Fix IP address after kernel 3.10.0-327.28.2.el7.x86_64 upgrade on Centos 7 (KVM Guest)

symptom: after schedule restart due to kernel upgrade to 3.10.0-327.28.2.el7.x86_64, something wrong happen to our guest KVM. Some network devices were disappeared. No more ensX device anymore.

Solution:

Note: this solution tested via host server (using virsh console) and ssh

Install Network Manager Text User Interface (TUI) 

# yum install NetworkManager-tui

Check your device status using Network Manager Command Line Interface (nmcli)

# nmcli dev status

DEVICE  TYPE      STATE         CONNECTION

eth0    ethernet  connected     eth0

ens4    ethernet  disconnected  --

lo      loopback  unmanaged     --

Edit your available/connected network using Network Manager TUI

# nmtui edit eth0

make sure to check 

1. Require IPv4 addressing for this connection
2. Automatically connected
3. Available to all users

References:

1. http://ask.xmodulo.com/configure-static-ip-address-centos7.html 
2. https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Networking_Guide/sec-Using_the_NetworkManager_Command_Line_Tool_nmcli.html