"""LXC slivers"""
-import accounts
import logger
import subprocess
-import os
+import os, os.path
import libvirt
import sys
from string import Template
import bwlimit
import sliver_libvirt as lv
-
class Sliver_LXC(lv.Sliver_Libvirt):
"""This class wraps LXC commands"""
-
- SHELL = '/bin/sshsh'
-
+
+ SHELL = '/bin/sshsh'
TYPE = 'sliver.LXC'
# Need to add a tag at myplc to actually use this account
# type = 'sliver.LXC'
@staticmethod
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)
-
- ''' Create dirs, copy fs image, lxc_create '''
+
# Get the type of image from vref myplc tags specified as:
# pldistro = lxc
# fcdistro = squeeze
# arch x86_64
vref = rec['vref']
if vref is None:
- logger.log('sliver_libvirt: %s: WARNING - no vref attached defaults to lxc-debian' % (name))
- vref = "lxc-squeeze-x86_64"
+ logger.log('sliver_libvirt: %s: WARNING - no vref attached defaults to lxc-f14' % (name))
+ vref = "lxc-f14-x86_64"
refImgDir = os.path.join(Sliver_LXC.REF_IMG_BASE_DIR, vref)
containerDir = os.path.join(Sliver_LXC.CON_BASE_DIR, name)
# 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))
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)
+ command = ['chmod', '755', containerDir]
+ logger.log_call(command, timeout=15*60)
+
+ # customize prompt for slice owner
+ dot_profile=os.path.join(containerDir,"root/.profile")
+ with open(dot_profile,'w') as f:
+ f.write("export PS1='%s@\H \$ '\n"%(name))
# TODO: set quotas...
# Set hostname. A valid hostname cannot have '_'
- with open(os.path.join(containerDir, 'etc/hostname'), 'w') as f:
- print >>f, name.replace('_', '-')
+ #with open(os.path.join(containerDir, 'etc/hostname'), 'w') as f:
+ # print >>f, name.replace('_', '-')
# Add slices group if not already present
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', '*']
logger.log_call(command, timeout=15*60)
# guest?
command = ['su', '-s', '/bin/bash', '-c', 'ssh-keygen -t rsa -N "" -f /home/%s/.ssh/id_rsa'%(name)]
logger.log_call(command, timeout=15*60)
-
+
command = ['chown', '-R', '%s.slices'%name, '/home/%s/.ssh'%name]
logger.log_call(command, timeout=15*60)
-
+
command = ['mkdir', '%s/root/.ssh'%containerDir]
logger.log_call(command, timeout=15*60)
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):
+ 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)
+ return
try:
- with open(Sliver_LXC.REF_IMG_BASE_DIR + '/config_template.xml') as f:
+ with open(template_filename) as f:
template = Template(f.read())
xml = template.substitute(name=name, xid=xid)
except IOError:
- logger.log('Cannot find XML template file')
+ logger.log('Failed to parse or use XML template file %s'%template_filename)
return
-
+
# Lookup for the sliver before actually
# defining it, just in case it was already defined.
try:
def destroy(name):
logger.verbose ('sliver_lxc: %s destroy'%(name))
conn = lv.getConnection(Sliver_LXC.TYPE)
-
+
containerDir = Sliver_LXC.CON_BASE_DIR + '/%s'%(name)
try:
logger.verbose('sliver_lxc: Domain %s does not exist! UNEXPECTED'%name)
return
- try:
+ try:
dom.destroy()
except:
logger.verbose('sliver_lxc: Domain %s not running... continuing.'%name)
-
+
dom.undefine()
# Remove user after destroy domain to force logout
command = ['/usr/sbin/userdel', '-f', '-r', name]
logger.log_call(command, timeout=15*60)
-
+
# Remove rootfs of destroyed domain
command = ['btrfs', 'subvolume', 'delete', containerDir]
logger.log_call(command, timeout=15*60)
git://git.onelab.eu / nodemanager.git / blobdiff