Docker Image

Docker Iamge

Supported tags ¶

v3.5.0, v3.5, latest
v3.4.1, v3.4
v3.3.2, v3.3
More Tags

What is Apache Kafka? ¶

Apache Kafka is an open-source distributed event streaming platform used by thousands of companies for high-performance data pipelines, streaming analytics, data integration, and mission-critical applications.

kafka.apache.org

More than 80% of all Fortune 100 companies trust, and use Kafka.

Why use this image ¶

Fully compatible with KRaft, say goodbye to ZooKeeper.
Flexible use of environment variables for configuration.
Easy to deploy.
Provide helm chart, you can quickly deploy high-availability clusters on Kubernetes.

How to use this image ¶

Docker Hub

Start a `kafka` server instance ¶

Starting a Kafka instance is simple:

docker run -d --name kafka-server --network host sir5kong/kafka

Persisting your data ¶

docker volume create kafka-data
docker run -d --name kafka-server \
  --network host \
  -v kafka-data:/opt/kafka/data \
  sir5kong/kafka

The default listener port of the broker is 9092

Custom listener port ¶

docker volume create kafka-data
docker run -d --name kafka-server \
  --network host \
  -v kafka-data:/opt/kafka/data \
  --env KAFKA_CONTROLLER_LISTENER_PORT=29091 \
  --env KAFKA_BROKER_LISTENER_PORT=29092 \
  sir5kong/kafka

Using Docker Compose ¶

version: "3"

volumes:
  kafka-data: {}

## bootstrap-server: ${KAFKA_HOST_IP_ADDR}:9092

services:
  kafka:
    image: sir5kong/kafka:v3.5
    restart: always
    network_mode: host
    volumes:
      - kafka-data:/opt/kafka/data
    environment:
      - KAFKA_HEAP_OPTS=-Xmx512m -Xms512m
      #- KAFKA_CONTROLLER_LISTENER_PORT=19091
      #- KAFKA_BROKER_LISTENER_PORT=9092

Environment Variables ¶

Variable	Default	Description
`KAFKA_CLUSTER_ID`	Random	Cluster ID
`KAFKA_BROKER_LISTENER_PORT`	`9092`	broker listener port. This will not work if `KAFKA_CFG_LISTENERS` is configured
`KAFKA_CONTROLLER_LISTENER_PORT`	`19091`	controller listener port. This will not work if `KAFKA_CFG_LISTENERS` is configured
`KAFKA_HEAP_OPTS`	`null`	Kafka Java Heap size. For example `-Xmx512m -Xms512m`

Kafka Configurations ¶

Any environment variable beginning with KAFKA_CFG_ will be mapped to its corresponding Apache Kafka key.

For example, use KAFKA_CFG_LISTENERS in order to set listeners or KAFKA_CFG_ADVERTISED_LISTENERS in order to configure advertised.listeners.

Variable examples:

Variable	Key
`KAFKA_CFG_PROCESS_ROLES`	`process.roles`
`KAFKA_CFG_LISTENERS`	`listeners`
`KAFKA_CFG_LISTENER_SECURITY_PROTOCOL_MAP`	`listener.security.protocol.map`
`KAFKA_CFG_ADVERTISED_LISTENERS`	`advertised.listeners`
`KAFKA_CFG_CONTROLLER_QUORUM_VOTERS`	`controller.quorum.voters`
`KAFKA_CFG_LOG_RETENTION_HOURS`	`log.retention.hours`

log.dir and log.dirs are locked, you cannot overwrite them

Using Helm ¶

Get Repository Info ¶

helm repo add kafka-repo https://helm-charts.itboon.top/kafka
helm repo update kafka-repo

Deploy a cluster ¶

helm upgrade --install kafka \
  --namespace kafka-demo \
  --create-namespace \
  kafka-repo/kafka

Deploy a highly available cluster ¶

helm upgrade --install kafka \
  --namespace kafka-demo \
  --create-namespace \
  --set controller.replicaCount="3" \
  --set broker.replicaCount="3" \
  --set broker.heapOpts="-Xms4096m -Xmx4096m" \
  --set broker.resources.requests.memory="8Gi" \
  --set broker.resources.limits.memory="16Gi" \
  kafka-repo/kafka

See Kafka Helm Charts