1 """configuration files"""
16 def __init__(self, config):
18 self.cond = threading.Condition()
21 def checksum(self, path):
24 try: return sha.new(f.read()).digest()
26 except IOError: return None
28 def system(self, cmd):
30 logger.log('conf_files: running command %s' % cmd)
34 def update_conf_file(self, cf_rec):
35 if not cf_rec['enabled']: return
37 # XXX Remove once old Node Manager is out of service
38 if dest == '/etc/proper/propd.conf': return
39 err_cmd = cf_rec['error_cmd']
40 mode = string.atoi(cf_rec['file_permissions'], base=8)
41 uid = pwd.getpwnam(cf_rec['file_owner'])[2]
42 gid = grp.getgrnam(cf_rec['file_group'])[2]
43 url = 'https://%s/%s' % (self.config.PLC_BOOT_HOST, cf_rec['source'])
44 contents = curlwrapper.retrieve(url, self.config.cacert)
45 if not cf_rec['always_update'] and sha.new(contents).digest() == self.checksum(dest):
47 if self.system(cf_rec['preinstall_cmd']):
49 if not cf_rec['ignore_cmd_errors']: return
50 logger.log('conf_files: installing file %s from %s' % (dest, url))
51 try: os.makedirs(os.path.dirname(dest))
53 tools.write_file(dest, lambda f: f.write(contents), mode=mode, uidgid=(uid,gid))
54 if self.system(cf_rec['postinstall_cmd']): self.system(err_cmd)
56 def run_once(self, data):
57 for f in data['conf_files']:
58 try: self.update_conf_file(f)
59 except: logger.log_exc()
64 while self.data == None: self.cond.wait()
70 def callback(self, data):
79 def start(options, config):
81 main = conf_files(config)
82 tools.as_daemon_thread(main.run)
86 assert main is not None
87 return main.callback(data)
89 if __name__ == '__main__':
91 parser = optparse.OptionParser()
92 parser.add_option('-f', '--config', action='store', dest='config', default='/etc/planetlab/plc_config', help='PLC configuration file')
93 parser.add_option('-k', '--session', action='store', dest='session', default='/etc/planetlab/session', help='API session key (or file)')
94 (options, args) = parser.parse_args()
96 # Load /etc/planetlab/plc_config
97 from config import Config
98 config = Config(options.config)
100 # Load /etc/planetlab/session
101 if os.path.exists(options.session):
102 session = file(options.session).read().strip()
104 session = options.session
106 # Initialize XML-RPC client
107 from plcapi import PLCAPI
108 plc = PLCAPI(config.plc_api_uri, config.cacert, auth = session)
110 main = conf_files(config)
111 data = plc.GetSlivers()