-"""Codemux configurator. Monitors slice attributes and configures CoDemux to mux port 80 based on HOST field in HTTP request. Forwards to localhost port belonging to configured slice."""
+"""
+Codemux configurator.
+Monitors slice attributes and configures CoDemux to mux port 80 based on HOST field in HTTP request.
+Forwards to localhost port belonging to configured slice.
+"""
+
+# NOTE
+# in November 2015 it was established that this plugin is the culprit
+# for our long standing slice re-creation issue
+# for this reason this is now turned off on lxc-based hosts
+# as per the spec file this plugin gets packaged as part of
+# nodemanager-vs and not nodemanager-lib anymore
import logger
import os
-import libvirt
+
from config import Config
+import slivermanager
CODEMUXCONF="/etc/codemux/codemux.conf"
codemuxslices = {}
# XXX Hack for planetflow
- if slicesinconf.has_key("root"): _writeconf = False
- else: _writeconf = True
+ if "root" in slicesinconf:
+ _writeconf = False
+ else:
+ _writeconf = True
# Parse attributes and update dict of scripts
if 'slivers' not in data:
if attribute['tagname'] == 'codemux':
# add to conf. Attribute is [host, port]
parts = attribute['value'].split(",")
- if len(parts)<2:
- logger.log("codemux: attribute value (%s) for codemux not separated by comma. Skipping."%attribute['value'])
+ if len(parts) < 2:
+ logger.log("codemux: attribute value (%s) for codemux not separated by comma. Skipping."
+ %attribute['value'])
continue
if len(parts) == 3:
ip = parts[2]
try:
# Check to see if sliver is running. If not, continue
- if isLXCDomRunning(sliver['name']):
+ if slivermanager.is_running(sliver['name']):
# Check if new or needs updating
- if (sliver['name'] not in slicesinconf.keys()) \
+ if (sliver['name'] not in list(slicesinconf.keys())) \
or (params not in slicesinconf.get(sliver['name'], [])):
logger.log("codemux: Updating slice %s using %s" % \
(sliver['name'], params['host']))
_writeconf = True
# Add to dict of codemuxslices. Make list to support more than one
# codemuxed host per slice.
- codemuxslices.setdefault(sliver['name'],[])
+ codemuxslices.setdefault(sliver['name'], [])
codemuxslices[sliver['name']].append(params)
except:
- logger.log("codemux: sliver %s not running yet. Deferring."\
+ logger.log("codemux: sliver %s not running yet. Deferring."
% sliver['name'])
pass
logger.log("codemux: Removing %s" % deadslice)
_writeconf = True
- if _writeconf: writeConf(sortDomains(codemuxslices))
+ if _writeconf:
+ writeConf(sortDomains(codemuxslices))
# ensure the service is running
startService()
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():
+ for (host, params) in mapping.items():
if params['slice'] == "root": continue
f.write("%s %s %s %s\n" % (host, params['slice'], params['port'], params['ip']))
f.truncate()
f.close()
- try: restartService()
- except: logger.log_exc("codemux.writeConf failed to restart service")
+ try:
+ restartService()
+ except:
+ logger.log_exc("codemux.writeConf failed to restart service")
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 (slice, params) in slivers.items():
for mapping in params:
dnames[mapping['host']] = {"slice":slice, "port": mapping['port'], "ip": mapping['ip']}
- hosts = dnames.keys()
+ hosts = list(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]})
+ for host in hosts:
+ sortedslices.append({host: dnames[host]})
return sortedslices
try:
f = open(conf)
for line in f.readlines():
- if line.startswith("#") \
- or (len(line.split()) > 4) \
- or (len(line.split()) < 3):
+ parts = line.split()
+ if line.startswith("#") or (len(parts) > 4) or (len(parts) < 3):
continue
- (host, slice, port) = line.split()[:3]
- logger.log("codemux: found %s in conf" % slice, 2)
- slicesinconf.setdefault(slice, [])
- slicesinconf[slice].append({"host": host, "port": port})
+ if len(parts) == 4:
+ (host, slice, port, ip) = parts
+ logger.log("codemux: found %s in conf" % slice, 2)
+ slicesinconf.setdefault(slice, [])
+ slicesinconf[slice].append({"host": host, "port": port, "ip": ip})
+ else:
+ (host, slice, port) = parts[:3]
+ logger.log("codemux: found %s in conf" % slice, 2)
+ slicesinconf.setdefault(slice, [])
+ slicesinconf[slice].append({"host": host, "port": port})
f.close()
except IOError: logger.log_exc("codemux.parseConf got IOError")
return slicesinconf
if not os.path.exists("/etc/init.d/codemux"): return
logger.log("codemux: Restarting codemux service")
if isRunning():
- logger.log_call(["/etc/init.d/codemux","condrestart", ])
+ logger.log_call(["/etc/init.d/codemux", "condrestart", ])
else:
- logger.log_call(["/etc/init.d/codemux","restart", ])
+ logger.log_call(["/etc/init.d/codemux", "restart", ])
def startService():
if not os.path.exists("/etc/init.d/codemux"): return
logger.log_call(["/etc/init.d/codemux", "stop", ])
logger.log_call(["/sbin/chkconfig", "codemux", "off"])
-def isLXCDomRunning(domName):
- try:
- running = False
- conn = libvirt.open('lxc://')
- dom = conn.lookupByName(domName)
- running = dom.info()[0] == libvirt.VIR_DOMAIN_RUNNING
- finally:
- conn.close()
- return running
-
git://git.onelab.eu / nodemanager.git / blobdiff