Check the following guidelines before contributing to the project.
Changes to this project should be proposed as pull requests on Github at: https://github.com/lxc/lxd
Proposed changes will then go through code review there and once acked, be merged in the main branch.
Separate commits should be used for:
API extension (
api: Add XYZ extension, contains
doc: Update XYZfor files in
API structure (
shared/api: Add XYZfor changes to
Go client package (
client: Add XYZfor changes to
lxc/<command>: Change XYZfor changes to
scripts: Update bash completion for XYZfor changes to
LXD daemon (
lxd/<package>: Add support for XYZfor changes to
tests: Add test for XYZfor changes to
The same kind of pattern extends to the other tools in the LXD code tree and depending on complexity, things may be split into even smaller chunks.
When updating strings in the CLI tool (
lxc/), you may need a commit to update the templates:
git commit -a -s -m “i18n: Update translation templates” po/
This structure makes it easier for contributions to be reviewed and also greatly simplifies the process of backporting fixes to stable branches.
License and copyright¶
By default, any contribution to this project is made under the Apache 2.0 license.
The author of a change remains the copyright holder of their code (no copyright assignment).
Developer Certificate of Origin¶
To improve tracking of contributions to this project we use the DCO 1.1 and use a “sign-off” procedure for all changes going into the branch.
The sign-off is a simple line at the end of the explanation for the commit which certifies that you wrote it or otherwise have the right to pass it on as an open-source contribution.
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.
An example of a valid sign-off line is:
Signed-off-by: Random J Developer <email@example.com>
Use your real name and a valid e-mail address. Sorry, no pseudonyms or anonymous contributions are allowed.
We also require each commit be individually signed-off by their author,
even when part of a larger set. You may find
git commit -s useful.
Getting Started Developing¶
Follow the steps below to set up your development environment to get started working on new features for LXD.
To build the dependencies, follow the instructions in Installing LXD from source.
Adding Your Fork Remote¶
After building your dependencies, you can now add your GitHub fork as a remote and switch to it:
git remote add myfork firstname.lastname@example.org:<your_username>/lxd.git git remote update git checkout myfork/master
Finally, you should be able to
make inside the repository and build your fork of the project.
At this point, you would most likely want to create a new branch for your changes on your fork:
git checkout -b [name_of_your_new_branch] git push myfork [name_of_your_new_branch]
Important Notes for New LXD Contributors¶
Persistent data is stored in the
LXD_DIRdirectory which is generated by
lxd init. The
/var/snap/lxd/common/lxdfor snap users.
As you develop, you may want to change the
LXD_DIRfor your fork of LXD so as to avoid version conflicts.
Binaries compiled from your source will be generated in the
$(go env GOPATH)/bindirectory by default.
You will need to explicitly invoke these binaries (not the global
lxdyou may have installed) when testing your changes.
You may choose to create an alias in your
~/.bashrcto call these binaries with the appropriate flags more conveniently.
If you have a systemd service configured to run the LXD daemon from a previous installation of LXD, you may want to disable it to avoid version conflicts.