I am a newbie to Nifi, and so some help would be very much appreciated.
I wish to validate an Oauth token for a valid role, before executing a Processor, and return a 403 if it is not valid.
Could you please advise me on the best way to do this.
Thanks very much in advance
Usually when authenticating with kerberos, kerberos provides a valid tgt. Until expiration, the service renews by itself from the domain policy. However you can force a renewal through
then as the service user kinit with the service/server keytab
#kinit -kt /etc/security/keytabs/nifi.headless.keytab