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community.general/library/cloud/linode
Michael DeHaan 0e51a1c0ea Styling: semicolon
2013-06-30 18:53:22 -04:00

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Python
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#!/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/>.
DOCUMENTATION = '''
---
module: linode
short_description: create / delete / stop / restart an instance in Linode Public Cloud
description:
- creates / deletes a Linode Public Cloud instance and optionally waits for it to be 'running'.
version_added: "1.3"
options:
state:
description:
- Indicate desired state of the resource
choices: ['present', 'active', 'started', absent', 'deleted', 'stopped', 'restarted']
default: present
api_key:
description:
- Linode API key
default: null
name:
description:
- Name to give the instance (alphanumeric, dashes, underscore)
- To keep sanity on the Linode Web Console, name is prepended with LinodeID_
default: null
type: string
linode_id:
description:
- Unique ID of a linode server
aliases: lid
default: null
type: integer
plan:
description:
- plan to use for the instance (Linode plan)
default: null
type: integer
payment_term:
description:
- payment term to use for the instance (payment term in months)
default: 1
type: integer
choices: [1, 12, 24]
password:
description:
- root password to apply to a new server (auto generated if missing)
default: null
type: string
ssh_pub_key:
description:
- SSH public key applied to root user
default: null
type: string
swap:
description:
- swap size in MB
default: 512
type: integer
distribution:
description:
- distribution to use for the instance (Linode Distribution)
default: null
type: integer
datacenter:
description:
- datacenter to create an instance in (Linode Datacenter)
default: null
type: integer
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
requirements: [ "linode-python" ]
author: Vincent Viallet
notes:
- LINODE_API_KEY env variable can be used instead
'''
EXAMPLES = '''
# Create a server
- local_action:
module: linode
api_key: 'longStringFromLinodeApi'
name: linode-test1
plan: 1
datacenter: 2
distribution: 99
password: 'superSecureRootPassword'
ssh_pub_key: 'ssh-rsa qwerty'
swap: 768
wait: yes
wait_timeout: 600
state: present
# Ensure a running server (create if missing)
- local_action:
module: linode
api_key: 'longStringFromLinodeApi'
name: linode-test1
linode_id: 12345678
plan: 1
datacenter: 2
distribution: 99
password: 'superSecureRootPassword'
ssh_pub_key: 'ssh-rsa qwerty'
swap: 768
wait: yes
wait_timeout: 600
state: present
# Delete a server
- local_action:
module: linode
api_key: 'longStringFromLinodeApi'
name: linode-test1
linode_id: 12345678
state: absent
# Stop a server
- local_action:
module: linode
api_key: 'longStringFromLinodeApi'
name: linode-test1
linode_id: 12345678
state: stopped
# Reboot a server
- local_action:
module: linode
api_key: 'longStringFromLinodeApi'
name: linode-test1
linode_id: 12345678
state: restarted
'''
import sys
import time
import os
try:
# linode module raise warning due to ssl - silently ignore them ...
import warnings
warnings.simplefilter("ignore")
from linode import api as linode_api
except ImportError:
print("failed=True msg='linode-python required for this module'")
sys.exit(1)
def randompass():
'''
Generate a long random password that comply to Linode requirements
'''
# Linode API currently requires the following:
# It must contain at least two of these four character classes:
# lower case letters - upper case letters - numbers - punctuation
# we play it safe :)
import random
import string
lower = ''.join(random.choice(string.ascii_lowercase) for x in range(6))
upper = ''.join(random.choice(string.ascii_uppercase) for x in range(6))
number = ''.join(random.choice(string.digits) for x in range(6))
punct = ''.join(random.choice(string.punctuation) for x in range(6))
p = lower + upper + number + punct
return ''.join(random.sample(p, len(p)))
def getInstanceDetails(api, server):
'''
Return the details of an instance, populating IPs, etc.
'''
instance = {'id': server['LINODEID'],
'name': server['LABEL'],
'public': [],
'private': []}
# Populate with ips
for ip in api.linode_ip_list(LinodeId=server['LINODEID']):
if ip['ISPUBLIC'] and 'ipv4' not in instance:
instance['ipv4'] = ip['IPADDRESS']
instance['fqdn'] = ip['RDNS_NAME']
if ip['ISPUBLIC']:
instance['public'].append({'ipv4': ip['IPADDRESS'],
'fqdn': ip['RDNS_NAME'],
'ip_id': ip['IPADDRESSID']})
else:
instance['private'].append({'ipv4': ip['IPADDRESS'],
'fqdn': ip['RDNS_NAME'],
'ip_id': ip['IPADDRESSID']})
return instance
def linodeServers(module, api, state, name, plan, distribution, datacenter, linode_id,
payment_term, password, ssh_pub_key, swap, wait, wait_timeout):
instances = []
changed = False
new_server = False
servers = []
disks = []
configs = []
jobs = []
# See if we can match an existing server details with the provided linode_id
if linode_id:
# For the moment we only consider linode_id as criteria for match
# Later we can use more (size, name, etc.) and update existing
servers = api.linode_list(LinodeId=linode_id)
# Attempt to fetch details about disks and configs only if servers are
# found with linode_id
if servers:
disks = api.linode_disk_list(LinodeId=linode_id)
configs = api.linode_config_list(LinodeId=linode_id)
# Act on the state
if state in ('active', 'present', 'started'):
# TODO: validate all the plan / distribution / datacenter are valid
# Multi step process/validation:
# - need linode_id (entity)
# - need disk_id for linode_id - create disk from distrib
# - need config_id for linode_id - create config (need kernel)
# Any create step triggers a job that need to be waited for.
if not servers:
for arg in ('name', 'plan', 'distribution', 'datacenter'):
if not eval(arg):
module.fail_json(msg='%s is required for active state' % arg)
# Create linode entity
new_server = True
try:
res = api.linode_create(DatacenterID=datacenter, PlanID=plan,
PaymentTerm=payment_term)
linode_id = res['LinodeID']
# Update linode Label to match name
api.linode_update(LinodeId=linode_id, Label='%s_%s' % (linode_id, name))
# Save server
servers = api.linode_list(LinodeId=linode_id)
except Exception, e:
module.fail_json(msg = '%s' % e.value[0]['ERRORMESSAGE'])
if not disks:
for arg in ('name', 'linode_id', 'distribution'):
if not eval(arg):
module.fail_json(msg='%s is required for active state' % arg)
# Create disks (1 from distrib, 1 for SWAP)
new_server = True
try:
if not password:
# Password is required on creation, if not provided generate one
password = randompass()
if not swap:
swap = 512
# Create data disk
size = servers[0]['TOTALHD'] - swap
if ssh_pub_key:
res = api.linode_disk_createfromdistribution(
LinodeId=linode_id, DistributionID=distribution,
rootPass=password, rootSSHKey=ssh_pub_key,
Label='%s data disk (lid: %s)' % (name, linode_id), Size=size)
else:
res = api.linode_disk_createfromdistribution(
LinodeId=linode_id, DistributionID=distribution, rootPass=password,
Label='%s data disk (lid: %s)' % (name, linode_id), Size=size)
jobs.append(res['JobID'])
# Create SWAP disk
res = api.linode_disk_create(LinodeId=linode_id, Type='swap',
Label='%s swap disk (lid: %s)' % (name, linode_id),
Size=swap)
jobs.append(res['JobID'])
except Exception, e:
# TODO: destroy linode ?
module.fail_json(msg = '%s' % e.value[0]['ERRORMESSAGE'])
if not configs:
for arg in ('name', 'linode_id', 'distribution'):
if not eval(arg):
module.fail_json(msg='%s is required for active state' % arg)
# Check architecture
for distrib in api.avail_distributions():
if distrib['DISTRIBUTIONID'] != distribution:
continue
arch = '32'
if distrib['IS64BIT']:
arch = '64'
break
# Get latest kernel matching arch
for kernel in api.avail_kernels():
if not kernel['LABEL'].startswith('Latest %s' % arch):
continue
kernel_id = kernel['KERNELID']
break
# Get disk list
disks_id = []
for disk in api.linode_disk_list(LinodeId=linode_id):
if disk['TYPE'] == 'ext3':
disks_id.insert(0, str(disk['DISKID']))
continue
disks_id.append(str(disk['DISKID']))
# Trick to get the 9 items in the list
while len(disks_id) < 9:
disks_id.append('')
disks_list = ','.join(disks_id)
# Create config
new_server = True
try:
api.linode_config_create(LinodeId=linode_id, KernelId=kernel_id,
Disklist=disks_list, Label='%s config' % name)
configs = api.linode_config_list(LinodeId=linode_id)
except Exception, e:
module.fail_json(msg = '%s' % e.value[0]['ERRORMESSAGE'])
# Start / Ensure servers are running
for server in servers:
# Refresh server state
server = api.linode_list(LinodeId=server['LINODEID'])[0]
# Ensure existing servers are up and running, boot if necessary
if server['STATUS'] != 1:
res = api.linode_boot(LinodeId=linode_id)
jobs.append(res['JobID'])
changed = True
# wait here until the instances are up
wait_timeout = time.time() + wait_timeout
while wait and wait_timeout > time.time():
# refresh the server details
server = api.linode_list(LinodeId=server['LINODEID'])[0]
# status:
# -2: Boot failed
# 1: Running
if server['STATUS'] in (-2, 1):
break
time.sleep(5)
if wait and wait_timeout <= time.time():
# waiting took too long
module.fail_json(msg = 'Timeout waiting on %s (lid: %s)' %
(server['LABEL'], server['LINODEID']))
# Get a fresh copy of the server details
server = api.linode_list(LinodeId=server['LINODEID'])[0]
if server['STATUS'] == -2:
module.fail_json(msg = '%s (lid: %s) failed to boot' %
(server['LABEL'], server['LINODEID']))
# From now on we know the task is a success
# Build instance report
instance = getInstanceDetails(api, server)
# depending on wait flag select the status
if wait:
instance['status'] = 'Running'
else:
instance['status'] = 'Starting'
# Return the root password if this is a new box and no SSH key
# has been provided
if new_server and not ssh_pub_key:
instance['password'] = password
instances.append(instance)
elif state in ('stopped'):
for arg in ('name', 'linode_id'):
if not eval(arg):
module.fail_json(msg='%s is required for active state' % arg)
if not servers:
module.fail_json(msg = 'Server %s (lid: %s) not found' % (name, linode_id))
for server in servers:
instance = getInstanceDetails(api, server)
if server['STATUS'] != 2:
try:
res = api.linode_shutdown(LinodeId=linode_id)
except Exception, e:
module.fail_json(msg = '%s' % e.value[0]['ERRORMESSAGE'])
instance['status'] = 'Stopping'
changed = True
else:
instance['status'] = 'Stopped'
instances.append(instance)
elif state in ('restarted'):
for arg in ('name', 'linode_id'):
if not eval(arg):
module.fail_json(msg='%s is required for active state' % arg)
if not servers:
module.fail_json(msg = 'Server %s (lid: %s) not found' % (name, linode_id))
for server in servers:
instance = getInstanceDetails(api, server)
try:
res = api.linode_reboot(LinodeId=server['LINODEID'])
except Exception, e:
module.fail_json(msg = '%s' % e.value[0]['ERRORMESSAGE'])
instance['status'] = 'Restarting'
changed = True
instances.append(instance)
elif state in ('absent', 'deleted'):
for server in servers:
instance = getInstanceDetails(api, server)
try:
api.linode_delete(LinodeId=server['LINODEID'], skipChecks=True)
except Exception, e:
module.fail_json(msg = '%s' % e.value[0]['ERRORMESSAGE'])
instance['status'] = 'Deleting'
changed = True
instances.append(instance)
# Ease parsing if only 1 instance
if len(instances) == 1:
module.exit_json(changed=changed, instance=instances[0])
module.exit_json(changed=changed, instances=instances)
def main():
module = AnsibleModule(
argument_spec = dict(
state = dict(default='present', choices=['active', 'present', 'started',
'deleted', 'absent', 'stopped',
'restarted']),
api_key = dict(),
name = dict(type='str'),
plan = dict(type='int'),
distribution = dict(type='int'),
datacenter = dict(type='int'),
linode_id = dict(type='int', aliases=['lid']),
payment_term = dict(default=1, choices=[1, 12, 24]),
password = dict(type='str'),
ssh_pub_key = dict(type='str'),
swap = dict(type='int', default=512),
wait = dict(type='bool', choices=BOOLEANS, default=True),
wait_timeout = dict(default=300),
)
)
state = module.params.get('state')
api_key = module.params.get('api_key')
name = module.params.get('name')
plan = module.params.get('plan')
distribution = module.params.get('distribution')
datacenter = module.params.get('datacenter')
linode_id = module.params.get('linode_id')
payment_term = module.params.get('payment_term')
password = module.params.get('password')
ssh_pub_key = module.params.get('ssh_pub_key')
swap = module.params.get('swap')
wait = module.params.get('wait')
wait_timeout = int(module.params.get('wait_timeout'))
# Setup the api_key
if not api_key:
try:
api_key = os.environ['LINODE_API_KEY']
except KeyError, e:
module.fail_json(msg = 'Unable to load %s' % e.message)
# setup the auth
try:
api = linode_api.Api(api_key)
api.test_echo()
except Exception, e:
module.fail_json(msg = '%s' % e.value[0]['ERRORMESSAGE'])
linodeServers(module, api, state, name, plan, distribution, datacenter, linode_id,
payment_term, password, ssh_pub_key, swap, wait, wait_timeout)
# this is magic, see lib/ansible/module_common.py
#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
main()
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