import os
import vserver
from sets import Set
+from config import Config
CODEMUXCONF="/etc/codemux/codemux.conf"
def GetSlivers(data):
"""For each sliver with the codemux attribute, parse out "host,port" and make entry in conf. Restart service after."""
+ logger.log("codemux: Starting.", 2)
# slices already in conf
slicesinconf = parseConf()
# slices that need to be written to the conf
codemuxslices = {}
- _writeconf = False
+
+ # XXX Hack for planetflow
+ if slicesinconf.has_key("root"): _writeconf = False
+ else: _writeconf = True
+
# Parse attributes and update dict of scripts
for sliver in data['slivers']:
for attribute in sliver['attributes']:
if attribute['name'] == 'codemux':
# add to conf. Attribute is [host, port]
- [host, port] = attribute['value'].split()
+ params = {'host': attribute['value'].split(",")[0],
+ 'port': attribute['value'].split(",")[1]}
try:
# Check to see if sliver is running. If not, continue
if vserver.VServer(sliver['name']).is_running():
- # Check for new
- if sliver['name'] not in slicesinconf.keys():
- logger.log("codemux: New slice %s using %s" % \
- (sliver['name'], host))
- codemuxslices[sliver['name']] = {'host': host, 'port': port}
+ # Check if new or needs updating
+ if (sliver['name'] not in slicesinconf.keys()) \
+ or (params not in slicesinconf.get(sliver['name'], [])):
+ logger.log("codemux: Updaiting slice %s using %s" % \
+ (sliver['name'], params['host']))
+ # Toggle write.
_writeconf = True
- # Check old slivers for changes
- else:
- sliverinconf = slicesinconf[sliver['name']]
- if (sliverinconf['host'] != host) or \
- (sliverinconf['port'] != port):
- logger.log("codemux: Updating slice %s" % sliver['name'])
- _writeconf = True
- codemuxslices[sliver['name']] = {'host': host, 'port': port}
+ # Add to dict of codemuxslices. Make list to support more than one
+ # codemuxed host per slice.
+ codemuxslices.setdefault(sliver['name'],[])
+ codemuxslices[sliver['name']].append(params)
except:
logger.log("codemux: sliver %s not running yet. Deferring."\
% sliver['name'])
pass
- if _writeconf: writeConf(codemuxslices)
+ # Remove slices from conf that no longer have the attribute
+ for deadslice in Set(slicesinconf.keys()) - Set(codemuxslices.keys()):
+ # XXX Hack for root slice
+ if deadslice != "root":
+ logger.log("codemux: Removing %s" % deadslice)
+ _writeconf = True
+
+ if _writeconf: writeConf(sortDomains(codemuxslices))
def writeConf(slivers, conf = CODEMUXCONF):
- '''Write conf with default entry up top. Restart service.'''
- f.open(conf)
- f.write("* root 1080")
- for (host, slice, port) in slivers.iteritems():
- f.write("%s %s %s" % [host, slice, port])
+ '''Write conf with default entry up top. Elements in [] should have lower order domain names first. Restart service.'''
+ f = open(conf, "w")
+ # This needs to be the first entry...
+ try:
+ f.write("* root 1080 %s\n" % Config().PLC_PLANETFLOW_HOST)
+ except AttributeError:
+ logger.log("codemux: Can't find PLC_CONFIG_HOST in config. Using PLC_API_HOST")
+ f.write("* root 1080 %s\n" % Config().PLC_API_HOST)
+ # Sort items for like domains
+ for mapping in slivers:
+ for (host, params) in mapping.iteritems():
+ if params['slice'] == "root": continue
+ f.write("%s %s %s\n" % (host, params['slice'], params['port']))
f.truncate()
f.close()
- logger.log("codemux: restarting codemux service")
- os.system("/etc/init.d/codemux restart")
-
+ try: restartService()
+ except: logger.log_exc()
+def sortDomains(slivers):
+ '''Given a dict of {slice: {domainname, port}}, return array of slivers with lower order domains first'''
+ dnames = {} # {host: slice}
+ for (slice, params) in slivers.iteritems():
+ for mapping in params:
+ dnames[mapping['host']] = {"slice":slice, "port": mapping['port']}
+ hosts = dnames.keys()
+ # sort by length
+ hosts.sort(key=str.__len__)
+ # longer first
+ hosts.reverse()
+ # make list of slivers
+ sortedslices = []
+ for host in hosts: sortedslices.append({host: dnames[host]})
+
+ return sortedslices
+
def parseConf(conf = CODEMUXCONF):
'''Parse the CODEMUXCONF and return dict of slices in conf. {slice: (host,port)}'''
- slicesinconf = {}
+ slicesinconf = {} # default
try:
f = open(conf)
for line in f.readlines():
- if line.startswith("#") or (len(line.split()) != 3):
+ if line.startswith("#") \
+ or (len(line.split()) > 4) \
+ or (len(line.split()) < 3):
continue
(host, slice, port) = line.split()[:3]
- slicesinconf[slice] = {"host": host, "port": port}
+ logger.log("codemux: found %s in conf" % slice, 2)
+ slicesinconf.setdefault(slice, [])
+ slicesinconf[slice].append({"host": host, "port": port})
f.close()
- except: logger.log_exc()
+ except IOError: logger.log_exc()
return slicesinconf
-
+def restartService():
+ logger.log("codemux: Restarting codemux service")
+ os.system("/etc/init.d/codemux stop")
+ f = os.popen("/sbin/pidof codemux")
+ tmp = f.readlines()
+ f.close()
+ if len(tmp) > 0:
+ pids = tmp[0].rstrip("\n").split()
+ for pid in pids:
+ logger.log("codemux: Killing stalled pid %s" % pid, 2)
+ os.kill(pid, 9)
+ os.system("/etc/init.d/codemux start")
git://git.onelab.eu / nodemanager.git / blobdiff