environment variables then config file)
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self.boto_profile = self.args.boto_profile or \
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os.environ.get('AWS_PROFILE') or \
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config.get('ec2', 'boto_profile')
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# AWS credentials (prefer environment variables)
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if not (self.boto_profile or os.environ.get('AWS_ACCESS_KEY_ID') or
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os.environ.get('AWS_PROFILE')):
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aws_access_key_id = config.get('credentials', 'aws_access_key_id')
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aws_secret_access_key = config.get('credentials', 'aws_secret_access_key')
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aws_security_token = config.get('credentials', 'aws_security_token')
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if aws_access_key_id:
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self.credentials = {
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'aws_access_key_id': aws_access_key_id,
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'aws_secret_access_key': aws_secret_access_key
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}
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if aws_security_token:
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self.credentials['security_token'] = aws_security_token
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# Cache related
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cache_dir = os.path.expanduser(config.get('ec2', 'cache_path'))
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if self.boto_profile:
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cache_dir = os.path.join(cache_dir, 'profile_' + self.boto_profile)
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if not os.path.exists(cache_dir):
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os.makedirs(cache_dir)
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cache_name = 'ansible-ec2'
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cache_id = self.boto_profile or os.environ.get('AWS_ACCESS_KEY_ID', self.credentials.get('aws_access_key_id'))
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if cache_id:
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cache_name = '%s-%s' % (cache_name, cache_id)
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cache_name += '-' + str(abs(hash(__file__)))[1:7]
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self.cache_path_cache = os.path.join(cache_dir, "%s.cache" % cache_name)
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self.cache_path_index = os.path.join(cache_dir, "%s.index" % cache_name)
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self.cache_max_age = config.getint('ec2', 'cache_max_age')
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self.expand_csv_tags = config.getboolean('ec2', 'expand_csv_tags')
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|
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# Configure nested groups instead of flat namespace.
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|
self.nested_groups = config.getboolean('ec2', 'nested_groups')
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|
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# Replace dash or not in group names
|
|
self.replace_dash_in_groups = config.getboolean('ec2', 'replace_dash_in_groups')
|
|
|
|
# IAM role to assume for connection
|
|
self.iam_role = config.get('ec2', 'iam_role')
|
|
|
|
# Configure which groups should be created.
|
|
|
|
group_by_options = [a for a in DEFAULTS if a.startswith('group_by')]
|
|
for option in group_by_options:
|
|
setattr(self, option, config.getboolean('ec2', option))
|
|
|
|
# Do we need to just include hosts that match a pattern?
|
|
self.pattern_include = config.get('ec2', 'pattern_include')
|
|
if self.pattern_include:
|
|
self.pattern_include = re.compile(self.pattern_include)
|
|
|
|
# Do we need to exclude hosts that match a pattern?
|
|
self.pattern_exclude = config.get('ec2', 'pattern_exclude')
|
|
if self.pattern_exclude:
|
|
self.pattern_exclude = re.compile(self.pattern_exclude)
|
|
|
|
# Do we want to stack multiple filters?
|
|
self.stack_filters = config.getboolean('ec2', 'stack_filters')
|
|
|
|
# Instance filters (see boto and EC2 API docs). Ignore invalid filters.
|
|
self.ec2_instance_filters = []
|
|
|
|
if config.has_option('ec2', 'instance_filters') or 'EC2_INSTANCE_FILTERS' in os.environ:
|
|
filters = os.getenv('EC2_INSTANCE_FILTERS', config.get('ec2', 'instance_filters') if config.has_option('ec2', 'instance_filters') else '')
|
|
|
|
if self.stack_filters and '&' in filters:
|
|
self.fail_with_error("AND filters along with stack_filter enabled is not supported.\n")
|
|
|
|
filter_sets = [f for f in filters.split(',') if f]
|
|
|
|
for filter_set in filter_sets:
|
|
filters = {}
|
|
filter_set = filter_set.strip()
|
|
for instance_filter in filter_set.split("&"):
|
|
instance_filter = instance_filter.strip()
|
|
if not instance_filter or '=' not in instance_filter:
|
|
continue
|
|
filter_key, filter_value = [x.strip() for x in instance_filter.split('=', 1)]
|
|
if not filter_key:
|
|
continue
|
|
filters[filter_key] = filter_value
|
|
self.ec2_instance_filters.append(filters.copy())
|
|
|
|
def parse_cli_args(self):
|
|
''' Command line argument processing '''
|
|
|
|
parser = argparse.ArgumentParser(description='Produce an Ansible Inventory file based on EC2')
|
|
parser.add_argument('--list', action='store_true', default=True,
|
|
help='List instances (default: True)')
|
|
parser.add_argument('--host', action='store',
|
|
help='Get all the variables about a specific instance')
|
|
parser.add_argument('--refresh-cache', action='store_true', default=False,
|
|
help='Force refresh of cache by making API requests to EC2 (default: False - use cache files)')
|
|
parser.add_argument('--profile', '--boto-profile', action='store', dest='boto_profile',
|
|
help='Use boto profile for connections to EC2')
|
|
self.args = parser.parse_args()
|
|
|
|
def do_api_calls_update_cache(self):
|
|
''' Do API calls to each region, and save data in cache files '''
|
|
|
|
if self.route53_enabled:
|
|
self.get_route53_records()
|
|
|
|
for region in self.regions:
|
|
self.get_instances_by_region(region)
|
|
if self.rds_enabled:
|
|
self.get_rds_instances_by_region(region)
|
|
if self.elasticache_enabled:
|
|
self.get_elasticache_clusters_by_region(region)
|
|
self.get_elasticache_replication_groups_by_region(region)
|
|
if self.include_rds_clusters:
|
|
self.include_rds_clusters_by_region(region)
|
|
|
|
self.write_to_cache(self.inventory, self.cache_path_cache)
|
|
self.write_to_cache(self.index, self.cache_path_index)
|
|
|
|
def connect(self, region):
|
|
''' create connection to api server'''
|
|
if self.eucalyptus:
|
|
conn = boto.connect_euca(host=self.eucalyptus_host, **self.credentials)
|
|
conn.APIVersion = '2010-08-31'
|
|
else:
|
|
conn = self.connect_to_aws(ec2, region)
|
|
return conn
|
|
|
|
def boto_fix_security_token_in_profile(self, connect_args):
|
|
''' monkey patch for boto issue boto/boto#2100 '''
|
|
profile = 'profile ' + self.boto_profile
|
|
if boto.config.has_option(profile, 'aws_security_token'):
|
|
connect_args['security_token'] = boto.config.get(profile, 'aws_security_token')
|
|
return connect_args
|
|
|
|
def connect_to_aws(self, module, region):
|
|
connect_args = deepcopy(self.credentials)
|
|
|
|
# only pass the profile name if it's set (as it is not supported by older boto versions)
|
|
if self.boto_profile:
|
|
connect_args['profile_name'] = self.boto_profile
|
|
self.boto_fix_security_token_in_profile(connect_args)
|
|
elif os.environ.get('AWS_SESSION_TOKEN'):
|
|
connect_args['security_token'] = os.environ.get('AWS_SESSION_TOKEN')
|
|
|
|
if self.iam_role:
|
|
sts_conn = sts.connect_to_region(region, **connect_args)
|
|
role = sts_conn.assume_role(self.iam_role, 'ansible_dynamic_inventory')
|
|
connect_args['aws_access_key_id'] = role.credentials.access_key
|
|
connect_args['aws_secret_access_key'] = role.credentials.secret_key
|
|
connect_args['security_token'] = role.credentials.session_token
|
|
|
|
conn = module.connect_to_region(region, **connect_args)
|
|
# connect_to_region will fail "silently" by returning None if the region name is wrong or not supported
|
|
if conn is None:
|
|
self.fail_with_error("region name: %s likely not supported, or AWS is down. connection to region failed." % region)
|
|
return conn
|
|
|
|
def get_instances_by_region(self, region):
|
|
''' Makes an AWS EC2 API call to the list of instances in a particular
|
|
region '''
|
|
|
|
try:
|
|
conn = self.connect(region)
|
|
reservations = []
|
|
if self.ec2_instance_filters:
|
|
if self.stack_filters:
|
|
filters_dict = {}
|
|
for filters in self.ec2_instance_filters:
|
|
filters_dict.update(filters)
|
|
reservations.extend(conn.get_all_instances(filters=filters_dict))
|
|
else:
|
|
for filters in self.ec2_instance_filters:
|
|
reservations.extend(conn.get_all_instances(filters=filters))
|
|
else:
|
|
reservations = conn.get_all_instances()
|
|
|
|
# Pull the tags back in a second step
|
|
# AWS are on record as saying that the tags fetched in the first `get_all_instances` request are not
|
|
# reliable and may be missing, and the only way to guarantee they are there is by calling `get_all_tags`
|
|
instance_ids = []
|
|
for reservation in reservations:
|
|
instance_ids.extend([instance.id for instance in reservation.instances])
|
|
|
|
max_filter_value = 199
|
|
tags = []
|
|
for i in range(0, len(instance_ids), max_filter_value):
|
|
tags.extend(conn.get_all_tags(filters={'resource-type': 'instance', 'resource-id': instance_ids[i:i + max_filter_value]}))
|
|
|
|
tags_by_instance_id = defaultdict(dict)
|
|
for tag in tags:
|
|
tags_by_instance_id[tag.res_id][tag.name] = tag.value
|
|
|
|
if (not self.aws_account_id) and reservations:
|
|
self.aws_account_id = reservations[0].owner_id
|
|
|
|
for reservation in reservations:
|
|
for instance in reservation.instances:
|
|
instance.tags = tags_by_instance_id[instance.id]
|
|
self.add_instance(instance, region)
|
|
|
|
except boto.exception.BotoServerError as e:
|
|
if e.error_code == 'AuthFailure':
|
|
error = self.get_auth_error_message()
|
|
else:
|
|
backend = 'Eucalyptus' if self.eucalyptus else 'AWS'
|
|
error = "Error connecting to %s backend.\n%s" % (backend, e.message)
|
|
self.fail_with_error(error, 'getting EC2 instances')
|
|
|
|
def tags_match_filters(self, tags):
|
|
''' return True if given tags match configured filters '''
|
|
if not self.ec2_instance_filters:
|
|
return True
|
|
|
|
for filters in self.ec2_instance_filters:
|
|
for filter_name, filter_value in filters.items():
|
|
if filter_name[:4] != 'tag:':
|
|
continue
|
|
filter_name = filter_name[4:]
|
|
if filter_name not in tags:
|
|
if self.stack_filters:
|
|
return False
|
|
continue
|
|
if isinstance(filter_value, list):
|
|
if self.stack_filters and tags[filter_name] not in filter_value:
|
|
return False
|
|
if not self.stack_filters and tags[filter_name] in filter_value:
|
|
return True
|
|
if isinstance(filter_value, six.string_types):
|
|
if self.stack_filters and tags[filter_name] != filter_value:
|
|
return False
|
|
if not self.stack_filters and tags[filter_name] == filter_value:
|
|
return True
|
|
|
|
return self.stack_filters
|
|
|
|
def get_rds_instances_by_region(self, region):
|
|
''' Makes an AWS API call to the list of RDS instances in a particular
|
|
region '''
|
|
|
|
if not HAS_BOTO3:
|
|
self.fail_with_error("Working with RDS instances requires boto3 - please install boto3 and try again",
|
|
"getting RDS instances")
|
|
|
|
client = ec2_utils.boto3_inventory_conn('client', 'rds', region, **self.credentials)
|
|
db_instances = client.describe_db_instances()
|
|
|
|
try:
|
|
conn = self.connect_to_aws(rds, region)
|
|
if conn:
|
|
marker = None
|
|
while True:
|
|
instances = conn.get_all_dbinstances(marker=marker)
|
|
marker = instances.marker
|
|
for index, instance in enumerate(instances):
|
|
# Add tags to instances.
|
|
instance.arn = db_instances['DBInstances'][index]['DBInstanceArn']
|
|
tags = client.list_tags_for_resource(ResourceName=instance.arn)['TagList']
|
|
instance.tags = {}
|
|
for tag in tags:
|
|
instance.tags[tag['Key']] = tag['Value']
|
|
if self.tags_match_filters(instance.tags):
|
|
self.add_rds_instance(instance, region)
|
|
if not marker:
|
|
break
|
|
except boto.exception.BotoServerError as e:
|
|
error = e.reason
|
|
|
|
if e.error_code == 'AuthFailure':
|
|
error = self.get_auth_error_message()
|
|
elif e.error_code == "OptInRequired":
|
|
error = "RDS hasn't been enabled for this account yet. " \
|
|
"You must either log in to the RDS service through the AWS console to enable it, " \
|
|
"or set 'rds = False' in ec2.ini"
|
|
elif not e.reason == "Forbidden":
|
|
error = "Looks like AWS RDS is down:\n%s" % e.message
|
|
self.fail_with_error(error, 'getting RDS instances')
|
|
|
|
def include_rds_clusters_by_region(self, region):
|
|
if not HAS_BOTO3:
|
|
self.fail_with_error("Working with RDS clusters requires boto3 - please install boto3 and try again",
|
|
"getting RDS clusters")
|
|
|
|
client = ec2_utils.boto3_inventory_conn('client', 'rds', region, **self.credentials)
|
|
|
|
marker, clusters = '', []
|
|
while marker is not None:
|
|
resp = client.describe_db_clusters(Marker=marker)
|
|
clusters.extend(resp["DBClusters"])
|
|
marker = resp.get('Marker', None)
|
|
|
|
account_id = boto.connect_iam().get_user().arn.split(':')[4]
|
|
c_dict = {}
|
|
for c in clusters:
|
|
if not self.ec2_instance_filters:
|
|
matches_filter = True
|
|
else:
|
|
matches_filter = False
|
|
|
|
try:
|
|
# arn:aws:rds:<region>:<account number>:<resourcetype>:<name>
|
|
tags = client.list_tags_for_resource(
|
|
ResourceName='arn:aws:rds:' + region + ':' + account_id + ':cluster:' + c['DBClusterIdentifier'])
|
|
c['Tags'] = tags['TagList']
|
|
|
|
if self.ec2_instance_filters:
|
|
for filters in self.ec2_instance_filters:
|
|
for filter_key, filter_values in filters.items():
|
|
# get AWS tag key e.g. tag:env will be 'env'
|
|
tag_name = filter_key.split(":", 1)[1]
|
|
# Filter values is a list (if you put multiple values for the same tag name)
|
|
matches_filter = any(d['Key'] == tag_name and d['Value'] in filter_values for d in c['Tags'])
|
|
|
|
if matches_filter:
|
|
# it matches a filter, so stop looking for further matches
|
|
break
|
|
|
|
if matches_filter:
|
|
break
|
|
|
|
except Exception as e:
|
|
if e.message.find('DBInstanceNotFound') >= 0:
|
|
# AWS RDS bug (2016-01-06) means deletion does not fully complete and leave an 'empty' cluster.
|
|
# Ignore errors when trying to find tags for these
|
|
pass
|
|
|
|
# ignore empty clusters caused by AWS bug
|
|
if len(c['DBClusterMembers']) == 0:
|
|
continue
|
|
elif matches_filter:
|
|
c_dict[c['DBClusterIdentifier']] = c
|
|
|
|
self.inventory['db_clusters'] = c_dict
|
|
|
|
def get_elasticache_clusters_by_region(self, region):
|
|
''' Makes an AWS API call to the list of ElastiCache clusters (with
|
|
nodes' info) in a particular region.'''
|
|
|
|
# ElastiCache boto module doesn't provide a get_all_instances method,
|
|
# that's why we need to call describe directly (it would be called by
|
|
# the shorthand method anyway...)
|
|
clusters = []
|
|
try:
|
|
conn = self.connect_to_aws(elasticache, region)
|
|
if conn:
|
|
# show_cache_node_info = True
|
|
# because we also want nodes' information
|
|
_marker = 1
|
|
while _marker:
|
|
if _marker == 1:
|
|
_marker = None
|
|
response = conn.describe_cache_clusters(None, None, _marker, True)
|
|
_marker = response['DescribeCacheClustersResponse']['DescribeCacheClustersResult']['Marker']
|
|
try:
|
|
# Boto also doesn't provide wrapper classes to CacheClusters or
|
|
# CacheNodes. Because of that we can't make use of the get_list
|
|
# method in the AWSQueryConnection. Let's do the work manually
|
|
clusters = clusters + response['DescribeCacheClustersResponse']['DescribeCacheClustersResult']['CacheClusters']
|
|
except KeyError as e:
|
|
error = "ElastiCache query to AWS failed (unexpected format)."
|
|
self.fail_with_error(error, 'getting ElastiCache clusters')
|
|
except boto.exception.BotoServerError as e:
|
|
error = e.reason
|
|
|
|
if e.error_code == 'AuthFailure':
|
|
error = self.get_auth_error_message()
|
|
elif e.error_code == "OptInRequired":
|
|
error = "ElastiCache hasn't been enabled for this account yet. " \
|
|
"You must either log in to the ElastiCache service through the AWS console to enable it, " \
|
|
"or set 'elasticache = False' in ec2.ini"
|
|
elif not e.reason == "Forbidden":
|
|
error = "Looks like AWS ElastiCache is down:\n%s" % e.message
|
|
self.fail_with_error(error, 'getting ElastiCache clusters')
|
|
|
|
for cluster in clusters:
|
|
self.add_elasticache_cluster(cluster, region)
|
|
|
|
def get_elasticache_replication_groups_by_region(self, region):
|
|
''' Makes an AWS API call to the list of ElastiCache replication groups
|
|
in a particular region.'''
|
|
|
|
# ElastiCache boto module doesn't provide a get_all_instances method,
|
|
# that's why we need to call describe directly (it would be called by
|
|
# the shorthand method anyway...)
|
|
try:
|
|
conn = self.connect_to_aws(elasticache, region)
|
|
if conn:
|
|
response = conn.describe_replication_groups()
|
|
|
|
except boto.exception.BotoServerError as e:
|
|
error = e.reason
|
|
|
|
if e.error_code == 'AuthFailure':
|
|
error = self.get_auth_error_message()
|
|
if not e.reason == "Forbidden":
|
|
error = "Looks like AWS ElastiCache [Replication Groups] is down:\n%s" % e.message
|
|
self.fail_with_error(error, 'getting ElastiCache clusters')
|
|
|
|
try:
|
|
# Boto also doesn't provide wrapper classes to ReplicationGroups
|
|
# Because of that we can't make use of the get_list method in the
|
|
# AWSQueryConnection. Let's do the work manually
|
|
replication_groups = response['DescribeReplicationGroupsResponse']['DescribeReplicationGroupsResult']['ReplicationGroups']
|
|
|
|
except KeyError as e:
|
|
error = "ElastiCache [Replication Groups] query to AWS failed (unexpected format)."
|
|
self.fail_with_error(error, 'getting ElastiCache clusters')
|
|
|
|
for replication_group in replication_groups:
|
|
self.add_elasticache_replication_group(replication_group, region)
|
|
|
|
def get_auth_error_message(self):
|
|
''' create an informative error message if there is an issue authenticating'''
|
|
errors = ["Authentication error retrieving ec2 inventory."]
|
|
if None in [os.environ.get('AWS_ACCESS_KEY_ID'), os.environ.get('AWS_SECRET_ACCESS_KEY')]:
|
|
errors.append(' - No AWS_ACCESS_KEY_ID or AWS_SECRET_ACCESS_KEY environment vars found')
|
|
else:
|
|
errors.append(' - AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY environment vars found but may not be correct')
|
|
|
|
boto_paths = ['/etc/boto.cfg', '~/.boto', '~/.aws/credentials']
|
|
boto_config_found = [p for p in boto_paths if os.path.isfile(os.path.expanduser(p))]
|
|
if len(boto_config_found) > 0:
|
|
errors.append(" - Boto configs found at '%s', but the credentials contained may not be correct" % ', '.join(boto_config_found))
|
|
else:
|
|
errors.append(" - No Boto config found at any expected location '%s'" % ', '.join(boto_paths))
|
|
|
|
return '\n'.join(errors)
|
|
|
|
def fail_with_error(self, err_msg, err_operation=None):
|
|
'''log an error to std err for ansible-playbook to consume and exit'''
|
|
if err_operation:
|
|
err_msg = 'ERROR: "{err_msg}", while: {err_operation}'.format(
|
|
err_msg=err_msg, err_operation=err_operation)
|
|
sys.stderr.write(err_msg)
|
|
sys.exit(1)
|
|
|
|
def get_instance(self, region, instance_id):
|
|
conn = self.connect(region)
|
|
|
|
reservations = conn.get_all_instances([instance_id])
|
|
for reservation in reservations:
|
|
for instance in reservation.instances:
|
|
return instance
|
|
|
|
def add_instance(self, instance, region):
|
|
''' Adds an instance to the inventory and index, as long as it is
|
|
addressable '''
|
|
|
|
# Only return instances with desired instance states
|
|
if instance.state not in self.ec2_instance_states:
|
|
return
|
|
|
|
# Select the best destination address
|
|
# When destination_format and destination_format_tags are specified
|
|
# the following code will attempt to find the instance tags first,
|
|
# then the instance attributes next, and finally if neither are found
|
|
# assign nil for the desired destination format attribute.
|
|
if self.destination_format and self.destination_format_tags:
|
|
dest_vars = []
|
|
inst_tags = getattr(instance, 'tags')
|
|
for tag in self.destination_format_tags:
|
|
if tag in inst_tags:
|
|
dest_vars.append(inst_tags[tag])
|
|
elif hasattr(instance, tag):
|
|
dest_vars.append(getattr(instance, tag))
|
|
else:
|
|
dest_vars.append('nil')
|
|
|
|
dest = self.destination_format.format(*dest_vars)
|
|
elif instance.subnet_id:
|
|
dest = getattr(instance, self.vpc_destination_variable, None)
|
|
if dest is None:
|
|
dest = getattr(instance, 'tags').get(self.vpc_destination_variable, None)
|
|
else:
|
|
dest = getattr(instance, self.destination_variable, None)
|
|
if dest is None:
|
|
dest = getattr(instance, 'tags').get(self.destination_variable, None)
|
|
|
|
if not dest:
|
|
# Skip instances we cannot address (e.g. private VPC subnet)
|
|
return
|
|
|
|
# Set the inventory name
|
|
hostname = None
|
|
if self.hostname_variable:
|
|
if self.hostname_variable.startswith('tag_'):
|
|
hostname = instance.tags.get(self.hostname_variable[4:], None)
|
|
else:
|
|
hostname = getattr(instance, self.hostname_variable)
|
|
|
|
# set the hostname from route53
|
|
if self.route53_enabled and self.route53_hostnames:
|
|
route53_names = self.get_instance_route53_names(instance)
|
|
for name in route53_names:
|
|
if name.endswith(self.route53_hostnames):
|
|
hostname = name
|
|
|
|
# If we can't get a nice hostname, use the destination address
|
|
if not hostname:
|
|
hostname = dest
|
|
# to_safe strips hostname characters like dots, so don't strip route53 hostnames
|
|
elif self.route53_enabled and self.route53_hostnames and hostname.endswith(self.route53_hostnames):
|
|
hostname = hostname.lower()
|
|
else:
|
|
hostname = self.to_safe(hostname).lower()
|
|
|
|
# if we only want to include hosts that match a pattern, skip those that don't
|
|
if self.pattern_include and not self.pattern_include.match(hostname):
|
|
return
|
|
|
|
# if we need to exclude hosts that match a pattern, skip those
|
|
if self.pattern_exclude and self.pattern_exclude.match(hostname):
|
|
return
|
|
|
|
# Add to index
|
|
self.index[hostname] = [region, instance.id]
|
|
|
|
# Inventory: Group by instance ID (always a group of 1)
|
|
if self.group_by_instance_id:
|
|
self.inventory[instance.id] = [hostname]
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'instances', instance.id)
|
|
|
|
# Inventory: Group by region
|
|
if self.group_by_region:
|
|
self.push(self.inventory, region, hostname)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'regions', region)
|
|
|
|
# Inventory: Group by availability zone
|
|
if self.group_by_availability_zone:
|
|
self.push(self.inventory, instance.placement, hostname)
|
|
if self.nested_groups:
|
|
if self.group_by_region:
|
|
self.push_group(self.inventory, region, instance.placement)
|
|
self.push_group(self.inventory, 'zones', instance.placement)
|
|
|
|
# Inventory: Group by Amazon Machine Image (AMI) ID
|
|
if self.group_by_ami_id:
|
|
ami_id = self.to_safe(instance.image_id)
|
|
self.push(self.inventory, ami_id, hostname)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'images', ami_id)
|
|
|
|
# Inventory: Group by instance type
|
|
if self.group_by_instance_type:
|
|
type_name = self.to_safe('type_' + instance.instance_type)
|
|
self.push(self.inventory, type_name, hostname)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'types', type_name)
|
|
|
|
# Inventory: Group by instance state
|
|
if self.group_by_instance_state:
|
|
state_name = self.to_safe('instance_state_' + instance.state)
|
|
self.push(self.inventory, state_name, hostname)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'instance_states', state_name)
|
|
|
|
# Inventory: Group by platform
|
|
if self.group_by_platform:
|
|
if instance.platform:
|
|
platform = self.to_safe('platform_' + instance.platform)
|
|
else:
|
|
platform = self.to_safe('platform_undefined')
|
|
self.push(self.inventory, platform, hostname)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'platforms', platform)
|
|
|
|
# Inventory: Group by key pair
|
|
if self.group_by_key_pair and instance.key_name:
|
|
key_name = self.to_safe('key_' + instance.key_name)
|
|
self.push(self.inventory, key_name, hostname)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'keys', key_name)
|
|
|
|
# Inventory: Group by VPC
|
|
if self.group_by_vpc_id and instance.vpc_id:
|
|
vpc_id_name = self.to_safe('vpc_id_' + instance.vpc_id)
|
|
self.push(self.inventory, vpc_id_name, hostname)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'vpcs', vpc_id_name)
|
|
|
|
# Inventory: Group by security group
|
|
if self.group_by_security_group:
|
|
try:
|
|
for group in instance.groups:
|
|
key = self.to_safe("security_group_" + group.name)
|
|
self.push(self.inventory, key, hostname)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'security_groups', key)
|
|
except AttributeError:
|
|
self.fail_with_error('\n'.join(['Package boto seems a bit older.',
|
|
'Please upgrade boto >= 2.3.0.']))
|
|
|
|
# Inventory: Group by AWS account ID
|
|
if self.group_by_aws_account:
|
|
self.push(self.inventory, self.aws_account_id, hostname)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'accounts', self.aws_account_id)
|
|
|
|
# Inventory: Group by tag keys
|
|
if self.group_by_tag_keys:
|
|
for k, v in instance.tags.items():
|
|
if self.expand_csv_tags and v and ',' in v:
|
|
values = map(lambda x: x.strip(), v.split(','))
|
|
else:
|
|
values = [v]
|
|
|
|
for v in values:
|
|
if v:
|
|
key = self.to_safe("tag_" + k + "=" + v)
|
|
else:
|
|
key = self.to_safe("tag_" + k)
|
|
self.push(self.inventory, key, hostname)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'tags', self.to_safe("tag_" + k))
|
|
if v:
|
|
self.push_group(self.inventory, self.to_safe("tag_" + k), key)
|
|
|
|
# Inventory: Group by Route53 domain names if enabled
|
|
if self.route53_enabled and self.group_by_route53_names:
|
|
route53_names = self.get_instance_route53_names(instance)
|
|
for name in route53_names:
|
|
self.push(self.inventory, name, hostname)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'route53', name)
|
|
|
|
# Global Tag: instances without tags
|
|
if self.group_by_tag_none and len(instance.tags) == 0:
|
|
self.push(self.inventory, 'tag_none', hostname)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'tags', 'tag_none')
|
|
|
|
# Global Tag: tag all EC2 instances
|
|
self.push(self.inventory, 'ec2', hostname)
|
|
|
|
self.inventory["_meta"]["hostvars"][hostname] = self.get_host_info_dict_from_instance(instance)
|
|
self.inventory["_meta"]["hostvars"][hostname]['ansible_host'] = dest
|
|
|
|
def add_rds_instance(self, instance, region):
|
|
''' Adds an RDS instance to the inventory and index, as long as it is
|
|
addressable '''
|
|
|
|
# Only want available instances unless all_rds_instances is True
|
|
if not self.all_rds_instances and instance.status != 'available':
|
|
return
|
|
|
|
# Select the best destination address
|
|
dest = instance.endpoint[0]
|
|
|
|
if not dest:
|
|
# Skip instances we cannot address (e.g. private VPC subnet)
|
|
return
|
|
|
|
# Set the inventory name
|
|
hostname = None
|
|
if self.hostname_variable:
|
|
if self.hostname_variable.startswith('tag_'):
|
|
hostname = instance.tags.get(self.hostname_variable[4:], None)
|
|
else:
|
|
hostname = getattr(instance, self.hostname_variable)
|
|
|
|
# If we can't get a nice hostname, use the destination address
|
|
if not hostname:
|
|
hostname = dest
|
|
|
|
hostname = self.to_safe(hostname).lower()
|
|
|
|
# Add to index
|
|
self.index[hostname] = [region, instance.id]
|
|
|
|
# Inventory: Group by instance ID (always a group of 1)
|
|
if self.group_by_instance_id:
|
|
self.inventory[instance.id] = [hostname]
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'instances', instance.id)
|
|
|
|
# Inventory: Group by region
|
|
if self.group_by_region:
|
|
self.push(self.inventory, region, hostname)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'regions', region)
|
|
|
|
# Inventory: Group by availability zone
|
|
if self.group_by_availability_zone:
|
|
self.push(self.inventory, instance.availability_zone, hostname)
|
|
if self.nested_groups:
|
|
if self.group_by_region:
|
|
self.push_group(self.inventory, region, instance.availability_zone)
|
|
self.push_group(self.inventory, 'zones', instance.availability_zone)
|
|
|
|
# Inventory: Group by instance type
|
|
if self.group_by_instance_type:
|
|
type_name = self.to_safe('type_' + instance.instance_class)
|
|
self.push(self.inventory, type_name, hostname)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'types', type_name)
|
|
|
|
# Inventory: Group by VPC
|
|
if self.group_by_vpc_id and instance.subnet_group and instance.subnet_group.vpc_id:
|
|
vpc_id_name = self.to_safe('vpc_id_' + instance.subnet_group.vpc_id)
|
|
self.push(self.inventory, vpc_id_name, hostname)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'vpcs', vpc_id_name)
|
|
|
|
# Inventory: Group by security group
|
|
if self.group_by_security_group:
|
|
try:
|
|
if instance.security_group:
|
|
key = self.to_safe("security_group_" + instance.security_group.name)
|
|
self.push(self.inventory, key, hostname)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'security_groups', key)
|
|
|
|
except AttributeError:
|
|
self.fail_with_error('\n'.join(['Package boto seems a bit older.',
|
|
'Please upgrade boto >= 2.3.0.']))
|
|
# Inventory: Group by tag keys
|
|
if self.group_by_tag_keys:
|
|
for k, v in instance.tags.items():
|
|
if self.expand_csv_tags and v and ',' in v:
|
|
values = map(lambda x: x.strip(), v.split(','))
|
|
else:
|
|
values = [v]
|
|
|
|
for v in values:
|
|
if v:
|
|
key = self.to_safe("tag_" + k + "=" + v)
|
|
else:
|
|
key = self.to_safe("tag_" + k)
|
|
self.push(self.inventory, key, hostname)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'tags', self.to_safe("tag_" + k))
|
|
if v:
|
|
self.push_group(self.inventory, self.to_safe("tag_" + k), key)
|
|
|
|
# Inventory: Group by engine
|
|
if self.group_by_rds_engine:
|
|
self.push(self.inventory, self.to_safe("rds_" + instance.engine), hostname)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'rds_engines', self.to_safe("rds_" + instance.engine))
|
|
|
|
# Inventory: Group by parameter group
|
|
if self.group_by_rds_parameter_group:
|
|
self.push(self.inventory, self.to_safe("rds_parameter_group_" + instance.parameter_group.name), hostname)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'rds_parameter_groups', self.to_safe("rds_parameter_group_" + instance.parameter_group.name))
|
|
|
|
# Global Tag: instances without tags
|
|
if self.group_by_tag_none and len(instance.tags) == 0:
|
|
self.push(self.inventory, 'tag_none', hostname)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'tags', 'tag_none')
|
|
|
|
# Global Tag: all RDS instances
|
|
self.push(self.inventory, 'rds', hostname)
|
|
|
|
self.inventory["_meta"]["hostvars"][hostname] = self.get_host_info_dict_from_instance(instance)
|
|
self.inventory["_meta"]["hostvars"][hostname]['ansible_host'] = dest
|
|
|
|
def add_elasticache_cluster(self, cluster, region):
|
|
''' Adds an ElastiCache cluster to the inventory and index, as long as
|
|
it's nodes are addressable '''
|
|
|
|
# Only want available clusters unless all_elasticache_clusters is True
|
|
if not self.all_elasticache_clusters and cluster['CacheClusterStatus'] != 'available':
|
|
return
|
|
|
|
# Select the best destination address
|
|
if 'ConfigurationEndpoint' in cluster and cluster['ConfigurationEndpoint']:
|
|
# Memcached cluster
|
|
dest = cluster['ConfigurationEndpoint']['Address']
|
|
is_redis = False
|
|
else:
|
|
# Redis sigle node cluster
|
|
# Because all Redis clusters are single nodes, we'll merge the
|
|
# info from the cluster with info about the node
|
|
dest = cluster['CacheNodes'][0]['Endpoint']['Address']
|
|
is_redis = True
|
|
|
|
if not dest:
|
|
# Skip clusters we cannot address (e.g. private VPC subnet)
|
|
return
|
|
|
|
# Add to index
|
|
self.index[dest] = [region, cluster['CacheClusterId']]
|
|
|
|
# Inventory: Group by instance ID (always a group of 1)
|
|
if self.group_by_instance_id:
|
|
self.inventory[cluster['CacheClusterId']] = [dest]
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'instances', cluster['CacheClusterId'])
|
|
|
|
# Inventory: Group by region
|
|
if self.group_by_region and not is_redis:
|
|
self.push(self.inventory, region, dest)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'regions', region)
|
|
|
|
# Inventory: Group by availability zone
|
|
if self.group_by_availability_zone and not is_redis:
|
|
self.push(self.inventory, cluster['PreferredAvailabilityZone'], dest)
|
|
if self.nested_groups:
|
|
if self.group_by_region:
|
|
self.push_group(self.inventory, region, cluster['PreferredAvailabilityZone'])
|
|
self.push_group(self.inventory, 'zones', cluster['PreferredAvailabilityZone'])
|
|
|
|
# Inventory: Group by node type
|
|
if self.group_by_instance_type and not is_redis:
|
|
type_name = self.to_safe('type_' + cluster['CacheNodeType'])
|
|
self.push(self.inventory, type_name, dest)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'types', type_name)
|
|
|
|
# Inventory: Group by VPC (information not available in the current
|
|
# AWS API version for ElastiCache)
|
|
|
|
# Inventory: Group by security group
|
|
if self.group_by_security_group and not is_redis:
|
|
|
|
# Check for the existence of the 'SecurityGroups' key and also if
|
|
# this key has some value. When the cluster is not placed in a SG
|
|
# the query can return None here and cause an error.
|
|
if 'SecurityGroups' in cluster and cluster['SecurityGroups'] is not None:
|
|
for security_group in cluster['SecurityGroups']:
|
|
key = self.to_safe("security_group_" + security_group['SecurityGroupId'])
|
|
self.push(self.inventory, key, dest)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'security_groups', key)
|
|
|
|
# Inventory: Group by engine
|
|
if self.group_by_elasticache_engine and not is_redis:
|
|
self.push(self.inventory, self.to_safe("elasticache_" + cluster['Engine']), dest)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'elasticache_engines', self.to_safe(cluster['Engine']))
|
|
|
|
# Inventory: Group by parameter group
|
|
if self.group_by_elasticache_parameter_group:
|
|
self.push(self.inventory, self.to_safe("elasticache_parameter_group_" + cluster['CacheParameterGroup']['CacheParameterGroupName']), dest)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'elasticache_parameter_groups', self.to_safe(cluster['CacheParameterGroup']['CacheParameterGroupName']))
|
|
|
|
# Inventory: Group by replication group
|
|
if self.group_by_elasticache_replication_group and 'ReplicationGroupId' in cluster and cluster['ReplicationGroupId']:
|
|
self.push(self.inventory, self.to_safe("elasticache_replication_group_" + cluster['ReplicationGroupId']), dest)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'elasticache_replication_groups', self.to_safe(cluster['ReplicationGroupId']))
|
|
|
|
# Global Tag: all ElastiCache clusters
|
|
self.push(self.inventory, 'elasticache_clusters', cluster['CacheClusterId'])
|
|
|
|
host_info = self.get_host_info_dict_from_describe_dict(cluster)
|
|
|
|
self.inventory["_meta"]["hostvars"][dest] = host_info
|
|
|
|
# Add the nodes
|
|
for node in cluster['CacheNodes']:
|
|
self.add_elasticache_node(node, cluster, region)
|
|
|
|
def add_elasticache_node(self, node, cluster, region):
|
|
''' Adds an ElastiCache node to the inventory and index, as long as
|
|
it is addressable '''
|
|
|
|
# Only want available nodes unless all_elasticache_nodes is True
|
|
if not self.all_elasticache_nodes and node['CacheNodeStatus'] != 'available':
|
|
return
|
|
|
|
# Select the best destination address
|
|
dest = node['Endpoint']['Address']
|
|
|
|
if not dest:
|
|
# Skip nodes we cannot address (e.g. private VPC subnet)
|
|
return
|
|
|
|
node_id = self.to_safe(cluster['CacheClusterId'] + '_' + node['CacheNodeId'])
|
|
|
|
# Add to index
|
|
self.index[dest] = [region, node_id]
|
|
|
|
# Inventory: Group by node ID (always a group of 1)
|
|
if self.group_by_instance_id:
|
|
self.inventory[node_id] = [dest]
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'instances', node_id)
|
|
|
|
# Inventory: Group by region
|
|
if self.group_by_region:
|
|
self.push(self.inventory, region, dest)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'regions', region)
|
|
|
|
# Inventory: Group by availability zone
|
|
if self.group_by_availability_zone:
|
|
self.push(self.inventory, cluster['PreferredAvailabilityZone'], dest)
|
|
if self.nested_groups:
|
|
if self.group_by_region:
|
|
self.push_group(self.inventory, region, cluster['PreferredAvailabilityZone'])
|
|
self.push_group(self.inventory, 'zones', cluster['PreferredAvailabilityZone'])
|
|
|
|
# Inventory: Group by node type
|
|
if self.group_by_instance_type:
|
|
type_name = self.to_safe('type_' + cluster['CacheNodeType'])
|
|
self.push(self.inventory, type_name, dest)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'types', type_name)
|
|
|
|
# Inventory: Group by VPC (information not available in the current
|
|
# AWS API version for ElastiCache)
|
|
|
|
# Inventory: Group by security group
|
|
if self.group_by_security_group:
|
|
|
|
# Check for the existence of the 'SecurityGroups' key and also if
|
|
# this key has some value. When the cluster is not placed in a SG
|
|
# the query can return None here and cause an error.
|
|
if 'SecurityGroups' in cluster and cluster['SecurityGroups'] is not None:
|
|
for security_group in cluster['SecurityGroups']:
|
|
key = self.to_safe("security_group_" + security_group['SecurityGroupId'])
|
|
self.push(self.inventory, key, dest)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'security_groups', key)
|
|
|
|
# Inventory: Group by engine
|
|
if self.group_by_elasticache_engine:
|
|
self.push(self.inventory, self.to_safe("elasticache_" + cluster['Engine']), dest)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'elasticache_engines', self.to_safe("elasticache_" + cluster['Engine']))
|
|
|
|
# Inventory: Group by parameter group (done at cluster level)
|
|
|
|
# Inventory: Group by replication group (done at cluster level)
|
|
|
|
# Inventory: Group by ElastiCache Cluster
|
|
if self.group_by_elasticache_cluster:
|
|
self.push(self.inventory, self.to_safe("elasticache_cluster_" + cluster['CacheClusterId']), dest)
|
|
|
|
# Global Tag: all ElastiCache nodes
|
|
self.push(self.inventory, 'elasticache_nodes', dest)
|
|
|
|
host_info = self.get_host_info_dict_from_describe_dict(node)
|
|
|
|
if dest in self.inventory["_meta"]["hostvars"]:
|
|
self.inventory["_meta"]["hostvars"][dest].update(host_info)
|
|
else:
|
|
self.inventory["_meta"]["hostvars"][dest] = host_info
|
|
|
|
def add_elasticache_replication_group(self, replication_group, region):
|
|
''' Adds an ElastiCache replication group to the inventory and index '''
|
|
|
|
# Only want available clusters unless all_elasticache_replication_groups is True
|
|
if not self.all_elasticache_replication_groups and replication_group['Status'] != 'available':
|
|
return
|
|
|
|
# Skip clusters we cannot address (e.g. private VPC subnet or clustered redis)
|
|
if replication_group['NodeGroups'][0]['PrimaryEndpoint'] is None or \
|
|
replication_group['NodeGroups'][0]['PrimaryEndpoint']['Address'] is None:
|
|
return
|
|
|
|
# Select the best destination address (PrimaryEndpoint)
|
|
dest = replication_group['NodeGroups'][0]['PrimaryEndpoint']['Address']
|
|
|
|
# Add to index
|
|
self.index[dest] = [region, replication_group['ReplicationGroupId']]
|
|
|
|
# Inventory: Group by ID (always a group of 1)
|
|
if self.group_by_instance_id:
|
|
self.inventory[replication_group['ReplicationGroupId']] = [dest]
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'instances', replication_group['ReplicationGroupId'])
|
|
|
|
# Inventory: Group by region
|
|
if self.group_by_region:
|
|
self.push(self.inventory, region, dest)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'regions', region)
|
|
|
|
# Inventory: Group by availability zone (doesn't apply to replication groups)
|
|
|
|
# Inventory: Group by node type (doesn't apply to replication groups)
|
|
|
|
# Inventory: Group by VPC (information not available in the current
|
|
# AWS API version for replication groups
|
|
|
|
# Inventory: Group by security group (doesn't apply to replication groups)
|
|
# Check this value in cluster level
|
|
|
|
# Inventory: Group by engine (replication groups are always Redis)
|
|
if self.group_by_elasticache_engine:
|
|
self.push(self.inventory, 'elasticache_redis', dest)
|
|
if self.nested_groups:
|
|
self.push_group(self.inventory, 'elasticache_engines', 'redis')
|
|
|
|
# Global Tag: all ElastiCache clusters
|
|
self.push(self.inventory, 'elasticache_replication_groups', replication_group['ReplicationGroupId'])
|
|
|
|
host_info = self.get_host_info_dict_from_describe_dict(replication_group)
|
|
|
|
self.inventory["_meta"]["hostvars"][dest] = host_info
|
|
|
|
def get_route53_records(self):
|
|
''' Get and store the map of resource records to domain names that
|
|
point to them. '''
|
|
|
|
if self.boto_profile:
|
|
r53_conn = route53.Route53Connection(profile_name=self.boto_profile)
|
|
else:
|
|
r53_conn = route53.Route53Connection()
|
|
all_zones = r53_conn.get_zones()
|
|
|
|
route53_zones = [zone for zone in all_zones if zone.name[:-1] not in self.route53_excluded_zones]
|
|
|
|
self.route53_records = {}
|
|
|
|
for zone in route53_zones:
|
|
rrsets = r53_conn.get_all_rrsets(zone.id)
|
|
|
|
for record_set in rrsets:
|
|
record_name = record_set.name
|
|
|
|
if record_name.endswith('.'):
|
|
record_name = record_name[:-1]
|
|
|
|
for resource in record_set.resource_records:
|
|
self.route53_records.setdefault(resource, set())
|
|
self.route53_records[resource].add(record_name)
|
|
|
|
def get_instance_route53_names(self, instance):
|
|
''' Check if an instance is referenced in the records we have from
|
|
Route53. If it is, return the list of domain names pointing to said
|
|
instance. If nothing points to it, return an empty list. '''
|
|
|
|
instance_attributes = ['public_dns_name', 'private_dns_name',
|
|
'ip_address', 'private_ip_address']
|
|
|
|
name_list = set()
|
|
|
|
for attrib in instance_attributes:
|
|
try:
|
|
value = getattr(instance, attrib)
|
|
except AttributeError:
|
|
continue
|
|
|
|
if value in self.route53_records:
|
|
name_list.update(self.route53_records[value])
|
|
|
|
return list(name_list)
|
|
|
|
def get_host_info_dict_from_instance(self, instance):
|
|
instance_vars = {}
|
|
for key in vars(instance):
|
|
value = getattr(instance, key)
|
|
key = self.to_safe('ec2_' + key)
|
|
|
|
# Handle complex types
|
|
# state/previous_state changed to properties in boto in https://github.com/boto/boto/commit/a23c379837f698212252720d2af8dec0325c9518
|
|
if key == 'ec2__state':
|
|
instance_vars['ec2_state'] = instance.state or ''
|
|
instance_vars['ec2_state_code'] = instance.state_code
|
|
elif key == 'ec2__previous_state':
|
|
instance_vars['ec2_previous_state'] = instance.previous_state or ''
|
|
instance_vars['ec2_previous_state_code'] = instance.previous_state_code
|
|
elif isinstance(value, (int, bool)):
|
|
instance_vars[key] = value
|
|
elif isinstance(value, six.string_types):
|
|
instance_vars[key] = value.strip()
|
|
elif value is None:
|
|
instance_vars[key] = ''
|
|
elif key == 'ec2_region':
|
|
instance_vars[key] = value.name
|
|
elif key == 'ec2__placement':
|
|
instance_vars['ec2_placement'] = value.zone
|
|
elif key == 'ec2_tags':
|
|
for k, v in value.items():
|
|
if self.expand_csv_tags and ',' in v:
|
|
v = list(map(lambda x: x.strip(), v.split(',')))
|
|
key = self.to_safe('ec2_tag_' + k)
|
|
instance_vars[key] = v
|
|
elif key == 'ec2_groups':
|
|
group_ids = []
|
|
group_names = []
|
|
for group in value:
|
|
group_ids.append(group.id)
|
|
group_names.append(group.name)
|
|
instance_vars["ec2_security_group_ids"] = ','.join([str(i) for i in group_ids])
|
|
instance_vars["ec2_security_group_names"] = ','.join([str(i) for i in group_names])
|
|
elif key == 'ec2_block_device_mapping':
|
|
instance_vars["ec2_block_devices"] = {}
|
|
for k, v in value.items():
|
|
instance_vars["ec2_block_devices"][os.path.basename(k)] = v.volume_id
|
|
else:
|
|
pass
|
|
# TODO Product codes if someone finds them useful
|
|
# print key
|
|
# print type(value)
|
|
# print value
|
|
|
|
instance_vars[self.to_safe('ec2_account_id')] = self.aws_account_id
|
|
|
|
return instance_vars
|
|
|
|
def get_host_info_dict_from_describe_dict(self, describe_dict):
|
|
''' Parses the dictionary returned by the API call into a flat list
|
|
of parameters. This method should be used only when 'describe' is
|
|
used directly because Boto doesn't provide specific classes. '''
|
|
|
|
# I really don't agree with prefixing everything with 'ec2'
|
|
# because EC2, RDS and ElastiCache are different services.
|
|
# I'm just following the pattern used until now to not break any
|
|
# compatibility.
|
|
|
|
host_info = {}
|
|
for key in describe_dict:
|
|
value = describe_dict[key]
|
|
key = self.to_safe('ec2_' + self.uncammelize(key))
|
|
|
|
# Handle complex types
|
|
|
|
# Target: Memcached Cache Clusters
|
|
if key == 'ec2_configuration_endpoint' and value:
|
|
host_info['ec2_configuration_endpoint_address'] = value['Address']
|
|
host_info['ec2_configuration_endpoint_port'] = value['Port']
|
|
|
|
# Target: Cache Nodes and Redis Cache Clusters (single node)
|
|
if key == 'ec2_endpoint' and value:
|
|
host_info['ec2_endpoint_address'] = value['Address']
|
|
host_info['ec2_endpoint_port'] = value['Port']
|
|
|
|
# Target: Redis Replication Groups
|
|
if key == 'ec2_node_groups' and value:
|
|
host_info['ec2_endpoint_address'] = value[0]['PrimaryEndpoint']['Address']
|
|
host_info['ec2_endpoint_port'] = value[0]['PrimaryEndpoint']['Port']
|
|
replica_count = 0
|
|
for node in value[0]['NodeGroupMembers']:
|
|
if node['CurrentRole'] == 'primary':
|
|
host_info['ec2_primary_cluster_address'] = node['ReadEndpoint']['Address']
|
|
host_info['ec2_primary_cluster_port'] = node['ReadEndpoint']['Port']
|
|
host_info['ec2_primary_cluster_id'] = node['CacheClusterId']
|
|
elif node['CurrentRole'] == 'replica':
|
|
host_info['ec2_replica_cluster_address_' + str(replica_count)] = node['ReadEndpoint']['Address']
|
|
host_info['ec2_replica_cluster_port_' + str(replica_count)] = node['ReadEndpoint']['Port']
|
|
host_info['ec2_replica_cluster_id_' + str(replica_count)] = node['CacheClusterId']
|
|
replica_count += 1
|
|
|
|
# Target: Redis Replication Groups
|
|
if key == 'ec2_member_clusters' and value:
|
|
host_info['ec2_member_clusters'] = ','.join([str(i) for i in value])
|
|
|
|
# Target: All Cache Clusters
|
|
elif key == 'ec2_cache_parameter_group':
|
|
host_info["ec2_cache_node_ids_to_reboot"] = ','.join([str(i) for i in value['CacheNodeIdsToReboot']])
|
|
host_info['ec2_cache_parameter_group_name'] = value['CacheParameterGroupName']
|
|
host_info['ec2_cache_parameter_apply_status'] = value['ParameterApplyStatus']
|
|
|
|
# Target: Almost everything
|
|
elif key == 'ec2_security_groups':
|
|
|
|
# Skip if SecurityGroups is None
|
|
# (it is possible to have the key defined but no value in it).
|
|
if value is not None:
|
|
sg_ids = []
|
|
for sg in value:
|
|
sg_ids.append(sg['SecurityGroupId'])
|
|
host_info["ec2_security_group_ids"] = ','.join([str(i) for i in sg_ids])
|
|
|
|
# Target: Everything
|
|
# Preserve booleans and integers
|
|
elif isinstance(value, (int, bool)):
|
|
host_info[key] = value
|
|
|
|
# Target: Everything
|
|
# Sanitize string values
|
|
elif isinstance(value, six.string_types):
|
|
host_info[key] = value.strip()
|
|
|
|
# Target: Everything
|
|
# Replace None by an empty string
|
|
elif value is None:
|
|
host_info[key] = ''
|
|
|
|
else:
|
|
# Remove non-processed complex types
|
|
pass
|
|
|
|
return host_info
|
|
|
|
def get_host_info(self):
|
|
''' Get variables about a specific host '''
|
|
|
|
if len(self.index) == 0:
|
|
# Need to load index from cache
|
|
self.load_index_from_cache()
|
|
|
|
if self.args.host not in self.index:
|
|
# try updating the cache
|
|
self.do_api_calls_update_cache()
|
|
if self.args.host not in self.index:
|
|
# host might not exist anymore
|
|
return self.json_format_dict({}, True)
|
|
|
|
(region, instance_id) = self.index[self.args.host]
|
|
|
|
instance = self.get_instance(region, instance_id)
|
|
return self.json_format_dict(self.get_host_info_dict_from_instance(instance), True)
|
|
|
|
def push(self, my_dict, key, element):
|
|
''' Push an element onto an array that may not have been defined in
|
|
the dict '''
|
|
group_info = my_dict.setdefault(key, [])
|
|
if isinstance(group_info, dict):
|
|
host_list = group_info.setdefault('hosts', [])
|
|
host_list.append(element)
|
|
else:
|
|
group_info.append(element)
|
|
|
|
def push_group(self, my_dict, key, element):
|
|
''' Push a group as a child of another group. '''
|
|
parent_group = my_dict.setdefault(key, {})
|
|
if not isinstance(parent_group, dict):
|
|
parent_group = my_dict[key] = {'hosts': parent_group}
|
|
child_groups = parent_group.setdefault('children', [])
|
|
if element not in child_groups:
|
|
child_groups.append(element)
|
|
|
|
def get_inventory_from_cache(self):
|
|
''' Reads the inventory from the cache file and returns it as a JSON
|
|
object '''
|
|
|
|
with open(self.cache_path_cache, 'r') as f:
|
|
json_inventory = f.read()
|
|
return json_inventory
|
|
|
|
def load_index_from_cache(self):
|
|
''' Reads the index from the cache file sets self.index '''
|
|
|
|
with open(self.cache_path_index, 'rb') as f:
|
|
self.index = json.load(f)
|
|
|
|
def write_to_cache(self, data, filename):
|
|
''' Writes data in JSON format to a file '''
|
|
|
|
json_data = self.json_format_dict(data, True)
|
|
with open(filename, 'w') as f:
|
|
f.write(json_data)
|
|
|
|
def uncammelize(self, key):
|
|
temp = re.sub('(.)([A-Z][a-z]+)', r'\1_\2', key)
|
|
return re.sub('([a-z0-9])([A-Z])', r'\1_\2', temp).lower()
|
|
|
|
def to_safe(self, word):
|
|
''' Converts 'bad' characters in a string to underscores so they can be used as Ansible groups '''
|
|
regex = r"[^A-Za-z0-9\_"
|
|
if not self.replace_dash_in_groups:
|
|
regex += r"\-"
|
|
return re.sub(regex + "]", "_", word)
|
|
|
|
def json_format_dict(self, data, pretty=False):
|
|
''' Converts a dict to a JSON object and dumps it as a formatted
|
|
string '''
|
|
|
|
if pretty:
|
|
return json.dumps(data, sort_keys=True, indent=2, default=self._json_serial)
|
|
else:
|
|
return json.dumps(data, default=self._json_serial)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
# Run the script
|
|
Ec2Inventory()
|