Lab ID should not be provided by the ADS user

[travula]

The key for the record that is saved into DB during deployment of a lab is
lab_id. The values used for lab_id are alphanumeric e.g cse02, and are
provided by the lab deployer to deploy a lab. lab_id is solely used to
uniquely identify a record that is saved during deployment of lab in a database
by ADS; essentially used for book keeping by the ADS.

In any situation, the user of ADS should not be burdened with providing a key.
Instead, the generation should be the responsibility of ADS in such a way that
a lab is always identified uniquely at any time.