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#
# Copyright (c) 2017 All rights reserved
# This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
#
import sys
import yaml
import argparse
import traceback
from utils_log import LOG, LOG_PATH
from abc import abstractmethod
from ssh_util import SSH_CONFIG
class Service(object):
def start(self):
try:
self._run()
except Exception as ex:
LOG.error(ex.message)
LOG.error(traceback.format_exc())
LOG.error("For more logs check: %(log_path)s"
% {'log_path': LOG_PATH})
sys.exit(1)
def _run(self):
parser = self._create_cli_parser()
sys_args = parser.parse_args()
config = self.read_config(sys_args)
if sys_args.ssh_key_file:
SSH_CONFIG['ID_RSA_PATH'] = sys_args.ssh_key_file
self.run(sys_args, config)
@abstractmethod
def run(self, sys_args, config):
# Do something
return
@abstractmethod
def create_cli_parser(self, parser):
# Read in own sys args
return parser
def _create_cli_parser(self):
parser = argparse.ArgumentParser(description='OVS Debugger')
# parser.add_argument('-c', '--config', help="Path to config.yaml",
# required=False)
# parser.add_argument('--boolean', help="",
# required=False, action='store_true')
parser.add_argument('--ssh-key-file',
help="SSH private key file to use",
required=False)
return self.create_cli_parser(parser)
def read_config(self, sys_args):
if not hasattr(sys_args, 'config'):
return None
if not sys_args.config:
config_path = './etc/config.yaml'
else:
config_path = sys_args.config
try:
with open(config_path) as f:
return yaml.load(f)
except yaml.scanner.ScannerError as ex:
LOG.error("Yaml file corrupt. Try putting spaces after the "
"colons.")
raise ex
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