b888b14b39
This commit cleans up and attempts to optimise the performance of image push in S3 driver. There are 2 main changes: * we refactor the S3 driver Writer where instead of using separate bytes slices for ready and pending parts which get constantly appended data into them causing unnecessary allocations we use optimised bytes buffers; we make sure these are used efficiently when written to. * we introduce a memory pool that is used for allocating the byte buffers introduced above These changes should alleviate high memory pressure on the push path to S3. Co-authored-by: Cory Snider <corhere@gmail.com> Signed-off-by: Milos Gajdos <milosthegajdos@gmail.com> |
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| .github/workflows | ||
| cmd | ||
| configuration | ||
| context | ||
| digestset | ||
| dockerfiles | ||
| docs | ||
| health | ||
| manifest | ||
| metrics | ||
| notifications | ||
| project | ||
| reference | ||
| registry | ||
| releases | ||
| tests | ||
| testutil | ||
| uuid | ||
| vendor | ||
| version | ||
| .dockerignore | ||
| .gitignore | ||
| .golangci.yml | ||
| .mailmap | ||
| ADOPTERS.md | ||
| blobs.go | ||
| BUILDING.md | ||
| CODE-OF-CONDUCT.md | ||
| CONTRIBUTING.md | ||
| distribution-logo.svg | ||
| doc.go | ||
| docker-bake.hcl | ||
| Dockerfile | ||
| errors.go | ||
| go.mod | ||
| go.sum | ||
| GOVERNANCE.md | ||
| LICENSE | ||
| MAINTAINERS | ||
| Makefile | ||
| manifests.go | ||
| README.md | ||
| registry.go | ||
| ROADMAP.md | ||
| SECURITY.md | ||
| tags.go | ||
The toolset to pack, ship, store, and deliver content.
This repository's main product is the Open Source Registry implementation for storing and distributing container images using the OCI Distribution Specification. The goal of this project is to provide a simple, secure, and scalable base for building a large scale registry solution or running a simple private registry. It is a core library for many registry operators including Docker Hub, GitHub Container Registry, GitLab Container Registry and DigitalOcean Container Registry, as well as the CNCF Harbor Project, and VMware Harbor Registry.
This repository contains the following components:
| Component | Description |
|---|---|
| registry | An implementation of the OCI Distribution Specification. |
| libraries | A rich set of libraries for interacting with distribution components. Please see godoc for details. Note: The interfaces for these libraries are unstable. |
| documentation | Docker's full documentation set is available at docs.docker.com. This repository contains the subset related just to the registry. |
How does this integrate with Docker, containerd, and other OCI client?
Clients implement against the OCI specification and communicate with the registry using HTTP. This project contains a client implementation which is currently in use by Docker, however, it is deprecated for the implementation in containerd and will not support new features.
What are the long term goals of the Distribution project?
The Distribution project has the further long term goal of providing a secure tool chain for distributing content. The specifications, APIs and tools should be as useful with Docker as they are without.
Our goal is to design a professional grade and extensible content distribution system that allow users to:
- Enjoy an efficient, secured and reliable way to store, manage, package and exchange content
- Hack/roll their own on top of healthy open-source components
- Implement their own home made solution through good specs, and solid extensions mechanism.
Contribution
Please see CONTRIBUTING.md for details on how to contribute issues, fixes, and patches to this project. If you are contributing code, see the instructions for building a development environment.
Communication
For async communication and long running discussions please use issues and pull requests on the github repo. This will be the best place to discuss design and implementation.
For sync communication we have a #distribution channel in the CNCF Slack that everyone is welcome to join and chat about development.
Licenses
The distribution codebase is released under the Apache 2.0 license. The README.md file, and files in the "docs" folder are licensed under the Creative Commons Attribution 4.0 International License. You may obtain a copy of the license, titled CC-BY-4.0, at http://creativecommons.org/licenses/by/4.0/.