import pwd
import sha
import string
-import urllib
+import threading
+import curlwrapper
import logger
import tools
-BOOT_SERVER = "plc-a.demo.vmware"
-
-
-def checksum(path):
- try:
- f = open(path)
- try: return sha.new(f.read()).digest()
- finally: f.close()
- except IOError: return None
-
-def system(cmd):
- if cmd:
- logger.log('cf: running command %s' % cmd)
- return os.system(cmd)
- else: return 0
-
-def conf_file(cf_rec):
- if not cf_rec['enabled']: return
- dest = cf_rec['dest']
- logger.log('cf: considering file %s' % dest)
- err_cmd = cf_rec['error_cmd']
- mode = string.atoi(cf_rec['file_permissions'], base=8)
- uid = pwd.getpwnam(cf_rec['file_owner'])[2]
- gid = grp.getgrnam(cf_rec['file_group'])[2]
- src, msg = urllib.urlretrieve('https://%s%s' % (BOOT_SERVER, cf_rec['source']))
- if not cf_rec['always_update'] and checksum(src) == checksum(dest):
- logger.log('cf: skipping file %s, always_update is false and checksums are identical' % dest)
- return
- if system(cf_rec['preinstall_cmd']):
- system(err_cmd)
- if not cf_rec['ignore_cmd_errors']: return
- logger.log('cf: installing file %s' % dest)
- os.chmod(src, mode)
- os.chown(src, uid, gid)
- os.rename(src, dest)
- if system(cf_rec['postinstall_cmd']): system(err_cmd)
-
-def GetSlivers_callback(data):
- def run():
- for d in data:
- for f in d['conf_files']:
- try: conf_file(f)
- except: logger.log_exc()
- tools.as_daemon_thread(run)
-
-def start(options): pass
+class conf_files:
+ def __init__(self, config, noscripts=False):
+ self.config = config
+ self.noscripts = noscripts
+ self.cond = threading.Condition()
+ self.data = None
+
+ def checksum(self, path):
+ try:
+ f = open(path)
+ try: return sha.new(f.read()).digest()
+ finally: f.close()
+ except IOError: return None
+
+ def system(self, cmd):
+ if not self.noscripts and cmd:
+ logger.log('conf_files: running command %s' % cmd)
+ return tools.fork_as(None, os.system, cmd)
+ else: return 0
+
+ def update_conf_file(self, cf_rec):
+ if not cf_rec['enabled']: return
+ dest = cf_rec['dest']
+ # XXX Remove once old Node Manager is out of service
+ if dest == '/etc/proper/propd.conf': return
+ err_cmd = cf_rec['error_cmd']
+ mode = string.atoi(cf_rec['file_permissions'], base=8)
+ uid = pwd.getpwnam(cf_rec['file_owner'])[2]
+ gid = grp.getgrnam(cf_rec['file_group'])[2]
+ url = 'https://%s/%s' % (self.config.PLC_BOOT_HOST, cf_rec['source'])
+ try:
+ contents = curlwrapper.retrieve(url, self.config.cacert)
+ except curlwrapper.CurlException:
+ logger.log('conf_files: failed to retrieve %s from %s, skipping' % (dest, url))
+ return
+ if not cf_rec['always_update'] and sha.new(contents).digest() == self.checksum(dest):
+ return
+ if self.system(cf_rec['preinstall_cmd']):
+ self.system(err_cmd)
+ if not cf_rec['ignore_cmd_errors']: return
+ logger.log('conf_files: installing file %s from %s' % (dest, url))
+ try: os.makedirs(os.path.dirname(dest))
+ except OSError: pass
+ tools.write_file(dest, lambda f: f.write(contents), mode=mode, uidgid=(uid,gid))
+ if self.system(cf_rec['postinstall_cmd']): self.system(err_cmd)
+
+ def run_once(self, data):
+ for f in data['conf_files']:
+ try: self.update_conf_file(f)
+ except: logger.log_exc()
+
+ def run(self):
+ while True:
+ self.cond.acquire()
+ while self.data == None: self.cond.wait()
+ data = self.data
+ self.data = None
+ self.cond.release()
+ self.run_once(data)
+
+ def callback(self, data):
+ if data != None:
+ self.cond.acquire()
+ self.data = data
+ self.cond.notify()
+ self.cond.release()
+
+main = None
+
+def start(options, config):
+ global main
+ main = conf_files(config)
+ tools.as_daemon_thread(main.run)
+
+def GetSlivers(data):
+ global main
+ assert main is not None
+ return main.callback(data)
+
+if __name__ == '__main__':
+ import optparse
+ parser = optparse.OptionParser()
+ parser.add_option('-f', '--config', action='store', dest='config', default='/etc/planetlab/plc_config', help='PLC configuration file')
+ parser.add_option('-k', '--session', action='store', dest='session', default='/etc/planetlab/session', help='API session key (or file)')
+ parser.add_option('--noscripts', action='store_true', dest='noscripts', default=False, help='Do not run pre- or post-install scripts')
+ (options, args) = parser.parse_args()
+
+ # Load /etc/planetlab/plc_config
+ from config import Config
+ config = Config(options.config)
+
+ # Load /etc/planetlab/session
+ if os.path.exists(options.session):
+ session = file(options.session).read().strip()
+ else:
+ session = options.session
+
+ # Initialize XML-RPC client
+ from plcapi import PLCAPI
+ plc = PLCAPI(config.plc_api_uri, config.cacert, auth = session)
+
+ main = conf_files(config, options.noscripts)
+ data = plc.GetSlivers()
+ main.run_once(data)
git://git.onelab.eu / nodemanager.git / blobdiff