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Specify nova image and flavor by name

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Putting uuid and numberic identifies in playbooks is fragile, especially
with cloud providers who change them out from under you. Asking for
Ubuntu 14.04 is consistent, the UUID associated with that is not. Add
mutually exclusive parameters to allow for specifying images by name and
flavors by RAM amount.
This commit is contained in:
Monty Taylor 2014-08-02 18:51:27 -07:00
parent 3fe1083192
commit 65adb6465b
1 changed files with 46 additions and 5 deletions
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51
library/cloud/nova_compute
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@ -73,12 +73,22 @@ options:
default: None
image_id:
description:
- The id of the image that has to be cloned
- The id of the base image to boot. Mutually exclusive with image_name
required: true
default: None
image_name:
description:
- The name of the base image to boot. Mutually exclusive with image_id
required: true
default: None
flavor_id:
description:
- The id of the flavor in which the new VM has to be created
- The id of the flavor in which the new VM has to be created. Mutually exclusive with flavor_ram
required: false
default: 1
flavor_ram:
description:
- The minimum amount of ram in MB that the flavor in which the new VM has to be created must have. Mutually exclusive with flavor_id
required: false
default: 1
key_name:
@ -323,8 +333,35 @@ def _get_ips(addresses, ext_tag, key_name):
return ret
def _get_image_id(module, nova):
if module.params['image_name']:
image = None
for img in nova.images.list():
if img.name == module.params['image_name']:
image = img
break
if img.name.startswith(module.params['image_name']) and '(deprecated)' not in img.name:
image = img
if not image:
module.fail_json(msg = "Error finding image id from name(%s)" % module.params['image_name'])
return image.id
return module.params['image_id']
def _get_flavor_id(module, nova):
if module.params['flavor_ram']:
try:
flavor = nova.flavors.find(ram=module.params['flavor_ram'])
except exceptions.NotFound as e:
module.fail_json(msg = "Error finding flavor with %sMB of RAM" % module.params['flavor_ram'])
return flavor.id
return module.params['flavor_id']
def _create_server(module, nova):
bootargs = [module.params['name'], module.params['image_id'], module.params['flavor_id']]
image_id = _get_image_id(module, nova)
flavor_id = _get_flavor_id(module, nova)
bootargs = [module.params['name'], image_id, flavor_id]
bootkwargs = {
'nics' : module.params['nics'],
'meta' : module.params['meta'],
@ -402,7 +439,9 @@ def main():
argument_spec.update(dict(
name = dict(required=True),
image_id = dict(default=None),
image_name = dict(default=None),
flavor_id = dict(default=1),
flavor_ram = dict(default=None, type='int'),
key_name = dict(default=None),
security_groups = dict(default='default'),
nics = dict(default=None),
@ -421,6 +460,8 @@ def main():
['auto_floating_ip','floating_ips'],
['auto_floating_ip','floating_ip_pools'],
['floating_ips','floating_ip_pools'],
['image_id','image_name'],
['flavor_id','flavor_ram'],
],
)
@ -438,8 +479,8 @@ def main():
module.fail_json(msg = "Unable to authorize user: %s" % e.message)
if module.params['state'] == 'present':
if not module.params['image_id']:
module.fail_json( msg = "Parameter 'image_id' is required if state == 'present'")
if not module.params['image_id'] and not module.params['image_name']:
module.fail_json( msg = "Parameter 'image_id' or `image_name` is required if state == 'present'")
else:
_get_server_state(module, nova)
_create_server(module, nova)