layout: post title: “Docker 29: Understanding the New Default Image Store” permalink: /schemas/docker-29-default-image-store-changes-2026 image: https://res.cloudinary.com/dobyanswe/image/upload/v1777998594/blog/2026/docker-29-default-image-store-changes-2026_bg2erc.jpg author: official slug: docker-29-default-image-store-changes-2026 date: 2026-05-05T16:27:02.720Z lastmod: 2026-05-05T16:27:02.720Z

description: “An in-depth look at the changes to Docker’s default image store in version 29 and its impact on deployments.” keyword:

• Docker 29
• image store
• containerization
• infrastructure changes
• default settings categories:
• Containerization
• DevOps tags:
• Docker
• container
• image store
• release
• DevOps
• infrastructure schema: layout: schema slug: docker-29-default-image-store-changes-2026 schema_type: “TechArticle” about: name: “Docker 29 Default Image Store Changes” description: “Details the shift in Docker Engine 29 where the default image store moves to containerd, impacting direct Linux Docker Engine installs.” mentions:
  • name: “Docker Engine” description: “The core runtime for building and running Docker containers.”
  • name: “containerd” description: “A core container runtime that emphasizes simplicity, robustness, and portability. It is used by Docker and Kubernetes.”
  • name: “Kubernetes” description: “An open-source system for automating deployment, scaling, and management of containerized applications.”
  • name: “overlay2” description: “A legacy Docker graph driver for managing image layers.” faq:
  • question: “What is the primary change in Docker 29 regarding image storage?” answer: “Docker Engine 29 defaults the image store to containerd, moving away from its legacy graph drivers like overlay2 for direct Linux Docker Engine installs.”
  • question: “Why is Docker making this change?” answer: “To align with the broader container ecosystem, particularly Kubernetes, which has standardized on containerd, and to bridge divergence in image management.”
  • question: “Who will be most affected by this change?” answer: “Users managing infrastructure with direct Linux Docker Engine installs.” technical_concepts:
  • name: “Image Store” description: “The location and management system for container images and their layers on a host machine.”
  • name: “Graph Driver” description: “A component of Docker that manages the storage of image layers, providing a filesystem view of the image.”
  • name: “Container Runtime” description: “Software that runs containers, such as containerd.” implementation_areas:
  • name: “Linux Docker Engine Installations” description: “Direct installations of Docker Engine on Linux systems will experience the default image store change.”
  • name: “Container Orchestration” description: “While not a direct change to orchestrators like Kubernetes, the alignment with containerd can simplify integration.”