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Build Multi-Platform Docker Image

Build multi-platform Docker images for linux/amd64 and linux/arm64 using Docker buildx.

Updated Jan 1, 2025
Search Tags:#ci/cd#containerization#multi-platform#docker#buildx#docker hub
One-click install
npx skills add https://github.com/futuretea/bci --skill build-multi-platform-docker-image
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: Build Multi-Platform Docker Image
Source: https://github.com/futuretea/bci/tree/main/.claude/skills/build-multiplatform
Command: npx skills add https://github.com/futuretea/bci --skill build-multi-platform-docker-image

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill automates the process of building Docker images that are compatible with multiple CPU architectures (like amd64 and arm64), ensuring your applications can run on a wider range of hardware. It also streamlines the optional step of pushing these images to a Docker registry.

Core Features & Use Cases

  • Multi-Platform Builds: Creates Docker images for linux/amd64 and linux/arm64 simultaneously using docker buildx.
  • Image Tagging: Supports latest, master-head, and custom tags for versioning.
  • Registry Push: Optionally pushes the built image to Docker Hub.
  • Prerequisite Checks: Validates Docker, buildx, and Docker Hub authentication before building.
  • Use Case: A developer needs to build a Docker image for a new microservice that will be deployed on both standard servers (amd64) and ARM-based devices (like Raspberry Pi). This Skill ensures the image is built correctly for both architectures.

Quick Start

Build the 'bookworm' image with the 'latest' tag and push it to Docker Hub.

Frequently Asked Questions about Build Multi-Platform Docker Image

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I build Docker images for multiple architectures like amd64 and arm64?▼

You can build Docker images for multiple architectures simultaneously using Docker buildx, which creates compatible images for linux/amd64 and linux/arm64 in a single operation.

What is Docker buildx and when do I need it for containerization?▼

Docker buildx is a CLI plugin that extends Docker to build multi-platform images. You need it when deploying containers across different hardware like standard servers and ARM-based devices.

Can I push a multi-platform Docker image directly to Docker Hub?▼

Yes, after validating your Docker and buildx setup along with your Docker Hub authentication, you can optionally push the built multi-platform image directly to Docker Hub.

What are the prerequisites for building multi-platform Docker images?▼

Prerequisites include having Docker and buildx installed and available, plus valid Docker Hub authentication credentials if you intend to push the built images to the registry.

How do I tag multi-platform Docker images during the build process?▼

You can tag multi-platform Docker images using predefined tags like latest and master-head, or you can apply a custom tag to version your builds appropriately during the buildx process.

Which base images can I select when building multi-platform Docker containers?▼

You can select from a predefined list of base images including bookworm, go-operator, netshoot, node, and server-base to build your multi-platform Docker containers.

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