cmueller/ansible
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity
ansible/library/cloud/rax
Matt Martz 5eace5f718 Return untouhced servers with exact_count
2014-04-04 12:15:35 -05:00

725 lines
25 KiB
Python
Raw Blame History

#!/usr/bin/python
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
# This is a DOCUMENTATION stub specific to this module, it extends
# a documentation fragment located in ansible.utils.module_docs_fragments
DOCUMENTATION = '''
---
module: rax
short_description: create / delete an instance in Rackspace Public Cloud
description:
- creates / deletes a Rackspace Public Cloud instance and optionally
waits for it to be 'running'.
version_added: "1.2"
options:
auto_increment:
description:
- Whether or not to increment a single number with the name of the
created servers. Only applicable when used with the I(group) attribute
or meta key.
default: yes
version_added: 1.5
count:
description:
- number of instances to launch
default: 1
version_added: 1.4
count_offset:
description:
- number count to start at
default: 1
version_added: 1.4
disk_config:
description:
- Disk partitioning strategy
choices:
- auto
- manual
version_added: '1.4'
default: auto
exact_count:
description:
- Explicitly ensure an exact count of instances, used with
state=active/present
default: no
version_added: 1.4
extra_client_args:
description:
- A hash of key/value pairs to be used when creating the cloudservers
client. This is considered an advanced option, use it wisely and
with caution.
version_added: 1.6
extra_create_args:
description:
- A hash of key/value pairs to be used when creating a new server.
This is considered an advanced option, use it wisely and with caution.
version_added: 1.6
files:
description:
- Files to insert into the instance. remotefilename:localcontent
default: null
flavor:
description:
- flavor to use for the instance
default: null
group:
description:
- host group to assign to server, is also used for idempotent operations
to ensure a specific number of instances
version_added: 1.4
image:
description:
- image to use for the instance. Can be an C(id), C(human_id) or C(name)
default: null
instance_ids:
description:
- list of instance ids, currently only used when state='absent' to
remove instances
version_added: 1.4
key_name:
description:
- key pair to use on the instance
default: null
aliases:
- keypair
meta:
description:
- A hash of metadata to associate with the instance
default: null
name:
description:
- Name to give the instance
default: null
networks:
description:
- The network to attach to the instances. If specified, you must include
ALL networks including the public and private interfaces. Can be C(id)
or C(label).
default:
- public
- private
version_added: 1.4
state:
description:
- Indicate desired state of the resource
choices:
- present
- absent
default: present
wait:
description:
- wait for the instance to be in state 'running' before returning
default: "no"
choices:
- "yes"
- "no"
wait_timeout:
description:
- how long before wait gives up, in seconds
default: 300
author: Jesse Keating, Matt Martz
extends_documentation_fragment: rackspace.openstack
'''
EXAMPLES = '''
- name: Build a Cloud Server
gather_facts: False
tasks:
- name: Server build request
local_action:
module: rax
credentials: ~/.raxpub
name: rax-test1
flavor: 5
image: b11d9567-e412-4255-96b9-bd63ab23bcfe
files:
/root/.ssh/authorized_keys: /home/localuser/.ssh/id_rsa.pub
/root/test.txt: /home/localuser/test.txt
wait: yes
state: present
networks:
- private
- public
register: rax
- name: Build an exact count of cloud servers with incremented names
hosts: local
gather_facts: False
tasks:
- name: Server build requests
local_action:
module: rax
credentials: ~/.raxpub
name: test%03d.example.org
flavor: performance1-1
image: ubuntu-1204-lts-precise-pangolin
state: present
count: 10
count_offset: 10
exact_count: yes
group: test
wait: yes
register: rax
'''
import os
import re
import time
from uuid import UUID
from types import NoneType
try:
import pyrax
HAS_PYRAX = True
except ImportError:
HAS_PYRAX = False
ACTIVE_STATUSES = ('ACTIVE', 'BUILD', 'HARD_REBOOT', 'MIGRATING', 'PASSWORD',
'REBOOT', 'REBUILD', 'RESCUE', 'RESIZE', 'REVERT_RESIZE')
FINAL_STATUSES = ('ACTIVE', 'ERROR')
NON_CALLABLES = (basestring, bool, dict, int, list, NoneType)
PUBLIC_NET_ID = "00000000-0000-0000-0000-000000000000"
SERVICE_NET_ID = "11111111-1111-1111-1111-111111111111"
def rax_slugify(value):
return 'rax_%s' % (re.sub('[^\w-]', '_', value).lower().lstrip('_'))
def server_to_dict(obj):
instance = {}
for key in dir(obj):
value = getattr(obj, key)
if (isinstance(value, NON_CALLABLES) and not key.startswith('_')):
key = rax_slugify(key)
instance[key] = value
for attr in ['id', 'accessIPv4', 'name', 'status']:
instance[attr] = instance.get(rax_slugify(attr))
return instance
def create(module, names, flavor, image, meta, key_name, files,
wait, wait_timeout, disk_config, group, nics,
extra_create_args, existing=[]):
cs = pyrax.cloudservers
changed = False
# Handle the file contents
for rpath in files.keys():
lpath = os.path.expanduser(files[rpath])
try:
fileobj = open(lpath, 'r')
files[rpath] = fileobj.read()
except Exception, e:
module.fail_json(msg='Failed to load %s' % lpath)
try:
servers = []
for name in names:
servers.append(cs.servers.create(name=name, image=image,
flavor=flavor, meta=meta,
key_name=key_name,
files=files, nics=nics,
disk_config=disk_config,
**extra_create_args))
except Exception, e:
module.fail_json(msg='%s' % e.message)
else:
changed = True
if wait:
end_time = time.time() + wait_timeout
infinite = wait_timeout == 0
while infinite or time.time() < end_time:
for server in servers:
try:
server.get()
except:
server.status == 'ERROR'
if not filter(lambda s: s.status not in FINAL_STATUSES,
servers):
break
time.sleep(5)
success = []
error = []
timeout = []
for server in servers:
try:
server.get()
except:
server.status == 'ERROR'
instance = server_to_dict(server)
if server.status == 'ACTIVE' or not wait:
success.append(instance)
elif server.status == 'ERROR':
error.append(instance)
elif wait:
timeout.append(instance)
untouched = [server_to_dict(s) for s in existing]
instances = success + untouched
results = {
'changed': changed,
'action': 'create',
'instances': instances,
'success': success,
'error': error,
'timeout': timeout,
'instance_ids': {
'instances': [i['id'] for i in instances],
'success': [i['id'] for i in success],
'error': [i['id'] for i in error],
'timeout': [i['id'] for i in timeout]
}
}
if timeout:
results['msg'] = 'Timeout waiting for all servers to build'
elif error:
results['msg'] = 'Failed to build all servers'
if 'msg' in results:
module.fail_json(**results)
else:
module.exit_json(**results)
def delete(module, instance_ids, wait, wait_timeout, kept=[]):
cs = pyrax.cloudservers
changed = False
instances = {}
servers = []
for instance_id in instance_ids:
servers.append(cs.servers.get(instance_id))
for server in servers:
try:
server.delete()
except Exception, e:
module.fail_json(msg=e.message)
else:
changed = True
instance = server_to_dict(server)
instances[instance['id']] = instance
# If requested, wait for server deletion
if wait:
end_time = time.time() + wait_timeout
infinite = wait_timeout == 0
while infinite or time.time() < end_time:
for server in servers:
instance_id = server.id
try:
server.get()
except:
instances[instance_id]['status'] = 'DELETED'
instances[instance_id]['rax_status'] = 'DELETED'
if not filter(lambda s: s['status'] not in ('', 'DELETED',
'ERROR'),
instances.values()):
break
time.sleep(5)
timeout = filter(lambda s: s['status'] not in ('', 'DELETED', 'ERROR'),
instances.values())
error = filter(lambda s: s['status'] in ('ERROR'),
instances.values())
success = filter(lambda s: s['status'] in ('', 'DELETED'),
instances.values())
instances = [server_to_dict(s) for s in kept]
results = {
'changed': changed,
'action': 'delete',
'instances': instances,
'success': success,
'error': error,
'timeout': timeout,
'instance_ids': {
'instances': [i['id'] for i in instances],
'success': [i['id'] for i in success],
'error': [i['id'] for i in error],
'timeout': [i['id'] for i in timeout]
}
}
if timeout:
results['msg'] = 'Timeout waiting for all servers to delete'
elif error:
results['msg'] = 'Failed to delete all servers'
if 'msg' in results:
module.fail_json(**results)
else:
module.exit_json(**results)
def cloudservers(module, state, name, flavor, image, meta, key_name, files,
wait, wait_timeout, disk_config, count, group,
instance_ids, exact_count, networks, count_offset,
auto_increment, extra_create_args):
cs = pyrax.cloudservers
cnw = pyrax.cloud_networks
if not cnw:
module.fail_json(msg='Failed to instantiate client. This '
'typically indicates an invalid region or an '
'incorrectly capitalized region name.')
servers = []
for key, value in meta.items():
meta[key] = repr(value)
# Add the group meta key
if group and 'group' not in meta:
meta['group'] = group
elif 'group' in meta and group is None:
group = meta['group']
# When using state=absent with group, the absent block won't match the
# names properly. Use the exact_count functionality to decrease the count
# to the desired level
was_absent = False
if group is not None and state == 'absent':
exact_count = True
state = 'present'
was_absent = True
# Check if the provided image is a UUID and if not, search for an
# appropriate image using human_id and name
if image:
try:
UUID(image)
except ValueError:
try:
image = cs.images.find(human_id=image)
except(cs.exceptions.NotFound,
cs.exceptions.NoUniqueMatch):
try:
image = cs.images.find(name=image)
except (cs.exceptions.NotFound,
cs.exceptions.NoUniqueMatch):
module.fail_json(msg='No matching image found (%s)' %
image)
image = pyrax.utils.get_id(image)
# Check if the provided network is a UUID and if not, search for an
# appropriate network using label
nics = []
if networks:
for network in networks:
try:
UUID(network)
except ValueError:
if network.lower() == 'public':
nics.extend(cnw.get_server_networks(PUBLIC_NET_ID))
elif network.lower() == 'private':
nics.extend(cnw.get_server_networks(SERVICE_NET_ID))
else:
try:
network_obj = cnw.find_network_by_label(network)
except (pyrax.exceptions.NetworkNotFound,
pyrax.exceptions.NetworkLabelNotUnique):
module.fail_json(msg='No matching network found (%s)' %
network)
else:
nics.extend(cnw.get_server_networks(network_obj))
else:
nics.extend(cnw.get_server_networks(network))
# act on the state
if state == 'present':
for arg, value in dict(name=name, flavor=flavor,
image=image).iteritems():
if not value:
module.fail_json(msg='%s is required for the "rax" module' %
arg)
# Idempotent ensurance of a specific count of servers
if exact_count is not False:
# See if we can find servers that match our options
if group is None:
module.fail_json(msg='"group" must be provided when using '
'"exact_count"')
else:
if auto_increment:
numbers = set()
try:
name % 0
except TypeError, e:
if e.message.startswith('not all'):
name = '%s%%d' % name
else:
module.fail_json(msg=e.message)
pattern = re.sub(r'%\d*[sd]', r'(\d+)', name)
for server in cs.servers.list():
if server.metadata.get('group') == group:
servers.append(server)
match = re.search(pattern, server.name)
if match:
number = int(match.group(1))
numbers.add(number)
number_range = xrange(count_offset, count_offset + count)
available_numbers = list(set(number_range)
.difference(numbers))
else:
for server in cs.servers.list():
if server.metadata.get('group') == group:
servers.append(server)
# If state was absent but the count was changed,
# assume we only wanted to remove that number of instances
if was_absent:
diff = len(servers) - count
if diff < 0:
count = 0
else:
count = diff
if len(servers) > count:
state = 'absent'
kept = servers[:count]
del servers[:count]
instance_ids = []
for server in servers:
instance_ids.append(server.id)
delete(module, instance_ids, wait, wait_timeout,
kept=kept)
elif len(servers) < count:
if auto_increment:
names = []
name_slice = count - len(servers)
numbers_to_use = available_numbers[:name_slice]
for number in numbers_to_use:
names.append(name % number)
else:
names = [name] * (count - len(servers))
else:
instances = []
instance_ids = []
for server in servers:
instances.append(server_to_dict(server))
instance_ids.append(server.id)
module.exit_json(changed=False, action=None,
instances=instances,
success=[], error=[], timeout=[],
instance_ids={'instances': instance_ids,
'success': [], 'error': [],
'timeout': []})
else:
if group is not None:
if auto_increment:
numbers = set()
try:
name % 0
except TypeError, e:
if e.message.startswith('not all'):
name = '%s%%d' % name
else:
module.fail_json(msg=e.message)
pattern = re.sub(r'%\d*[sd]', r'(\d+)', name)
for server in cs.servers.list():
if server.metadata.get('group') == group:
servers.append(server)
match = re.search(pattern, server.name)
if match:
number = int(match.group(1))
numbers.add(number)
number_range = xrange(count_offset,
count_offset + count + len(numbers))
available_numbers = list(set(number_range)
.difference(numbers))
names = []
numbers_to_use = available_numbers[:count]
for number in numbers_to_use:
names.append(name % number)
else:
names = [name] * count
else:
search_opts = {
'name': '^%s$' % name,
'image': image,
'flavor': flavor
}
servers = []
for server in cs.servers.list(search_opts=search_opts):
if server.metadata != meta:
continue
servers.append(server)
if len(servers) >= count:
instances = []
for server in servers:
instances.append(server_to_dict(server))
instance_ids = [i['id'] for i in instances]
module.exit_json(changed=False, action=None,
instances=instances, success=[], error=[],
timeout=[],
instance_ids={'instances': instance_ids,
'success': [], 'error': [],
'timeout': []})
names = [name] * (count - len(servers))
create(module, names, flavor, image, meta, key_name, files,
wait, wait_timeout, disk_config, group, nics, extra_create_args,
existing=servers)
elif state == 'absent':
if instance_ids is None:
for arg, value in dict(name=name, flavor=flavor,
image=image).iteritems():
if not value:
module.fail_json(msg='%s is required for the "rax" '
'module' % arg)
search_opts = {
'name': '^%s$' % name,
'image': image,
'flavor': flavor
}
for server in cs.servers.list(search_opts=search_opts):
if meta != server.metadata:
continue
servers.append(server)
instance_ids = []
for server in servers:
if len(instance_ids) < count:
instance_ids.append(server.id)
else:
break
if not instance_ids:
module.exit_json(changed=False, action=None, instances=[],
success=[], error=[], timeout=[],
instance_ids={'instances': [],
'success': [], 'error': [],
'timeout': []})
delete(module, instance_ids, wait, wait_timeout)
def main():
argument_spec = rax_argument_spec()
argument_spec.update(
dict(
auto_increment=dict(default=True, type='bool'),
count=dict(default=1, type='int'),
count_offset=dict(default=1, type='int'),
disk_config=dict(choices=['auto', 'manual']),
exact_count=dict(default=False, type='bool'),
extra_client_args=dict(type='dict', default={}),
extra_create_args=dict(type='dict', default={}),
files=dict(type='dict', default={}),
flavor=dict(),
group=dict(),
image=dict(),
instance_ids=dict(type='list'),
key_name=dict(aliases=['keypair']),
meta=dict(type='dict', default={}),
name=dict(),
networks=dict(type='list', default=['public', 'private']),
service=dict(),
state=dict(default='present', choices=['present', 'absent']),
wait=dict(default=False, type='bool'),
wait_timeout=dict(default=300),
)
)
module = AnsibleModule(
argument_spec=argument_spec,
required_together=rax_required_together(),
)
if not HAS_PYRAX:
module.fail_json(msg='pyrax is required for this module')
service = module.params.get('service')
if service is not None:
module.fail_json(msg='The "service" attribute has been deprecated, '
'please remove "service: cloudservers" from your '
'playbook pertaining to the "rax" module')
auto_increment = module.params.get('auto_increment')
count = module.params.get('count')
count_offset = module.params.get('count_offset')
disk_config = module.params.get('disk_config')
if disk_config:
disk_config = disk_config.upper()
exact_count = module.params.get('exact_count', False)
extra_client_args = module.params.get('extra_client_args')
extra_create_args = module.params.get('extra_create_args')
files = module.params.get('files')
flavor = module.params.get('flavor')
group = module.params.get('group')
image = module.params.get('image')
instance_ids = module.params.get('instance_ids')
key_name = module.params.get('key_name')
meta = module.params.get('meta')
name = module.params.get('name')
networks = module.params.get('networks')
state = module.params.get('state')
wait = module.params.get('wait')
wait_timeout = int(module.params.get('wait_timeout'))
setup_rax_module(module, pyrax)
if extra_client_args:
pyrax.cloudservers = pyrax.connect_to_cloudservers(
region=pyrax.cloudservers.client.region_name,
**extra_client_args)
client = pyrax.cloudservers.client
if 'bypass_url' in extra_client_args:
client.management_url = extra_client_args['bypass_url']
if pyrax.cloudservers is None:
module.fail_json(msg='Failed to instantiate client. This '
'typically indicates an invalid region or an '
'incorrectly capitalized region name.')
cloudservers(module, state, name, flavor, image, meta, key_name, files,
wait, wait_timeout, disk_config, count, group,
instance_ids, exact_count, networks, count_offset,
auto_increment, extra_create_args)
# import module snippets
from ansible.module_utils.basic import *
from ansible.module_utils.rax import *
### invoke the module
main()
Reference in a new issue View git blame Copy permalink