X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=sliver_libvirt.py;h=6f4cce164ab7afb44da95635cd0f907792df48db;hb=ac8187d5ee8c4c5781ea16af038bdb2818607bfa;hp=209cb71bfab972d0cadf6de38e14e97f28f827f9;hpb=27cb8f7b65340c134d7d36f5eeef555592f73d31;p=nodemanager.git diff --git a/sliver_libvirt.py b/sliver_libvirt.py index 209cb71..6f4cce1 100644 --- a/sliver_libvirt.py +++ b/sliver_libvirt.py @@ -1,18 +1,16 @@ """LibVirt slivers""" -import accounts -import logger -import subprocess -import os -import os.path -import libvirt import sys -import shutil -import bwlimit -import cgroups +import os, os.path +import subprocess import pprint -from string import Template +import libvirt + +from account import Account +import logger +import plnode.bwlimit as bwlimit +import cgroups STATES = { libvirt.VIR_DOMAIN_NOSTATE: 'no state', @@ -26,23 +24,25 @@ STATES = { connections = dict() -# Helper methods +# Common Libvirt code -def getConnection(sliver_type): - # TODO: error checking - # vtype is of the form sliver.[LXC/QEMU] we need to lower case to lxc/qemu - vtype = sliver_type.split('.')[1].lower() - uri = vtype + '://' - return connections.setdefault(uri, libvirt.open(uri)) +class Sliver_Libvirt(Account): -def debuginfo(dom): - ''' Helper method to get a "nice" output of the info struct for debug''' - [state, maxmem, mem, ncpu, cputime] = dom.info() - return '%s is %s, maxmem = %s, mem = %s, ncpu = %s, cputime = %s' % (dom.name(), STATES.get(state, state), maxmem, mem, ncpu, cputime) + # Helper methods -# Common Libvirt code + @staticmethod + def getConnection(sliver_type): + # TODO: error checking + # vtype is of the form sliver.[LXC/QEMU] we need to lower case to lxc/qemu + vtype = sliver_type.split('.')[1].lower() + uri = vtype + '://' + return connections.setdefault(uri, libvirt.open(uri)) -class Sliver_Libvirt(accounts.Account): + @staticmethod + def debuginfo(dom): + ''' Helper method to get a "nice" output of the info struct for debug''' + [state, maxmem, mem, ncpu, cputime] = dom.info() + return '%s is %s, maxmem = %s, mem = %s, ncpu = %s, cputime = %s' % (dom.name(), STATES.get(state, state), maxmem, mem, ncpu, cputime) def __init__(self, rec): self.name = rec['name'] @@ -55,14 +55,18 @@ class Sliver_Libvirt(accounts.Account): self.rspec = {} self.slice_id = rec['slice_id'] self.enabled = True - self.conn = getConnection(rec['type']) + self.conn = Sliver_Libvirt.getConnection(rec['type']) self.xid = bwlimit.get_xid(self.name) + dom = None try: - self.dom = self.conn.lookupByName(self.name) + dom = self.conn.lookupByName(self.name) except: - logger.log('sliver_libvirt: Domain %s does not exist ' \ - 'UNEXPECTED: %s'%(self.name, sys.exc_info()[1])) + logger.log('sliver_libvirt: Domain %s does not exist. ' \ + 'Will try to create it again.' % (self.name)) + self.__class__.create(rec['name'], rec) + dom = self.conn.lookupByName(self.name) + self.dom = dom def start(self, delay=0): ''' Just start the sliver ''' @@ -157,5 +161,5 @@ class Sliver_Libvirt(accounts.Account): cgroups.write(self.name, 'cpu.shares', cpu_share) # Call the upper configure method (ssh keys...) - accounts.Account.configure(self, rec) + Account.configure(self, rec)