Description of the problem:

A recent change introduced notification email setup into the setup.sh script. Previously the script would run non-interactively if a few required variables were set and --set-defaults flag was used. With the email notification change, the following variables must be set or the script goes interactive, prompting the user for values.

NOTIFICATIONS_EMAIL_HOSTNAME=
NOTIFICATIONS_EMAIL_USERNAME=
NOTIFICATIONS_EMAIL_PASSWORD=

Although I understand this is using defaults, it would be preferable to be able to set a variable to skip this setup, such as SETUP_NOTIFICATIONS_EMAIL=false

How reproducible: 100%

Steps to reproduce:

1. Run script without setting any NOTIFICATIONS_* vars and use defaults

export KUBECONFIG=/home/kni/clusterconfigs/auth/kubeconfig
export GITHUB_TOKEN=fwfewf
export GITHUB_CLIENT_ID=asdsa
export GITHUB_CLIENT_SECRET=asd
 ./setup.sh --use-default

Actual results:

Script will go interactive, prompting the user to fill in the values

Expected results:

Script remains non-interactive or there is a variable to skip the setup all together