how_to_run_kafka_using_helm

# How to run Kafka using helm

2021-09-02

## Prerequisite

- local kubernetes cluster
- helm
    - https://helm.sh/docs/intro/install/

## Install Kafka with helm

https://bitnami.com/stack/kafka/helm

## Install

### YAML

todo

values.yaml

```yaml
replicaCount: 3
autoCreateTopicsEnable: true
```

### Install

```shell-session
$ helm install my-release -f values.yaml bitnami/kafka
```

`my-release` is the release namespace.

### UnInstall

```shell-session
$ helm delete my-release
```

`my-release` is the release namespace.

## Run

```shell-session
$ kubectl get pods
NAME                     Ready   STATUS    RESTARTS AGE
my-release-kafka-client  1/1     Running   0        1m
...

$ kubectl exec --tty -i my-release-kafka-client --namespace default -- bash
```

### kafka-client

### Create Topic

```shell-session
$ kafka-topics.sh --zookeeper my-release-zookeeper.default.svc.cluster.local:2181 \
    --create
    --topic test
    --replication-factor 1
    --partitions 1
```

if you want to know the host of zookeeper, you should run this command outside of `kafka-client`.

```shell-session
$ kube ctl get services
```

## Produce and Consume

Look at the chart note.

```shell-session
$ helm show readme bitnami/kafka
```