infrastructure-provisioning/src/ssn/scripts/configure_conf_file.py

#!/usr/bin/python
# *****************************************************************************
#
# Copyright (c) 2016, EPAM SYSTEMS INC
#
# 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.
#
# ******************************************************************************


from fabric.api import *
import sys
import argparse
import os
import json
import ConfigParser

parser = argparse.ArgumentParser()
parser.add_argument('--dlab_dir', type=str, default='')
parser.add_argument('--variables_list', type=str, default='')
args = parser.parse_args()


def modify_conf_file():
    try:
        variables_list = json.loads(args.variables_list)
        conf_list = []
        conf_file = open('{}sources/infrastructure-provisioning/src/general/conf/dlab.ini'.format(args.dlab_dir), 'r')
        for line in conf_file:
            conf_list.append(line)

        for line in conf_list:
            if line[0:2] == '# ':
                conf_list[conf_list.index(line)] = line.replace('# ', '')

        with open('/tmp/dlab.ini.modified', 'w') as conf_file_modified:
            conf_file_modified.writelines(conf_list)

        config = ConfigParser.RawConfigParser()
        config.read('/tmp/dlab.ini.modified')
        for section in config.sections():
            options = config.options(section)
            for option in options:
                try:
                    print('Trying to put variable {}_{} to conf file'.format(section, option))
                    config.set(section, option, variables_list['{}_{}'.format(section, option)])
                except:
                    print('Such variable doesn`t exist!')
                    config.remove_option(section, option)

        with open('{}sources/infrastructure-provisioning/src/general/conf/overwrite.ini'.format(args.dlab_dir), 'w') as conf_file_final:
            config.write(conf_file_final)
    except Exception as error:
        print('Error with modifying conf files:')
        print(str(error))
        sys.exit(1)


if __name__ == "__main__":
    try:
        modify_conf_file()
    except:
        sys.exit(1)