hopsworks-installer.sh script overwrites the default password with a randomly generated one.
The installer script should have generated a directory called
cluster-defns in the same directory from which you launched the script. Inside that directory, you’ll find a file called
hopsworks-installer-active.yml contains the configuration for your Hopsworks installation.
The configuration contains, among other parameters, the password for the Payara server. Look for a similar section in your cluster definition:
[ .... ]
password: [this is your password]