Not core.

This commit is contained in:
Michael DeHaan 2014-09-26 09:32:13 -04:00
parent 1e47a969b8
commit dc8540c755
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#!/usr/bin/python
# (c) 2013, Vincent Van der Kussen <vincent at vanderkussen.org>
#
# 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: ovirt
author: Vincent Van der Kussen
short_description: oVirt/RHEV platform management
description:
- allows you to create new instances, either from scratch or an image, in addition to deleting or stopping instances on the oVirt/RHEV platform
version_added: "1.4"
options:
user:
description:
- the user to authenticate with
default: null
required: true
aliases: []
url:
description:
- the url of the oVirt instance
default: null
required: true
aliases: []
instance_name:
description:
- the name of the instance to use
default: null
required: true
aliases: [ vmname ]
password:
description:
- password of the user to authenticate with
default: null
required: true
aliases: []
image:
description:
- template to use for the instance
default: null
required: false
aliases: []
resource_type:
description:
- whether you want to deploy an image or create an instance from scratch.
default: null
required: false
aliases: []
choices: [ 'new', 'template' ]
zone:
description:
- deploy the image to this oVirt cluster
default: null
required: false
aliases: []
instance_disksize:
description:
- size of the instance's disk in GB
default: null
required: false
aliases: [ vm_disksize]
instance_cpus:
description:
- the instance's number of cpu's
default: 1
required: false
aliases: [ vmcpus ]
instance_nic:
description:
- name of the network interface in oVirt/RHEV
default: null
required: false
aliases: [ vmnic ]
instance_network:
description:
- the logical network the machine should belong to
default: rhevm
required: false
aliases: [ vmnetwork ]
instance_mem:
description:
- the instance's amount of memory in MB
default: null
required: false
aliases: [ vmmem ]
instance_type:
description:
- define if the instance is a server or desktop
default: server
required: false
aliases: [ vmtype ]
choices: [ 'server', 'desktop' ]
disk_alloc:
description:
- define if disk is thin or preallocated
default: thin
required: false
aliases: []
choices: [ 'thin', 'preallocated' ]
disk_int:
description:
- interface type of the disk
default: virtio
required: false
aliases: []
choices: [ 'virtio', 'ide' ]
instance_os:
description:
- type of Operating System
default: null
required: false
aliases: [ vmos ]
instance_cores:
description:
- define the instance's number of cores
default: 1
required: false
aliases: [ vmcores ]
sdomain:
description:
- the Storage Domain where you want to create the instance's disk on.
default: null
required: false
aliases: []
region:
description:
- the oVirt/RHEV datacenter where you want to deploy to
default: null
required: false
aliases: []
state:
description:
- create, terminate or remove instances
default: 'present'
required: false
aliases: []
choices: ['present', 'absent', 'shutdown', 'started', 'restarted']
requirements: [ "ovirt-engine-sdk" ]
'''
EXAMPLES = '''
# Basic example provisioning from image.
action: ovirt >
user=admin@internal
url=https://ovirt.example.com
instance_name=ansiblevm04
password=secret
image=centos_64
zone=cluster01
resource_type=template"
# Full example to create new instance from scratch
action: ovirt >
instance_name=testansible
resource_type=new
instance_type=server
user=admin@internal
password=secret
url=https://ovirt.example.com
instance_disksize=10
zone=cluster01
region=datacenter1
instance_cpus=1
instance_nic=nic1
instance_network=rhevm
instance_mem=1000
disk_alloc=thin
sdomain=FIBER01
instance_cores=1
instance_os=rhel_6x64
disk_int=virtio"
# stopping an instance
action: ovirt >
instance_name=testansible
state=stopped
user=admin@internal
password=secret
url=https://ovirt.example.com
# starting an instance
action: ovirt >
instance_name=testansible
state=started
user=admin@internal
password=secret
url=https://ovirt.example.com
'''
try:
from ovirtsdk.api import API
from ovirtsdk.xml import params
except ImportError:
print "failed=True msg='ovirtsdk required for this module'"
sys.exit(1)
# ------------------------------------------------------------------- #
# create connection with API
#
def conn(url, user, password):
api = API(url=url, username=user, password=password, insecure=True)
try:
value = api.test()
except:
print "error connecting to the oVirt API"
sys.exit(1)
return api
# ------------------------------------------------------------------- #
# Create VM from scratch
def create_vm(conn, vmtype, vmname, zone, vmdisk_size, vmcpus, vmnic, vmnetwork, vmmem, vmdisk_alloc, sdomain, vmcores, vmos, vmdisk_int):
if vmdisk_alloc == 'thin':
# define VM params
vmparams = params.VM(name=vmname,cluster=conn.clusters.get(name=zone),os=params.OperatingSystem(type_=vmos),template=conn.templates.get(name="Blank"),memory=1024 * 1024 * int(vmmem),cpu=params.CPU(topology=params.CpuTopology(cores=int(vmcores))), type_=vmtype)
# define disk params
vmdisk= params.Disk(size=1024 * 1024 * 1024 * int(vmdisk_size), wipe_after_delete=True, sparse=True, interface=vmdisk_int, type_="System", format='cow',
storage_domains=params.StorageDomains(storage_domain=[conn.storagedomains.get(name=sdomain)]))
# define network parameters
network_net = params.Network(name=vmnetwork)
nic_net1 = params.NIC(name='nic1', network=network_net, interface='virtio')
elif vmdisk_alloc == 'preallocated':
# define VM params
vmparams = params.VM(name=vmname,cluster=conn.clusters.get(name=zone),os=params.OperatingSystem(type_=vmos),template=conn.templates.get(name="Blank"),memory=1024 * 1024 * int(vmmem),cpu=params.CPU(topology=params.CpuTopology(cores=int(vmcores))) ,type_=vmtype)
# define disk params
vmdisk= params.Disk(size=1024 * 1024 * 1024 * int(vmdisk_size), wipe_after_delete=True, sparse=False, interface=vmdisk_int, type_="System", format='raw',
storage_domains=params.StorageDomains(storage_domain=[conn.storagedomains.get(name=sdomain)]))
# define network parameters
network_net = params.Network(name=vmnetwork)
nic_net1 = params.NIC(name=vmnic, network=network_net, interface='virtio')
try:
conn.vms.add(vmparams)
except:
print "Error creating VM with specified parameters"
sys.exit(1)
vm = conn.vms.get(name=vmname)
try:
vm.disks.add(vmdisk)
except:
print "Error attaching disk"
try:
vm.nics.add(nic_net1)
except:
print "Error adding nic"
# create an instance from a template
def create_vm_template(conn, vmname, image, zone):
vmparams = params.VM(name=vmname, cluster=conn.clusters.get(name=zone), template=conn.templates.get(name=image),disks=params.Disks(clone=True))
try:
conn.vms.add(vmparams)
except:
print 'error adding template %s' % image
sys.exit(1)
# start instance
def vm_start(conn, vmname):
vm = conn.vms.get(name=vmname)
vm.start()
# Stop instance
def vm_stop(conn, vmname):
vm = conn.vms.get(name=vmname)
vm.stop()
# restart instance
def vm_restart(conn, vmname):
state = vm_status(conn, vmname)
vm = conn.vms.get(name=vmname)
vm.stop()
while conn.vms.get(vmname).get_status().get_state() != 'down':
time.sleep(5)
vm.start()
# remove an instance
def vm_remove(conn, vmname):
vm = conn.vms.get(name=vmname)
vm.delete()
# ------------------------------------------------------------------- #
# VM statuses
#
# Get the VMs status
def vm_status(conn, vmname):
status = conn.vms.get(name=vmname).status.state
print "vm status is : %s" % status
return status
# Get VM object and return it's name if object exists
def get_vm(conn, vmname):
vm = conn.vms.get(name=vmname)
if vm == None:
name = "empty"
print "vmname: %s" % name
else:
name = vm.get_name()
print "vmname: %s" % name
return name
# ------------------------------------------------------------------- #
# Hypervisor operations
#
# not available yet
# ------------------------------------------------------------------- #
# Main
def main():
module = AnsibleModule(
argument_spec = dict(
state = dict(default='present', choices=['present', 'absent', 'shutdown', 'started', 'restart']),
#name = dict(required=True),
user = dict(required=True),
url = dict(required=True),
instance_name = dict(required=True, aliases=['vmname']),
password = dict(required=True),
image = dict(),
resource_type = dict(choices=['new', 'template']),
zone = dict(),
instance_disksize = dict(aliases=['vm_disksize']),
instance_cpus = dict(default=1, aliases=['vmcpus']),
instance_nic = dict(aliases=['vmnic']),
instance_network = dict(default='rhevm', aliases=['vmnetwork']),
instance_mem = dict(aliases=['vmmem']),
instance_type = dict(default='server', aliases=['vmtype'], choices=['server', 'desktop']),
disk_alloc = dict(default='thin', choices=['thin', 'preallocated']),
disk_int = dict(default='virtio', choices=['virtio', 'ide']),
instance_os = dict(aliases=['vmos']),
instance_cores = dict(default=1, aliases=['vmcores']),
sdomain = dict(),
region = dict(),
)
)
state = module.params['state']
user = module.params['user']
url = module.params['url']
vmname = module.params['instance_name']
password = module.params['password']
image = module.params['image'] # name of the image to deploy
resource_type = module.params['resource_type'] # template or from scratch
zone = module.params['zone'] # oVirt cluster
vmdisk_size = module.params['instance_disksize'] # disksize
vmcpus = module.params['instance_cpus'] # number of cpu
vmnic = module.params['instance_nic'] # network interface
vmnetwork = module.params['instance_network'] # logical network
vmmem = module.params['instance_mem'] # mem size
vmdisk_alloc = module.params['disk_alloc'] # thin, preallocated
vmdisk_int = module.params['disk_int'] # disk interface virtio or ide
vmos = module.params['instance_os'] # Operating System
vmtype = module.params['instance_type'] # server or desktop
vmcores = module.params['instance_cores'] # number of cores
sdomain = module.params['sdomain'] # storage domain to store disk on
region = module.params['region'] # oVirt Datacenter
#initialize connection
c = conn(url+"/api", user, password)
if state == 'present':
if get_vm(c, vmname) == "empty":
if resource_type == 'template':
create_vm_template(c, vmname, image, zone)
module.exit_json(changed=True, msg="deployed VM %s from template %s" % (vmname,image))
elif resource_type == 'new':
# FIXME: refactor, use keyword args.
create_vm(c, vmtype, vmname, zone, vmdisk_size, vmcpus, vmnic, vmnetwork, vmmem, vmdisk_alloc, sdomain, vmcores, vmos, vmdisk_int)
module.exit_json(changed=True, msg="deployed VM %s from scratch" % vmname)
else:
module.exit_json(changed=False, msg="You did not specify a resource type")
else:
module.exit_json(changed=False, msg="VM %s already exists" % vmname)
if state == 'started':
if vm_status(c, vmname) == 'up':
module.exit_json(changed=False, msg="VM %s is already running" % vmname)
else:
vm_start(c, vmname)
module.exit_json(changed=True, msg="VM %s started" % vmname)
if state == 'shutdown':
if vm_status(c, vmname) == 'down':
module.exit_json(changed=False, msg="VM %s is already shutdown" % vmname)
else:
vm_stop(c, vmname)
module.exit_json(changed=True, msg="VM %s is shutting down" % vmname)
if state == 'restart':
if vm_status(c, vmname) == 'up':
vm_restart(c, vmname)
module.exit_json(changed=True, msg="VM %s is restarted" % vmname)
else:
module.exit_json(changed=False, msg="VM %s is not running" % vmname)
if state == 'absent':
if get_vm(c, vmname) == "empty":
module.exit_json(changed=False, msg="VM %s does not exist" % vmname)
else:
vm_remove(c, vmname)
module.exit_json(changed=True, msg="VM %s removed" % vmname)
# import module snippets
from ansible.module_utils.basic import *
main()

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#!/usr/bin/python
# -*- coding: utf-8 -*-
"""
Virt management features
Copyright 2007, 2012 Red Hat, Inc
Michael DeHaan <michael.dehaan@gmail.com>
Seth Vidal <skvidal@fedoraproject.org>
This software may be freely redistributed under the terms of the GNU
general public license.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
DOCUMENTATION = '''
---
module: virt
short_description: Manages virtual machines supported by libvirt
description:
- Manages virtual machines supported by I(libvirt).
version_added: "0.2"
options:
name:
description:
- name of the guest VM being managed. Note that VM must be previously
defined with xml.
required: true
default: null
aliases: []
state:
description:
- Note that there may be some lag for state requests like C(shutdown)
since these refer only to VM states. After starting a guest, it may not
be immediately accessible.
required: false
choices: [ "running", "shutdown", "destroyed", "paused" ]
default: "no"
command:
description:
- in addition to state management, various non-idempotent commands are available. See examples
required: false
choices: ["create","status", "start", "stop", "pause", "unpause",
"shutdown", "undefine", "destroy", "get_xml", "autostart",
"freemem", "list_vms", "info", "nodeinfo", "virttype", "define"]
uri:
description:
- libvirt connection uri
required: false
defaults: qemu:///system
xml:
description:
- XML document used with the define command
required: false
default: null
requirements: [ "libvirt" ]
author: Michael DeHaan, Seth Vidal
'''
EXAMPLES = '''
# a playbook task line:
- virt: name=alpha state=running
# /usr/bin/ansible invocations
ansible host -m virt -a "name=alpha command=status"
ansible host -m virt -a "name=alpha command=get_xml"
ansible host -m virt -a "name=alpha command=create uri=lxc:///"
# a playbook example of defining and launching an LXC guest
tasks:
- name: define vm
virt: name=foo
command=define
xml="{{ lookup('template', 'container-template.xml.j2') }}"
uri=lxc:///
- name: start vm
virt: name=foo state=running uri=lxc:///
'''
VIRT_FAILED = 1
VIRT_SUCCESS = 0
VIRT_UNAVAILABLE=2
import sys
try:
import libvirt
except ImportError:
print "failed=True msg='libvirt python module unavailable'"
sys.exit(1)
ALL_COMMANDS = []
VM_COMMANDS = ['create','status', 'start', 'stop', 'pause', 'unpause',
'shutdown', 'undefine', 'destroy', 'get_xml', 'autostart', 'define']
HOST_COMMANDS = ['freemem', 'list_vms', 'info', 'nodeinfo', 'virttype']
ALL_COMMANDS.extend(VM_COMMANDS)
ALL_COMMANDS.extend(HOST_COMMANDS)
VIRT_STATE_NAME_MAP = {
0 : "running",
1 : "running",
2 : "running",
3 : "paused",
4 : "shutdown",
5 : "shutdown",
6 : "crashed"
}
class VMNotFound(Exception):
pass
class LibvirtConnection(object):
def __init__(self, uri, module):
self.module = module
cmd = "uname -r"
rc, stdout, stderr = self.module.run_command(cmd)
if "xen" in stdout:
conn = libvirt.open(None)
else:
conn = libvirt.open(uri)
if not conn:
raise Exception("hypervisor connection failure")
self.conn = conn
def find_vm(self, vmid):
"""
Extra bonus feature: vmid = -1 returns a list of everything
"""
conn = self.conn
vms = []
# this block of code borrowed from virt-manager:
# get working domain's name
ids = conn.listDomainsID()
for id in ids:
vm = conn.lookupByID(id)
vms.append(vm)
# get defined domain
names = conn.listDefinedDomains()
for name in names:
vm = conn.lookupByName(name)
vms.append(vm)
if vmid == -1:
return vms
for vm in vms:
if vm.name() == vmid:
return vm
raise VMNotFound("virtual machine %s not found" % vmid)
def shutdown(self, vmid):
return self.find_vm(vmid).shutdown()
def pause(self, vmid):
return self.suspend(self.conn,vmid)
def unpause(self, vmid):
return self.resume(self.conn,vmid)
def suspend(self, vmid):
return self.find_vm(vmid).suspend()
def resume(self, vmid):
return self.find_vm(vmid).resume()
def create(self, vmid):
return self.find_vm(vmid).create()
def destroy(self, vmid):
return self.find_vm(vmid).destroy()
def undefine(self, vmid):
return self.find_vm(vmid).undefine()
def get_status2(self, vm):
state = vm.info()[0]
return VIRT_STATE_NAME_MAP.get(state,"unknown")
def get_status(self, vmid):
state = self.find_vm(vmid).info()[0]
return VIRT_STATE_NAME_MAP.get(state,"unknown")
def nodeinfo(self):
return self.conn.getInfo()
def get_type(self):
return self.conn.getType()
def get_xml(self, vmid):
vm = self.conn.lookupByName(vmid)
return vm.XMLDesc(0)
def get_maxVcpus(self, vmid):
vm = self.conn.lookupByName(vmid)
return vm.maxVcpus()
def get_maxMemory(self, vmid):
vm = self.conn.lookupByName(vmid)
return vm.maxMemory()
def getFreeMemory(self):
return self.conn.getFreeMemory()
def get_autostart(self, vmid):
vm = self.conn.lookupByName(vmid)
return vm.autostart()
def set_autostart(self, vmid, val):
vm = self.conn.lookupByName(vmid)
return vm.setAutostart(val)
def define_from_xml(self, xml):
return self.conn.defineXML(xml)
class Virt(object):
def __init__(self, uri, module):
self.module = module
self.uri = uri
def __get_conn(self):
self.conn = LibvirtConnection(self.uri, self.module)
return self.conn
def get_vm(self, vmid):
self.__get_conn()
return self.conn.find_vm(vmid)
def state(self):
vms = self.list_vms()
state = []
for vm in vms:
state_blurb = self.conn.get_status(vm)
state.append("%s %s" % (vm,state_blurb))
return state
def info(self):
vms = self.list_vms()
info = dict()
for vm in vms:
data = self.conn.find_vm(vm).info()
# libvirt returns maxMem, memory, and cpuTime as long()'s, which
# xmlrpclib tries to convert to regular int's during serialization.
# This throws exceptions, so convert them to strings here and
# assume the other end of the xmlrpc connection can figure things
# out or doesn't care.
info[vm] = {
"state" : VIRT_STATE_NAME_MAP.get(data[0],"unknown"),
"maxMem" : str(data[1]),
"memory" : str(data[2]),
"nrVirtCpu" : data[3],
"cpuTime" : str(data[4]),
}
info[vm]["autostart"] = self.conn.get_autostart(vm)
return info
def nodeinfo(self):
self.__get_conn()
info = dict()
data = self.conn.nodeinfo()
info = {
"cpumodel" : str(data[0]),
"phymemory" : str(data[1]),
"cpus" : str(data[2]),
"cpumhz" : str(data[3]),
"numanodes" : str(data[4]),
"sockets" : str(data[5]),
"cpucores" : str(data[6]),
"cputhreads" : str(data[7])
}
return info
def list_vms(self, state=None):
self.conn = self.__get_conn()
vms = self.conn.find_vm(-1)
results = []
for x in vms:
try:
if state:
vmstate = self.conn.get_status2(x)
if vmstate == state:
results.append(x.name())
else:
results.append(x.name())
except:
pass
return results
def virttype(self):
return self.__get_conn().get_type()
def autostart(self, vmid):
self.conn = self.__get_conn()
return self.conn.set_autostart(vmid, True)
def freemem(self):
self.conn = self.__get_conn()
return self.conn.getFreeMemory()
def shutdown(self, vmid):
""" Make the machine with the given vmid stop running. Whatever that takes. """
self.__get_conn()
self.conn.shutdown(vmid)
return 0
def pause(self, vmid):
""" Pause the machine with the given vmid. """
self.__get_conn()
return self.conn.suspend(vmid)
def unpause(self, vmid):
""" Unpause the machine with the given vmid. """
self.__get_conn()
return self.conn.resume(vmid)
def create(self, vmid):
""" Start the machine via the given vmid """
self.__get_conn()
return self.conn.create(vmid)
def start(self, vmid):
""" Start the machine via the given id/name """
self.__get_conn()
return self.conn.create(vmid)
def destroy(self, vmid):
""" Pull the virtual power from the virtual domain, giving it virtually no time to virtually shut down. """
self.__get_conn()
return self.conn.destroy(vmid)
def undefine(self, vmid):
""" Stop a domain, and then wipe it from the face of the earth. (delete disk/config file) """
self.__get_conn()
return self.conn.undefine(vmid)
def status(self, vmid):
"""
Return a state suitable for server consumption. Aka, codes.py values, not XM output.
"""
self.__get_conn()
return self.conn.get_status(vmid)
def get_xml(self, vmid):
"""
Receive a Vm id as input
Return an xml describing vm config returned by a libvirt call
"""
self.__get_conn()
return self.conn.get_xml(vmid)
def get_maxVcpus(self, vmid):
"""
Gets the max number of VCPUs on a guest
"""
self.__get_conn()
return self.conn.get_maxVcpus(vmid)
def get_max_memory(self, vmid):
"""
Gets the max memory on a guest
"""
self.__get_conn()
return self.conn.get_MaxMemory(vmid)
def define(self, xml):
"""
Define a guest with the given xml
"""
self.__get_conn()
return self.conn.define_from_xml(xml)
def core(module):
state = module.params.get('state', None)
guest = module.params.get('name', None)
command = module.params.get('command', None)
uri = module.params.get('uri', None)
xml = module.params.get('xml', None)
v = Virt(uri, module)
res = {}
if state and command=='list_vms':
res = v.list_vms(state=state)
if type(res) != dict:
res = { command: res }
return VIRT_SUCCESS, res
if state:
if not guest:
module.fail_json(msg = "state change requires a guest specified")
res['changed'] = False
if state == 'running':
if v.status(guest) is 'paused':
res['changed'] = True
res['msg'] = v.unpause(guest)
elif v.status(guest) is not 'running':
res['changed'] = True
res['msg'] = v.start(guest)
elif state == 'shutdown':
if v.status(guest) is not 'shutdown':
res['changed'] = True
res['msg'] = v.shutdown(guest)
elif state == 'destroyed':
if v.status(guest) is not 'shutdown':
res['changed'] = True
res['msg'] = v.destroy(guest)
elif state == 'paused':
if v.status(guest) is 'running':
res['changed'] = True
res['msg'] = v.pause(guest)
else:
module.fail_json(msg="unexpected state")
return VIRT_SUCCESS, res
if command:
if command in VM_COMMANDS:
if not guest:
module.fail_json(msg = "%s requires 1 argument: guest" % command)
if command == 'define':
if not xml:
module.fail_json(msg = "define requires xml argument")
try:
v.get_vm(guest)
except VMNotFound:
v.define(xml)
res = {'changed': True, 'created': guest}
return VIRT_SUCCESS, res
res = getattr(v, command)(guest)
if type(res) != dict:
res = { command: res }
return VIRT_SUCCESS, res
elif hasattr(v, command):
res = getattr(v, command)()
if type(res) != dict:
res = { command: res }
return VIRT_SUCCESS, res
else:
module.fail_json(msg="Command %s not recognized" % basecmd)
module.fail_json(msg="expected state or command parameter to be specified")
def main():
module = AnsibleModule(argument_spec=dict(
name = dict(aliases=['guest']),
state = dict(choices=['running', 'shutdown', 'destroyed', 'paused']),
command = dict(choices=ALL_COMMANDS),
uri = dict(default='qemu:///system'),
xml = dict(),
))
rc = VIRT_SUCCESS
try:
rc, result = core(module)
except Exception, e:
module.fail_json(msg=str(e))
if rc != 0: # something went wrong emit the msg
module.fail_json(rc=rc, msg=result)
else:
module.exit_json(**result)
# import module snippets
from ansible.module_utils.basic import *
main()