Getting Started

The operator installs the 1.12.1 version of Apache NiFi, can run on Minikube v0.33.1+ and Kubernetes 1.16.0+, and require Helm 3.

info

The operator supports NiFi 1.11.0+

As a pre-requisite it needs a Kubernetes cluster. Also, NiFi requires Zookeeper so you need to first have a Zookeeper cluster if you don't already have one.

We believe in the separation of concerns principle, thus the NiFi operator does not install nor manage Zookeeper.

Prerequisites

Install Zookeeper

To install Zookeeper we recommend using the Bitnami's Zookeeper chart.

helm repo add bitnami https://charts.bitnami.com/bitnami

# You have to create the namespace before executing following command

helm install zookeeper bitnami/zookeeper \

--set resources.requests.memory=256Mi \

--set resources.requests.cpu=250m \

--set resources.limits.memory=256Mi \

--set resources.limits.cpu=250m \

--set global.storageClass=standard \

--set networkPolicy.enabled=true \

--set replicaCount=3

warning

Replace the storageClass parameter value with your own.

Install cert-manager

The NiFiKop operator uses cert-manager for issuing certificates to users and and nodes, so you'll need to have it setup in case you want to deploy a secured cluster with authentication enabled.

• Directly
• helm 3

# Install the CustomResourceDefinitions and cert-manager itself

kubectl apply -f \

https://github.com/jetstack/cert-manager/releases/download/v1.2.0/cert-manager.yaml

Installation

Installing with Helm

You can deploy the operator using a Helm chart Helm chart:

To install an other version of the operator use helm install --name=nifikop --namespace=nifi --set operator.image.tag=x.y.z orange-incubator/nifikop

In the case where you don't want to deploy the crds using helm (--skip-crds), you have to deploy manually the crds :

kubectl apply -f https://raw.githubusercontent.com/Orange-OpenSource/nifikop/master/config/crd/bases/nifi.orange.com_nificlusters.yaml

kubectl apply -f https://raw.githubusercontent.com/Orange-OpenSource/nifikop/master/config/crd/bases/nifi.orange.com_nifiusers.yaml

kubectl apply -f https://raw.githubusercontent.com/Orange-OpenSource/nifikop/master/config/crd/bases/nifi.orange.com_nifiusergroups.yaml

kubectl apply -f https://raw.githubusercontent.com/Orange-OpenSource/nifikop/master/config/crd/bases/nifi.orange.com_nifidataflows.yaml

kubectl apply -f https://raw.githubusercontent.com/Orange-OpenSource/nifikop/master/config/crd/bases/nifi.orange.com_nifiparametercontexts.yaml

kubectl apply -f https://raw.githubusercontent.com/Orange-OpenSource/nifikop/master/config/crd/bases/nifi.orange.com_nifiregistryclients.yaml

Add the orange incubator repository :

helm repo add orange-incubator https://orange-kubernetes-charts-incubator.storage.googleapis.com/

Now deploy the helm chart :

# You have to create the namespace before executing following command

helm install nifikop \

orange-incubator/nifikop \

--namespace=nifi \

--version 0.7.6 \

--set image.tag=v0.7.6-release \

--set resources.requests.memory=256Mi \

--set resources.requests.cpu=250m \

--set resources.limits.memory=256Mi \

--set resources.limits.cpu=250m \

--set namespaces={"nifi"}

note

Add the following parameter if you are using this instance to only deploy unsecured clusters : --set certManager.enabled=false

Create custom storage class

We recommend to use a custom StorageClass to leverage the volume binding mode WaitForFirstConsumer

apiVersion: storage.k8s.io/v1

kind: StorageClass

metadata:

name: exampleStorageclass

parameters:

type: pd-standard

provisioner: kubernetes.io/gce-pd

reclaimPolicy: Delete

volumeBindingMode: WaitForFirstConsumer

tip

Remember to set your NiFiCluster CR properly to use the newly created StorageClass.

Deploy NiFi cluster

And after you can deploy a simple NiFi cluster.

# Add your zookeeper svc name to the configuration

kubectl create -n nifi -f config/samples/simplenificluster.yaml