def create_instances(module, gce, instance_names):
"""Creates new instances. Attributes other than instance_names are picked
up from 'module'
module : AnsibleModule object
gce: authenticated GCE libcloud driver
instance_names: python list of instance names to create
Returns:
A list of dictionaries with instance information
about the instances that were launched.
"""
image = module.params.get('image')
machine_type = module.params.get('machine_type')
metadata = module.params.get('metadata')
network = module.params.get('network')
persistent_boot_disk = module.params.get('persistent_boot_disk')
disks = module.params.get('disks')
state = module.params.get('state')
tags = module.params.get('tags')
zone = module.params.get('zone')
ip_forward = module.params.get('ip_forward')
external_ip = module.params.get('external_ip')
disk_auto_delete = module.params.get('disk_auto_delete')
service_account_permissions = module.params.get(
'service_account_permissions')
service_account_email = module.params.get('service_account_email')
if external_ip == "none":
instance_external_ip = None
elif not isinstance(external_ip, basestring):
try:
if len(external_ip) != 0:
instance_external_ip = external_ip.pop(0)
# check if instance_external_ip is an ip or a name
try:
socket.inet_aton(instance_external_ip)
instance_external_ip = GCEAddress(
id='unknown',
name='unknown',
address=instance_external_ip,
region='unknown',
driver=gce)
except socket.error:
instance_external_ip = gce.ex_get_address(
instance_external_ip)
else:
instance_external_ip = 'ephemeral'
except GoogleBaseError, e:
module.fail_json(
msg=
'Unexpected error attempting to get a static ip %s, error: %s'
% (external_ip, e.value))
def create_instances(module, gce, instance_names, number, lc_zone):
"""Creates new instances. Attributes other than instance_names are picked
up from 'module'
module : AnsibleModule object
gce: authenticated GCE libcloud driver
instance_names: python list of instance names to create
number: number of instances to create
lc_zone: GCEZone object
Returns:
A list of dictionaries with instance information
about the instances that were launched.
"""
image = module.params.get('image')
image_family = module.params.get('image_family')
external_projects = module.params.get('external_projects')
machine_type = module.params.get('machine_type')
metadata = module.params.get('metadata')
network = module.params.get('network')
subnetwork = module.params.get('subnetwork')
persistent_boot_disk = module.params.get('persistent_boot_disk')
disks = module.params.get('disks')
tags = module.params.get('tags')
ip_forward = module.params.get('ip_forward')
external_ip = module.params.get('external_ip')
disk_auto_delete = module.params.get('disk_auto_delete')
preemptible = module.params.get('preemptible')
disk_size = module.params.get('disk_size')
service_account_permissions = module.params.get('service_account_permissions')
if external_ip == "none":
instance_external_ip = None
elif external_ip != "ephemeral":
instance_external_ip = external_ip
try:
# check if instance_external_ip is an ip or a name
try:
socket.inet_aton(instance_external_ip)
instance_external_ip = GCEAddress(id='unknown', name='unknown', address=instance_external_ip, region='unknown', driver=gce)
except socket.error:
instance_external_ip = gce.ex_get_address(instance_external_ip)
except GoogleBaseError as e:
module.fail_json(msg='Unexpected error attempting to get a static ip %s, error: %s' % (external_ip, e.value))
else:
instance_external_ip = external_ip
new_instances = []
changed = False
lc_disks = []
disk_modes = []
for i, disk in enumerate(disks or []):
if isinstance(disk, dict):
lc_disks.append(gce.ex_get_volume(disk['name'], lc_zone))
disk_modes.append(disk['mode'])
else:
lc_disks.append(gce.ex_get_volume(disk, lc_zone))
# boot disk is implicitly READ_WRITE
disk_modes.append('READ_ONLY' if i > 0 else 'READ_WRITE')
lc_network = gce.ex_get_network(network)
lc_machine_type = gce.ex_get_size(machine_type, lc_zone)
# Try to convert the user's metadata value into the format expected
# by GCE. First try to ensure user has proper quoting of a
# dictionary-like syntax using 'literal_eval', then convert the python
# dict into a python list of 'key' / 'value' dicts. Should end up
# with:
# [ {'key': key1, 'value': value1}, {'key': key2, 'value': value2}, ...]
if metadata:
if isinstance(metadata, dict):
md = metadata
else:
try:
md = literal_eval(str(metadata))
if not isinstance(md, dict):
raise ValueError('metadata must be a dict')
except ValueError as e:
module.fail_json(msg='bad metadata: %s' % str(e))
except SyntaxError as e:
module.fail_json(msg='bad metadata syntax')
if hasattr(libcloud, '__version__') and libcloud.__version__ < '0.15':
items = []
for k, v in md.items():
items.append({"key": k, "value": v})
metadata = {'items': items}
else:
metadata = md
lc_image = LazyDiskImage(module, gce, image, lc_disks, family=image_family, projects=external_projects)
ex_sa_perms = []
bad_perms = []
if service_account_permissions:
for perm in service_account_permissions:
if perm not in gce.SA_SCOPES_MAP and not perm.startswith('https://www.googleapis.com/auth'):
bad_perms.append(perm)
if len(bad_perms) > 0:
module.fail_json(msg='bad permissions: %s' % str(bad_perms))
ex_sa_perms.append({'email': "default"})
ex_sa_perms[0]['scopes'] = service_account_permissions
# These variables all have default values but check just in case
if not lc_network or not lc_machine_type or not lc_zone:
module.fail_json(msg='Missing required create instance variable',
changed=False)
gce_args = dict(
location=lc_zone,
ex_network=network, ex_tags=tags, ex_metadata=metadata,
ex_can_ip_forward=ip_forward,
external_ip=instance_external_ip, ex_disk_auto_delete=disk_auto_delete,
ex_service_accounts=ex_sa_perms
)
if preemptible is not None:
gce_args['ex_preemptible'] = preemptible
if subnetwork is not None:
gce_args['ex_subnetwork'] = subnetwork
if isinstance(instance_names, str) and not number:
instance_names = [instance_names]
if isinstance(instance_names, str) and number:
instance_responses = gce.ex_create_multiple_nodes(instance_names, lc_machine_type,
lc_image(), number, **gce_args)
for resp in instance_responses:
n = resp
if isinstance(resp, libcloud.compute.drivers.gce.GCEFailedNode):
try:
n = gce.ex_get_node(n.name, lc_zone)
except ResourceNotFoundError:
pass
else:
# Assure that at least one node has been created to set changed=True
changed = True
new_instances.append(n)
else:
for instance in instance_names:
pd = None
if lc_disks:
pd = lc_disks[0]
elif persistent_boot_disk:
try:
pd = gce.ex_get_volume("%s" % instance, lc_zone)
except ResourceNotFoundError:
pd = gce.create_volume(disk_size, "%s" % instance, image=lc_image())
gce_args['ex_boot_disk'] = pd
inst = None
try:
inst = gce.ex_get_node(instance, lc_zone)
except ResourceNotFoundError:
inst = gce.create_node(
instance, lc_machine_type, lc_image(), **gce_args
)
changed = True
except GoogleBaseError as e:
module.fail_json(msg='Unexpected error attempting to create ' +
'instance %s, error: %s' % (instance, e.value))
if inst:
new_instances.append(inst)
for inst in new_instances:
for i, lc_disk in enumerate(lc_disks):
# Check whether the disk is already attached
if (len(inst.extra['disks']) > i):
attached_disk = inst.extra['disks'][i]
if attached_disk['source'] != lc_disk.extra['selfLink']:
module.fail_json(
msg=("Disk at index %d does not match: requested=%s found=%s" % (
i, lc_disk.extra['selfLink'], attached_disk['source'])))
elif attached_disk['mode'] != disk_modes[i]:
module.fail_json(
msg=("Disk at index %d is in the wrong mode: requested=%s found=%s" % (
i, disk_modes[i], attached_disk['mode'])))
else:
continue
gce.attach_volume(inst, lc_disk, ex_mode=disk_modes[i])
# Work around libcloud bug: attached volumes don't get added
# to the instance metadata. get_instance_info() only cares about
# source and index.
if len(inst.extra['disks']) != i + 1:
inst.extra['disks'].append(
{'source': lc_disk.extra['selfLink'], 'index': i})
instance_names = []
instance_json_data = []
for inst in new_instances:
d = get_instance_info(inst)
instance_names.append(d['name'])
instance_json_data.append(d)
return (changed, instance_json_data, instance_names)
