infrastructure-provisioning/src/general/api/reconfigure_spark.py

#!/usr/bin/python

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#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you 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
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# software distributed under the License is distributed on an
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import os
import json
import sys
from fabric.api import local


if __name__ == "__main__":
    success = True
    try:
        local('cd /root; fab reconfigure_spark')
    except:
        success = False

    reply = dict()
    reply['request_id'] = os.environ['request_id']
    if success:
        reply['status'] = 'ok'
    else:
        reply['status'] = 'err'

    reply['response'] = dict()

    try:
        with open("/root/result.json") as f:
            reply['response']['result'] = json.loads(f.read())
    except:
        reply['response']['result'] = {"error": "Failed to open result.json"}

    reply['response']['log'] = "/var/log/dlab/{0}/{0}_{1}_{2}.log".format(os.environ['conf_resource'],
                                                                          os.environ['project_name'],
                                                                          os.environ['request_id'])

    with open("/response/{}_{}_{}.json".format(os.environ['conf_resource'], os.environ['project_name'],
                                               os.environ['request_id']), 'w') as response_file:
        response_file.write(json.dumps(reply))

    try:
        local('chmod 666 /response/*')
    except:
        success = False

    if not success:
        sys.exit(1)