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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 os
import sys
import traceback
import yaml
required_params = ['EndpointMap', 'ServiceNetMap', 'DefaultPasswords']
def exit_usage():
print('Usage %s <yaml file or directory>' % sys.argv[0])
sys.exit(1)
def validate_mysql_connection(settings):
no_op = lambda *args: False
error_status = [0]
def mysql_protocol(items):
return items == ['EndpointMap', 'MysqlInternal', 'protocol']
def client_bind_address(item):
return 'bind_address' in item
def validate_mysql_uri(key, items):
# Only consider a connection if it targets mysql
if key.endswith('connection') and \
search(items, mysql_protocol, no_op):
# Assume the "bind_address" option is one of
# the token that made up the uri
if not search(items, client_bind_address, no_op):
error_status[0] = 1
return False
def search(item, check_item, check_key):
if check_item(item):
return True
elif isinstance(item, list):
for i in item:
if search(i, check_item, check_key):
return True
elif isinstance(item, dict):
for k in item.keys():
if check_key(k, item[k]):
return True
elif search(item[k], check_item, check_key):
return True
return False
search(settings, no_op, validate_mysql_uri)
return error_status[0]
def validate_service(filename, tpl):
if 'outputs' in tpl and 'role_data' in tpl['outputs']:
if 'value' not in tpl['outputs']['role_data']:
print('ERROR: invalid role_data for filename: %s'
% filename)
return 1
role_data = tpl['outputs']['role_data']['value']
if 'service_name' not in role_data:
print('ERROR: service_name is required in role_data for %s.'
% filename)
return 1
# service_name must match the filename, but with an underscore
if (role_data['service_name'] !=
os.path.basename(filename).split('.')[0].replace("-", "_")):
print('ERROR: service_name should match file name for service: %s.'
% filename)
return 1
# if service connects to mysql, the uri should use option
# bind_address to avoid issues with VIP failover
if 'config_settings' in role_data and \
validate_mysql_connection(role_data['config_settings']):
print('ERROR: mysql connection uri should use option bind_address')
return 1
if 'parameters' in tpl:
for param in required_params:
if param not in tpl['parameters']:
print('ERROR: parameter %s is required for %s.'
% (param, filename))
return 1
return 0
def validate(filename):
print('Validating %s' % filename)
retval = 0
try:
tpl = yaml.load(open(filename).read())
if (filename.startswith('./puppet/services/') and
filename != './puppet/services/services.yaml'):
retval = validate_service(filename, tpl)
except Exception:
print(traceback.format_exc())
return 1
# yaml is OK, now walk the parameters and output a warning for unused ones
if 'heat_template_version' in tpl:
for p in tpl.get('parameters', {}):
if p in required_params:
continue
str_p = '\'%s\'' % p
in_resources = str_p in str(tpl.get('resources', {}))
in_outputs = str_p in str(tpl.get('outputs', {}))
if not in_resources and not in_outputs:
print('Warning: parameter %s in template %s '
'appears to be unused' % (p, filename))
return retval
if len(sys.argv) < 2:
exit_usage()
path_args = sys.argv[1:]
exit_val = 0
failed_files = []
for base_path in path_args:
if os.path.isdir(base_path):
for subdir, dirs, files in os.walk(base_path):
for f in files:
if f.endswith('.yaml') and not f.endswith('.j2.yaml'):
file_path = os.path.join(subdir, f)
failed = validate(file_path)
if failed:
failed_files.append(file_path)
exit_val |= failed
elif os.path.isfile(base_path) and base_path.endswith('.yaml'):
failed = validate(base_path)
if failed:
failed_files.append(base_path)
exit_val |= failed
else:
print('Unexpected argument %s' % base_path)
exit_usage()
if failed_files:
print('Validation failed on:')
for f in failed_files:
print(f)
else:
print('Validation successful!')
sys.exit(exit_val)
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