ansible/cloud/amazon/ec2_key.py

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#!/usr/bin/python
# -*- coding: utf-8 -*-
DOCUMENTATION = '''
---
module: ec2_key
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version_added: "1.5"
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short_description: maintain an ec2 key pair.
description:
- maintains ec2 key pairs. This module has a dependency on python-boto >= 2.5
options:
name:
description:
- Name of the key pair.
required: true
key_material:
description:
- Public key material.
required: false
region:
description:
- the EC2 region to use
required: false
default: null
aliases: []
state:
description:
- create or delete keypair
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required: false
default: 'present'
aliases: []
wait:
description:
- Wait for the specified action to complete before returning.
required: false
default: false
aliases: []
version_added: "1.6"
wait_timeout:
description:
- How long before wait gives up, in seconds
required: false
default: 300
aliases: []
version_added: "1.6"
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extends_documentation_fragment: aws
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author: Vincent Viallet
'''
EXAMPLES = '''
# Note: None of these examples set aws_access_key, aws_secret_key, or region.
# It is assumed that their matching environment variables are set.
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# Creates a new ec2 key pair named `example` if not present, returns generated
# private key
- name: example ec2 key
local_action:
module: ec2_key
name: example
# Creates a new ec2 key pair named `example` if not present using provided key
# material
- name: example2 ec2 key
local_action:
module: ec2_key
name: example2
key_material: 'ssh-rsa AAAAxyz...== me@example.com'
state: present
# Creates a new ec2 key pair named `example` if not present using provided key
# material
- name: example3 ec2 key
local_action:
module: ec2_key
name: example3
key_material: "{{ item }}"
with_file: /path/to/public_key.id_rsa.pub
# Removes ec2 key pair by name
- name: remove example key
local_action:
module: ec2_key
name: example
state: absent
'''
try:
import boto.ec2
except ImportError:
print "failed=True msg='boto required for this module'"
sys.exit(1)
import random
import string
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def main():
argument_spec = ec2_argument_spec()
argument_spec.update(dict(
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name=dict(required=True),
key_material=dict(required=False),
state = dict(default='present', choices=['present', 'absent']),
wait = dict(type='bool', default=False),
wait_timeout = dict(default=300),
)
)
module = AnsibleModule(
argument_spec=argument_spec,
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supports_check_mode=True,
)
name = module.params['name']
state = module.params.get('state')
key_material = module.params.get('key_material')
wait = module.params.get('wait')
wait_timeout = int(module.params.get('wait_timeout'))
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changed = False
ec2 = ec2_connect(module)
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# find the key if present
key = ec2.get_key_pair(name)
# Ensure requested key is absent
if state == 'absent':
if key:
'''found a match, delete it'''
try:
key.delete()
if wait:
start = time.time()
action_complete = False
while (time.time() - start) < wait_timeout:
if not ec2.get_key_pair(name):
action_complete = True
break
time.sleep(1)
if not action_complete:
module.fail_json(msg="timed out while waiting for the key to be removed")
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except Exception, e:
module.fail_json(msg="Unable to delete key pair '%s' - %s" % (key, e))
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else:
key = None
changed = True
else:
'''no match found, no changes required'''
# Ensure requested key is present
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elif state == 'present':
if key:
# existing key found
if key_material:
# EC2's fingerprints are non-trivial to generate, so push this key
# to a temporary name and make ec2 calculate the fingerprint for us.
#
# http://blog.jbrowne.com/?p=23
# https://forums.aws.amazon.com/thread.jspa?messageID=352828
# find an unused name
test = 'empty'
while test:
randomchars = [random.choice(string.ascii_letters + string.digits) for x in range(0,10)]
tmpkeyname = "ansible-" + ''.join(randomchars)
test = ec2.get_key_pair(tmpkeyname)
# create tmp key
tmpkey = ec2.import_key_pair(tmpkeyname, key_material)
# get tmp key fingerprint
tmpfingerprint = tmpkey.fingerprint
# delete tmp key
tmpkey.delete()
if key.fingerprint != tmpfingerprint:
if not module.check_mode:
key.delete()
key = ec2.import_key_pair(name, key_material)
if wait:
start = time.time()
action_complete = False
while (time.time() - start) < wait_timeout:
if ec2.get_key_pair(name):
action_complete = True
break
time.sleep(1)
if not action_complete:
module.fail_json(msg="timed out while waiting for the key to be re-created")
changed = True
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pass
# if the key doesn't exist, create it now
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else:
'''no match found, create it'''
if not module.check_mode:
if key_material:
'''We are providing the key, need to import'''
key = ec2.import_key_pair(name, key_material)
else:
'''
No material provided, let AWS handle the key creation and
retrieve the private key
'''
key = ec2.create_key_pair(name)
if wait:
start = time.time()
action_complete = False
while (time.time() - start) < wait_timeout:
if ec2.get_key_pair(name):
action_complete = True
break
time.sleep(1)
if not action_complete:
module.fail_json(msg="timed out while waiting for the key to be created")
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changed = True
if key:
data = {
'name': key.name,
'fingerprint': key.fingerprint
}
if key.material:
data.update({'private_key': key.material})
module.exit_json(changed=changed, key=data)
else:
module.exit_json(changed=changed, key=None)
# import module snippets
from ansible.module_utils.basic import *
from ansible.module_utils.ec2 import *
main()