"""LXC slivers"""
-import logger
import subprocess
+import sys
import os, os.path
+import grp
import libvirt
-import sys
from string import Template
+
+import logger
import bwlimit
-import sliver_libvirt as lv
+import sliver_libvirt
-class Sliver_LXC(lv.Sliver_Libvirt):
+class Sliver_LXC(sliver_libvirt.Sliver_Libvirt):
"""This class wraps LXC commands"""
SHELL = '/bin/sshsh'
def create(name, rec=None):
''' Create dirs, copy fs image, lxc_create '''
logger.verbose ('sliver_lxc: %s create'%(name))
- conn = lv.getConnection(Sliver_LXC.TYPE)
+ conn = sliver_libvirt.getConnection(Sliver_LXC.TYPE)
# Get the type of image from vref myplc tags specified as:
# pldistro = lxc
# check the template exists -- there's probably a better way..
if not os.path.isdir(refImgDir):
logger.log('sliver_lxc: %s: ERROR Could not create sliver - reference image %s not found' % (name,vref))
- logger.log('sliver_lxc: %s: ERROR ctd expected reference image in %s'%(name,refImgDir))
+ logger.log('sliver_lxc: %s: ERROR Expected reference image in %s'%(name,refImgDir))
return
# Snapshot the reference image fs (assume the reference image is in its own
# subvolume)
command = ['btrfs', 'subvolume', 'snapshot', refImgDir, containerDir]
- logger.log_call(command, timeout=15*60)
+ if not logger.log_call(command, timeout=15*60):
+ logger.log('sliver_lxc: ERROR Could not create BTRFS snapshot at', containDir)
+ return
command = ['chmod', '755', containerDir]
logger.log_call(command, timeout=15*60)
# print >>f, name.replace('_', '-')
# Add slices group if not already present
- command = ['/usr/sbin/groupadd', 'slices']
- logger.log_call(command, timeout=15*60)
+ try:
+ group = grp.getgrnam('slices')
+ except:
+ command = ['/usr/sbin/groupadd', 'slices']
+ logger.log_call(command, timeout=15*60)
# Add unix account (TYPE is specified in the subclass)
command = ['/usr/sbin/useradd', '-g', 'slices', '-s', Sliver_LXC.SHELL, name, '-p', '*']
xid = bwlimit.get_xid(name)
# Template for libvirt sliver configuration
-# template_filename = Sliver_LXC.REF_IMG_BASE_DIR + '/lxc_template.xml'
- # for compat with lxc-reference package, hopefully temporary
- template_filename_lxcreference = os.path.join(Sliver_LXC.REF_IMG_BASE_DIR,'config_template.xml')
template_filename_sliceimage = os.path.join(Sliver_LXC.REF_IMG_BASE_DIR,'lxc_template.xml')
- if os.path.isfile (template_filename_lxcreference):
- logger.log("WARNING: using compat template %s"%template_filename_lxcreference)
- template_filename=template_filename_lxcreference
- elif os.path.isfile (template_filename_sliceimage):
+ if os.path.isfile (template_filename_sliceimage):
logger.log("WARNING: using compat template %s"%template_filename_sliceimage)
template_filename=template_filename_sliceimage
else:
- logger.log("Cannot find XML template")
- logger.log("neither %s"%template_filename_lxcreference)
- logger.log("nor %s"%template_filename_sliceimage)
+ logger.log("Cannot find XML template %s"%template_filename_sliceimage)
return
try:
with open(template_filename) as f:
dom = conn.lookupByName(name)
except:
dom = conn.defineXML(xml)
- logger.verbose('lxc_create: %s -> %s'%(name, lv.debuginfo(dom)))
+ logger.verbose('lxc_create: %s -> %s'%(name, sliver_libvirt.debuginfo(dom)))
@staticmethod
def destroy(name):
logger.verbose ('sliver_lxc: %s destroy'%(name))
- conn = lv.getConnection(Sliver_LXC.TYPE)
+ conn = sliver_libvirt.getConnection(Sliver_LXC.TYPE)
containerDir = Sliver_LXC.CON_BASE_DIR + '/%s'%(name)
# Destroy libvirt domain
dom = conn.lookupByName(name)
except:
- logger.verbose('sliver_lxc: Domain %s does not exist! UNEXPECTED'%name)
- return
+ logger.verbose('sliver_lxc: Domain %s does not exist!' % name)
try:
dom.destroy()
except:
- logger.verbose('sliver_lxc: Domain %s not running... continuing.'%name)
+ logger.verbose('sliver_lxc: Domain %s not running... continuing.' % name)
- dom.undefine()
+ try:
+ dom.undefine()
+ except:
+ logger.verbose('sliver_lxc: Domain %s is not defined... continuing.' % name)
# Remove user after destroy domain to force logout
command = ['/usr/sbin/userdel', '-f', '-r', name]