Run DevStack in the gate
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#!/usr/bin/env python
# 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 argparse
import logging
import os
import sys
import yaml
GRID = None
ALLOWED_BRANCHES = []
FALSE_VALUES = [None, '', '0', 'false', 'False', 'FALSE']
FORMAT = '%(asctime)s %(levelname)s: %(message)s'
logging.basicConfig(format=FORMAT)
LOG = logging.getLogger(__name__)
def parse_features(fname):
with open(fname) as f:
return yaml.load(f)
def normalize_branch(branch):
if branch.startswith(("feature/", "bug/")):
# Feature and bug branches chase master and should be tested
# as if they were the master branch.
branch = GRID['branches']['default']
elif branch.startswith("stable/"):
branch = branch[len("stable/"):]
elif branch.startswith("proposed/"):
branch = branch[len("proposed/"):]
for allowed in GRID['branches']['allowed']:
# If the branch name starts with one of our known
# named integrated release names treat that branch
# as belonging to the integrated release. This means
# proposed/foo* will be treated as the foo release.
if branch.startswith(allowed):
branch = allowed
break
else:
# Releases that are not named integreated releases
# should be tested as if they were the master branch
# as they occur between integrated releases when other
# projects are developing master.
branch = GRID['branches']['default']
if branch not in ALLOWED_BRANCHES:
LOG.error("branch not allowed by features matrix: %s" % branch)
sys.exit(1)
return branch
def configs_from_env():
configs = []
for k, v in os.environ.items():
if k.startswith('DEVSTACK_GATE_'):
if v not in FALSE_VALUES:
f = k.split('DEVSTACK_GATE_')[1]
configs.append(f.lower())
return configs
def calc_services(branch, features, configs, role):
LOG.debug('Role: %s', role)
services = set()
for feature in features:
grid_feature = GRID[role][feature]
add_services = grid_feature['base'].get('services', [])
if add_services:
LOG.debug('Adding services for feature %s: %s',
feature, add_services)
services.update(add_services)
if branch in grid_feature:
update_services = grid_feature[branch].get('services', [])
if update_services:
LOG.debug('Updating branch: %s specific services for '
'feature %s: %s', branch, feature, update_services)
services.update(update_services)
# deletes always trump adds
for feature in features:
grid_feature = GRID[role][feature]
rm_services = grid_feature['base'].get('rm-services', [])
if rm_services:
LOG.debug('Removing services for feature %s: %s',
feature, rm_services)
services.difference_update(rm_services)
if branch in grid_feature:
services.difference_update(
grid_feature[branch].get('rm-services', []))
# Finally, calculate any services to add/remove per config.
# TODO(mriedem): This is not role-based so any per-config service
# modifications are dealt with globally across all nodes.
# do all the adds first
for config in configs:
if config in GRID['config']:
add_services = GRID['config'][config].get('services', [])
if add_services:
LOG.debug('Adding services for config %s: %s',
config, add_services)
services.update(add_services)
# deletes always trump adds
for config in configs:
if config in GRID['config']:
rm_services = GRID['config'][config].get('rm-services', [])
if rm_services:
LOG.debug('Removing services for config %s: %s',
config, rm_services)
services.difference_update(rm_services)
return sorted(list(services))
def calc_features(branch, configs=[]):
LOG.debug("Branch: %s" % branch)
LOG.debug("Configs: %s" % configs)
if os.environ.get('DEVSTACK_GATE_NO_SERVICES') not in FALSE_VALUES:
features = set(GRID['config']['default']['no_services'])
else:
features = set(GRID['config']['default'][branch])
# do all the adds first
for config in configs:
if config in GRID['config']:
add_features = GRID['config'][config].get('features', [])
if add_features:
LOG.debug('Adding features for config %s: %s',
config, add_features)
features.update(add_features)
# removes always trump
for config in configs:
if config in GRID['config']:
rm_features = GRID['config'][config].get('rm-features', [])
if rm_features:
LOG.debug('Removing features for config %s: %s',
config, rm_features)
features.difference_update(rm_features)
return sorted(list(features))
def get_opts():
usage = """
Compute the test matrix for devstack gate jobs from a combination
of environmental feature definitions and flags.
"""
parser = argparse.ArgumentParser(description=usage)
parser.add_argument('-f', '--features',
default='roles/test-matrix/files/features.yaml',
help="Yaml file describing the features matrix")
parser.add_argument('-b', '--branch',
default="master",
help="Branch to compute the matrix for")
parser.add_argument('-m', '--mode',
default="services",
help="What to return (services, compute-ext)")
parser.add_argument('-r', '--role',
default='primary',
help="What role this node will have",
choices=['primary', 'subnode'])
parser.add_argument('-a', '--ansible',
dest='ansible',
help="Behave as an Ansible Module",
action='store_true')
parser.add_argument('-n', '--not-ansible',
dest='ansible',
help="Behave as python CLI",
action='store_false')
parser.add_argument('-v', '--verbose',
default=False, action='store_true',
help='Log verbose output')
parser.set_defaults(ansible=True)
return parser.parse_args()
def main():
global GRID
global ALLOWED_BRANCHES
opts = get_opts()
if opts.verbose:
LOG.setLevel(logging.DEBUG)
if opts.ansible:
ansible_module = get_ansible_module()
features = ansible_module.params['features']
branch = ansible_module.params['branch']
role = ansible_module.params['role']
configs = ansible_module.params['configs']
else:
features = opts.features
branch = opts.branch
role = opts.role
configs = configs_from_env()
GRID = parse_features(features)
ALLOWED_BRANCHES = GRID['branches']['allowed']
branch = normalize_branch(branch)
features = calc_features(branch, configs)
LOG.debug("Features: %s " % features)
services = calc_services(branch, features, configs, role)
LOG.debug("Services: %s " % services)
if opts.ansible:
ansible_module.exit_json(changed=True, services=services)
else:
if opts.mode == "services":
print(",".join(services))
def get_ansible_module():
from ansible.module_utils.basic import AnsibleModule
return AnsibleModule(
argument_spec=dict(
features=dict(type='str'),
branch=dict(type='str'),
role=dict(type='str'),
configs=dict(type='list')
)
)
if __name__ == "__main__":
sys.exit(main())