Google Cloud virtual machine instance created from snapshot not allowing ssh

Question

I have created a virtual machine instance from snapshot taken the production server. SSH key is set. But I am unable to ssh into instance both from the putty and google clou

Answer 1

@Patrick answer helps me get to answer, explanatory steps

1. 1) Serial Console.
   • Go to you instance detail and enable serial port.
   • Connect to your instance using serial port and login with the user and password
   • If you do not have user create one by following script as a startup-script

      #!/bin/bash 
        sudo useradd -G sudo user
        sudo echo 'user:password' | chpasswd 

• sudo systemctl status networking.service to check networking status
• Remove the /etc/network/interfaces.d/setup file then edit your /etc/network/interfaces

auto lo
iface lo inet loopback

• Restart networking service by running sudo systemctl status networking.service

2) Following startup script also work for me

#!/bin/bash 
sudo dhclient eth0