def actionTcmCreate(rollback, param):
'''执行tcm_node --block iblock_0/<bs_name> <block_dev>
@param rollback 回滚类的一个实例
@param param 存储了创建lio中tcm的多个参数的一个列表, (前缀,硬盘名)
'''
osCmd = "tcm_node --block iblock_0/%s_%s /dev/%s" % (param[0], param[1], param[1])
runExec(osCmd)
rollback.actions.append((rollbackTcmCreate, param))
def actionTcmCreate(rollback, param):
'''执行tcm_node --block iblock_0/<bs_name> <block_dev>
@param rollback 回滚类的一个实例
@param param 存储了创建lio中tcm的多个参数的一个列表, (前缀,硬盘名)
'''
osCmd = "tcm_node --block iblock_0/%s_%s /dev/%s" % (param[0], param[1],
param[1])
runExec(osCmd)
rollback.actions.append((rollbackTcmCreate, param))
def actionLioAddLun(rollback, param):
'''lio中增加lun
@param rollback 回滚类的一个实例
@param param 存储了lio中增加lun的多个参数的一个列表 (targetName, 前缀, lvName)
'''
osCmd = "lio_node --addlun %s 1 0 iscsi00 iblock_0/%s_%s" % (param[0], param[1], param[2])
runExec(osCmd)
rollback.actions.append((rollbackLioAddLun, param))
def rollbackLioAddLun(param):
'''lio中增加lun的回滚函数
@param param 存储了lio中增加lun的多个参数的一个列表
'''
osCmd = "lio_node --deliqn=%s" % param[0]
try:
runExec(osCmd)
except Exception, e:
iSCSILogger.error("rollback failed: run %s failed : %s " % (osCmd, repr(e)))
def actionLioAddLun(rollback, param):
'''lio中增加lun
@param rollback 回滚类的一个实例
@param param 存储了lio中增加lun的多个参数的一个列表 (targetName, 前缀, lvName)
'''
osCmd = "lio_node --addlun %s 1 0 iscsi00 iblock_0/%s_%s" % (
param[0], param[1], param[2])
runExec(osCmd)
rollback.actions.append((rollbackLioAddLun, param))
def rollbackLioAddLun(param):
'''lio中增加lun的回滚函数
@param param 存储了lio中增加lun的多个参数的一个列表
'''
osCmd = "lio_node --deliqn=%s" % param[0]
try:
runExec(osCmd)
except Exception, e:
iSCSILogger.error("rollback failed: run %s failed : %s " %
(osCmd, repr(e)))
def rollbackTcmCreate(param):
'''定义创建lio中tcm后端存储的回滚操作
@param param 存储了创建lio中tcm的多个参数的一个列表 (前缀,硬盘名)
'''
lioCfgDir = "/sys/kernel/config/target/core/iblock_0/%s_%s" % (param[0], param[1])
if os.path.exists(lioCfgDir):
try:
osCmd = "tcm_node --freedev iblock_0/%s_%s" % (param[0], param[1])
runExec(osCmd)
except Exception, e:
iSCSILogger.error("rollback tcm_node %s_%s failed: %s " % (param[0], param[1], str(e)))
def purgeIqn(self, targetName):
'''清理LIO中的iscsi target
@param targetName Iscsi target名称
'''
cfgIscsiFile = "/sys/kernel/config/target/iscsi/%s" % (targetName)
if os.path.exists(cfgIscsiFile):
osCmd = "lio_node --deltpg %s 1" % (targetName)
try:
runExec(osCmd)
except Exception:
pass
def purgeTcm(self, lvName):
'''清理LIO中tcm的配置
@param lvName 逻辑卷名称
'''
lioCfgDir = "/sys/kernel/config/target/core/iblock_0/%s_%s" % ("test", lvName)
if os.path.exists(lioCfgDir):
try:
osCmd = "tcm_node --freedev iblock_0/%s_%s" % ("test", lvName)
runExec(osCmd)
except Exception:
pass
def purgeIqn(self, targetName):
'''清理LIO中的iscsi target
@param targetName Iscsi target名称
'''
cfgIscsiFile = "/sys/kernel/config/target/iscsi/%s" % (targetName)
if os.path.exists(cfgIscsiFile):
osCmd = "lio_node --deltpg %s 1" % (targetName)
try:
runExec(osCmd)
except Exception:
pass
def rollbackTcmCreate(param):
'''定义创建lio中tcm后端存储的回滚操作
@param param 存储了创建lio中tcm的多个参数的一个列表 (前缀,硬盘名)
'''
lioCfgDir = "/sys/kernel/config/target/core/iblock_0/%s_%s" % (param[0],
param[1])
if os.path.exists(lioCfgDir):
try:
osCmd = "tcm_node --freedev iblock_0/%s_%s" % (param[0], param[1])
runExec(osCmd)
except Exception, e:
iSCSILogger.error("rollback tcm_node %s_%s failed: %s " %
(param[0], param[1], str(e)))
def purgeTcm(self, lvName):
'''清理LIO中tcm的配置
@param lvName 逻辑卷名称
'''
lioCfgDir = "/sys/kernel/config/target/core/iblock_0/%s_%s" % ("test",
lvName)
if os.path.exists(lioCfgDir):
try:
osCmd = "tcm_node --freedev iblock_0/%s_%s" % ("test", lvName)
runExec(osCmd)
except Exception:
pass
def sendTarget(self, lvName, initiatorName):
'''输出Target
@param lvName 输出target
@param initiatorName 允许访问此逻辑卷的iscsi initor的名称
@return 返回一个TargetInfo的结构体
'''
iSCSILogger.info("Call interface sendTarget(%s, %s)..." %
(lvName, initiatorName))
try:
rollback = ActionRollback()
# 执行 tcm_node --block iblock_0/%s_%s /dev/%s" % (param[0], param[1], param[1])
actionTcmCreate(rollback, ('test', lvName))
# 定义iqn前缀
iqn = "test"
# 组装targetName iqn+ 倒装域名 + lvName
#targetName = "%s:%d:%s" % (iqn, time.time() * 1000, lvName)
targetName = "%s:%d:%s" % (iqn, 123456, lvName)
targetInfo = TargetInfo()
targetInfo.targetName = targetName
#targetInfo.targetPort = VSConfig.getIscsiPort()
targetInfo.chapUser = '******'
#targetInfo.chapPass = getRandomPass()
targetInfo.chapPass = '******'
# 执行 lio_node --addlun %s 1 0 iscsi00 iblock_0/%s_%s" %(targetName, VSConfig.getVgName(), lvName)
actionLioAddLun(rollback, (targetName, 'test', lvName))
osCmd = "lio_node --addnp %s 1 %s:%d" % (targetName, "0.0.0.0",
3260)
runExec(osCmd)
osCmd = "lio_node --enableauth %s 1" % (targetName)
runExec(osCmd)
osCmd = "lio_node --addlunacl %s 1 %s 0 0" % (targetName,
initiatorName)
runExec(osCmd)
osCmd = "lio_node --setchapauth %s 1 %s %s %s" % (
targetName, initiatorName, targetInfo.chapUser,
targetInfo.chapPass)
runExec(osCmd)
osCmd = "lio_node --settpgattr=%s 1 cache_dynamic_acls 0" % (
targetName)
runExec(osCmd)
osCmd = "lio_node --enabletpg %s 1" % (targetName)
runExec(osCmd)
print "sendTarget success"
iSCSILogger.info("sendTarget success")
except Exception, e:
errMsg = traceback.format_exc()
rollback.rollback()
iSCSILogger.error(errMsg)
raise Exception
def sendTarget(self, lvName, initiatorName):
'''输出Target
@param lvName 输出target
@param initiatorName 允许访问此逻辑卷的iscsi initor的名称
@return 返回一个TargetInfo的结构体
'''
iSCSILogger.info("Call interface sendTarget(%s, %s)..." % (lvName, initiatorName))
try:
rollback = ActionRollback()
# 执行 tcm_node --block iblock_0/%s_%s /dev/%s" % (param[0], param[1], param[1])
actionTcmCreate(rollback, ('test', lvName))
# 定义iqn前缀
iqn ="test"
# 组装targetName iqn+ 倒装域名 + lvName
#targetName = "%s:%d:%s" % (iqn, time.time() * 1000, lvName)
targetName = "%s:%d:%s" % (iqn, 123456, lvName)
targetInfo = TargetInfo()
targetInfo.targetName = targetName
#targetInfo.targetPort = VSConfig.getIscsiPort()
targetInfo.chapUser = '******'
#targetInfo.chapPass = getRandomPass()
targetInfo.chapPass = '******'
# 执行 lio_node --addlun %s 1 0 iscsi00 iblock_0/%s_%s" %(targetName, VSConfig.getVgName(), lvName)
actionLioAddLun(rollback, (targetName, 'test', lvName))
osCmd = "lio_node --addnp %s 1 %s:%d" % (targetName, "0.0.0.0",3260)
runExec(osCmd)
osCmd = "lio_node --enableauth %s 1" % (targetName)
runExec(osCmd)
osCmd = "lio_node --addlunacl %s 1 %s 0 0" % (targetName, initiatorName)
runExec(osCmd)
osCmd = "lio_node --setchapauth %s 1 %s %s %s" % (targetName, initiatorName, targetInfo.chapUser, targetInfo.chapPass)
runExec(osCmd)
osCmd = "lio_node --settpgattr=%s 1 cache_dynamic_acls 0" % (targetName)
runExec(osCmd)
osCmd = "lio_node --enabletpg %s 1" % (targetName)
runExec(osCmd)
print "sendTarget success"
iSCSILogger.info("sendTarget success")
except Exception, e:
errMsg = traceback.format_exc()
rollback.rollback()
iSCSILogger.error(errMsg)
raise Exception
