What does the Docker Images and Registry Management concept cover?

Docker Images and Registry Management covers a variety of key topic guides, including: Writing Production-Grade Dockerfiles — Layers, Caching, and Best Practices, Multi-Stage Docker Builds — Smaller Images for Production, Docker Image Tagging, Versioning, and Registry Management, Optimising Docker Image Size — Techniques and Measurement. Complete overview mapping DevOps concepts for Docker Images and Registry Management.

How does Docker Images and Registry Management relate to the docker hub?

Docker Images and Registry Management is a core learning conceptual pillar mapped within the docker engineering hub of the DevOps Network.

Are these DevOps concepts free to learn?

Yes, all lessons, visual roadmaps, and guides on DevOps Network are 100% free with no paywalls or sign-up gates for learning content.

Docker Images and Registry Management | DevOps Knowledge Graph

Active Learning Concept

Docker Images and Registry Management

Complete overview mapping DevOps concepts for Docker Images and Registry Management.

Learning Progression

01

Topic Node

Writing Production-Grade Dockerfiles — Layers, Caching, and Best Practices

Write lean, secure, and cache-efficient Dockerfiles for production using layer ordering, .dockerignore, non-root users, and minimal base images.

Start Guide

02

Topic Node

Multi-Stage Docker Builds — Smaller Images for Production

Use multi-stage Dockerfiles to produce minimal production images by separating build dependencies from runtime artifacts, reducing image size by up to 90%.

Start Guide

03

Topic Node

Docker Image Tagging, Versioning, and Registry Management

Implement a production image tagging strategy using semantic versions and git SHAs, and manage images across Docker Hub, ECR, and private registries.

Start Guide

04

Topic Node

Optimising Docker Image Size — Techniques and Measurement

Reduce Docker image sizes from gigabytes to megabytes using layer squashing, minimal base images, cache mounts, and build output analysis.

Start Guide

Vocabulary & Terms

Key words used in this concept — explained simply, no jargon.

Container

A lightweight, isolated process running on a shared Linux kernel using namespaces and cgroups — providing filesystem, network, and process isolation without the overhead of a full virtual machine.

Docker Image

A read-only, layered filesystem snapshot that serves as the template for creating containers. Each layer represents a Dockerfile instruction and is cached and reused across builds to speed up image creation.

docker Concepts

Docker Images and Registry Management

Writing Production-Grade Dockerfiles — Layers, Caching, and Best Practices

Multi-Stage Docker Builds — Smaller Images for Production

Docker Image Tagging, Versioning, and Registry Management

Optimising Docker Image Size — Techniques and Measurement

Vocabulary & Terms

Container

Docker Image

Container Registry

Container Lifecycle