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gns3-server/gns3server/start_server.py
2014-09-21 21:41:51 -06:00

243 lines
6.6 KiB
Python

# -*- coding: utf-8 -*-
#
# Copyright (C) 2013 GNS3 Technologies Inc.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# __version__ is a human-readable version number.
# __version_info__ is a four-tuple for programmatic comparison. The first
# three numbers are the components of the version number. The fourth
# is zero for an official release, positive for a development branch,
# or negative for a release candidate or beta (after the base version
# number has been incremented)
"""
Startup script for GNS3 Server Cloud Instance
"""
import os
import sys
import configparser
import getopt
import datetime
import signal
from logging.handlers import *
from os.path import expanduser
from gns3server.config import Config
import ast
import subprocess
import uuid
SCRIPT_NAME = os.path.basename(__file__)
#Is the full path when used as an import
SCRIPT_PATH = os.path.dirname(__file__)
if not SCRIPT_PATH:
SCRIPT_PATH = os.path.join(os.path.dirname(os.path.abspath(
sys.argv[0])))
LOG_NAME = "gns3-startup"
log = None
usage = """
USAGE: %s
Options:
-d, --debug Enable debugging
-v, --verbose Enable verbose logging
-h, --help Display this menu :)
--data Python dict of data to be written to the config file:
" { 'gns3' : 'Is AWESOME' } "
""" % (SCRIPT_NAME)
# Parse cmd line options
def parse_cmd_line(argv):
"""
Parse command line arguments
argv: Pass in cmd line arguments
"""
short_args = "dvh"
long_args = ("debug",
"verbose",
"help",
"data=",
)
try:
opts, extra_opts = getopt.getopt(argv[1:], short_args, long_args)
except getopt.GetoptError as e:
print("Unrecognized command line option or missing required argument: %s" %(e))
print(usage)
sys.exit(2)
cmd_line_option_list = {}
cmd_line_option_list["debug"] = False
cmd_line_option_list["verbose"] = True
cmd_line_option_list["data"] = None
if sys.platform == "linux":
cmd_line_option_list['syslog'] = "/dev/log"
elif sys.platform == "osx":
cmd_line_option_list['syslog'] = "/var/run/syslog"
else:
cmd_line_option_list['syslog'] = ('localhost',514)
for opt, val in opts:
if (opt in ("-h", "--help")):
print(usage)
sys.exit(0)
elif (opt in ("-d", "--debug")):
cmd_line_option_list["debug"] = True
elif (opt in ("-v", "--verbose")):
cmd_line_option_list["verbose"] = True
elif (opt in ("--data")):
cmd_line_option_list["data"] = ast.literal_eval(val)
return cmd_line_option_list
def set_logging(cmd_options):
"""
Setup logging and format output for console and syslog
Syslog is using the KERN facility
"""
log = logging.getLogger("%s" % (LOG_NAME))
log_level = logging.INFO
log_level_console = logging.WARNING
if cmd_options['verbose'] == True:
log_level_console = logging.INFO
if cmd_options['debug'] == True:
log_level_console = logging.DEBUG
log_level = logging.DEBUG
formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
sys_formatter = logging.Formatter('%(name)s - %(levelname)s - %(message)s')
console_log = logging.StreamHandler()
console_log.setLevel(log_level_console)
console_log.setFormatter(formatter)
syslog_hndlr = SysLogHandler(
address=cmd_options['syslog'],
facility=SysLogHandler.LOG_KERN
)
syslog_hndlr.setFormatter(sys_formatter)
log.setLevel(log_level)
log.addHandler(console_log)
log.addHandler(syslog_hndlr)
return log
def _generate_certs():
cmd = []
cmd.append("%s/cert_utils/create_cert.sh" % (SCRIPT_PATH))
log.debug("Generating certs ...")
output_raw = subprocess.check_output(cmd, shell=False,
stderr=subprocess.STDOUT)
output_str = output_raw.decode("utf-8")
output = output_str.strip().split("\n")
log.debug(output)
return (output[-2], output[-1])
def _start_gns3server():
cmd = []
cmd.append("gns3server")
log.info("Starting gns3server ...")
subprocess.Popen(cmd, shell=False)
def main():
global log
options = parse_cmd_line(sys.argv)
log = set_logging(options)
def _shutdown(signalnum=None, frame=None):
"""
Handles the SIGINT and SIGTERM event, inside of main so it has access to
the log vars.
"""
log.info("Received shutdown signal")
sys.exit(0)
# Setup signal to catch Control-C / SIGINT and SIGTERM
signal.signal(signal.SIGINT, _shutdown)
signal.signal(signal.SIGTERM, _shutdown)
client_data = {}
config = Config.instance()
cfg = config.list_cloud_config_file()
cfg_path = os.path.dirname(cfg)
try:
os.makedirs(cfg_path)
except FileExistsError:
pass
(server_key, server_crt) = _generate_certs()
cloud_config = configparser.ConfigParser()
cloud_config['CLOUD_SERVER'] = {}
if options['data']:
cloud_config['CLOUD_SERVER'] = options['data']
cloud_config['CLOUD_SERVER']['SSL_KEY'] = server_key
cloud_config['CLOUD_SERVER']['SSL_CRT'] = server_crt
cloud_config['CLOUD_SERVER']['SSL_ENABLED'] = 'yes'
cloud_config['CLOUD_SERVER']['WEB_USERNAME'] = str(uuid.uuid4()).upper()[0:8]
cloud_config['CLOUD_SERVER']['WEB_PASSWORD'] = str(uuid.uuid4()).upper()[0:8]
with open(cfg, 'w') as cloud_config_file:
cloud_config.write(cloud_config_file)
cloud_config_file.close()
_start_gns3server()
with open(server_crt, 'r') as cert_file:
cert_data = cert_file.readlines()
cert_file.close()
client_data['SSL_CRT_FILE'] = server_crt
client_data['SSL_CRT'] = cert_data
client_data['WEB_USERNAME'] = cloud_config['CLOUD_SERVER']['WEB_USERNAME']
client_data['WEB_PASSWORD'] = cloud_config['CLOUD_SERVER']['WEB_PASSWORD']
print(client_data)
if __name__ == "__main__":
result = main()
sys.exit(result)