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Add kubevirt_template module (#52528)

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Co-Authored-By: machacekondra <machacek.ondra@gmail.com>
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Ondra Machacek 2019-02-26 12:54:49 +01:00 committed by Abhijeet Kasurde
parent 42ae6cdb95
commit 84cc5202db
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lib/ansible/modules/cloud/kubevirt/kubevirt_template.py Normal file
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#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright: (c) 2019, Ansible Project
# 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
__metaclass__ = type
ANSIBLE_METADATA = {'metadata_version': '1.1',
'status': ['preview'],
'supported_by': 'community'}
DOCUMENTATION = '''
---
module: kubevirt_template
short_description: Manage KubeVirt templates
description:
- Use Openshift Python SDK to manage the state of KubeVirt templates.
version_added: "2.8"
author: KubeVirt Team (@kubevirt)
options:
objects:
description:
- List of any valid API objects, such as a I(DeploymentConfig), I(Service), etc. The object
will be created exactly as defined here, with any parameter values substituted in prior to creation.
The definition of these objects can reference parameters defined earlier.
- As part of the the list user can pass also I(VirtualMachine) kind. When passing I(VirtualMachine)
user must use Ansible structure of the parameters not the Kubernetes API structure. For more information
please take a look at M(kubevirt_vm) module and at EXAMPLES section, where you can see example.
type: list
display_name:
description:
- "A brief, user-friendly name, which can be employed by user interfaces."
type: str
description:
description:
- A description of the template.
- Include enough detail that the user will understand what is being deployed...
and any caveats they need to know before deploying. It should also provide links to additional information,
such as a README file."
type: str
long_description:
description:
- "Additional template description. This may be displayed by the service catalog, for example."
type: str
provider_display_name:
description:
- "The name of the person or organization providing the template."
type: str
documentation_url:
description:
- "A URL referencing further documentation for the template."
type: str
support_url:
description:
- "A URL where support can be obtained for the template."
type: str
editable:
description:
- "Extension for hinting at which elements should be considered editable.
List of jsonpath selectors. The jsonpath root is the objects: element of the template."
- This is parameter can be used only when kubevirt addon is installed on your openshift cluster.
type: list
default_disk:
description:
- "The goal of default disk is to define what kind of disk is supported by the OS mainly in
terms of bus (ide, scsi, sata, virtio, ...)"
- The C(default_disk) parameter define configuration overlay for disks that will be applied on top of disks
during virtual machine creation to define global compatibility and/or performance defaults defined here.
- This is parameter can be used only when kubevirt addon is installed on your openshift cluster.
type: dict
default_volume:
description:
- "The goal of default volume is to be able to configure mostly performance parameters like
caches if those are exposed by the underlying volume implementation."
- The C(default_volume) parameter define configuration overlay for volumes that will be applied on top of volumes
during virtual machine creation to define global compatibility and/or performance defaults defined here.
- This is parameter can be used only when kubevirt addon is installed on your openshift cluster.
type: dict
default_nic:
description:
- "The goal of default network is similar to I(default_disk) and should be used as a template
to ensure OS compatibility and performance."
- The C(default_nic) parameter define configuration overlay for nic that will be applied on top of nics
during virtual machine creation to define global compatibility and/or performance defaults defined here.
- This is parameter can be used only when kubevirt addon is installed on your openshift cluster.
type: dict
default_network:
description:
- "The goal of default network is similar to I(default_volume) and should be used as a template
that specifies performance and connection parameters (L2 bridge for example)"
- The C(default_network) parameter define configuration overlay for networks that will be applied on top of networks
during virtual machine creation to define global compatibility and/or performance defaults defined here.
- This is parameter can be used only when kubevirt addon is installed on your openshift cluster.
type: dict
icon_class:
description:
- "An icon to be displayed with your template in the web console. Choose from our existing logo
icons when possible. You can also use icons from FontAwesome. Alternatively, provide icons through
CSS customizations that can be added to an OpenShift Container Platform cluster that uses your template.
You must specify an icon class that exists, or it will prevent falling back to the generic icon."
type: str
parameters:
description:
- "Parameters allow a value to be supplied by the user or generated when the template is instantiated.
Then, that value is substituted wherever the parameter is referenced. References can be defined in any
field in the objects list field. This is useful for generating random passwords or allowing the user to
supply a host name or other user-specific value that is required to customize the template."
- "More information can be foud at: U(https://docs.openshift.com/container-platform/3.6/dev_guide/templates.html#writing-parameters)"
type: list
version:
description:
- Template structure version.
- This is parameter can be used only when kubevirt addon is installed on your openshift cluster.
type: str
extends_documentation_fragment:
- k8s_auth_options
- k8s_resource_options
- k8s_state_options
- k8s_name_options
requirements:
- python >= 2.7
- openshift >= 0.8.2
'''
EXAMPLES = '''
- name: Create template 'mytemplate'
kubevirt_template:
state: present
name: myvmtemplate
namespace: templates
display_name: Generic cirros template
description: Basic cirros template
long_description: Verbose description of cirros template
provider_display_name: Just Be Cool, Inc.
documentation_url: http://theverycoolcompany.com
support_url: http://support.theverycoolcompany.com
icon_class: icon-linux
default_disk:
disk:
bus: virtio
default_nic:
model: virtio
default_network:
resource:
resourceName: bridge.network.kubevirt.io/cnvmgmt
default_volume:
containerDisk:
image: kubevirt/cirros-container-disk-demo:latest
objects:
- name: ${NAME}
kind: VirtualMachine
memory: ${MEMORY_SIZE}Mi
state: present
namespace: vms
parameters:
- name: NAME
description: VM name
generate: expression
from: 'vm-[A-Za-z0-9]{8}'
- name: MEMORY_SIZE
description: Memory size
value: 1Gi
- name: Remove template 'myvmtemplate'
kubevirt_template:
state: absent
name: myvmtemplate
namespace: templates
'''
RETURN = '''
kubevirt_template:
description:
- The template dictionary specification returned by the API.
returned: success
type: complex
contains: {}
'''
import copy
import traceback
from ansible.module_utils.k8s.common import AUTH_ARG_SPEC, COMMON_ARG_SPEC
from ansible.module_utils.kubevirt import (
virtdict,
KubeVirtRawModule,
MAX_SUPPORTED_API_VERSION
)
TEMPLATE_ARG_SPEC = {
'state': {
'type': 'str',
'choices': [
'present', 'absent'
],
'default': 'present'
},
'objects': {
'type': 'list',
},
'display_name': {
'type': 'str',
},
'description': {
'type': 'str',
},
'long_description': {
'type': 'str',
},
'provider_display_name': {
'type': 'str',
},
'documentation_url': {
'type': 'str',
},
'support_url': {
'type': 'str',
},
'icon_class': {
'type': 'str',
},
'version': {
'type': 'str',
},
'editable': {
'type': 'list',
},
'default_disk': {
'type': 'dict',
},
'default_volume': {
'type': 'dict',
},
'default_network': {
'type': 'dict',
},
'default_nic': {
'type': 'dict',
},
'parameters': {
'type': 'list',
},
}
class KubeVirtVMTemplate(KubeVirtRawModule):
@property
def argspec(self):
""" argspec property builder """
argument_spec = copy.deepcopy(COMMON_ARG_SPEC)
argument_spec.update(copy.deepcopy(AUTH_ARG_SPEC))
argument_spec.update(TEMPLATE_ARG_SPEC)
return argument_spec
def execute_module(self):
# Parse parameters specific for this module:
definition = virtdict()
# Execute the CRUD of VM template:
kind = 'Template'
# Fill in template parameters:
definition['parameters'] = self.params.get('parameters')
# Fill in Openshift/Kubevirt template annotations:
annotations = definition['metadata']['annotations']
if self.params.get('display_name'):
annotations['openshift.io/display-name'] = self.params.get('display_name')
if self.params.get('description'):
annotations['description'] = self.params.get('description')
if self.params.get('long_description'):
annotations['openshift.io/long-description'] = self.params.get('long_description')
if self.params.get('provider_display_name'):
annotations['openshift.io/provider-display-name'] = self.params.get('provider_display_name')
if self.params.get('documentation_url'):
annotations['openshift.io/documentation-url'] = self.params.get('documentation_url')
if self.params.get('support_url'):
annotations['openshift.io/support-url'] = self.params.get('support_url')
if self.params.get('icon_class'):
annotations['iconClass'] = self.params.get('icon_class')
if self.params.get('version'):
annotations['template.cnv.io/version'] = self.params.get('version')
# TODO: Make it more Ansiblish, so user don't have to specify API JSON path, but rather Ansible params:
if self.params.get('editable'):
annotations['template.cnv.io/editable'] = self.params.get('editable')
# Set defaults annotations:
if self.params.get('default_disk'):
annotations['defaults.template.cnv.io/disk'] = self.params.get('default_disk').get('name')
if self.params.get('default_volume'):
annotations['defaults.template.cnv.io/volume'] = self.params.get('default_volume').get('name')
if self.params.get('default_nic'):
annotations['defaults.template.cnv.io/nic'] = self.params.get('default_nic').get('name')
if self.params.get('default_network'):
annotations['defaults.template.cnv.io/network'] = self.params.get('default_network').get('name')
# Proccess objects:
self.client = self.get_api_client()
definition['objects'] = []
objects = self.params.get('objects') or []
for obj in objects:
if obj['kind'] != 'VirtualMachine':
definition['objects'].append(obj)
else:
vm_definition = virtdict()
# Set VM defaults:
if self.params.get('default_disk'):
vm_definition['spec']['template']['spec']['domain']['devices']['disks'] = [self.params.get('default_disk')]
if self.params.get('default_volume'):
vm_definition['spec']['template']['spec']['volumes'] = [self.params.get('default_volume')]
if self.params.get('default_nic'):
vm_definition['spec']['template']['spec']['domain']['devices']['interfaces'] = [self.params.get('default_nic')]
if self.params.get('default_network'):
vm_definition['spec']['template']['spec']['networks'] = [self.params.get('default_network')]
# Set kubevirt API version:
vm_definition['apiVersion'] = MAX_SUPPORTED_API_VERSION
# Contruct k8s vm API object:
vm_template = vm_definition['spec']['template']
dummy, vm_def = self.construct_vm_template_definition('VirtualMachine', vm_definition, vm_template, obj)
definition['objects'].append(vm_def)
result = self.execute_crud(kind, definition)
# Return from the module:
self.exit_json(**{
'changed': result['changed'],
'kubevirt_template': result.pop('result'),
'result': result,
})
def main():
module = KubeVirtVMTemplate()
try:
module.execute_module()
except Exception as e:
module.fail_json(msg=str(e), exception=traceback.format_exc())
if __name__ == '__main__':
main()