tripleo-validations/library/check_ironic_boot_config.py

128 lines
3.8 KiB
Python

#!/usr/bin/env python
# Copyright 2019 Red Hat, Inc.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import collections
from ansible.module_utils.basic import AnsibleModule # noqa
from oslo_utils import uuidutils
from yaml import safe_load as yaml_safe_load
DOCUMENTATION = '''
---
module: check_ironic_boot_config
short_description:
- Check that overcloud nodes have the correct associated ramdisk and kernel
image
description:
- Each overcloud node needs to have the correct associated ramdisk and
kernel image according to its architecture and platform. This can be
validated by making sure that like nodes have associated deploy images
not exceeding a certain standard of diversity.
options:
nodes:
required: true
description:
- A list of nodes from Ironic
type: list
author: Jeremy Freudberg
'''
EXAMPLES = '''
- hosts: undercloud
tasks:
- name: Check Ironic boot config
check_ironic_boot_config:
nodes: "{{ lookup('ironic_nodes', wantlist=True) }}"
'''
GLANCE = 'Glance'
FILE = 'file-based'
def _too_diverse(mapping_type, node_info, images):
image_type = "deploy_%s" % node_info[0]
return (
"There is more than one {} {} associated to nodes with architecture "
"{} and platform {}. Probably only one of {} should be associated."
).format(mapping_type, image_type, node_info[1], node_info[2], images)
def _invalid_image_entry(image_type_base, image_entry, node_id):
image_type = "deploy_%s" % image_type_base
return (
"The {} associated to node {} is of an invalid form. Could not "
"determine whether {} refers to a file or Glance image."
).format(image_type, node_id, image_entry)
def validate_boot_config(nodes):
errors = []
associated_images = {
GLANCE: collections.defaultdict(set),
FILE: collections.defaultdict(set)
}
for node in nodes:
arch = node["properties"].get("cpu_arch", None)
platform = node["extra"].get("tripleo_platform", None)
for image_type in ['kernel', 'ramdisk']:
image_entry = (
node["driver_info"].get("deploy_%s" % image_type, None)
)
if uuidutils.is_uuid_like(image_entry):
mapping = GLANCE
elif str(image_entry).startswith("file://"):
mapping = FILE
# TODO(jfreud): uncomment when Ironic supports empty driver_info
# elif image_entry is None:
# continue
else:
errors.append(_invalid_image_entry(
image_type, image_entry, node["uuid"]))
continue
node_info = (image_type, arch, platform)
associated_images[mapping][node_info].add(image_entry)
for mapping_type, mapping in associated_images.items():
for node_info, images in mapping.items():
if len(images) > 1:
errors.append(_too_diverse(mapping_type, node_info, images))
return errors
def main():
module = AnsibleModule(
argument_spec=yaml_safe_load(DOCUMENTATION)['options']
)
nodes = module.params.get('nodes')
errors = validate_boot_config(nodes)
if errors:
module.fail_json("".join(errors))
else:
module.exit_json()
if __name__ == '__main__':
main()