1 """configuration files"""
16 def __init__(self, config, noscripts=False):
18 self.noscripts = noscripts
19 self.cond = threading.Condition()
22 def checksum(self, path):
25 try: return sha.new(f.read()).digest()
27 except IOError: return None
29 def system(self, cmd):
30 if not self.noscripts and cmd:
31 logger.log('conf_files: running command %s' % cmd)
35 def update_conf_file(self, cf_rec):
36 if not cf_rec['enabled']: return
38 # XXX Remove once old Node Manager is out of service
39 if dest == '/etc/proper/propd.conf': return
40 err_cmd = cf_rec['error_cmd']
41 mode = string.atoi(cf_rec['file_permissions'], base=8)
42 uid = pwd.getpwnam(cf_rec['file_owner'])[2]
43 gid = grp.getgrnam(cf_rec['file_group'])[2]
44 url = 'https://%s/%s' % (self.config.PLC_BOOT_HOST, cf_rec['source'])
45 contents = curlwrapper.retrieve(url, self.config.cacert)
46 if not cf_rec['always_update'] and sha.new(contents).digest() == self.checksum(dest):
48 if self.system(cf_rec['preinstall_cmd']):
50 if not cf_rec['ignore_cmd_errors']: return
51 logger.log('conf_files: installing file %s from %s' % (dest, url))
52 try: os.makedirs(os.path.dirname(dest))
54 tools.write_file(dest, lambda f: f.write(contents), mode=mode, uidgid=(uid,gid))
55 if self.system(cf_rec['postinstall_cmd']): self.system(err_cmd)
57 def run_once(self, data):
58 for f in data['conf_files']:
59 try: self.update_conf_file(f)
60 except: logger.log_exc()
65 while self.data == None: self.cond.wait()
71 def callback(self, data):
80 def start(options, config):
82 main = conf_files(config)
83 tools.as_daemon_thread(main.run)
87 assert main is not None
88 return main.callback(data)
90 if __name__ == '__main__':
92 parser = optparse.OptionParser()
93 parser.add_option('-f', '--config', action='store', dest='config', default='/etc/planetlab/plc_config', help='PLC configuration file')
94 parser.add_option('-k', '--session', action='store', dest='session', default='/etc/planetlab/session', help='API session key (or file)')
95 parser.add_option('--noscripts', action='store', dest='noscripts', default=False, help='Do not run pre- or post-install scripts')
96 (options, args) = parser.parse_args()
98 # Load /etc/planetlab/plc_config
99 from config import Config
100 config = Config(options.config)
102 # Load /etc/planetlab/session
103 if os.path.exists(options.session):
104 session = file(options.session).read().strip()
106 session = options.session
108 # Initialize XML-RPC client
109 from plcapi import PLCAPI
110 plc = PLCAPI(config.plc_api_uri, config.cacert, auth = session)
112 main = conf_files(config, options.noscripts)
113 data = plc.GetSlivers()