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cloudscale_server: refactor to implement update (#52683)

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René Moser 2019-03-05 10:40:16 +01:00 committed by GitHub
parent d1c0df9e92
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4 changed files with 445 additions and 137 deletions
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18
lib/ansible/module_utils/cloudscale.py
View file

@ -6,6 +6,7 @@
from __future__ import absolute_import, division, print_function
__metaclass__ = type
from copy import deepcopy
from ansible.module_utils.basic import env_fallback
from ansible.module_utils.urls import fetch_url
from ansible.module_utils._text import to_text
@ -27,6 +28,10 @@ class AnsibleCloudscaleBase(object):
def __init__(self, module):
self._module = module
self._auth_header = {'Authorization': 'Bearer %s' % module.params['api_token']}
self._result = {
'changed': False,
'diff': dict(before=dict(), after=dict()),
}
def _get(self, api_call):
resp, info = fetch_url(self._module, API_URL + api_call,
@ -44,6 +49,13 @@ class AnsibleCloudscaleBase(object):
def _post_or_patch(self, api_call, method, data):
headers = self._auth_header.copy()
if data is not None:
# Sanitize data dictionary
# Deepcopy: Duplicate the data object for iteration, because
# iterating an object and changing it at the same time is insecure
for k, v in deepcopy(data).items():
if v is None:
del data[k]
data = self._module.jsonify(data)
headers['Content-type'] = 'application/json'
@ -80,3 +92,9 @@ class AnsibleCloudscaleBase(object):
else:
self._module.fail_json(msg='Failure while calling the cloudscale.ch API with DELETE for '
'"%s".' % api_call, fetch_url_info=info)
def get_result(self, resource):
if resource:
for k, v in resource.items():
self._result[k] = v
return self._result

354
lib/ansible/modules/cloud/cloudscale/cloudscale_server.py
View file

@ -1,7 +1,8 @@
#!/usr/bin/python
# -*- coding: utf-8 -*-
#
# (c) 2017, Gaudenz Steinlin <gaudenz.steinlin@cloudscale.ch>
# Copyright: (c) 2017, Gaudenz Steinlin <gaudenz.steinlin@cloudscale.ch>
# Copyright: (c) 2019, René Moser <mail@renemoser.net>
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import absolute_import, division, print_function
@ -18,32 +19,38 @@ DOCUMENTATION = '''
module: cloudscale_server
short_description: Manages servers on the cloudscale.ch IaaS service
description:
- Create, start, stop and delete servers on the cloudscale.ch IaaS service.
- Create, update, start, stop and delete servers on the cloudscale.ch IaaS service.
notes:
- To create a new server at least the C(name), C(ssh_key), C(image) and C(flavor) options are required.
- If more than one server with the name given by the C(name) option exists, execution is aborted.
- Once a server is created all parameters except C(state) are read-only. You can't change the name, flavor or any other property. This is a limitation
of the cloudscale.ch API. The module will silently ignore differences between the configured parameters and the running server if a server with the
correct name or UUID exists. Only state changes will be applied.
version_added: 2.3
author: "Gaudenz Steinlin (@gaudenz) <gaudenz.steinlin@cloudscale.ch>"
- Since version 2.8, I(uuid) and I(name) or not mututally exclusive anymore.
- If I(uuid) option is provided, it takes precedence over I(name) for server selection. This allows to update the server's name.
- If no I(uuid) option is provided, I(name) is used for server selection. If more than one server with this name exists, execution is aborted.
- Only the I(name) and I(flavor) are evaluated for the update.
- The option I(force=true) must be given to allow the reboot of existing running servers for applying the changes.
version_added: '2.3'
author:
- Gaudenz Steinlin (@gaudenz)
- René Moser (@resmo)
options:
state:
description:
- State of the server
default: running
- State of the server.
choices: [ running, stopped, absent ]
default: running
type: str
name:
description:
- Name of the Server.
- Either C(name) or C(uuid) are required. These options are mutually exclusive.
- Either I(name) or I(uuid) are required.
type: str
uuid:
description:
- UUID of the server.
- Either C(name) or C(uuid) are required. These options are mutually exclusive.
- Either I(name) or I(uuid) are required.
type: str
flavor:
description:
- Flavor of the server.
type: str
image:
description:
- Image used to create the server.
@ -51,46 +58,53 @@ options:
description:
- Size of the root volume in GB.
default: 10
type: int
bulk_volume_size_gb:
description:
- Size of the bulk storage volume in GB.
- No bulk storage volume if not set.
type: int
ssh_keys:
description:
- List of SSH public keys.
- Use the full content of your .pub file here.
type: list
use_public_network:
description:
- Attach a public network interface to the server.
default: True
default: yes
type: bool
use_private_network:
description:
- Attach a private network interface to the server.
default: False
default: no
type: bool
use_ipv6:
description:
- Enable IPv6 on the public network interface.
default: True
default: yes
type: bool
anti_affinity_with:
description:
- UUID of another server to create an anti-affinity group with.
type: str
user_data:
description:
- Cloud-init configuration (cloud-config) data to use for the server.
type: str
api_timeout:
version_added: '2.5'
force:
description:
- Timeout in seconds for calls to the cloudscale.ch API.
default: 30
version_added: "2.5"
- Allow to stop the running server for updating if necessary.
default: no
type: bool
version_added: '2.8'
extends_documentation_fragment: cloudscale
'''
EXAMPLES = '''
# Start a server (if it does not exist) and register the server details
- name: Start cloudscale.ch server
cloudscale_server:
name: my-shiny-cloudscale-server
@ -112,6 +126,19 @@ EXAMPLES = '''
anti_affinity_with: '{{ server1.uuid }}'
api_token: xxxxxx
# Force to update the flavor of a running server
- name: Start cloudscale.ch server
cloudscale_server:
name: my-shiny-cloudscale-server
image: debian-8
flavor: flex-8
force: yes
ssh_keys: ssh-rsa XXXXXXXXXX...XXXX ansible@cloudscale
use_private_network: True
bulk_volume_size_gb: 100
api_token: xxxxxx
register: server1
# Stop the first server
- name: Stop my first server
cloudscale_server:
@ -135,7 +162,7 @@ EXAMPLES = '''
ssh_keys: ssh-rsa XXXXXXXXXXX ansible@cloudscale
api_token: xxxxxx
register: server
until: server.ssh_fingerprints
until: server.ssh_fingerprints is defined and server.ssh_fingerprints
retries: 60
delay: 2
'''
@ -198,7 +225,6 @@ anti_affinity_with:
sample: []
'''
import os
from datetime import datetime, timedelta
from time import sleep
from copy import deepcopy
@ -217,31 +243,44 @@ class AnsibleCloudscaleServer(AnsibleCloudscaleBase):
def __init__(self, module):
super(AnsibleCloudscaleServer, self).__init__(module)
# Check if server already exists and load properties
uuid = self._module.params['uuid']
name = self._module.params['name']
# Initialize server dictionary
self.info = {'uuid': uuid, 'name': name, 'state': 'absent'}
self._info = {}
def _init_server_container(self):
return {
'uuid': self._module.params.get('uuid') or self._info.get('uuid'),
'name': self._module.params.get('name') or self._info.get('name'),
'state': 'absent',
}
def _get_server_info(self, refresh=False):
if self._info and not refresh:
return self._info
self._info = self._init_server_container()
uuid = self._info.get('uuid')
if uuid is not None:
server_info = self._get('servers/%s' % uuid)
if server_info:
self._info = self._transform_state(server_info)
servers = self.list_servers()
matching_server = []
for s in servers:
if uuid:
# Look for server by UUID if given
if s['uuid'] == uuid:
self.info = self._transform_state(s)
break
else:
# Look for server by name
if s['name'] == name:
matching_server.append(s)
else:
if len(matching_server) == 1:
self.info = self._transform_state(matching_server[0])
elif len(matching_server) > 1:
self._module.fail_json(msg="More than one server with name '%s' exists. "
"Use the 'uuid' parameter to identify the server." % name)
name = self._info.get('name')
if name is not None:
servers = self._get('servers') or []
matching_server = []
for server in servers:
if server['name'] == name:
matching_server.append(server)
if len(matching_server) == 1:
self._info = self._transform_state(matching_server[0])
elif len(matching_server) > 1:
self._module.fail_json(msg="More than one server with name '%s' exists. "
"Use the 'uuid' parameter to identify the server." % name)
return self._info
@staticmethod
def _transform_state(server):
@ -252,80 +291,153 @@ class AnsibleCloudscaleServer(AnsibleCloudscaleBase):
server['state'] = 'absent'
return server
def update_info(self):
# If we don't have a UUID (yet) there is nothing to update
if 'uuid' not in self.info:
return
url_path = 'servers/' + self.info['uuid']
resp = self._get(url_path)
if resp:
self.info = self._transform_state(resp)
else:
self.info = {'uuid': self.info['uuid'],
'name': self.info.get('name', None),
'state': 'absent'}
def wait_for_state(self, states):
def _wait_for_state(self, states):
start = datetime.now()
timeout = self._module.params['api_timeout'] * 2
while datetime.now() - start < timedelta(seconds=timeout):
self.update_info()
if self.info['state'] in states:
return True
server_info = self._get_server_info(refresh=True)
if server_info.get('state') in states:
return server_info
sleep(1)
self._module.fail_json(msg='Timeout while waiting for a state change on server %s to states %s. Current state is %s.'
% (self.info['name'], states, self.info['state']))
# Timeout succeeded
if server_info.get('name') is not None:
msg = "Timeout while waiting for a state change on server %s to states %s. " \
"Current state is %s." % (server_info.get('name'), states, server_info.get('state'))
else:
name_uuid = self._module.params.get('name') or self._module.params.get('uuid')
msg = 'Timeout while waiting to find the server %s' % name_uuid
def create_server(self):
data = self._module.params.copy()
self._module.fail_json(msg=msg)
# check for required parameters to create a server
missing_parameters = []
for p in ('name', 'ssh_keys', 'image', 'flavor'):
if p not in data or not data[p]:
missing_parameters.append(p)
def _start_stop_server(self, server_info, target_state="running", ignore_diff=False):
actions = {
'stopped': 'stop',
'running': 'start',
}
if len(missing_parameters) > 0:
self._module.fail_json(msg='Missing required parameter(s) to create a new server: %s.' %
' '.join(missing_parameters))
server_state = server_info.get('state')
if server_state != target_state:
self._result['changed'] = True
# Deepcopy: Duplicate the data object for iteration, because
# iterating an object and changing it at the same time is insecure
if not ignore_diff:
self._result['diff']['before'].update({
'state': server_info.get('state'),
})
self._result['diff']['after'].update({
'state': target_state,
})
if not self._module.check_mode:
self._post('servers/%s/%s' % (server_info['uuid'], actions[target_state]))
server_info = self._wait_for_state((target_state, ))
# Sanitize data dictionary
for k, v in deepcopy(data).items():
return server_info
# Remove items not relevant to the create server call
if k in ('api_token', 'api_timeout', 'uuid', 'state'):
del data[k]
continue
def _update_param(self, param_key, server_info, requires_stop=False):
param_value = self._module.params.get(param_key)
if param_value is None:
return server_info
# Remove None values, these don't get correctly translated by urlencode
if v is None:
del data[k]
continue
if 'slug' in server_info[param_key]:
server_v = server_info[param_key]['slug']
else:
server_v = server_info[param_key]
self.info = self._transform_state(self._post('servers', data))
self.wait_for_state(('running', ))
if server_v != param_value:
# Set the diff output
self._result['diff']['before'].update({param_key: server_v})
self._result['diff']['after'].update({param_key: param_value})
def delete_server(self):
self._delete('servers/%s' % self.info['uuid'])
self.wait_for_state(('absent', ))
if server_info.get('state') == "running":
if requires_stop and not self._module.params.get('force'):
self._module.warn("Some changes won't be applied to running servers. "
"Use force=yes to allow the server '%s' to be stopped/started." % server_info['name'])
return server_info
def start_server(self):
self._post('servers/%s/start' % self.info['uuid'])
self.wait_for_state(('running', ))
# Either the server is stopped or change is forced
self._result['changed'] = True
if not self._module.check_mode:
def stop_server(self):
self._post('servers/%s/stop' % self.info['uuid'])
self.wait_for_state(('stopped', ))
if requires_stop:
self._start_stop_server(server_info, target_state="stopped", ignore_diff=True)
def list_servers(self):
return self._get('servers') or []
patch_data = {
param_key: param_value,
}
# Response is 204: No Content
self._patch('servers/%s' % server_info['uuid'], patch_data)
# State changes to "changing" after update, waiting for stopped/running
server_info = self._wait_for_state(('stopped', 'running'))
return server_info
def _create_server(self, server_info):
self._result['changed'] = True
required_params = ('name', 'ssh_keys', 'image', 'flavor')
self._module.fail_on_missing_params(required_params)
params = self._module.params
data = {
'name': params['name'],
'image': params['image'],
'flavor': params['flavor'],
'volume_size_gb': params['volume_size_gb'],
'bulk_volume_size_gb': params['bulk_volume_size_gb'],
'ssh_keys': params['ssh_keys'],
'use_public_network': params['use_public_network'],
'use_ipv6': params['use_ipv6'],
'anti_affinity_with': params['anti_affinity_with'],
'user_data': params['user_data'],
}
self._result['diff']['before'] = self._init_server_container()
self._result['diff']['after'] = deepcopy(data)
if not self._module.check_mode:
self._post('servers', data)
server_info = self._wait_for_state(('running', ))
return server_info
def _update_server(self, server_info):
previous_state = server_info.get('state')
server_info = self._update_param('flavor', server_info, requires_stop=True)
server_info = self._update_param('name', server_info)
if previous_state == "running":
server_info = self._start_stop_server(server_info, target_state="running", ignore_diff=True)
return server_info
def present_server(self):
server_info = self._get_server_info()
if server_info.get('state') != "absent":
# If target state is stopped, stop before an potential update and force would not be required
if self._module.params.get('state') == "stopped":
server_info = self._start_stop_server(server_info, target_state="stopped")
server_info = self._update_server(server_info)
if self._module.params.get('state') == "running":
server_info = self._start_stop_server(server_info, target_state="running")
else:
server_info = self._create_server(server_info)
server_info = self._start_stop_server(server_info, target_state=self._module.params.get('state'))
return server_info
def absent_server(self):
server_info = self._get_server_info()
if server_info.get('state') != "absent":
self._result['changed'] = True
self._result['diff']['before'] = deepcopy(server_info)
self._result['diff']['after'] = self._init_server_container()
if not self._module.check_mode:
self._delete('servers/%s' % server_info['uuid'])
server_info = self._wait_for_state(('absent', ))
return server_info
def main():
@ -344,47 +456,23 @@ def main():
use_ipv6=dict(type='bool', default=True),
anti_affinity_with=dict(),
user_data=dict(),
force=dict(type='bool', default=False)
))
module = AnsibleModule(
argument_spec=argument_spec,
required_one_of=(('name', 'uuid'),),
mutually_exclusive=(('name', 'uuid'),),
supports_check_mode=True,
)
target_state = module.params['state']
server = AnsibleCloudscaleServer(module)
# The server could be in a changing or error state.
# Wait for one of the allowed states before doing anything.
# If an allowed state can't be reached, this module fails.
if server.info['state'] not in ALLOWED_STATES:
server.wait_for_state(ALLOWED_STATES)
current_state = server.info['state']
cloudscale_server = AnsibleCloudscaleServer(module)
if module.params['state'] == "absent":
server = cloudscale_server.absent_server()
else:
server = cloudscale_server.present_server()
if module.check_mode:
module.exit_json(changed=not target_state == current_state,
**server.info)
changed = False
if current_state == 'absent' and target_state == 'running':
server.create_server()
changed = True
elif current_state == 'absent' and target_state == 'stopped':
server.create_server()
server.stop_server()
changed = True
elif current_state == 'stopped' and target_state == 'running':
server.start_server()
changed = True
elif current_state in ('running', 'stopped') and target_state == 'absent':
server.delete_server()
changed = True
elif current_state == 'running' and target_state == 'stopped':
server.stop_server()
changed = True
module.exit_json(changed=changed, **server.info)
result = cloudscale_server.get_result(server)
module.exit_json(**result)
if __name__ == '__main__':

2
test/integration/targets/cloudscale_server/defaults/main.yml Normal file
View file

@ -0,0 +1,2 @@
---
cloudscale_test_flavor_2: flex-4

208
test/integration/targets/cloudscale_server/tasks/main.yml
View file

@ -39,6 +39,153 @@
- server is not changed
- server.state == 'running'
- name: Test update flavor of a running server without force in check mode
cloudscale_server:
name: '{{ cloudscale_resource_prefix }}-test'
flavor: '{{ cloudscale_test_flavor_2 }}'
image: '{{ cloudscale_test_image }}'
ssh_keys: '{{ cloudscale_test_ssh_key }}'
force: no
register: server
check_mode: yes
- name: Verify update flavor of a running server without force in check mode
assert:
that:
- server is not changed
- server.state == 'running'
- server.flavor.slug == '{{ cloudscale_test_flavor }}'
- name: Test update flavor of a running server without force
cloudscale_server:
name: '{{ cloudscale_resource_prefix }}-test'
flavor: '{{ cloudscale_test_flavor_2 }}'
image: '{{ cloudscale_test_image }}'
ssh_keys: '{{ cloudscale_test_ssh_key }}'
force: no
register: server
- name: Verify update flavor of a running server without force
assert:
that:
- server is not changed
- server.state == 'running'
- server.flavor.slug == '{{ cloudscale_test_flavor }}'
- name: Test update flavor of a running server without force idempotence
cloudscale_server:
name: '{{ cloudscale_resource_prefix }}-test'
flavor: '{{ cloudscale_test_flavor_2 }}'
image: '{{ cloudscale_test_image }}'
ssh_keys: '{{ cloudscale_test_ssh_key }}'
force: no
register: server
- name: Verify update flavor of a running server without force idempotence
assert:
that:
- server is not changed
- server.state == 'running'
- server.flavor.slug == '{{ cloudscale_test_flavor }}'
- name: Test update flavor and name of a running server without force in check mode
cloudscale_server:
uuid: '{{ server.uuid }}'
name: '{{ cloudscale_resource_prefix }}-test-renamed'
flavor: '{{ cloudscale_test_flavor_2 }}'
image: '{{ cloudscale_test_image }}'
ssh_keys: '{{ cloudscale_test_ssh_key }}'
force: no
register: server
check_mode: yes
- name: Verify update flavor and name of a running server without force in check mode
assert:
that:
- server is changed
- server.state == 'running'
- server.flavor.slug == '{{ cloudscale_test_flavor }}'
- server.name == '{{ cloudscale_resource_prefix }}-test'
- name: Test update flavor and name of a running server without force
cloudscale_server:
uuid: '{{ server.uuid }}'
name: '{{ cloudscale_resource_prefix }}-test-renamed'
flavor: '{{ cloudscale_test_flavor_2 }}'
image: '{{ cloudscale_test_image }}'
ssh_keys: '{{ cloudscale_test_ssh_key }}'
force: no
register: server
- name: Verify update flavor and name of a running server without force
assert:
that:
- server is changed
- server.state == 'running'
- server.flavor.slug == '{{ cloudscale_test_flavor }}'
- server.name == '{{ cloudscale_resource_prefix }}-test-renamed'
- name: Test update flavor and name of a running server without force idempotence
cloudscale_server:
uuid: '{{ server.uuid }}'
name: '{{ cloudscale_resource_prefix }}-test-renamed'
flavor: '{{ cloudscale_test_flavor_2 }}'
image: '{{ cloudscale_test_image }}'
ssh_keys: '{{ cloudscale_test_ssh_key }}'
force: no
register: server
- name: Verify update flavor and name of a running server without force idempotence
assert:
that:
- server is not changed
- server.state == 'running'
- server.flavor.slug == '{{ cloudscale_test_flavor }}'
- server.name == '{{ cloudscale_resource_prefix }}-test-renamed'
- name: Test update flavor of a running server with force in check mode
cloudscale_server:
name: '{{ cloudscale_resource_prefix }}-test-renamed'
flavor: '{{ cloudscale_test_flavor_2 }}'
image: '{{ cloudscale_test_image }}'
ssh_keys: '{{ cloudscale_test_ssh_key }}'
force: yes
register: server
check_mode: yes
- name: Verify update flavor of a running server with force in check mode
assert:
that:
- server is changed
- server.state == 'running'
- server.flavor.slug == '{{ cloudscale_test_flavor }}'
- server.name == '{{ cloudscale_resource_prefix }}-test-renamed'
- name: Test update flavor of a running server with force
cloudscale_server:
name: '{{ cloudscale_resource_prefix }}-test-renamed'
flavor: '{{ cloudscale_test_flavor_2 }}'
image: '{{ cloudscale_test_image }}'
ssh_keys: '{{ cloudscale_test_ssh_key }}'
force: yes
register: server
- name: Verify update flavor of a running server with force
assert:
that:
- server is changed
- server.state == 'running'
- server.flavor.slug == '{{ cloudscale_test_flavor_2 }}'
- server.name == '{{ cloudscale_resource_prefix }}-test-renamed'
- name: Test update a running server with force idempotence
cloudscale_server:
name: '{{ cloudscale_resource_prefix }}-test-renamed'
flavor: '{{ cloudscale_test_flavor_2 }}'
image: '{{ cloudscale_test_image }}'
ssh_keys: '{{ cloudscale_test_ssh_key }}'
force: yes
register: server
- name: Verify update flavor of a running server with force idempotence
assert:
that:
- server is not changed
- server.state == 'running'
- server.flavor.slug == '{{ cloudscale_test_flavor_2 }}'
- server.name == '{{ cloudscale_resource_prefix }}-test-renamed'
- name: Test create server stopped in check mode
cloudscale_server:
name: '{{ cloudscale_resource_prefix }}-test-stopped'
@ -91,11 +238,11 @@
assert:
that:
- server_failed is failed
- "'Missing required parameter(s)' in server_failed.msg"
- "'missing required arguments' in server_failed.msg"
- name: Test stop running server in check mode
cloudscale_server:
name: '{{ cloudscale_resource_prefix }}-test'
name: '{{ cloudscale_resource_prefix }}-test-renamed'
state: stopped
check_mode: yes
register: server
@ -107,7 +254,7 @@
- name: Test stop running server
cloudscale_server:
name: '{{ cloudscale_resource_prefix }}-test'
name: '{{ cloudscale_resource_prefix }}-test-renamed'
state: stopped
register: server
- name: Verify stop running server
@ -118,7 +265,7 @@
- name: Test stop running server idempotence
cloudscale_server:
name: '{{ cloudscale_resource_prefix }}-test'
name: '{{ cloudscale_resource_prefix }}-test-renamed'
state: 'stopped'
register: server
- name: Verify stop running server idempotence
@ -127,6 +274,59 @@
- server is not changed
- server.state == 'stopped'
- name: Test update a stopped server in check mode
cloudscale_server:
uuid: '{{ server.uuid }}'
name: '{{ cloudscale_resource_prefix }}-test'
flavor: '{{ cloudscale_test_flavor }}'
image: '{{ cloudscale_test_image }}'
ssh_keys: '{{ cloudscale_test_ssh_key }}'
state: stopped
register: server
check_mode: yes
- name: Verify update a stopped server in check mode
assert:
that:
- server is changed
- server.state == 'stopped'
- server.flavor.slug == '{{ cloudscale_test_flavor_2 }}'
- server.name == '{{ cloudscale_resource_prefix }}-test-renamed'
- name: Test update a stopped server without force
cloudscale_server:
uuid: '{{ server.uuid }}'
name: '{{ cloudscale_resource_prefix }}-test'
flavor: '{{ cloudscale_test_flavor }}'
image: '{{ cloudscale_test_image }}'
ssh_keys: '{{ cloudscale_test_ssh_key }}'
state: stopped
register: server
- name: Verify update a stopped server without force
assert:
that:
- server is changed
- server.state == 'stopped'
- server.flavor.slug == '{{ cloudscale_test_flavor }}'
- server.name == '{{ cloudscale_resource_prefix }}-test'
- name: Test update a stopped server idempotence
cloudscale_server:
uuid: '{{ server.uuid }}'
name: '{{ cloudscale_resource_prefix }}-test'
flavor: '{{ cloudscale_test_flavor }}'
image: '{{ cloudscale_test_image }}'
ssh_keys: '{{ cloudscale_test_ssh_key }}'
state: stopped
register: server
- name: Verify update a stopped server idempotence
assert:
that:
- server is not changed
- server.state == 'stopped'
- server.flavor.slug == '{{ cloudscale_test_flavor }}'
- server.name == '{{ cloudscale_resource_prefix }}-test'
- name: Test server running in check mode
cloudscale_server:
name: '{{ cloudscale_resource_prefix }}-test'