gentoo / Gentoo Docker Images
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Gentoo Docker Images
A collection of Dockerfiles for generating Gentoo docker images.
These images are intended to be created automatically by
a 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
The following targets are built and pushed to Docker Hub:
portage
-
stage3
-
amd64
stage3-amd64
stage3-amd64-hardened
stage3-amd64-hardened-nomultilib
stage3-amd64-musl-hardened
stage3-amd64-musl-vanilla
stage3-amd64-nomultilib
stage3-amd64-systemd
stage3-amd64-uclibc-hardened
stage3-amd64-uclibc-vanilla
-
arm64
stage3-arm64
stage3-arm64-systemd
-
arm
stage3-armv5tel
stage3-armv6j_hardfp
stage3-armv7a_hardfp
-
ppc
stage3-ppc64le
-
s390
stage3-s390x
-
x86
stage3-x86
stage3-x86-hardened
stage3-x86-musl-vanilla
stage3-x86-systemd
stage3-x86-uclibc-hardened
stage3-x86-uclibc-vanilla
-
The following upstream stage3 targets are not built at all (see rationale):
-
amd64
stage3-amd64-hardened-selinux
stage3-amd64-hardened-selinux+nomultilib
stage3-x32
-
arm
stage3-armv4tl
stage3-armv6j
stage3-armv7a
-
ppc
stage3-ppc
stage3-ppc64
-
s390
stage3-s390
-
x86
stage3-i486
Building the containers
The containers are created using a multi-stage build, which requires Docker >= 19.03.0. 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 --interactive --tty --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 /var/db/repos/gentoo /var/db/repos/gentoo
# 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:
- IRC: irc://freenode.net/#gentoo-containers
- EMAIL: [email protected]
- GITHUB: https://github.com/gentoo/gentoo-docker-images
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