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255 lines
11 KiB
Python
255 lines
11 KiB
Python
# Copyright (c) 2018 Ansible Project
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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DOCUMENTATION = '''
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name: kubevirt
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plugin_type: inventory
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author:
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- KubeVirt Team (@kubevirt)
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short_description: KubeVirt inventory source
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extends_documentation_fragment:
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- inventory_cache
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- constructed
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description:
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- Fetch running VirtualMachines for one or more namespaces.
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- Groups by namespace, namespace_vms and labels.
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- Uses kubevirt.(yml|yaml) YAML configuration file to set parameter values.
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options:
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plugin:
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description: token that ensures this is a source file for the 'kubevirt' plugin.
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required: True
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choices: ['kubevirt']
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type: str
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host_format:
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description:
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- Specify the format of the host in the inventory group.
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default: "{namespace}-{name}-{uid}"
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connections:
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type: list
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description:
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- Optional list of cluster connection settings. If no connections are provided, the default
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I(~/.kube/config) and active context will be used, and objects will be returned for all namespaces
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the active user is authorized to access.
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suboptions:
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name:
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description:
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- Optional name to assign to the cluster. If not provided, a name is constructed from the server
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and port.
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type: str
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kubeconfig:
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description:
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- Path to an existing Kubernetes config file. If not provided, and no other connection
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options are provided, the OpenShift client will attempt to load the default
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configuration file from I(~/.kube/config.json). Can also be specified via K8S_AUTH_KUBECONFIG
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environment variable.
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type: str
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context:
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description:
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- The name of a context found in the config file. Can also be specified via K8S_AUTH_CONTEXT environment
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variable.
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type: str
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host:
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description:
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- Provide a URL for accessing the API. Can also be specified via K8S_AUTH_HOST environment variable.
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type: str
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api_key:
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description:
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- Token used to authenticate with the API. Can also be specified via K8S_AUTH_API_KEY environment
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variable.
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type: str
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username:
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description:
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- Provide a username for authenticating with the API. Can also be specified via K8S_AUTH_USERNAME
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environment variable.
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type: str
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password:
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description:
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- Provide a password for authenticating with the API. Can also be specified via K8S_AUTH_PASSWORD
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environment variable.
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type: str
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cert_file:
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description:
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- Path to a certificate used to authenticate with the API. Can also be specified via K8S_AUTH_CERT_FILE
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environment variable.
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type: str
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key_file:
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description:
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- Path to a key file used to authenticate with the API. Can also be specified via K8S_AUTH_HOST
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environment variable.
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type: str
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ssl_ca_cert:
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description:
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- Path to a CA certificate used to authenticate with the API. Can also be specified via
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K8S_AUTH_SSL_CA_CERT environment variable.
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type: str
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verify_ssl:
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description:
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- "Whether or not to verify the API server's SSL certificates. Can also be specified via
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K8S_AUTH_VERIFY_SSL environment variable."
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type: bool
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namespaces:
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description:
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- List of namespaces. If not specified, will fetch all virtual machines for all namespaces user is authorized
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to access.
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type: list
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network_name:
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description:
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- In case of multiple network attached to virtual machine, define which interface should be returned as primary IP
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address.
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type: str
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api_version:
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description:
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- "Specify the KubeVirt API version."
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type: str
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annotation_variable:
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description:
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- "Specify the name of the annotation which provides data, which should be used as inventory host variables."
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- "Note, that the value in ansible annotations should be json."
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type: str
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default: 'ansible'
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requirements:
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- "openshift >= 0.6"
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- "PyYAML >= 3.11"
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'''
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EXAMPLES = '''
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# File must be named kubevirt.yaml or kubevirt.yml
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# Authenticate with token, and return all virtual machines for all namespaces
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plugin: kubevirt
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connections:
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- host: https://kubevirt.io
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token: xxxxxxxxxxxxxxxx
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ssl_verify: false
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# Use default config (~/.kube/config) file and active context, and return vms with interfaces
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# connected to network myovsnetwork and from namespace vms
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plugin: kubevirt
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connections:
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- namespaces:
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- vms
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network_name: myovsnetwork
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'''
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import json
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from ansible_collections.community.kubernetes.plugins.inventory.k8s import K8sInventoryException, InventoryModule as K8sInventoryModule, format_dynamic_api_exc
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try:
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from openshift.dynamic.exceptions import DynamicApiError
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except ImportError:
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pass
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API_VERSION = 'kubevirt.io/v1alpha3'
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class InventoryModule(K8sInventoryModule):
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NAME = 'community.general.kubevirt'
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def setup(self, config_data, cache, cache_key):
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self.config_data = config_data
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super(InventoryModule, self).setup(config_data, cache, cache_key)
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def fetch_objects(self, connections):
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client = self.get_api_client()
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vm_format = self.config_data.get('host_format', '{namespace}-{name}-{uid}')
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if connections:
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for connection in connections:
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client = self.get_api_client(**connection)
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name = connection.get('name', self.get_default_host_name(client.configuration.host))
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if connection.get('namespaces'):
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namespaces = connection['namespaces']
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else:
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namespaces = self.get_available_namespaces(client)
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interface_name = connection.get('network_name')
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api_version = connection.get('api_version', API_VERSION)
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annotation_variable = connection.get('annotation_variable', 'ansible')
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for namespace in namespaces:
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self.get_vms_for_namespace(client, name, namespace, vm_format, interface_name, api_version, annotation_variable)
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else:
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name = self.get_default_host_name(client.configuration.host)
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namespaces = self.get_available_namespaces(client)
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for namespace in namespaces:
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self.get_vms_for_namespace(client, name, namespace, vm_format, None, api_version, annotation_variable)
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def get_vms_for_namespace(self, client, name, namespace, name_format, interface_name=None, api_version=None, annotation_variable=None):
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v1_vm = client.resources.get(api_version=api_version, kind='VirtualMachineInstance')
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try:
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obj = v1_vm.get(namespace=namespace)
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except DynamicApiError as exc:
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self.display.debug(exc)
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raise K8sInventoryException('Error fetching Virtual Machines list: %s' % format_dynamic_api_exc(exc))
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namespace_group = 'namespace_{0}'.format(namespace)
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namespace_vms_group = '{0}_vms'.format(namespace_group)
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name = self._sanitize_group_name(name)
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namespace_group = self._sanitize_group_name(namespace_group)
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namespace_vms_group = self._sanitize_group_name(namespace_vms_group)
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self.inventory.add_group(name)
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self.inventory.add_group(namespace_group)
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self.inventory.add_child(name, namespace_group)
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self.inventory.add_group(namespace_vms_group)
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self.inventory.add_child(namespace_group, namespace_vms_group)
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for vm in obj.items:
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if not (vm.status and vm.status.interfaces):
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continue
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# Find interface by its name:
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if interface_name is None:
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interface = vm.status.interfaces[0]
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else:
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interface = next(
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(i for i in vm.status.interfaces if i.name == interface_name),
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None
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)
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# If interface is not found or IP address is not reported skip this VM:
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if interface is None or interface.ipAddress is None:
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continue
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vm_name = name_format.format(namespace=vm.metadata.namespace, name=vm.metadata.name, uid=vm.metadata.uid)
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vm_ip = interface.ipAddress
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vm_annotations = {} if not vm.metadata.annotations else dict(vm.metadata.annotations)
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self.inventory.add_host(vm_name)
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if vm.metadata.labels:
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# create a group for each label_value
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for key, value in vm.metadata.labels:
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group_name = 'label_{0}_{1}'.format(key, value)
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group_name = self._sanitize_group_name(group_name)
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self.inventory.add_group(group_name)
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self.inventory.add_child(group_name, vm_name)
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vm_labels = dict(vm.metadata.labels)
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else:
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vm_labels = {}
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self.inventory.add_child(namespace_vms_group, vm_name)
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# add hostvars
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self.inventory.set_variable(vm_name, 'ansible_host', vm_ip)
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self.inventory.set_variable(vm_name, 'labels', vm_labels)
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self.inventory.set_variable(vm_name, 'annotations', vm_annotations)
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self.inventory.set_variable(vm_name, 'object_type', 'vm')
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self.inventory.set_variable(vm_name, 'resource_version', vm.metadata.resourceVersion)
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self.inventory.set_variable(vm_name, 'uid', vm.metadata.uid)
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# Add all variables which are listed in 'ansible' annotation:
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annotations_data = json.loads(vm_annotations.get(annotation_variable, "{}"))
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for k, v in annotations_data.items():
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self.inventory.set_variable(vm_name, k, v)
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def verify_file(self, path):
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if super(InventoryModule, self).verify_file(path):
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if path.endswith(('kubevirt.yml', 'kubevirt.yaml')):
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return True
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return False
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