`COPY --chmod` reduced the size of my container image by 35%

• ko

  28 7,234 9.0 Go

  Build and deploy Go applications

  

If you're using Go, I recommend https://github.com/google/ko (shameless plug), or for Java, use Jib.

• go-containerregistry

  17 2,949 7.3 Go

  Go library and CLIs for working with container registries

  

There's also (another shameless plug) crane append which simply adds the contents of a tar to an existing base image directly in the registry: https://github.com/google/go-containerregistry/blob/main/cmd/crane/doc/crane_append.md

• WorkOS

  workos.com sponsored

  The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

  

• Moby

  212 67,687 10.0 Go

  The Moby Project - a collaborative project for the container ecosystem to assemble container-based systems

  

COPY --exclude. https://github.com/moby/moby/issues/15771

• docker-f1ux

  1 4 2.3 Nix

  Images for building older Forum One themes

  

With Nix you have to look up obscure sites like this and look for specific hashes and pray that the version you need exists (or package it and distribute it yourself). Approaches like this are not that inviting.

• Lean and Mean Docker containers

  38 18,165 9.1 Go

  Slim(toolkit): Don't change anything in your container image and minify it by up to 30x (and for compiled languages even more) making it secure too! (free and open source)

  

Or you can save your time micromanaging your Dockerfile and just use docker-slim.

• buildkit

  53 7,655 9.8 Go

  concurrent, cache-efficient, and Dockerfile-agnostic builder toolkit

  

Similarly, Dockerfile with buildkit support a 'COPY --chmod' directive now. https://github.com/moby/buildkit/pull/1492. Again not quite everything you're looking for, but addresses the OP's issue.

Suggest a related project