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offline_kubespray/collection/community/okd/plugins/module_utils/k8s.py
ByeonJungHun 360c6eef4a offline 작업
2024-02-19 16:02:29 +09:00

187 lines
8.8 KiB
Python

#!/usr/bin/env python
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
import re
import operator
from functools import reduce
import traceback
from ansible_collections.kubernetes.core.plugins.module_utils.common import (
K8sAnsibleMixin,
get_api_client,
)
from ansible.module_utils._text import to_native
try:
from kubernetes.dynamic.exceptions import DynamicApiError, NotFoundError, ForbiddenError
HAS_KUBERNETES_COLLECTION = True
except ImportError as e:
HAS_KUBERNETES_COLLECTION = False
k8s_collection_import_exception = e
K8S_COLLECTION_ERROR = traceback.format_exc()
TRIGGER_ANNOTATION = 'image.openshift.io/triggers'
TRIGGER_CONTAINER = re.compile(r"(?P<path>.*)\[((?P<index>[0-9]+)|\?\(@\.name==[\"'\\]*(?P<name>[a-z0-9]([-a-z0-9]*[a-z0-9])?))")
class OKDRawModule(K8sAnsibleMixin):
def __init__(self, module, k8s_kind=None, *args, **kwargs):
self.module = module
self.client = get_api_client(module=module)
self.check_mode = self.module.check_mode
self.params = self.module.params
self.fail_json = self.module.fail_json
self.fail = self.module.fail_json
self.exit_json = self.module.exit_json
super(OKDRawModule, self).__init__(module, *args, **kwargs)
self.warnings = []
self.kind = k8s_kind or self.params.get('kind')
self.api_version = self.params.get('api_version')
self.name = self.params.get('name')
self.namespace = self.params.get('namespace')
self.check_library_version()
self.set_resource_definitions(module)
def perform_action(self, resource, definition):
state = self.params.get('state', None)
name = definition['metadata'].get('name')
namespace = definition['metadata'].get('namespace')
if state != 'absent':
if resource.kind in ['Project', 'ProjectRequest']:
try:
resource.get(name, namespace)
except (NotFoundError, ForbiddenError):
return self.create_project_request(definition)
except DynamicApiError as exc:
self.fail_json(msg='Failed to retrieve requested object: {0}'.format(exc.body),
error=exc.status, status=exc.status, reason=exc.reason)
try:
existing = resource.get(name=name, namespace=namespace).to_dict()
except Exception:
existing = None
if existing:
if resource.kind == 'DeploymentConfig':
if definition.get('spec', {}).get('triggers'):
definition = self.resolve_imagestream_triggers(existing, definition)
elif existing['metadata'].get('annotations', {}).get(TRIGGER_ANNOTATION):
definition = self.resolve_imagestream_trigger_annotation(existing, definition)
return super(OKDRawModule, self).perform_action(resource, definition)
@staticmethod
def get_index(desired, objects, keys):
""" Iterates over keys, returns the first object from objects where the value of the key
matches the value in desired
"""
# pylint: disable=use-a-generator
# Use a generator instead 'all(desired.get(key, True) == item.get(key, False) for key in keys)'
for i, item in enumerate(objects):
if item and all([desired.get(key, True) == item.get(key, False) for key in keys]):
return i
def resolve_imagestream_trigger_annotation(self, existing, definition):
import yaml
def get_from_fields(d, fields):
try:
return reduce(operator.getitem, fields, d)
except Exception:
return None
def set_from_fields(d, fields, value):
get_from_fields(d, fields[:-1])[fields[-1]] = value
if TRIGGER_ANNOTATION in definition['metadata'].get('annotations', {}).keys():
triggers = yaml.safe_load(definition['metadata']['annotations'][TRIGGER_ANNOTATION] or '[]')
else:
triggers = yaml.safe_load(existing['metadata'].get('annotations', '{}').get(TRIGGER_ANNOTATION, '[]'))
if not isinstance(triggers, list):
return definition
for trigger in triggers:
if trigger.get('fieldPath'):
parsed = self.parse_trigger_fieldpath(trigger['fieldPath'])
path = parsed.get('path', '').split('.')
if path:
existing_containers = get_from_fields(existing, path)
new_containers = get_from_fields(definition, path)
if parsed.get('name'):
existing_index = self.get_index({'name': parsed['name']}, existing_containers, ['name'])
new_index = self.get_index({'name': parsed['name']}, new_containers, ['name'])
elif parsed.get('index') is not None:
existing_index = new_index = int(parsed['index'])
else:
existing_index = new_index = None
if existing_index is not None and new_index is not None:
if existing_index < len(existing_containers) and new_index < len(new_containers):
set_from_fields(definition, path + [new_index, 'image'], get_from_fields(existing, path + [existing_index, 'image']))
return definition
def resolve_imagestream_triggers(self, existing, definition):
existing_triggers = existing.get('spec', {}).get('triggers')
new_triggers = definition['spec']['triggers']
existing_containers = existing.get('spec', {}).get('template', {}).get('spec', {}).get('containers', [])
new_containers = definition.get('spec', {}).get('template', {}).get('spec', {}).get('containers', [])
for i, trigger in enumerate(new_triggers):
if trigger.get('type') == 'ImageChange' and trigger.get('imageChangeParams'):
names = trigger['imageChangeParams'].get('containerNames', [])
for name in names:
old_container_index = self.get_index({'name': name}, existing_containers, ['name'])
new_container_index = self.get_index({'name': name}, new_containers, ['name'])
if old_container_index is not None and new_container_index is not None:
image = existing['spec']['template']['spec']['containers'][old_container_index]['image']
definition['spec']['template']['spec']['containers'][new_container_index]['image'] = image
existing_index = self.get_index(trigger['imageChangeParams'],
[x.get('imageChangeParams') for x in existing_triggers],
['containerNames'])
if existing_index is not None:
existing_image = existing_triggers[existing_index].get('imageChangeParams', {}).get('lastTriggeredImage')
if existing_image:
definition['spec']['triggers'][i]['imageChangeParams']['lastTriggeredImage'] = existing_image
existing_from = existing_triggers[existing_index].get('imageChangeParams', {}).get('from', {})
new_from = trigger['imageChangeParams'].get('from', {})
existing_namespace = existing_from.get('namespace')
existing_name = existing_from.get('name', False)
new_name = new_from.get('name', True)
add_namespace = existing_namespace and 'namespace' not in new_from.keys() and existing_name == new_name
if add_namespace:
definition['spec']['triggers'][i]['imageChangeParams']['from']['namespace'] = existing_from['namespace']
return definition
def parse_trigger_fieldpath(self, expression):
parsed = TRIGGER_CONTAINER.search(expression).groupdict()
if parsed.get('index'):
parsed['index'] = int(parsed['index'])
return parsed
def create_project_request(self, definition):
definition['kind'] = 'ProjectRequest'
result = {'changed': False, 'result': {}}
resource = self.find_resource('ProjectRequest', definition['apiVersion'], fail=True)
if not self.check_mode:
try:
k8s_obj = resource.create(definition)
result['result'] = k8s_obj.to_dict()
except DynamicApiError as exc:
self.fail_json(msg="Failed to create object: {0}".format(exc.body),
error=exc.status, status=exc.status, reason=exc.reason)
result['changed'] = True
result['method'] = 'create'
return result