Move libcontainer documenation to root of repo

This moves much of the documentation on contributing and maintainer the
codebase from the libcontainer sub directory to the root of the repo.

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
This commit is contained in:
Michael Crosby 2015-06-26 11:50:46 -07:00
parent 8d0ae52adc
commit f637539def
10 changed files with 126 additions and 517 deletions

117
CONTRIBUTING.md Normal file
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@ -0,0 +1,117 @@
## Contribution Guidelines
### Pull requests are always welcome
We are always thrilled to receive pull requests, and do our best to
process them as fast as possible. Not sure if that typo is worth a pull
request? Do it! We will appreciate it.
If your pull request is not accepted on the first try, don't be
discouraged! If there's a problem with the implementation, hopefully you
received feedback on what to improve.
We're trying very hard to keep runc lean and focused. We don't want it
to do everything for everybody. This means that we might decide against
incorporating a new feature. However, there might be a way to implement
that feature *on top of* runc.
### Conventions
Fork the repo and make changes on your fork in a feature branch:
- If it's a bugfix branch, name it XXX-something where XXX is the number of the
issue
- If it's a feature branch, create an enhancement issue to announce your
intentions, and name it XXX-something where XXX is the number of the issue.
Submit unit tests for your changes. Go has a great test framework built in; use
it! Take a look at existing tests for inspiration. Run the full test suite on
your branch before submitting a pull request.
Update the documentation when creating or modifying features. Test
your documentation changes for clarity, concision, and correctness, as
well as a clean documentation build. See ``docs/README.md`` for more
information on building the docs and how docs get released.
Write clean code. Universally formatted code promotes ease of writing, reading,
and maintenance. Always run `gofmt -s -w file.go` on each changed file before
committing your changes. Most editors have plugins that do this automatically.
Pull requests descriptions should be as clear as possible and include a
reference to all the issues that they address.
Pull requests must not contain commits from other users or branches.
Commit messages must start with a capitalized and short summary (max. 50
chars) written in the imperative, followed by an optional, more detailed
explanatory text which is separated from the summary by an empty line.
Code review comments may be added to your pull request. Discuss, then make the
suggested modifications and push additional commits to your feature branch. Be
sure to post a comment after pushing. The new commits will show up in the pull
request automatically, but the reviewers will not be notified unless you
comment.
Before the pull request is merged, make sure that you squash your commits into
logical units of work using `git rebase -i` and `git push -f`. After every
commit the test suite should be passing. Include documentation changes in the
same commit so that a revert would remove all traces of the feature or fix.
Commits that fix or close an issue should include a reference like `Closes #XXX`
or `Fixes #XXX`, which will automatically close the issue when merged.
### Sign your work
The sign-off is a simple line at the end of the explanation for the
patch, which certifies that you wrote it or otherwise have the right to
pass it on as an open-source patch. The rules are pretty simple: if you
can certify the below (from
[developercertificate.org](http://developercertificate.org/)):
```
Developer Certificate of Origin
Version 1.1
Copyright (C) 2004, 2006 The Linux Foundation and its contributors.
660 York Street, Suite 102,
San Francisco, CA 94110 USA
Everyone is permitted to copy and distribute verbatim copies of this
license document, but changing it is not allowed.
Developer's Certificate of Origin 1.1
By making a contribution to this project, I certify that:
(a) The contribution was created in whole or in part by me and I
have the right to submit it under the open source license
indicated in the file; or
(b) The contribution is based upon previous work that, to the best
of my knowledge, is covered under an appropriate open source
license and I have the right under that license to submit that
work with modifications, whether created in whole or in part
by me, under the same open source license (unless I am
permitted to submit under a different license), as indicated
in the file; or
(c) The contribution was provided directly to me by some other
person who certified (a), (b) or (c) and I have not modified
it.
(d) I understand and agree that this project and the contribution
are public and that a record of the contribution (including all
personal information I submit with it, including my sign-off) is
maintained indefinitely and may be redistributed consistent with
this project or the open source license(s) involved.
```
then you just add a line to every git commit message:
Signed-off-by: Joe Smith <joe@gmail.com>
using your real name (sorry, no pseudonyms or anonymous contributions.)
You can add the sign off when creating the git commit via `git commit -s`.

View File

@ -4,4 +4,3 @@ Victor Marmol <vmarmol@google.com> (@vmarmol)
Mrunal Patel <mpatel@redhat.com> (@mrunalp) Mrunal Patel <mpatel@redhat.com> (@mrunalp)
Alexandr Morozov <lk4d4@docker.com> (@LK4D4) Alexandr Morozov <lk4d4@docker.com> (@LK4D4)
Daniel, Dao Quang Minh <dqminh89@gmail.com> (@dqminh) Daniel, Dao Quang Minh <dqminh89@gmail.com> (@dqminh)
update-vendor.sh: Tianon Gravi <admwiggin@gmail.com> (@tianon)

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@ -1,9 +1,7 @@
# The libcontainer Maintainers' Guide
## Introduction ## Introduction
Dear maintainer. Thank you for investing the time and energy to help Dear maintainer. Thank you for investing the time and energy to help
make libcontainer as useful as possible. Maintaining a project is difficult, make runc as useful as possible. Maintaining a project is difficult,
sometimes unrewarding work. Sure, you will get to contribute cool sometimes unrewarding work. Sure, you will get to contribute cool
features to the project. But most of your time will be spent reviewing, features to the project. But most of your time will be spent reviewing,
cleaning up, documenting, answering questions, justifying design cleaning up, documenting, answering questions, justifying design
@ -34,9 +32,9 @@ It is every maintainer's responsibility to:
## How are decisions made? ## How are decisions made?
Short answer: with pull requests to the libcontainer repository. Short answer: with pull requests to the runc repository.
libcontainer is an open-source project with an open design philosophy. This runc is an open-source project with an open design philosophy. This
means that the repository is the source of truth for EVERY aspect of the means that the repository is the source of truth for EVERY aspect of the
project, including its philosophy, design, roadmap and APIs. *If it's project, including its philosophy, design, roadmap and APIs. *If it's
part of the project, it's in the repo. It's in the repo, it's part of part of the project, it's in the repo. It's in the repo, it's part of
@ -47,7 +45,7 @@ repository. An implementation change is a change to the source code. An
API change is a change to the API specification. A philosophy change is API change is a change to the API specification. A philosophy change is
a change to the philosophy manifesto. And so on. a change to the philosophy manifesto. And so on.
All decisions affecting libcontainer, big and small, follow the same 3 steps: All decisions affecting runc, big and small, follow the same 3 steps:
* Step 1: Open a pull request. Anyone can do this. * Step 1: Open a pull request. Anyone can do this.
@ -65,7 +63,7 @@ by anyone is denoted by adding a comment in the pull request: `LGTM`.
However, only currently listed `MAINTAINERS` are counted towards the required However, only currently listed `MAINTAINERS` are counted towards the required
two LGTMs. two LGTMs.
libcontainer follows the timeless, highly efficient and totally unfair system runc follows the timeless, highly efficient and totally unfair system
known as [Benevolent dictator for life](http://en.wikipedia.org/wiki/Benevolent_Dictator_for_Life), with Michael Crosby in the role of BDFL. known as [Benevolent dictator for life](http://en.wikipedia.org/wiki/Benevolent_Dictator_for_Life), with Michael Crosby in the role of BDFL.
This means that all decisions are made by default by Michael. Since making This means that all decisions are made by default by Michael. Since making
every decision himself would be highly un-scalable, in practice decisions every decision himself would be highly un-scalable, in practice decisions

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@ -1,4 +1,5 @@
libcontainer runc
Copyright 2012-2015 Docker, Inc. Copyright 2012-2015 Docker, Inc.
This product includes software developed at Docker, Inc. (http://www.docker.com). This product includes software developed at Docker, Inc. (http://www.docker.com).

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@ -1,6 +1,6 @@
# libcontainer Principles # runc principles
In the design and development of libcontainer we try to follow these principles: In the design and development of runc and libcontainer we try to follow these principles:
(Work in progress) (Work in progress)

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@ -1,257 +0,0 @@
# The libcontainer Contributors' Guide
Want to hack on libcontainer? Awesome! Here are instructions to get you
started. They are probably not perfect, please let us know if anything
feels wrong or incomplete.
## Reporting Issues
When reporting [issues](https://github.com/opencontainers/runc/libcontainer/issues)
on GitHub please include your host OS (Ubuntu 12.04, Fedora 19, etc),
the output of `uname -a`. Please include the steps required to reproduce
the problem if possible and applicable.
This information will help us review and fix your issue faster.
## Development Environment
### Requirements
For best results, use a Linux development environment.
The following packages are required to compile libcontainer natively.
- Golang 1.3
- GCC
- git
- cgutils
You can develop on OSX, but you are limited to Dockerfile-based builds only.
### Building libcontainer from Dockerfile
make all
This is the easiest way of building libcontainer.
As this build is done using Docker, you can even run this from [OSX](https://github.com/boot2docker/boot2docker)
### Testing changes with "nsinit"
make sh
This will create an container that runs `nsinit exec sh` on a busybox rootfs with the configuration from ['minimal.json'](https://github.com/opencontainers/runc/libcontainer/blob/master/sample_configs/minimal.json).
Like the previous command, you can run this on OSX too!
### Building libcontainer directly
> Note: You should add the `vendor` directory to your GOPATH to use the vendored libraries
./update-vendor.sh
go get -d ./...
make direct-build
# Run the tests
make direct-test-short | egrep --color 'FAIL|$'
# Run all the test
make direct-test | egrep --color 'FAIL|$'
### Testing Changes with "nsinit" directly
To test a change:
# Install nsinit
make direct-install
# Optional, add a docker0 bridge
ip link add docker0 type bridge
ifconfig docker0 172.17.0.1/16 up
mkdir testfs
curl -sSL https://github.com/jpetazzo/docker-busybox/raw/buildroot-2014.02/rootfs.tar | tar -xC testfs
cd testfs
cp <your-sample-config.json> container.json
nsinit exec sh
## Contribution Guidelines
### Pull requests are always welcome
We are always thrilled to receive pull requests, and do our best to
process them as fast as possible. Not sure if that typo is worth a pull
request? Do it! We will appreciate it.
If your pull request is not accepted on the first try, don't be
discouraged! If there's a problem with the implementation, hopefully you
received feedback on what to improve.
We're trying very hard to keep libcontainer lean and focused. We don't want it
to do everything for everybody. This means that we might decide against
incorporating a new feature. However, there might be a way to implement
that feature *on top of* libcontainer.
### Discuss your design on the mailing list
We recommend discussing your plans [on the mailing
list](https://groups.google.com/forum/?fromgroups#!forum/libcontainer)
before starting to code - especially for more ambitious contributions.
This gives other contributors a chance to point you in the right
direction, give feedback on your design, and maybe point out if someone
else is working on the same thing.
### Create issues...
Any significant improvement should be documented as [a GitHub
issue](https://github.com/opencontainers/runc/libcontainer/issues) before anybody
starts working on it.
### ...but check for existing issues first!
Please take a moment to check that an issue doesn't already exist
documenting your bug report or improvement proposal. If it does, it
never hurts to add a quick "+1" or "I have this problem too". This will
help prioritize the most common problems and requests.
### Conventions
Fork the repo and make changes on your fork in a feature branch:
- If it's a bugfix branch, name it XXX-something where XXX is the number of the
issue
- If it's a feature branch, create an enhancement issue to announce your
intentions, and name it XXX-something where XXX is the number of the issue.
Submit unit tests for your changes. Go has a great test framework built in; use
it! Take a look at existing tests for inspiration. Run the full test suite on
your branch before submitting a pull request.
Update the documentation when creating or modifying features. Test
your documentation changes for clarity, concision, and correctness, as
well as a clean documentation build. See ``docs/README.md`` for more
information on building the docs and how docs get released.
Write clean code. Universally formatted code promotes ease of writing, reading,
and maintenance. Always run `gofmt -s -w file.go` on each changed file before
committing your changes. Most editors have plugins that do this automatically.
Pull requests descriptions should be as clear as possible and include a
reference to all the issues that they address.
Pull requests must not contain commits from other users or branches.
Commit messages must start with a capitalized and short summary (max. 50
chars) written in the imperative, followed by an optional, more detailed
explanatory text which is separated from the summary by an empty line.
Code review comments may be added to your pull request. Discuss, then make the
suggested modifications and push additional commits to your feature branch. Be
sure to post a comment after pushing. The new commits will show up in the pull
request automatically, but the reviewers will not be notified unless you
comment.
Before the pull request is merged, make sure that you squash your commits into
logical units of work using `git rebase -i` and `git push -f`. After every
commit the test suite should be passing. Include documentation changes in the
same commit so that a revert would remove all traces of the feature or fix.
Commits that fix or close an issue should include a reference like `Closes #XXX`
or `Fixes #XXX`, which will automatically close the issue when merged.
### Testing
Make sure you include suitable tests, preferably unit tests, in your pull request
and that all the tests pass.
*Instructions for running tests to be added.*
### Merge approval
libcontainer maintainers use LGTM (looks good to me) in comments on the code review
to indicate acceptance.
A change requires LGTMs from at lease two maintainers. One of those must come from
a maintainer of the component affected. For example, if a change affects `netlink/`
and `security`, it needs at least one LGTM from a maintainer of each. Maintainers
only need one LGTM as presumably they LGTM their own change.
For more details see [MAINTAINERS.md](MAINTAINERS.md)
### Sign your work
The sign-off is a simple line at the end of the explanation for the
patch, which certifies that you wrote it or otherwise have the right to
pass it on as an open-source patch. The rules are pretty simple: if you
can certify the below (from
[developercertificate.org](http://developercertificate.org/)):
```
Developer Certificate of Origin
Version 1.1
Copyright (C) 2004, 2006 The Linux Foundation and its contributors.
660 York Street, Suite 102,
San Francisco, CA 94110 USA
Everyone is permitted to copy and distribute verbatim copies of this
license document, but changing it is not allowed.
Developer's Certificate of Origin 1.1
By making a contribution to this project, I certify that:
(a) The contribution was created in whole or in part by me and I
have the right to submit it under the open source license
indicated in the file; or
(b) The contribution is based upon previous work that, to the best
of my knowledge, is covered under an appropriate open source
license and I have the right under that license to submit that
work with modifications, whether created in whole or in part
by me, under the same open source license (unless I am
permitted to submit under a different license), as indicated
in the file; or
(c) The contribution was provided directly to me by some other
person who certified (a), (b) or (c) and I have not modified
it.
(d) I understand and agree that this project and the contribution
are public and that a record of the contribution (including all
personal information I submit with it, including my sign-off) is
maintained indefinitely and may be redistributed consistent with
this project or the open source license(s) involved.
```
then you just add a line to every git commit message:
Docker-DCO-1.1-Signed-off-by: Joe Smith <joe.smith@email.com> (github: github_handle)
using your real name (sorry, no pseudonyms or anonymous contributions.)
One way to automate this, is customise your get ``commit.template`` by adding
a ``prepare-commit-msg`` hook to your libcontainer checkout:
```
curl -o .git/hooks/prepare-commit-msg https://raw.githubusercontent.com/docker/docker/master/contrib/prepare-commit-msg.hook && chmod +x .git/hooks/prepare-commit-msg
```
* Note: the above script expects to find your GitHub user name in ``git config --get github.user``
#### Small patch exception
There are several exceptions to the signing requirement. Currently these are:
* Your patch fixes spelling or grammar errors.
* Your patch is a single line change to documentation contained in the
`docs` directory.
* Your patch fixes Markdown formatting or syntax errors in the
documentation contained in the `docs` directory.
If you have any questions, please refer to the FAQ in the [docs](to be written)
### How can I become a maintainer?
* Step 1: learn the component inside out
* Step 2: make yourself useful by contributing code, bugfixes, support etc.
* Step 3: volunteer on the irc channel (#libcontainer@freenode)
Don't forget: being a maintainer is a time investment. Make sure you will have time to make yourself available.
You don't have to be a maintainer to make a difference on the project!

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@ -1,25 +0,0 @@
FROM golang:1.4
RUN echo "deb http://ftp.us.debian.org/debian testing main contrib" >> /etc/apt/sources.list
RUN apt-get update && apt-get install -y iptables criu=1.5.2-1 && rm -rf /var/lib/apt/lists/*
RUN go get golang.org/x/tools/cmd/cover
ENV GOPATH $GOPATH:/go/src/github.com/opencontainers/runc/libcontainer/vendor
RUN go get github.com/docker/docker/pkg/term
# setup a playground for us to spawn containers in
RUN mkdir /busybox && \
curl -sSL 'https://github.com/jpetazzo/docker-busybox/raw/buildroot-2014.11/rootfs.tar' | tar -xC /busybox
RUN curl -sSL https://raw.githubusercontent.com/docker/docker/master/hack/dind -o /dind && \
chmod +x /dind
COPY . /go/src/github.com/opencontainers/runc/libcontainer
WORKDIR /go/src/github.com/opencontainers/runc/libcontainer
RUN cp sample_configs/minimal.json /busybox/container.json
RUN make direct-install
ENTRYPOINT ["/dind"]
CMD ["make", "direct-test"]

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@ -1,191 +0,0 @@
Apache License
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http://www.apache.org/licenses/
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Copyright 2014 Docker, Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
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Unless required by applicable law or agreed to in writing, software
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

View File

@ -1,5 +1,3 @@
## libcontainer - reference implementation for containers [![Build Status](https://jenkins.dockerproject.org/buildStatus/icon?job=Libcontainer%20Master)](https://jenkins.dockerproject.org/job/Libcontainer%20Master/)
Libcontainer provides a native Go implementation for creating containers Libcontainer provides a native Go implementation for creating containers
with namespaces, cgroups, capabilities, and filesystem access controls. with namespaces, cgroups, capabilities, and filesystem access controls.
It allows you to manage the lifecycle of the container performing additional operations It allows you to manage the lifecycle of the container performing additional operations
@ -147,19 +145,8 @@ If you don't already have `criu` installed, you can build it from source, follo
generated when building libcontainer with docker. generated when building libcontainer with docker.
#### Future
See the [roadmap](ROADMAP.md).
## Copyright and license ## Copyright and license
Code and documentation copyright 2014 Docker, inc. Code released under the Apache 2.0 license. Code and documentation copyright 2014 Docker, inc. Code released under the Apache 2.0 license.
Docs released under Creative commons. Docs released under Creative commons.
## Hacking on libcontainer
First of all, please familiarise yourself with the [libcontainer Principles](PRINCIPLES.md).
If you're a *contributor* or aspiring contributor, you should read the [Contributors' Guide](CONTRIBUTING.md).
If you're a *maintainer* or aspiring maintainer, you should read the [Maintainers' Guide](MAINTAINERS_GUIDE.md) and
"How can I become a maintainer?" in the Contributors' Guide.

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@ -1,20 +0,0 @@
# libcontainer: what's next?
This document is a high-level overview of where we want to take libcontainer next.
It is a curated selection of planned improvements which are either important, difficult, or both.
For a more complete view of planned and requested improvements, see [the Github issues](https://github.com/opencontainers/runc/libcontainer/issues).
To suggest changes to the roadmap, including additions, please write the change as if it were already in effect, and make a pull request.
## Broader kernel support
Our goal is to make libcontainer run everywhere, but currently libcontainer requires Linux version 3.8 or higher. If youre deploying new machines for the purpose of running libcontainer, this is a fairly easy requirement to meet. However, if youre adding libcontainer to an existing deployment, you may not have the flexibility to update and patch the kernel.
## Cross-architecture support
Our goal is to make libcontainer run everywhere. Recently libcontainer has
expanded from its initial support for x86_64 systems to include POWER (ppc64
little and big endian variants), IBM System z (s390x 64-bit), and ARM. We plan
to continue expanding architecture support such that libcontainer containers
can be created and used on more architectures.