Usage guide
This section will help you to use various aspects of the Stackable Operator for Apache NiFi. For a general introduction into the operator follow the Getting started guide. Below is a general overview of some configuration aspects, have a look at the subpages for details.
The cluster is configured via a YAML manifest file. This custom resource specifies the amount of replicas for each role group or role specific configuration like resource requests. The following listing shows an example configuration:
apiVersion: nifi.stackable.tech/v1alpha1 kind: NifiCluster metadata: name: simple-nifi spec: image: productVersion: 1.25.0 clusterConfig: zookeeperConfigMapName: simple-nifi-znode (1) authentication: (2) - authenticationClass: simple-nifi-admin-user extraVolumes: (3) - name: nifi-client-certs secret: secretName: nifi-client-certs listenerClass: external-unstable sensitiveProperties: keySecret: nifi-sensitive-property-key autoGenerate: true nodes: roleGroups: default: config: resources: (4) cpu: min: "500m" max: "4" memory: limit: '2Gi' replicas: 3| 1 | The ZooKeeper instance to use. |
| 2 | How users should authenticate themselves. |
| 3 | Extra volumes with files that can be referenced in custom workflows. |
| 4 | CPU and memory configuration can be set per role group. |
Not shown are the common settings for starting and stopping the cluster and distributing Pods. Additionally, you can set any NiFi setting using overrides. You can also configure log aggregation.