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654 lines
22 KiB
Python
654 lines
22 KiB
Python
#!/usr/bin/python
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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DOCUMENTATION = '''
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---
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module: ec2
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short_description: create or terminate an instance in ec2, return instanceid
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description:
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- Creates or terminates ec2 instances. When created optionally waits for it to be 'running'. This module has a dependency on python-boto >= 2.5
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version_added: "0.9"
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options:
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key_name:
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description:
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- key pair to use on the instance
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required: true
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default: null
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aliases: ['keypair']
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id:
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description:
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- identifier for this instance or set of instances, so that the module will be idempotent with respect to EC2 instances. This identifier is valid for at least 24 hours after the termination of the instance, and should not be reused for another call later on. For details, see the description of client token at U(http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/Run_Instance_Idempotency.html).
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required: false
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default: null
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aliases: []
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group:
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description:
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- security group (or list of groups) to use with the instance
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required: false
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default: null
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aliases: [ 'groups' ]
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group_id:
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version_added: "1.1"
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description:
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- security group id (or list of ids) to use with the instance
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required: false
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default: null
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aliases: []
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region:
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version_added: "1.2"
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description:
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- The AWS region to use. Must be specified if ec2_url is not used. If not specified then the value of the EC2_REGION environment variable, if any, is used.
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required: false
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default: null
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aliases: [ 'aws_region', 'ec2_region' ]
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zone:
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version_added: "1.2"
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description:
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- AWS availability zone in which to launch the instance
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required: false
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default: null
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aliases: [ 'aws_zone', 'ec2_zone' ]
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instance_type:
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description:
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- instance type to use for the instance
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required: true
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default: null
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aliases: []
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image:
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description:
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- I(emi) (or I(ami)) to use for the instance
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required: true
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default: null
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aliases: []
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kernel:
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description:
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- kernel I(eki) to use for the instance
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required: false
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default: null
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aliases: []
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ramdisk:
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description:
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- ramdisk I(eri) to use for the instance
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required: false
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default: null
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aliases: []
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wait:
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description:
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- wait for the instance to be in state 'running' before returning
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required: false
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default: "no"
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choices: [ "yes", "no" ]
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aliases: []
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wait_timeout:
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description:
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- how long before wait gives up, in seconds
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default: 300
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aliases: []
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ec2_url:
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description:
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- Url to use to connect to EC2 or your Eucalyptus cloud (by default the module will use EC2 endpoints). Must be specified if region is not used. If not set then the value of the EC2_URL environment variable, if any, is used
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required: false
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default: null
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aliases: []
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aws_secret_key:
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description:
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- AWS secret key. If not set then the value of the AWS_SECRET_KEY environment variable is used.
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required: false
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default: null
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aliases: [ 'ec2_secret_key', 'secret_key' ]
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aws_access_key:
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description:
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- AWS access key. If not set then the value of the AWS_ACCESS_KEY environment variable is used.
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required: false
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default: null
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aliases: [ 'ec2_access_key', 'access_key' ]
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count:
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description:
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- number of instances to launch
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required: False
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default: 1
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aliases: []
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monitoring:
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version_added: "1.1"
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description:
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- enable detailed monitoring (CloudWatch) for instance
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required: false
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default: null
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aliases: []
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user_data:
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version_added: "0.9"
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description:
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- opaque blob of data which is made available to the ec2 instance
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required: false
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default: null
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aliases: []
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instance_tags:
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version_added: "1.0"
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description:
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- a hash/dictionary of tags to add to the new instance; '{"key":"value"}' and '{"key":"value","key":"value"}'
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required: false
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default: null
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aliases: []
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placement_group:
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version_added: "1.3"
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description:
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- placement group for the instance when using EC2 Clustered Compute
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required: false
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default: null
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aliases: []
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vpc_subnet_id:
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version_added: "1.1"
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description:
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- the subnet ID in which to launch the instance (VPC)
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required: false
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default: null
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aliases: []
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private_ip:
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version_added: "1.2"
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description:
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- the private ip address to assign the instance (from the vpc subnet)
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required: false
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defualt: null
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aliases: []
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instance_profile_name:
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version_added: "1.3"
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description:
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- Name of the IAM instance profile to use. Boto library must be 2.5.0+
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required: false
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default: null
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aliases: []
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instance_ids:
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version_added: "1.3"
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description:
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- list of instance ids, currently only used when state='absent'
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required: false
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default: null
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aliases: []
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state:
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version_added: "1.3"
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description:
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- create or terminate instances
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required: false
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default: 'present'
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aliases: []
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requirements: [ "boto" ]
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author: Seth Vidal, Tim Gerla, Lester Wade
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'''
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EXAMPLES = '''
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# Note: None of these examples set aws_access_key, aws_secret_key, or region.
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# It is assumed that their matching environment variables are set.
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# Basic provisioning example
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- local_action:
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module: ec2
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keypair: mykey
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instance_type: c1.medium
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image: emi-40603AD1
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wait: yes
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group: webserver
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count: 3
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# Advanced example with tagging and CloudWatch
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- local_action:
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module: ec2
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keypair: mykey
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group: databases
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instance_type: m1.large
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image: ami-6e649707
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wait: yes
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wait_timeout: 500
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count: 5
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instance_tags: '{"db":"postgres"}'
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monitoring=yes
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# Multiple groups example
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local_action:
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module: ec2
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keypair: mykey
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group: ['databases', 'internal-services', 'sshable', 'and-so-forth']
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instance_type: m1.large
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image: ami-6e649707
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wait: yes
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wait_timeout: 500
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count: 5
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instance_tags: '{"db":"postgres"}'
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monitoring=yes
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# VPC example
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- local_action:
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module: ec2
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keypair: mykey
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group_id: sg-1dc53f72
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instance_type: m1.small
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image: ami-6e649707
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wait: yes
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vpc_subnet_id: subnet-29e63245
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# Launch instances, runs some tasks
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# and then terminate them
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- name: Create a sandbox instance
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hosts: localhost
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gather_facts: False
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vars:
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keypair: my_keypair
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instance_type: m1.small
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security_group: my_securitygroup
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image: my_ami_id
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region: us-east-1
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tasks:
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- name: Launch instance
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local_action: ec2 keypair={{ keypair }} group={{ security_group }} instance_type={{ instance_type }} image={{ image }} wait=true region={{ region }}
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register: ec2
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- name: Add new instance to host group
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local_action: add_host hostname={{ item.public_ip }} groupname=launched
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with_items: ec2.instances
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- name: Wait for SSH to come up
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local_action: wait_for host={{ item.public_dns_name }} port=22 delay=60 timeout=320 state=started
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with_items: ec2.instances
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- name: Configure instance(s)
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hosts: launched
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sudo: True
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gather_facts: True
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roles:
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- my_awesome_role
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- my_awesome_test
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- name: Terminate instances
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hosts: localhost
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connection: local
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tasks:
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- name: Terminate instances that were previously launched
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local_action:
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module: ec2
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state: 'absent'
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instance_ids: {{ec2.instance_ids}}
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'''
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import sys
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import time
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AWS_REGIONS = ['ap-northeast-1',
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'ap-southeast-1',
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'ap-southeast-2',
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'eu-west-1',
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'sa-east-1',
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'us-east-1',
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'us-west-1',
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'us-west-2']
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try:
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import boto.ec2
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from boto.exception import EC2ResponseError
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except ImportError:
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print "failed=True msg='boto required for this module'"
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sys.exit(1)
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def get_instance_info(inst):
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"""
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Retrieves instance information from an instance
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ID and returns it as a dictionary
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"""
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instance_info = {'id': inst.id,
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'ami_launch_index': inst.ami_launch_index,
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'private_ip': inst.private_ip_address,
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'private_dns_name': inst.private_dns_name,
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'public_ip': inst.ip_address,
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'dns_name': inst.dns_name,
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'public_dns_name': inst.public_dns_name,
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'state_code': inst.state_code,
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'architecture': inst.architecture,
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'image_id': inst.image_id,
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'key_name': inst.key_name,
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'placement': inst.placement,
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'kernel': inst.kernel,
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'ramdisk': inst.ramdisk,
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'launch_time': inst.launch_time,
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'instance_type': inst.instance_type,
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'root_device_type': inst.root_device_type,
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'root_device_name': inst.root_device_name,
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'state': inst.state,
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'hypervisor': inst.hypervisor}
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try:
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instance_info['virtualization_type'] = getattr(inst,'virtualization_type')
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except AttributeError:
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instance_info['virtualization_type'] = None
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return instance_info
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def boto_supports_profile_name_arg(ec2):
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"""
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Check if Boto library has instance_profile_name argument. instance_profile_name has been added in Boto 2.5.0
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ec2: authenticated ec2 connection object
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Returns:
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True if Boto library accept instance_profile_name argument, else false
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"""
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run_instances_method = getattr(ec2, 'run_instances')
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return 'instance_profile_name' in run_instances_method.func_code.co_varnames
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def create_instances(module, ec2):
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"""
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Creates new instances
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module : AnsibleModule object
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ec2: authenticated ec2 connection object
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Returns:
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A list of dictionaries with instance information
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about the instances that were launched
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"""
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key_name = module.params.get('key_name')
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id = module.params.get('id')
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group_name = module.params.get('group')
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group_id = module.params.get('group_id')
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zone = module.params.get('zone')
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instance_type = module.params.get('instance_type')
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image = module.params.get('image')
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count = module.params.get('count')
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monitoring = module.params.get('monitoring')
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kernel = module.params.get('kernel')
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ramdisk = module.params.get('ramdisk')
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wait = module.params.get('wait')
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wait_timeout = int(module.params.get('wait_timeout'))
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placement_group = module.params.get('placement_group')
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user_data = module.params.get('user_data')
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instance_tags = module.params.get('instance_tags')
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vpc_subnet_id = module.params.get('vpc_subnet_id')
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private_ip = module.params.get('private_ip')
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instance_profile_name = module.params.get('instance_profile_name')
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# group_id and group_name are exclusive of each other
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if group_id and group_name:
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module.fail_json(msg = str("Use only one type of parameter (group_name) or (group_id)"))
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sys.exit(1)
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try:
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# Here we try to lookup the group id from the security group name - if group is set.
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if group_name:
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grp_details = ec2.get_all_security_groups()
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if type(group_name) == list:
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group_id = [ str(grp.id) for grp in grp_details if str(grp.name) in group_name ]
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elif type(group_name) == str:
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for grp in grp_details:
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if str(group_name) in str(grp):
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group_id = [str(grp.id)]
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group_name = [group_name]
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# Now we try to lookup the group id testing if group exists.
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elif group_id:
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#wrap the group_id in a list if it's not one already
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if type(group_id) == str:
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group_id = [group_id]
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grp_details = ec2.get_all_security_groups(group_ids=group_id)
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grp_item = grp_details[0]
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group_name = [grp_item.name]
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except boto.exception.NoAuthHandlerFound, e:
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module.fail_json(msg = str(e))
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# Lookup any instances that much our run id.
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running_instances = []
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count_remaining = int(count)
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if id != None:
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filter_dict = {'client-token':id, 'instance-state-name' : 'running'}
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previous_reservations = ec2.get_all_instances(None, filter_dict)
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for res in previous_reservations:
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for prev_instance in res.instances:
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running_instances.append(prev_instance)
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count_remaining = count_remaining - len(running_instances)
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# Both min_count and max_count equal count parameter. This means the launch request is explicit (we want count, or fail) in how many instances we want.
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if count_remaining == 0:
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changed = False
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else:
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changed = True
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try:
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params = {'image_id': image,
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'key_name': key_name,
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'client_token': id,
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'min_count': count_remaining,
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'max_count': count_remaining,
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'monitoring_enabled': monitoring,
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'placement': zone,
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'placement_group': placement_group,
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'instance_type': instance_type,
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'kernel_id': kernel,
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'ramdisk_id': ramdisk,
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'subnet_id': vpc_subnet_id,
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'private_ip_address': private_ip,
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'user_data': user_data}
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if boto_supports_profile_name_arg(ec2):
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params['instance_profile_name'] = instance_profile_name
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else:
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if instance_profile_name is not None:
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module.fail_json(
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msg="instance_profile_name parameter requires Boto version 2.5.0 or higher")
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if vpc_subnet_id:
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params['security_group_ids'] = group_id
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else:
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params['security_groups'] = group_name
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res = ec2.run_instances(**params)
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except boto.exception.BotoServerError, e:
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module.fail_json(msg = "%s: %s" % (e.error_code, e.error_message))
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instids = [ i.id for i in res.instances ]
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while True:
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try:
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res.connection.get_all_instances(instids)
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break
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except boto.exception.EC2ResponseError as e:
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if "<Code>InvalidInstanceID.NotFound</Code>" in str(e):
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# there's a race between start and get an instance
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continue
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else:
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module.fail_json(msg = str(e))
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if instance_tags:
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try:
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ec2.create_tags(instids, instance_tags)
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except boto.exception.EC2ResponseError as e:
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module.fail_json(msg = "%s: %s" % (e.error_code, e.error_message))
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# wait here until the instances are up
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this_res = []
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num_running = 0
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wait_timeout = time.time() + wait_timeout
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while wait_timeout > time.time() and num_running < len(instids):
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res_list = res.connection.get_all_instances(instids)
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if len(res_list) > 0:
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this_res = res_list[0]
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num_running = len([ i for i in this_res.instances if i.state=='running' ])
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else:
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# got a bad response of some sort, possibly due to
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# stale/cached data. Wait a second and then try again
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time.sleep(1)
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continue
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if wait and num_running < len(instids):
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time.sleep(5)
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else:
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break
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if wait and wait_timeout <= time.time():
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# waiting took too long
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module.fail_json(msg = "wait for instances running timeout on %s" % time.asctime())
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for inst in this_res.instances:
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running_instances.append(inst)
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instance_dict_array = []
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created_instance_ids = []
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for inst in running_instances:
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d = get_instance_info(inst)
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created_instance_ids.append(inst.id)
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instance_dict_array.append(d)
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return (instance_dict_array, created_instance_ids, changed)
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def terminate_instances(module, ec2, instance_ids):
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"""
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Terminates a list of instances
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module: Ansible module object
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ec2: authenticated ec2 connection object
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termination_list: a list of instances to terminate in the form of
|
|
[ {id: <inst-id>}, ..]
|
|
|
|
Returns a dictionary of instance information
|
|
about the instances terminated.
|
|
|
|
If the instance to be terminated is running
|
|
"changed" will be set to False.
|
|
|
|
"""
|
|
|
|
# Whether to wait for termination to complete before returning
|
|
wait = module.params.get('wait')
|
|
wait_timeout = int(module.params.get('wait_timeout'))
|
|
|
|
changed = False
|
|
instance_dict_array = []
|
|
|
|
if not isinstance(instance_ids, list) or len(instance_ids) < 1:
|
|
module.fail_json(msg='instance_ids should be a list of instances, aborting')
|
|
|
|
terminated_instance_ids = []
|
|
for res in ec2.get_all_instances(instance_ids):
|
|
for inst in res.instances:
|
|
if inst.state == 'running':
|
|
terminated_instance_ids.append(inst.id)
|
|
instance_dict_array.append(get_instance_info(inst))
|
|
try:
|
|
ec2.terminate_instances([inst.id])
|
|
except EC2ResponseError as e:
|
|
module.fail_json(msg='Unable to terminate instance {0}, error: {1}'.format(inst.id, e))
|
|
changed = True
|
|
|
|
# wait here until the instances are 'terminated'
|
|
if wait:
|
|
num_terminated = 0
|
|
wait_timeout = time.time() + wait_timeout
|
|
while wait_timeout > time.time() and num_terminated < len(terminated_instance_ids):
|
|
response = ec2.get_all_instances( \
|
|
instance_ids=terminated_instance_ids, \
|
|
filters={'instance-state-name':'terminated'})
|
|
try:
|
|
num_terminated = len(response.pop().instances)
|
|
except Exception, e:
|
|
# got a bad response of some sort, possibly due to
|
|
# stale/cached data. Wait a second and then try again
|
|
time.sleep(1)
|
|
continue
|
|
|
|
if num_terminated < len(terminated_instance_ids):
|
|
time.sleep(5)
|
|
|
|
# waiting took too long
|
|
if wait_timeout < time.time() and num_terminated < len(terminated_instance_ids):
|
|
module.fail_json(msg = "wait for instance termination timeout on %s" % time.asctime())
|
|
|
|
return (changed, instance_dict_array, terminated_instance_ids)
|
|
|
|
|
|
def main():
|
|
module = AnsibleModule(
|
|
argument_spec = dict(
|
|
key_name = dict(aliases = ['keypair']),
|
|
id = dict(),
|
|
group = dict(type='list'),
|
|
group_id = dict(type='list'),
|
|
region = dict(aliases=['aws_region', 'ec2_region'], choices=AWS_REGIONS),
|
|
zone = dict(aliases=['aws_zone', 'ec2_zone']),
|
|
instance_type = dict(aliases=['type']),
|
|
image = dict(),
|
|
kernel = dict(),
|
|
count = dict(default='1'),
|
|
monitoring = dict(type='bool', default=False),
|
|
ramdisk = dict(),
|
|
wait = dict(type='bool', default=False),
|
|
wait_timeout = dict(default=300),
|
|
ec2_url = dict(),
|
|
ec2_secret_key = dict(aliases=['aws_secret_key', 'secret_key'], no_log=True),
|
|
ec2_access_key = dict(aliases=['aws_access_key', 'access_key']),
|
|
placement_group = dict(),
|
|
user_data = dict(),
|
|
instance_tags = dict(type='dict'),
|
|
vpc_subnet_id = dict(),
|
|
private_ip = dict(),
|
|
instance_profile_name = dict(),
|
|
instance_ids = dict(type='list'),
|
|
state = dict(default='present'),
|
|
)
|
|
)
|
|
|
|
# def get_ec2_creds(module):
|
|
# return ec2_url, ec2_access_key, ec2_secret_key, region
|
|
ec2_url, aws_access_key, aws_secret_key, region = get_ec2_creds(module)
|
|
|
|
# If we have a region specified, connect to its endpoint.
|
|
if region:
|
|
try:
|
|
ec2 = boto.ec2.connect_to_region(region, aws_access_key_id=aws_access_key, aws_secret_access_key=aws_secret_key)
|
|
except boto.exception.NoAuthHandlerFound, e:
|
|
module.fail_json(msg = str(e))
|
|
# If we specified an ec2_url then try connecting to it
|
|
elif ec2_url:
|
|
try:
|
|
ec2 = boto.connect_ec2_endpoint(ec2_url, aws_access_key, aws_secret_key)
|
|
except boto.exception.NoAuthHandlerFound, e:
|
|
module.fail_json(msg = str(e))
|
|
else:
|
|
module.fail_json(msg="Either region or ec2_url must be specified")
|
|
|
|
if module.params.get('state') == 'absent':
|
|
instance_ids = module.params.get('instance_ids')
|
|
if not isinstance(instance_ids, list):
|
|
module.fail_json(msg='termination_list needs to be a list of instances to terminate')
|
|
|
|
(changed, instance_dict_array, new_instance_ids) = terminate_instances(module, ec2, instance_ids)
|
|
|
|
elif module.params.get('state') == 'present':
|
|
# Changed is always set to true when provisioning new instances
|
|
if not module.params.get('key_name'):
|
|
module.fail_json(msg='key_name parameter is required for new instance')
|
|
if not module.params.get('image'):
|
|
module.fail_json(msg='image parameter is required for new instance')
|
|
(instance_dict_array, new_instance_ids, changed) = create_instances(module, ec2)
|
|
|
|
module.exit_json(changed=changed, instance_ids=new_instance_ids, instances=instance_dict_array)
|
|
|
|
# import module snippets
|
|
from ansible.module_utils.basic import *
|
|
from ansible.module_utils.ec2 import *
|
|
|
|
main()
|