Common effort to get an official and automated gentoo base docker container
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Latest commit 5563571 Apr 16, 2018

README.md

Gentoo Docker Images

Build Status

A collection of Dockerfiles for generating Gentoo docker images.

These images are intended to be created automatically by a travis cron job and pushed to docker hub. This repository include basic stage3 images and an image usable as a /usr/portage volume

DockerHub

https://hub.docker.com/u/gentoo/

Inventory

  • portage
  • stage3
    • stage3-amd64
      • stage3-amd64-hardened
      • stage3-amd64-nomultilib
      • stage3-amd64-hardened-nomultilib
    • stage3-x86
      • stage3-x86-hardened

Building the containers

The containers are created using a multi-stage build, which requires docker-17.05.0 or later. The container being built is defined by the TARGET environment variable:

TARGET=stage3-amd64 ./build.sh

Using the portage container as a data volume

docker create -v /usr/portage --name myportagesnapshot gentoo/portage:latest /bin/true
docker run --volumes-from myportagesnapshot gentoo/stage3-amd64:latest /bin/bash

Using the portage container in a multi-stage build

docker-17.05.0 or later supports multi-stage builds, allowing the portage volume to be used when creating images based on a stage3 image.

Example Dockerfile

# name the portage image
FROM gentoo/portage:latest as portage

# image is based on stage3-amd64
FROM gentoo/stage3-amd64:latest

# copy the entire portage volume in
COPY --from=portage /usr/portage /usr/portage

# continue with image build ...
RUN emerge -qv www-servers/apache # or whichever packages you need

Contributing

We'd love to hear any ideas. Feel free to contact us via any of the following methods:

Policy

  • Use topic branches (i.e. foo) and fix branches (i.e. fix/foo) when submitting pull requests
  • Make meaningful commits ideally with the following form:
    • Subject line–what this commit does
    • Blank line
    • Body–why this commit is necessary or desired
  • Pull requests should not include merge commits
  • Use amend and rebase to fix commits after a pull request has been submitted