Deploying a NiFi instance in a Kubernetes cluser

With Cloudera Flow Management Operator for Kubernetes you can deploy NiFi instances to your Kubernetes cluster.

You can deploy a NiFi cluster by creating a NiFi custom resource (CR) and deploying it to the Kubernetes cluster.

Ensure the Cloudera Flow Management Operator for Kubernetes has been installed and is running.
You have created a NiFi CR YAML file that complies with the documentation provided by Cloudera.

Create a namespace for the NiFi if it does not already exist.
```
$ kubectl create namespace my-nifi
```

In [***NIFI CLUSTER NAMESPACE***], create an image pull secret to access the installation artifacts.

kubectl create secret docker-registry [***SECRET NAME***] \
  --namespace [***NIFI CLUSTER NAMESPACE***] \
  --docker-server container.repository.cloudera.com \
  --docker-username [***USERNAME***] \
  --docker-password [***PASSWORD***]

Replace:

[***SECRET NAME***] with the desired Kubernetes secret name.
[***NIFI CLUSTER NAMESPACE***] with the namespace you created.
[***USERNAME***] and [***PASSWORD***] with your Cloudera credentials.

For example:

kubectl create secret docker-registry docker-pull-secret \
  --namespace cfm-operator-system \
  --docker-server container.repository.cloudera.com \
  --docker-username my-username \
  --docker-password my-password

Deploy NiFi to the Kubernetes cluster.
```
kubectl apply -f [***CR YAML PATH***] --namespace [***NIFI CLUSTER NAMESPACE***]
```
Replace:
- [***CR YAML PATH***] with the absolute or relative path to the CR YAML file you created for NiFi.
- [***NIFI CLUSTER NAMESPACE***] with the namespace you created to deploy NiFi.