Implementation:Apache Kafka Docker Buildx Create

Knowledge Sources	Apache Kafka
Domains	Release_Engineering, Containerization
Last Updated	2026-02-09 12:00 GMT

Overview

Concrete tool for creating a Docker Buildx builder instance provided by the Kafka docker_release module.

Description

The create_builder function executes docker buildx create --name kafka-builder --use to set up a named builder instance for multi-architecture builds.

Usage

Called automatically at the start of build_push in docker_release.py. The builder is cleaned up in a finally block.

Code Reference

Source Location

• Repository: Apache Kafka
• File: docker/docker_release.py
• Lines: L53-54

Signature

def create_builder():
    """Creates docker buildx builder named 'kafka-builder' and sets it as active."""
    execute(["docker", "buildx", "create", "--name", "kafka-builder", "--use"])

Import

from common import execute

I/O Contract

Inputs

Name	Type	Required	Description
(none)			Uses hardcoded builder name "kafka-builder"

Outputs

Name	Type	Description
Builder instance	docker buildx	Named builder "kafka-builder" set as active

Usage Examples

from common import execute

def create_builder():
    execute(["docker", "buildx", "create", "--name", "kafka-builder", "--use"])

# Equivalent CLI:
# docker buildx create --name kafka-builder --use

Related Pages

Implements Principle

• Principle:Apache_Kafka_Buildx_Builder_Setup
• Environment:Apache_Kafka_Docker_Build_Environment