Updating NiFi

Updating (or downgrading for that matter) the deployed version of NiFi is as simple as changing the version stated in the CRD. Continuing the example above, the deployed version will be updated by deploying the following custom resource.

apiVersion: nifi.stackable.tech/v1alpha1
kind: NifiCluster
metadata:
  name: simple-nifi
spec:
  image:
    productVersion: 2.9.0 (1)

1	Change the NiFi version here

Rolling upgrades are supported, so changing the NiFi version in the CRD updates the cluster without downtime.