Before you can start using Ganeti Web Manager you will need to create a user and password on the Ganeti cluster.
Here is an example with a user jack and password abc123
echo -n 'jack:Ganeti Remote API:abc123' | openssl md5
Add the hash to /var/lib/ganeti/rapi_users on all the nodes in the cluster and restart ganeti-rapi. Here’s an example using above: For ganeti 2.4 and above you need use file /var/lib/ganeti/rapi/users
# Hashed password for jack
jack {HA1}54c12257ee9be413f2f3182435514aae write
For more information on adding users, please check the Ganeti RAPI documentation