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library/ec2:

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- use boto instead of euca2ools
- improve error handling/propagation for run failures
- rename keypair to key_name (and preserve alias for old playbooks)
- should be 100% backward compatible with the euca2ools version
This commit is contained in:
Tim Gerla 2013-01-22 12:09:31 -08:00
parent 94a1c221bc
commit 456e6f5a55
1 changed files with 33 additions and 35 deletions
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68
library/ec2
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@ -22,12 +22,12 @@ description:
- creates ec2 instances and optionally waits for it to be 'running'. This module has a dependency on the external I(euca2ools) package.
version_added: "0.9"
options:
keypair:
key_name:
description:
- key pair to use on the instance
required: true
default: null
aliases: []
aliases: ['keypair']
group:
description:
- security group to use on the instance
@ -92,25 +92,18 @@ options:
examples:
- code: "local_action: ec2 keypair=admin instance_type=m1.large image=emi-40603AD1 wait=true group=webserver"
description: "Examples from Ansible Playbooks"
requirements: [ "euca2ools" ]
requirements: [ "boto" ]
author: Seth Vidal
'''
import euca2ools.commands.euca.runinstances
import boto
import time
def _run(cmd):
# returns (rc, stdout, stderr) from shell command
process = subprocess.Popen(cmd, stdout=subprocess.PIPE,
stderr=subprocess.PIPE, shell=True)
stdout, stderr = process.communicate()
return (process.returncode, stdout, stderr)
from urlparse import urlparse
def main():
module = AnsibleModule(
argument_spec = dict(
keypair = dict(required=True),
key_name = dict(required=True, aliases = ['keypair']),
group = dict(default='default'),
instance_type = dict(aliases=['type']),
image = dict(required=True),
@ -125,7 +118,7 @@ def main():
)
)
keypair = module.params.get('keypair')
key_name = module.params.get('key_name')
group = module.params.get('group')
instance_type = module.params.get('instance_type')
image = module.params.get('image')
@ -138,29 +131,34 @@ def main():
ec2_access_key = module.params.get('ec2_access_key')
user_data = module.params.get('user_data')
if ec2_url:
os.environ['EC2_URL'] = ec2_url
if ec2_secret_key:
os.environ['EC2_SECRET_KEY'] = ec2_secret_key
if ec2_access_key:
os.environ['EC2_ACCESS_KEY'] = ec2_access_key
# allow eucarc environment variables to be used if ansible vars aren't set
if not ec2_url and 'EC2_URL' in os.environ:
ec2_url = os.environ['EC2_URL']
if not ec2_secret_key and 'EC2_SECRET_KEY' in os.environ:
ec2_secret_key = os.environ['EC2_SECRET_KEY']
if not ec2_access_key and 'EC2_ACCESS_KEY' in os.environ:
ec2_access_key = os.environ['EC2_ACCESS_KEY']
if ec2_url: # if we have an URL set, assume Eucalyptus
url = urlparse(ec2_url)
ec2 = boto.connect_euca(host = url.netloc.split(":")[0],
aws_access_key_id = ec2_access_key,
aws_secret_access_key = ec2_secret_key,
port = url.port,
path = url.path)
else: # otherwise it's Amazon.
ec2 = boto.connect_ec2()
# yes I recognize how hacky this is - but it is easier than rewriting
# all the try/except's myself.
sys.argv.append(image)
eri = euca2ools.commands.euca.runinstances.RunInstances()
conn = eri.make_connection()
res = eri.make_request_cli(conn, 'run_instances',
image_id=image,
min_count=1,
max_count=1,
key_name=keypair,
security_groups=[group],
instance_type=instance_type,
kernel_id=kernel,
ramdisk_id=ramdisk,
user_data=user_data)
try:
res = ec2.run_instances(image, key_name = key_name,
min_count = 1, max_count = 1,
security_groups = [group],
instance_type = instance_type,
kernel_id = kernel,
ramdisk_id = ramdisk,
user_data = user_data)
except boto.exception.EC2ResponseError as e:
module.fail_json(msg = "%s: %s" % (e.error_code, e.error_message))
instids = [ i.id for i in res.instances ]