import logger
import subprocess
import os
+import libvirt
+import sys
+from string import Template
+import sliver_libvirt as lv
+
+URI = 'lxc://'
class Sliver_LXC(accounts.Account):
"""This class wraps LXC commands"""
-
- SHELL = '/bin/sh'
- # Using /bin/bash triggers destroy root/site_admin destr
+
+ SHELL = '/bin/sshsh'
+
TYPE = 'sliver.LXC'
# Need to add a tag at myplc to actually use this account
# type = 'sliver.LXC'
- def __init__(self, rec):
- self.name = rec['name']
- print "LXC __init__ %s"%(self.name)
- logger.verbose ('sliver_lxc: %s init'%self.name)
-
- self.dir = '/vservers/lxc_%s'%(self.name)
- if not (os.path.isdir(self.dir) and
- os.access(self.dir, os.R_OK | os.W_OK | os.X_OK)):
- raise NoSuchVServer, "no such vserver: " + self.name
- self.config = '/%s/config'%(self.dir)
- self.fstab = '/%s/fstab'%(self.dir)
- self.lxc_log = '/%s/lxc.log'%(self.dir)
- self.keys = ''
- self.rspec = {}
- self.slice_id = rec['slice_id']
- self.disk_usage_initialized = False
- self.initscript = ''
- self.enabled = True
- self.configure(rec)
@staticmethod
- def create(name, rec = None):
- ''' Create dirs, copy fs image, lxc_create '''
- print "LXC create %s"%(name)
- logger.verbose ('sliver_lxc: %s create'%name)
- dir = '/vservers/%s'%(name)
- config = '%s/config'%(dir)
- lxc_log = '%s/lxc.log'%(dir)
+ def create(name, rec=None):
+ conn = lv.getConnection(URI)
- if not (os.path.isdir(dir) and
- os.access(dir, os.R_OK | os.W_OK | os.X_OK)):
- print 'lxc_create: directory %s does not exist or wrong perms'%(dir)
+ # Template for libvirt sliver configuration
+ try:
+ with open('/vservers/.lvref/config_template.xml') as f:
+ template = Template(f.read())
+ config = template.substitute(name=name)
+ except IOError:
+ logger.log('Cannot find XML template file')
return
- # Assume for now that the directory is there and with a FS
- command=[]
- # be verbose
- command += ['/bin/bash','-x',]
- command += ['/usr/bin/lxc-create', '-n', name, '-f', config, '&']
- print command
- print subprocess.call(command, stdin=open('/dev/null', 'r'), stdout=open(lxc_log, 'a+'), stderr=subprocess.STDOUT, shell=False)
+ lv.create(name, config, rec, conn)
+
@staticmethod
def destroy(name):
- ''' lxc_destroy '''
- print "LXC destroy %s"%(name)
- dir = '/vservers/lxc_%s'%(name)
- lxc_log = '%s/lxc.log'%(dir)
- command=[]
- # be verbose
- command += ['/bin/bash','-x',]
- command += ['/usr/bin/lxc-destroy', '-n', name]
-
- subprocess.call(command, stdin=open('/dev/null', 'r'), stdout=open(lxc_log, 'a+'), stderr=subprocess.STDOUT, shell=False)
- print "LXC destroy DONE"
+ conn = lv.getConnection(URI)
+ lv.destroy(name, conn)
- def configure(self, rec):
- print "LXC configure %s"%(self.name)
+ def __init__(self, rec):
+ self.name = rec['name']
+ logger.verbose ('sliver_lxc: %s init'%(self.name))
+
+ self.dir = '/vservers/%s'%(self.name)
+
+ # Assume the directory with the image and config files
+ # are in place
+
+ self.keys = ''
+ self.rspec = {}
+ self.slice_id = rec['slice_id']
+ self.disk_usage_initialized = False
+ self.initscript = ''
+ self.enabled = True
+ self.conn = lv.getConnection(URI)
+ try:
+ self.container = self.conn.lookupByName(self.name)
+ except:
+ logger.verbose('sliver_libvirt: Unexpected error on %s: %s'%(self.name, sys.exc_info()[0]))
def start(self, delay=0):
- ''' Check existence? lxc_start '''
- print "LXC start %s"%(self.name)
- command=[]
- # be verbose
- command += ['/bin/bash','-x',]
- command += ['/usr/bin/lxc-start', '-n', self.name, '-d']
- print command
- subprocess.call(command, stdin=open('/dev/null', 'r'), stdout=open(self.lxc_log, 'w+'), stderr=subprocess.STDOUT, shell=False)
+ lv.start(self.container)
def stop(self):
- ''' lxc_stop '''
- print "LXC stop %s"%(self.name)
-
+ lv.stop(self.container)
+
def is_running(self):
- print "LXC is_running %s"%(self.name)
- command = []
- command += ['/usr/bin/lxc-info -n %s'%(self.name)]
- print command
- p = subprocess.Popen(command, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
- state = p.communicate()[0].split(' ')[2]
- print state
- if state == 'RUNNING': return True
- else: return False
+ lv.is_running(self.container)
-
+ def configure(self, rec):
+ ''' Allocate resources and fancy configuration stuff '''
+ logger.verbose('sliver_libvirt: %s configure'%(self.name))
+ accounts.Account.configure(self, rec)