[Nifi] Kubernetes 위에서 NiFi 구동시키는 방법 링크

링크 : community.cloudera.com/t5/Community-Articles/Deploy-NiFi-On-Kubernetes/ta-p/269758

Deploy NiFi On Kubernetes

 

 

위의 글이 사라지기 전에 여기 복붙해둔다.

 

 

sunile_manjee Created on ‎09-04-2019 11:47 AM - edited ‎09-04-2019 01:53 PM

 

My Kubernetes series  (Part1, Part2) was strictly focused on MiNiFi on K8S.  NiFi and MiNiFi may communicate over Site 2 Site; however, often the pattern is to leverage Kafka for a clean message handoff.  NiFi within these patterns is generally the central router and transformer of messages.  Think of it like "FedEx" for data.   Till now most have deployed NiFi on bare metal or VMs.  Natural evolution kicks in. Deploy NiFi on k8s and yes it's super simple.  In this article I will demonstrate how to deploy both a NiFi and ZooKeeper cluster (none being a single pod!) on Azure Kubernetes Service (AKS); however, all artifacts may be leveraged to deploy on virtually any kubernetes offering.

 

Prerequisites

• Some knowledge of Kubernetes and NiFi
• AKS / k8s Cluster
• kubectl cli
• NiFi image available in a registry (ie dockerhub)

 

Deployment

All the contents in the ymls below can be placed into single file for deployment.  For this demonstration, chucking it into smaller components makes it easier to explain.

 

I have loaded a NiFi image into Azure Container Repository.  You can use the NiFi image available here in DockerHub.

 

 

Zookeeper

 

 

NiFi uses ZooKeeper for several state management functions.  More on that here.  ZooKeeper for NiFi can be deployed using embedded or stand alone mode.  Here I will deploy 3 pods of ZK on k8s.   Deploying ZK on k8s is super simple.

 

kubectl apply -f https://k8s.io/examples/application/zookeeper/zookeeper.yaml

(위 zookeeper.yaml 파일은 아래서 받을 수 있음)

zookeeper.yaml

0.00MB

 

 

After a few minutes 3 pods of ZK will be available for NiFi to use.  Once ZK pods become available, proceed  to deploy NiFi on k8s

 

kubectl get pods -w -l app=zk

 

NiFi

 

Below is the k8s deployment yml for NiFi (named nifi.yml).  Few fields to highlight

• replicas
  • This will be number of NiFi pods to deploy (Cluster)
• Image
  • Replace with your image location

 

To deploy this NiFi k8s manifest:

 

kubectl apply -f nifi.yml

(위 nifi.yaml 파일은 아래서 받을 수 있음)

nifi.yaml

0.00MB

Few minutes later you will have a fully functioning NiFi cluster on Kubernetes

 

 

https://community.cloudera.com/t5/Community-Articles/Deploy-NiFi-On-Kubernetes/ta-p/269758

 

I use super simple a lot.  I know.  Deploying MiNiFi & NiFi on k8s is just that, super simple.  Enjoy.