146 lines
4.6 KiB
Python
Executable File
146 lines
4.6 KiB
Python
Executable File
#!/usr/bin/env python
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import argparse
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import logging
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import re
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import shlex
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import subprocess
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import sys
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import yaml
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console = logging.StreamHandler()
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formatter = logging.Formatter('%(message)s')
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console.setFormatter(formatter)
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logger = logging.getLogger()
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logger.setLevel(logging.DEBUG)
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logger.addHandler(console)
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def system_command(command, expected_resultcodes=(0,)):
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commands = [i.strip() for i in re.split(ur'\|', command)]
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process = []
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process.append(subprocess.Popen(shlex.split(commands[0]),
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stdin=None,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE))
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for c in commands[1:]:
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process[-1].wait()
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process.append(subprocess.Popen(shlex.split(c),
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stdin=process[-1].stdout,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE))
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process[-1].wait()
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serr = []
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for p in process:
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serr += [err.strip() for err in p.stderr.readlines()]
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returncode = process[-1].returncode
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if expected_resultcodes and returncode not in expected_resultcodes:
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logger.error(
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"Command: '%s'\nreturned not expected value: %d\n"
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"stdout:\n%s\nstderr:\n%s",
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(command, returncode, process[-1].stdout.read().rstrip('\n'),
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'\n'.join(serr).rstrip('\n')))
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sys.exit(1)
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else:
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logger.debug("Command '%s' returned %d" % (command, returncode))
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return returncode
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def is_system_exist(system_name):
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command = """/usr/bin/cobbler system find \
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--name=%s | grep \"^%s$\" """ % (system_name, system_name)
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logger.debug("Running command: %s" % command)
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code = system_command(command, expected_resultcodes=(0, 1))
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return code == 0
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def update_system(system_name, system_dict):
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addedit = 'add'
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if is_system_exist(system_name):
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addedit = 'edit'
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command = ["/usr/bin/cobbler system %s --name='%s' --hostname='%s'" %
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(addedit, system_name, system_dict['hostname'])]
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ksmeta = system_dict.get('ksmeta', '')
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for opt in system_dict:
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if opt in ('interfaces', 'ksmeta', 'interfaces_extra'):
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continue
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command.append("""--%s='%s'""" % (opt, system_dict[opt]))
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for int_name in system_dict.get('interfaces_extra', {}):
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int_extra_dict = system_dict['interfaces_extra'][int_name]
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for int_extra in int_extra_dict:
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ksmeta = """%s interface_extra_%s_%s=%s""" % \
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(ksmeta, int_name, int_extra, int_extra_dict[int_extra])
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command.append("""--ksmeta='%s'""" % ksmeta)
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command = " ".join(command)
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logger.info("Running command: %s" % command)
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return system_command(command) == 0
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def update_system_interfaces(system_name, interfaces_dict):
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addedit = 'add'
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if is_system_exist(system_name):
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addedit = 'edit'
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code = set([0])
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for interface_name in interfaces_dict:
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logger.info("=== Defining interface ===: %s" % interface_name)
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int_opts = interfaces_dict[interface_name]
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command = ["""/usr/bin/cobbler system %s --name='%s' \
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--interface='%s'""" % (addedit, system_name, interface_name)]
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for opt in int_opts:
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logger.debug("Interface option: %s = %s" % (opt, int_opts[opt]))
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command.append("""--%s='%s'""" % (opt, int_opts[opt]))
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command = " ".join(command)
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logger.info("Running command: %s" % command)
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code.union(set([system_command(command)]))
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return len(code) == 0
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def main():
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parser = argparse.ArgumentParser()
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parser.add_argument("-f", "--file", dest="file",
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metavar="YAML_FILE", type=str,
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help="nodes yaml file")
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parser.add_argument("-l", "--level", dest="log_level", type=str,
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help="log level, one of DEBUG, INFO, WARNING, ERROR",
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choices=["DEBUG", "INFO", "WARNING", "ERROR"],
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default="INFO", metavar="LEVEL")
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params = parser.parse_args()
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numeric_level = getattr(logging, params.log_level.upper())
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logger.setLevel(numeric_level)
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if params.file is None:
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parser.error("Yaml file must be defined with -f option.")
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with open(params.file, 'r') as file:
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nodes = yaml.load(file.read())
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for name in nodes:
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logger.info("====== Defining node ======: %s" % name)
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update_system(name, nodes[name])
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update_system_interfaces(name, nodes[name]['interfaces'])
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if __name__ == "__main__":
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main()
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