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494 lines
17 KiB
Python
494 lines
17 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: linode
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short_description: create / delete / stop / restart an instance in Linode Public Cloud
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description:
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- creates / deletes a Linode Public Cloud instance and optionally waits for it to be 'running'.
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version_added: "1.3"
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options:
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state:
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description:
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- Indicate desired state of the resource
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choices: ['present', 'active', 'started', 'absent', 'deleted', 'stopped', 'restarted']
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default: present
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api_key:
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description:
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- Linode API key
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default: null
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name:
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description:
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- Name to give the instance (alphanumeric, dashes, underscore)
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- To keep sanity on the Linode Web Console, name is prepended with LinodeID_
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default: null
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type: string
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linode_id:
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description:
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- Unique ID of a linode server
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aliases: lid
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default: null
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type: integer
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plan:
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description:
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- plan to use for the instance (Linode plan)
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default: null
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type: integer
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payment_term:
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description:
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- payment term to use for the instance (payment term in months)
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default: 1
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type: integer
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choices: [1, 12, 24]
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password:
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description:
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- root password to apply to a new server (auto generated if missing)
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default: null
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type: string
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ssh_pub_key:
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description:
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- SSH public key applied to root user
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default: null
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type: string
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swap:
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description:
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- swap size in MB
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default: 512
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type: integer
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distribution:
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description:
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- distribution to use for the instance (Linode Distribution)
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default: null
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type: integer
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datacenter:
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description:
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- datacenter to create an instance in (Linode Datacenter)
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default: null
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type: integer
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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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default: "no"
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choices: [ "yes", "no" ]
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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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requirements: [ "linode-python", "pycurl" ]
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author: Vincent Viallet
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notes:
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- LINODE_API_KEY env variable can be used instead
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'''
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EXAMPLES = '''
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# Create a server
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- local_action:
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module: linode
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api_key: 'longStringFromLinodeApi'
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name: linode-test1
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plan: 1
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datacenter: 2
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distribution: 99
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password: 'superSecureRootPassword'
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ssh_pub_key: 'ssh-rsa qwerty'
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swap: 768
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wait: yes
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wait_timeout: 600
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state: present
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# Ensure a running server (create if missing)
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- local_action:
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module: linode
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api_key: 'longStringFromLinodeApi'
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name: linode-test1
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linode_id: 12345678
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plan: 1
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datacenter: 2
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distribution: 99
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password: 'superSecureRootPassword'
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ssh_pub_key: 'ssh-rsa qwerty'
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swap: 768
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wait: yes
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wait_timeout: 600
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state: present
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# Delete a server
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- local_action:
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module: linode
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api_key: 'longStringFromLinodeApi'
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name: linode-test1
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linode_id: 12345678
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state: absent
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# Stop a server
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- local_action:
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module: linode
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api_key: 'longStringFromLinodeApi'
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name: linode-test1
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linode_id: 12345678
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state: stopped
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# Reboot a server
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- local_action:
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module: linode
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api_key: 'longStringFromLinodeApi'
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name: linode-test1
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linode_id: 12345678
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state: restarted
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'''
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import sys
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import time
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import os
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try:
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import pycurl
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except ImportError:
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print("failed=True msg='pycurl required for this module'")
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sys.exit(1)
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try:
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from linode import api as linode_api
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except ImportError:
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print("failed=True msg='linode-python required for this module'")
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sys.exit(1)
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def randompass():
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'''
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Generate a long random password that comply to Linode requirements
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'''
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# Linode API currently requires the following:
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# It must contain at least two of these four character classes:
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# lower case letters - upper case letters - numbers - punctuation
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# we play it safe :)
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import random
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import string
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# as of python 2.4, this reseeds the PRNG from urandom
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random.seed()
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lower = ''.join(random.choice(string.ascii_lowercase) for x in range(6))
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upper = ''.join(random.choice(string.ascii_uppercase) for x in range(6))
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number = ''.join(random.choice(string.digits) for x in range(6))
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punct = ''.join(random.choice(string.punctuation) for x in range(6))
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p = lower + upper + number + punct
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return ''.join(random.sample(p, len(p)))
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def getInstanceDetails(api, server):
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'''
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Return the details of an instance, populating IPs, etc.
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'''
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instance = {'id': server['LINODEID'],
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'name': server['LABEL'],
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'public': [],
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'private': []}
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# Populate with ips
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for ip in api.linode_ip_list(LinodeId=server['LINODEID']):
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if ip['ISPUBLIC'] and 'ipv4' not in instance:
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instance['ipv4'] = ip['IPADDRESS']
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instance['fqdn'] = ip['RDNS_NAME']
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if ip['ISPUBLIC']:
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instance['public'].append({'ipv4': ip['IPADDRESS'],
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'fqdn': ip['RDNS_NAME'],
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'ip_id': ip['IPADDRESSID']})
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else:
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instance['private'].append({'ipv4': ip['IPADDRESS'],
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'fqdn': ip['RDNS_NAME'],
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'ip_id': ip['IPADDRESSID']})
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return instance
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def linodeServers(module, api, state, name, plan, distribution, datacenter, linode_id,
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payment_term, password, ssh_pub_key, swap, wait, wait_timeout):
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instances = []
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changed = False
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new_server = False
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servers = []
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disks = []
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configs = []
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jobs = []
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# See if we can match an existing server details with the provided linode_id
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if linode_id:
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# For the moment we only consider linode_id as criteria for match
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# Later we can use more (size, name, etc.) and update existing
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servers = api.linode_list(LinodeId=linode_id)
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# Attempt to fetch details about disks and configs only if servers are
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# found with linode_id
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if servers:
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disks = api.linode_disk_list(LinodeId=linode_id)
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configs = api.linode_config_list(LinodeId=linode_id)
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# Act on the state
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if state in ('active', 'present', 'started'):
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# TODO: validate all the plan / distribution / datacenter are valid
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# Multi step process/validation:
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# - need linode_id (entity)
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# - need disk_id for linode_id - create disk from distrib
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# - need config_id for linode_id - create config (need kernel)
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# Any create step triggers a job that need to be waited for.
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if not servers:
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for arg in ('name', 'plan', 'distribution', 'datacenter'):
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if not eval(arg):
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module.fail_json(msg='%s is required for active state' % arg)
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# Create linode entity
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new_server = True
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try:
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res = api.linode_create(DatacenterID=datacenter, PlanID=plan,
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PaymentTerm=payment_term)
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linode_id = res['LinodeID']
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# Update linode Label to match name
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api.linode_update(LinodeId=linode_id, Label='%s_%s' % (linode_id, name))
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# Save server
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servers = api.linode_list(LinodeId=linode_id)
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except Exception, e:
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module.fail_json(msg = '%s' % e.value[0]['ERRORMESSAGE'])
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if not disks:
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for arg in ('name', 'linode_id', 'distribution'):
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if not eval(arg):
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module.fail_json(msg='%s is required for active state' % arg)
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# Create disks (1 from distrib, 1 for SWAP)
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new_server = True
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try:
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if not password:
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# Password is required on creation, if not provided generate one
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password = randompass()
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if not swap:
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swap = 512
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# Create data disk
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size = servers[0]['TOTALHD'] - swap
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if ssh_pub_key:
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res = api.linode_disk_createfromdistribution(
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LinodeId=linode_id, DistributionID=distribution,
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rootPass=password, rootSSHKey=ssh_pub_key,
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Label='%s data disk (lid: %s)' % (name, linode_id), Size=size)
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else:
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res = api.linode_disk_createfromdistribution(
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LinodeId=linode_id, DistributionID=distribution, rootPass=password,
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Label='%s data disk (lid: %s)' % (name, linode_id), Size=size)
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jobs.append(res['JobID'])
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# Create SWAP disk
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res = api.linode_disk_create(LinodeId=linode_id, Type='swap',
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Label='%s swap disk (lid: %s)' % (name, linode_id),
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Size=swap)
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jobs.append(res['JobID'])
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except Exception, e:
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# TODO: destroy linode ?
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module.fail_json(msg = '%s' % e.value[0]['ERRORMESSAGE'])
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if not configs:
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for arg in ('name', 'linode_id', 'distribution'):
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if not eval(arg):
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module.fail_json(msg='%s is required for active state' % arg)
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# Check architecture
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for distrib in api.avail_distributions():
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if distrib['DISTRIBUTIONID'] != distribution:
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continue
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arch = '32'
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if distrib['IS64BIT']:
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arch = '64'
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break
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# Get latest kernel matching arch
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for kernel in api.avail_kernels():
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if not kernel['LABEL'].startswith('Latest %s' % arch):
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continue
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kernel_id = kernel['KERNELID']
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break
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# Get disk list
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disks_id = []
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for disk in api.linode_disk_list(LinodeId=linode_id):
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if disk['TYPE'] == 'ext3':
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disks_id.insert(0, str(disk['DISKID']))
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continue
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disks_id.append(str(disk['DISKID']))
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# Trick to get the 9 items in the list
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while len(disks_id) < 9:
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disks_id.append('')
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disks_list = ','.join(disks_id)
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# Create config
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new_server = True
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try:
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api.linode_config_create(LinodeId=linode_id, KernelId=kernel_id,
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Disklist=disks_list, Label='%s config' % name)
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configs = api.linode_config_list(LinodeId=linode_id)
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except Exception, e:
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module.fail_json(msg = '%s' % e.value[0]['ERRORMESSAGE'])
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# Start / Ensure servers are running
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for server in servers:
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# Refresh server state
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server = api.linode_list(LinodeId=server['LINODEID'])[0]
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# Ensure existing servers are up and running, boot if necessary
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if server['STATUS'] != 1:
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res = api.linode_boot(LinodeId=linode_id)
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jobs.append(res['JobID'])
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changed = True
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# wait here until the instances are up
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wait_timeout = time.time() + wait_timeout
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while wait and wait_timeout > time.time():
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# refresh the server details
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server = api.linode_list(LinodeId=server['LINODEID'])[0]
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# status:
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# -2: Boot failed
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# 1: Running
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if server['STATUS'] in (-2, 1):
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break
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time.sleep(5)
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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 = 'Timeout waiting on %s (lid: %s)' %
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(server['LABEL'], server['LINODEID']))
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# Get a fresh copy of the server details
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server = api.linode_list(LinodeId=server['LINODEID'])[0]
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if server['STATUS'] == -2:
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module.fail_json(msg = '%s (lid: %s) failed to boot' %
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(server['LABEL'], server['LINODEID']))
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# From now on we know the task is a success
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# Build instance report
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instance = getInstanceDetails(api, server)
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# depending on wait flag select the status
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if wait:
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instance['status'] = 'Running'
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else:
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instance['status'] = 'Starting'
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# Return the root password if this is a new box and no SSH key
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# has been provided
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if new_server and not ssh_pub_key:
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instance['password'] = password
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instances.append(instance)
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elif state in ('stopped'):
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for arg in ('name', 'linode_id'):
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if not eval(arg):
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module.fail_json(msg='%s is required for active state' % arg)
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if not servers:
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module.fail_json(msg = 'Server %s (lid: %s) not found' % (name, linode_id))
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for server in servers:
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instance = getInstanceDetails(api, server)
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if server['STATUS'] != 2:
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try:
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res = api.linode_shutdown(LinodeId=linode_id)
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except Exception, e:
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module.fail_json(msg = '%s' % e.value[0]['ERRORMESSAGE'])
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instance['status'] = 'Stopping'
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changed = True
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else:
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instance['status'] = 'Stopped'
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instances.append(instance)
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elif state in ('restarted'):
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for arg in ('name', 'linode_id'):
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if not eval(arg):
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module.fail_json(msg='%s is required for active state' % arg)
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if not servers:
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module.fail_json(msg = 'Server %s (lid: %s) not found' % (name, linode_id))
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for server in servers:
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instance = getInstanceDetails(api, server)
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try:
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res = api.linode_reboot(LinodeId=server['LINODEID'])
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except Exception, e:
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module.fail_json(msg = '%s' % e.value[0]['ERRORMESSAGE'])
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instance['status'] = 'Restarting'
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changed = True
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instances.append(instance)
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elif state in ('absent', 'deleted'):
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for server in servers:
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instance = getInstanceDetails(api, server)
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try:
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api.linode_delete(LinodeId=server['LINODEID'], skipChecks=True)
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except Exception, e:
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module.fail_json(msg = '%s' % e.value[0]['ERRORMESSAGE'])
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instance['status'] = 'Deleting'
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changed = True
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instances.append(instance)
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# Ease parsing if only 1 instance
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if len(instances) == 1:
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module.exit_json(changed=changed, instance=instances[0])
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module.exit_json(changed=changed, instances=instances)
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def main():
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module = AnsibleModule(
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argument_spec = dict(
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state = dict(default='present', choices=['active', 'present', 'started',
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'deleted', 'absent', 'stopped',
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'restarted']),
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api_key = dict(),
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name = dict(type='str'),
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plan = dict(type='int'),
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distribution = dict(type='int'),
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datacenter = dict(type='int'),
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linode_id = dict(type='int', aliases=['lid']),
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payment_term = dict(type='int', default=1, choices=[1, 12, 24]),
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password = dict(type='str'),
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ssh_pub_key = dict(type='str'),
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swap = dict(type='int', default=512),
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wait = dict(type='bool', default=True),
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wait_timeout = dict(default=300),
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)
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)
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state = module.params.get('state')
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api_key = module.params.get('api_key')
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name = module.params.get('name')
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plan = module.params.get('plan')
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distribution = module.params.get('distribution')
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datacenter = module.params.get('datacenter')
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linode_id = module.params.get('linode_id')
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payment_term = module.params.get('payment_term')
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password = module.params.get('password')
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ssh_pub_key = module.params.get('ssh_pub_key')
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swap = module.params.get('swap')
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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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# Setup the api_key
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if not api_key:
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try:
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api_key = os.environ['LINODE_API_KEY']
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except KeyError, e:
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module.fail_json(msg = 'Unable to load %s' % e.message)
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# setup the auth
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try:
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api = linode_api.Api(api_key)
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api.test_echo()
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except Exception, e:
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module.fail_json(msg = '%s' % e.value[0]['ERRORMESSAGE'])
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linodeServers(module, api, state, name, plan, distribution, datacenter, linode_id,
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payment_term, password, ssh_pub_key, swap, wait, wait_timeout)
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# import module snippets
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from ansible.module_utils.basic import *
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main()
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