Bryan Bendeon Stack Overflow • Recommends
On “Apache NiFi deployment in production”
Templates are just example flows to share with people and are not really meant for deployment. Please take a look at NiFi Registry and the concept of versioned flows.
https://nifi.apache.org/registry.html
link to this video
https://bryanbende.com/development/2018/01/19/apache-nifi-how-do-i-deploy-my-flow