def _lb_single(host):
""" 安装单台 lb.
"""
# 执行安装 fullnat 的命令.
rc, so, se = utils.remote_cmd(host, LVS_FULLNAT_CMD)
# 安装 lvs fullnat 完成后会重启系统, 当 ping 不通时,
# 说明已经重启系统.
checkcmd = "! ping -c 3 %s &>/dev/null" % host
ret = utils.check_wait_null(checkcmd, timeinit=0,
interval=5, timeout=2700)
if not ret:
return False
# 当 ping 通时, 说明已经重启完毕.
checkcmd = "ping -c 3 %s &>/dev/null" % host
ret = utils.check_wait_null(checkcmd, timeinit=0,
interval=5, timeout=1200)
return {"host": host, "result": ret}
def lips(lb, ip, lips):
""" 配置 lb 的 lips.
"""
# 因为改了 DNS, 先清空本地 known_hosts 文件.
cmd = "cat /dev/null >%s" % LOCAL_SSH_KNOWN_HOSTS
rc, so, se = utils.shell(cmd)
if rc != 0:
message = "clean %s failed." % LOCAL_SSH_KNOWN_HOSTS
logger.error(message)
return False
message = "Waiting for network administor to change "\
"network conf for %s" % lb
logger.info(message)
# 发邮件让网络工程师修改 lb 的网络配置.
subject = u"[接入集群]请在一小时之内修改%s的网络设置, 否则集群会建立失败" % lb
context = ""
mail.mail(None, subject, context)
# 检查是否能够 ping 通.
time.sleep(120)
checkcmd = "ping -c 3 %s &>/dev/null" % ip
ret = utils.check_wait_null(checkcmd, timeinit=0,
interval=5, timeout=3600)
if not ret:
logger.error("Ping failed, lb:%s, ip:%s" % (lb, ip))
return False
# 配置 lip.
cmd = "sudo -i wdconfig lvsfullnat_lip"
rc, so, se = utils.remote_cmd(ip, cmd)
if rc != 0:
message = "Cfg lips failed, lb:%s, error:%s" % (lb, se)
logger.error(message)
return False
cmd = "cd /tmp/post_config/lvsfullnat_lip_config && "\
"sudo sh lvsfullnat_lip_config.sh %s " % " ".join(lips)
rc, so, se = utils.remote_cmd(ip, cmd)
if rc != 0:
message = "Cfg lips failed, lb:%s, error:%s" % (lb, se)
logger.error(message)
return False
return True
