def activate_trial_license(self):
is_license = self.check_trial_license()
if not is_license:
#print "activate trial0 license"
do_cmd("activate_license -k CLLT3L-CSKKEY-2B1MWZ-TP2FGO-1BL8ZY-FF0U08-CIWNIA -f trial0")
else:
print "License existed"
def set_hostname(self, hostname):
hostname_path = "/etc/hostname"
cur_hostname = do_cmd("hostname")
cur_hostname = cur_hostname.rstrip()
if hostname:
if hostname != cur_hostname:
#set hostname
do_cmd("hostname {}".format(hostname))
do_cmd("echo {} > {}".format(hostname, hostname_path))
def get_productname(self):
productNamePath = ("/tmp/productname")
productnameFileExisted = os.path.isfile(productNamePath)
if productnameFileExisted:
productname = do_cmd("cat {}".format(productNamePath))
productname = productname.rstrip()
else:
productname = do_cmd("/promise/bin/amidelnx/amidelnx_26_64 /SP | grep SP |grep \"R\"| sed \'s/.*Done //\'| awk -F\'\"\' \'{print $2}\' ")
productname = productname.rstrip()
os.system("echo {} > {}".format(productname, productNamePath))
return productname
def check_RAID(self, productname):
# if productname == A1100_productname:
if A1100_productname in productname:
is_OK = do_cmd("cliib -u admin -p password -C array -a list |grep -E '0'.*'OK' | awk '{ print $2}' | head -n 1")
is_OK2 = do_cmd("cliib -u admin -p password -C spare |grep -E '0'.*'OK' | awk '{ print $2}' | head -n 1")
if is_OK == "OK\n" and is_OK2 == "OK\n":
return 1
else:
return 0
else:#A1970
is_VD = do_cmd("{}/check_mcli_array.sh".format(exe_path))
if is_VD == "VD\nVD\nVD\n":
return 1
else:
return 0
def GET(self):
api_name = web.ctx.path.split("/")[-1]
command = os.path.abspath(api_name)
if os.path.exists(command):
output = do_cmd(command)
return ''.join([e.strip() for e in output.splitlines()[1:]])
else:
raise web.notfound()
def check_cluster_existed(self):
enabledRolesFileExisted = os.path.isfile("/etc/ezs3/enabled_roles")
if enabledRolesFileExisted:
enabledRoles = do_cmd("cat /etc/ezs3/enabled_roles")
enabledRoles = enabledRoles.rstrip()
if enabledRoles == "ezs3 ezgateway" or enabledRoles == "ezs3":
return 1
else:
return 0
def activate_perpetual_lic(self, is_connected):
if is_connected:
run_license = ""
run_license = raw_input("Run perpetual license activation?(yes/no, default: no)\n")
if not run_license:
run_license = "no"
print run_license
if run_license == "yes" or run_license == "y":
print "retrieving licenese from CRM..."
logger.info("retrieving licenese from CRM...")
do_cmd("clm -a retrievelic -t")
print "activating license..."
logger.info("activating license...")
do_cmd("clm -a activatelic")
else:
print "\n------------------------------------------------------------------------------------\n"
print("No access from outside network, please contact PROMISE Tech. for perpetual license.")
print "\n------------------------------------------------------------------------------------\n"
def create_volume(self):
print "creating storage volume..."
storage_path = "/etc/ezs3/storage.conf"
storage_path_existed = os.path.isfile(storage_path)
if not storage_path_existed:
do_cmd("echo \"[]\" > /etc/ezs3/storage.conf")
size_storage_file = os.path.getsize('/etc/ezs3/storage.conf')
#cw = ClusterWizard()#A1100
#dev_mapper = "222590001553018d6"
#dev_mapper_path = cw.get_dev_path()
# if productname == A1100_productname:
if A1100_productname in productname:
dev_mapper_path = cw.get_dev_path()
if (size_storage_file <4):#if /etc/ezs3/storage.conf no storage configuration
#os.system("/root/cluster_wizard/create_volume -p %s -n %s" %(dev_mapper_path , storage_vol_name))
if self.check_dev_mapper_A1100():
i=0
for dmp in dev_mapper_path:
os.system("{}/create_volume -p {} -n {}-{}".format(exe_path, dmp , storage_vol_name, i))
i = i+1
print ""
#os.system("./create_volume -p %s -n %s" %(dev_mapper_path , storage_vol_name))
#print ""
print "Creating storage volume done "
else:
#print "Number of device mapper: {}".format(self.count_dev_mapper())
#print "Number of drive: {}".format(self.count_phydrv_A1100())
print "Number of device mapper is incorrect, please check it or reboot."
sys.exit(0)
else:
print "Storage volume exsisted"
else:#A1970
dev_mapper_path_A1970 = cw.get_dev_path_A1970()
if (size_storage_file <4):#if /etc/ezs3/storage.conf no storage configuration
i=0
for dmpA in dev_mapper_path_A1970:
#do_cmd("/root/cluster_wizard/create_volume -p {} -n {}{}".format(dmpA , storage_vol_name, i))
os.system("{}/create_volume -p {} -n {}-{}".format(exe_path, dmpA , storage_vol_name, i))
i = i+1
print ""
print "Creating storage volume done "
else:
print "Storage volume exsisted"
def count_phydrv_A1100(self):
phydrv = do_cmd("cliib -u admin -p password -C phydrv")
#print phydrv
file_ = open('/tmp/cnt_drv', 'w')
file_.write("{}".format(phydrv))
line_count = 0
file_.close()
with open('/tmp/cnt_drv') as infp:
for line in infp:
if line.strip():
line_count += 1
line_count = line_count-3
logger.info("count_phydrv_A1100: {}".format(line_count))
return line_count
def set_timezone(self):
print "Setting timezone..."
c_timezone = do_cmd("cat /etc/timezone")
c_timezone = c_timezone.rstrip()
print ("----------------------------------------------")
print ("The current timezone is {}".format(c_timezone))
print ("----------------------------------------------")
reset_tz = raw_input("Would you like to set timezone? (yes/no, default: no):\n")
if reset_tz == "yes" or reset_tz == "y":
os.system("dpkg-reconfigure tzdata")
#print "restart cron"
os.system("service cron restart")
"Setting timezone done"
else:
print "No set timezone"
def set_timezone_auto(self):# needs to access outside network
print "Setting timezone automatically..."
T_Z = do_cmd("wget -O - -q http://geoip.ubuntu.com/lookup | sed -n -e \'s/.*<TimeZone>\\(.*\\)<\\/TimeZone>.*/\\1/p\'")
T_Z = T_Z.rstrip()
os.system("cp /usr/share/zoneinfo/{} /etc/localtime".format(T_Z))
time.strftime('%X %x %Z')
os.environ['TZ'] = '{}'.format(T_Z)
time.tzset()
time.strftime('%X %x %Z')
#tz = get_localzone()
#print "tz: {}".format(tz)
os.system("echo {} > /etc/timezone".format(T_Z))
new_time_zone = self.get_timezone()
print "Your time zone is {}.".format(new_time_zone)
#_timezone = do_cmd("cat /etc/timezone")
print "Setting timezone automatically done..."
def join_cluster(self, join_cluster_name):
enabledRolesFileExisted = os.path.isfile("/etc/ezs3/enabled_roles")
if enabledRolesFileExisted:
enabledRoles = do_cmd("cat /etc/ezs3/enabled_roles")
enabledRoles = enabledRoles.rstrip()
if enabledRoles == "ezs3 ezgateway" or enabledRoles == "ezs3":
print "cluster existed"
else:
print "joining a cluster {}...".format(join_cluster_name)
#if productname == A1100_productname:
if A1100_productname in productname:
#do_cmd("/root/cluster_wizard/join_cluster -p bond0 -s bond1 -n {}").format(join_cluster_name)
os.system("{}/join_cluster -p bond0 -s bond1 -n {}".format(exe_path, join_cluster_name))
print "joining a cluster {} done".format(join_cluster_name)
else: #A1970
os.system("{}/join_cluster -p bond0 -s bond1 -n {}".format(exe_path, join_cluster_name))
print "joining a cluster {} done".format(join_cluster_name)
print ""
def rescan_multipath():
sg = do_cmd("lsscsi -g |grep /dev/sg | grep Promise |awk '{ print $8}' | cut -c6-8")
host = do_cmd("ls -l /sys/class/fc_host | grep host | awk '{print $9}'")
#print s
sg_l = []
host_l = []
host_l.append(host.splitlines()[0])
host_l.append(host.splitlines()[1])
sg_l.append(sg.splitlines()[0])
sg_l.append(sg.splitlines()[1])
print "echo \"1\" > /sys/class/scsi_generic/sgx/device/delete"
for l in sg_l:
do_cmd("echo \"1\" > /sys/class/scsi_generic/{}/device/delete".format(l))
print "echo \"- - -\" > /sys/class/scsi_host/hostx/scan"
for k in host_l:
do_cmd("echo \"- - -\" > /sys/class/scsi_host/{}/scan".format(k))
def get_timezone(self):
c_timezone = do_cmd("cat /etc/timezone")
c_timezone = c_timezone.rstrip()
return c_timezone
def rescan_multipath():
sg = do_cmd("lsscsi -g |grep /dev/sg | grep Promise |awk '{ print $8}' | cut -c6-8")
host = do_cmd("ls -l /sys/class/fc_host | grep host | awk '{print $9}'")
#print s
sg_l = []
host_l = []
host_l.append(host.splitlines()[0])
host_l.append(host.splitlines()[1])
sg_l.append(sg.splitlines()[0])
sg_l.append(sg.splitlines()[1])
print "echo \"1\" > /sys/class/scsi_generic/sgx/device/delete"
for l in sg_l:
do_cmd("echo \"1\" > /sys/class/scsi_generic/{}/device/delete".format(l))
print "echo \"- - -\" > /sys/class/scsi_host/hostx/scan"
for k in host_l:
do_cmd("echo \"- - -\" > /sys/class/scsi_host/{}/scan".format(k))
if __name__ == "__main__":
# print "destroying node"
# do_cmd("./destroy_node")
# print "deleting storage volume"
# do_cmd("echo \"[]\" > /etc/ezs3/storage.conf ")
# print "deleting license file"
# do_cmd("rm /etc/ezs3/license")
# print "destroying node"
print "destroying RAID"
do_cmd("multipath -F")
do_cmd("cliib -u admin -p password -C array -a del -d 0")
rescan_multipath()
print "rescan_multipath done"
#!/usr/bin/env python
import os, sys
import json
import StringIO
#from ConfigParser import SafeConfigParser
from ezs3.defaults import BigTeraDefaultSettings as defaults
import logging
from ezs3.log import EZLog
from ezs3.command import do_cmd
from ezs3.log import EZLog
from ezs3.utils import * #define logger
from local_network_config_class import *
from delete_array import *
#logger = EZLog.get_logger(__name__)
if __name__ == "__main__":
print "destroying node"
do_cmd("./destroy_node")
print "deleting storage volume"
do_cmd("echo \"[]\" > /etc/ezs3/storage.conf ")
print "deleting license file"
do_cmd("rm /etc/ezs3/license")
print "destroying node"
print "destroying RAID"
do_cmd("./delete_array.py")
#do_cmd("cliib -u admin -p password -C array -a del -d 0")
def get_hostname(self):
hostname = do_cmd("hostname")
hostname = hostname.rstrip()
return hostname
def set_RAID(self, productname):
#phdrv_count_A1100 = self.count_phydrv_A1100()
print "Setting RAID..."
logger.info("Setting RAID...")
#if productname == A1100_productname:
if A1100_productname in productname:
phdrv_count_A1100 = self.count_phydrv_A1100()
is_OK_1_array = do_cmd("cliib -u admin -p password -C array -a list |grep -E '0'.*'OK' | awk '{ print $2}' | head -n 1")
is_OK_1_spare = do_cmd("cliib -u admin -p password -C spare |grep -E '0'.*'OK' | awk '{ print $2}' | head -n 1")
#if is_OK == "OK\n":
# print("RAID existed")
if phdrv_count_A1100 ==16:
is_OK_1_array = do_cmd("cliib -u admin -p password -C array -a list |grep -E '0'.*'OK' | awk '{ print $2}' | head -n 1")
if is_OK_1_array == "OK\n":
print("RAID existed")
else:
do_cmd("cliib -u admin -p password -C array -a add -p1~15 -l\\\"raid=5\\\"")
self.rescan_multipath()
elif phdrv_count_A1100 ==32:
if is_OK_1_array == "OK\n":#need to grep and check 2 OK in the future
print("RAID existed")
else:
do_cmd("cliib -u admin -p password -C array -a add -p1~15 -l\\\"raid=5\\\"")
do_cmd("cliib -u admin -p password -C array -a add -p17~31 -l\\\"raid=5\\\"")
self.rescan_multipath()
elif phdrv_count_A1100 ==48:
if is_OK_1_array == "OK\n":#need to grep and check 3 OK in the future
print("RAID existed")
else:
do_cmd("cliib -u admin -p password -C array -a add -p1~15 -l\\\"raid=5\\\"")
do_cmd("cliib -u admin -p password -C array -a add -p17~31 -l\\\"raid=5\\\"")
do_cmd("cliib -u admin -p password -C array -a add -p33~47 -l\\\"raid=5\\\"")
self.rescan_multipath()
elif phdrv_count_A1100 ==64:
if is_OK_1_array == "OK\n":#need to grep and check 4 OK in the future
print("RAID existed")
else:
do_cmd("cliib -u admin -p password -C array -a add -p1~15 -l\\\"raid=5\\\"")
do_cmd("cliib -u admin -p password -C array -a add -p17~31 -l\\\"raid=5\\\"")
do_cmd("cliib -u admin -p password -C array -a add -p33~47 -l\\\"raid=5\\\"")
do_cmd("cliib -u admin -p password -C array -a add -p49~63 -l\\\"raid=5\\\"")
self.rescan_multipath()
elif phdrv_count_A1100 ==13: #test version
if is_OK_1_array == "OK\n":#need to grep and check 4 OK in the future
print("RAID existed")
else:
do_cmd("cliib -u admin -p password -C array -a add -p5~15 -l\\\"raid=5\\\"")
self.rescan_multipath()
else:
print("Physical drives are not enough")
sys.exit(0)
#spare drive
if phdrv_count_A1100 ==16:
is_OK_1_spare = do_cmd("cliib -u admin -p password -C spare |grep -E '0'.*'OK' | awk '{ print $2}' | head -n 1")
if is_OK_1_spare == "OK\n":
print("Hot spare drive existed")
else:
do_cmd("cliib -u admin -p password -C spare -a add -p 16 -t g -r y")
elif phdrv_count_A1100 ==32:
if is_OK_1_spare == "OK\n":#need to grep and check 2 OK in the future
print("Hot spare drive existed")
else:
do_cmd("cliib -u admin -p password -C spare -a add -p 16 -t g -r y")
do_cmd("cliib -u admin -p password -C spare -a add -p 32 -t g -r y")
elif phdrv_count_A1100 ==48:
if is_OK_1_spare == "OK\n":#need to grep and check 3 OK in the future
print("Hot spare drive existed")
else:
do_cmd("cliib -u admin -p password -C spare -a add -p 16 -t g -r y")
do_cmd("cliib -u admin -p password -C spare -a add -p 32 -t g -r y")
do_cmd("cliib -u admin -p password -C spare -a add -p 48 -t g -r y")
elif phdrv_count_A1100 ==64:
if is_OK_1_spare == "OK\n":#need to grep and check 4 OK in the future
print("Hot spare drive existed")
else:
do_cmd("cliib -u admin -p password -C spare -a add -p 16 -t g -r y")
do_cmd("cliib -u admin -p password -C spare -a add -p 32 -t g -r y")
do_cmd("cliib -u admin -p password -C spare -a add -p 48 -t g -r y")
do_cmd("cliib -u admin -p password -C spare -a add -p 64 -t g -r y")
elif phdrv_count_A1100 ==13:#test version
print ("pd = 13")
if is_OK_1_spare == "OK\n":#need to grep and check 4 OK in the future
print("Hot spare drive existed")
else:
do_cmd("cliib -u admin -p password -C spare -a add -p 16 -t g -r y")
else:
print("Physical drives are not enough")
sys.exit(0)
else:#A1970
is_VD = do_cmd("{}/check_mcli_array.sh".format(exe_path))
if is_VD == "VD\nVD\nVD\n":
print("RAID existed")
else:
do_cmd("{}/run_mcli.sh".format(exe_path))
print "Setting RAID done"
logger.info("Setting RAID done")
def set_network(self, pub_ip, netmask_pub_ip,gateway_pub_ip,dns_pub_ip, storage_ip, netmask_storage_ip, productname, A1100_productname):
TEST198_IP = 0
tmp_path = "/tmp/network/interfaces"
net_path= "/etc/network/interfaces"
interfaces_exist= os.path.isfile(tmp_path)
dir_exist = os.path.isdir("/tmp/network")
if not dir_exist:
do_cmd("mkdir /tmp/network/")
if not interfaces_exist:
do_cmd("touch /tmp/network/interfaces")
# print "productname = %s" % (productname)
# print pub_ip
#if productname == A1100_productname:
if A1100_productname in productname:
#turn off eth0~eth3 to avoid avahi issue
do_cmd("ifconfig eth0 0.0.0.0; ifconfig eth0 down")
do_cmd("ifconfig eth1 0.0.0.0; ifconfig eth1 down")
do_cmd("ifconfig eth2 0.0.0.0; ifconfig eth2 down")
do_cmd("ifconfig eth3 0.0.0.0; ifconfig eth3 down")
#print productname
file = open(tmp_path, 'w')
file.write("auto lo eth7 eth6 eth5 eth4 bond0 bond1\n")
#if TEST198_IP:
# file.write("eth0\n")
file.write("iface bond0 inet static\n")
file.write(" bond_miimon 100\n")
file.write(" bond_slaves none\n")
if dns_pub_ip:
file.write(" dns-nameservers %s\n" % (dns_pub_ip))
file.write(" bond_mode balance-alb\n")
file.write(" address %s \n" % (pub_ip))
file.write(" netmask %s \n" % (netmask_pub_ip))
if gateway_pub_ip:
file.write(" gateway %s \n" % (gateway_pub_ip))
file.write("iface bond1 inet static\n")
file.write(" bond_miimon 100\n")
file.write(" bond_slaves none\n")
file.write(" bond_mode balance-alb\n")
file.write(" address %s \n" % (storage_ip))
file.write(" netmask %s \n" % (netmask_storage_ip))
file.write("iface lo inet loopback\n")
file.write("iface eth7 inet manual\n")
file.write(" bond_master bond1\n")
file.write("iface eth6 inet manual\n")
file.write(" bond_master bond1\n")
file.write("iface eth5 inet manual\n")
file.write(" bond_master bond0\n")
file.write("iface eth4 inet manual\n")
file.write(" bond_master bond0\n")
#if TEST198_IP:
# file.write("iface eth0 inet static\n")
# file.write(" address 192.168.205.198\n")
# file.write(" netmask 255.255.255.0\n")
# file.write(" gateway 192.168.205.254\n")
# file.write(" dns-nameservers 192.168.202.108\n")
file.close()
else: #A1970
file = open(tmp_path, 'w')
file.write("auto lo eth3 eth2 eth1 eth0 bond0 bond1\n")
file.write("iface bond0 inet static\n")
file.write(" bond_miimon 100\n")
file.write(" bond_slaves none\n")
if dns_pub_ip:
file.write(" dns-nameservers %s\n" % (dns_pub_ip))
file.write(" bond_mode balance-alb\n")
file.write(" address %s \n" % (pub_ip))
file.write(" netmask %s \n" % (netmask_pub_ip))
if gateway_pub_ip:
file.write(" gateway %s \n" % (gateway_pub_ip))
file.write("iface bond1 inet static\n")
file.write(" bond_miimon 100\n")
file.write(" bond_slaves none\n")
file.write(" bond_mode balance-alb\n")
file.write(" address %s \n" % (storage_ip))
file.write(" netmask %s \n" % (netmask_storage_ip))
file.write("iface lo inet loopback\n")
file.write("iface eth3 inet manual\n")
file.write(" bond_master bond1\n")
file.write("iface eth2 inet manual\n")
file.write(" bond_master bond1\n")
file.write("iface eth1 inet manual\n")
file.write(" bond_master bond0\n")
file.write("iface eth0 inet manual\n")
file.write(" bond_master bond0\n")
file.close()
tmp_network_interface = do_cmd("cat /tmp/network/interfaces")
etc_network_interface = do_cmd("cat /etc/network/interfaces")
if tmp_network_interface != etc_network_interface:
#print ("copy network interfaces")
do_cmd("cp /tmp/network/interfaces /etc/network/interfaces")
do_cmd("/etc/init.d/networking restart")
def set_network_quorum(self, storage_ip, netmask_storage_ip, storage_nic):
TEST198_IP = 0
TEST35_IP = 0
tmp_path = "/tmp/network/interfaces"
net_path= "/etc/network/interfaces"
interfaces_exist= os.path.isfile(tmp_path)
dir_exist = os.path.isdir("/tmp/network")
if not dir_exist:
do_cmd("mkdir /tmp/network/")
if not interfaces_exist:
do_cmd("touch /tmp/network/interfaces")
# print "productname = %s" % (productname)
# print pub_ip
if storage_nic =="bond0":
file = open(tmp_path, 'w')
file.write("auto lo eth5 eth4 bond0\n")
if TEST35_IP:
file.write("auto eth0\n")
if TEST198_IP:
file.write("auto eth0\n")
file.write("iface bond0 inet static\n")
file.write(" bond_miimon 100\n")
file.write(" bond_slaves none\n")
file.write(" bond_mode balance-alb\n")
file.write(" address %s \n" % (storage_ip))
file.write(" netmask %s \n" % (netmask_storage_ip))
file.write("iface lo inet loopback\n")
file.write("iface eth5 inet manual\n")
file.write(" bond_master bond0\n")
file.write("iface eth4 inet manual\n")
file.write(" bond_master bond0\n")
if TEST35_IP:
file.write("iface eth0 inet static\n")
file.write(" address 192.168.205.35\n")
file.write(" netmask 255.255.255.0\n")
file.write(" gateway 192.168.205.254\n")
file.write(" dns-nameservers 192.168.202.108\n")
if TEST198_IP:
file.write("iface eth0 inet static\n")
file.write(" address 192.168.205.198\n")
file.write(" netmask 255.255.255.0\n")
file.write(" gateway 192.168.205.254\n")
file.write(" dns-nameservers 192.168.202.108\n")
file.close()
elif "eth" in straoge_nic:
file = open(tmp_path, 'w')
file.write("auto lo eth7 eth6 %s eth4 eth0 bond1\n" %(straoge_nic))
file.write("iface lo inet loopback\n")
file.write("iface %s inet static\n" % (storage_nic))
file.write(" address %s \n" % (storage_ip))
file.write(" netmask %s \n" % (netmask_storage_ip))
if TEST198_IP:
file.write("iface eth0 inet static\n")
file.write(" address 192.168.205.198\n")
file.write(" netmask 255.255.255.0\n")
file.write(" gateway 192.168.205.254\n")
file.write(" dns-nameservers 192.168.202.108\n")
if TEST35_IP:
file.write("iface eth0 inet static\n")
file.write(" address 192.168.205.35\n")
file.write(" netmask 255.255.255.0\n")
file.write(" gateway 192.168.205.254\n")
file.write(" dns-nameservers 192.168.202.108\n")
file.close()
tmp_network_interface = do_cmd("cat /tmp/network/interfaces")
etc_network_interface = do_cmd("cat /etc/network/interfaces")
if tmp_network_interface != etc_network_interface:
#print ("copy network interfaces")
do_cmd("cp /tmp/network/interfaces /etc/network/interfaces")
do_cmd("/etc/init.d/networking restart")
if is_clus_existed:
print "Cluster existed"
print "Exit the wizard"
sys.exit(0)
replication = ""
EZLog.init_handler(
logging.DEBUG, "/var/log/ezcloudstor/promise.log"
)
productname = cw.get_productname()
print "Running cluster wizard..."
logger.info("Running cluster wizard...")
logger.info("Setting Network...")
lnc = Local_network_config()
netmask_pub_ip = "255.255.255.0"
netmask_storage_ip = "255.255.255.0"
c_pub_ip = do_cmd("/sbin/ifconfig bond0 | grep \'inet addr:\' | cut -d: -f2 | awk \'{ print $1}\'")
c_pub_ip = c_pub_ip.rstrip()
current_pub_ip = c_pub_ip.rstrip()
c_storage_ip = do_cmd("/sbin/ifconfig bond1 | grep \'inet addr:\' | cut -d: -f2 | awk \'{ print $1}\'")
c_storage_ip = c_storage_ip.rstrip()
current_storage_ip = c_storage_ip.rstrip()
hostname = cw.get_hostname()
new_hostname = raw_input("Please enter a new hostname (e.g., hostname01) or accept the current hostname: {} with Enter.\n".format(hostname))
if not new_hostname:
new_hostname = hostname
lnc.print_pub_ip_description()
# Input pub IP
if not current_pub_ip:
pub_ip = raw_input("Please enter a public IP (e.g., 10.0.0.10):")
while not cw.is_valid_ipv4_address(pub_ip):
pub_ip = raw_input("Please enter a valid public IP (e.g., 10.0.0.10):")