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# Contributing to virtiofsd
virtiofsd is an open source project licensed under the [Apache v2 License](https://opensource.org/licenses/Apache-2.0) and the [BSD 3 Clause](https://opensource.org/licenses/BSD-3-Clause) license.
## Coding Style
We follow the [Rust Style](https://github.com/rust-dev-tools/fmt-rfcs/blob/master/guide/guide.md)
convention and enforce it through the Continuous Integration (CI) process calling into `rustfmt`
for each submitted Pull Request (PR).
## Certificate of Origin
In order to get a clear contribution chain of trust we use the [signed-off-by language](https://01.org/community/signed-process)
used by the Linux kernel project.
## Patch format
Beside the signed-off-by footer, we expect each patch to comply with the following format:
```
Change summary
More detailed explanation of your changes: Why and how.
Wrap it to 72 characters.
See http://chris.beams.io/posts/git-commit/
for some more good pieces of advice.
Signed-off-by: <contributor@foo.com>
```
For example:
```
Implement support for optional sandboxing
Implement support for setting up a sandbox for running the
service. The technique for this has been borrowed from virtiofsd, and
consists on switching to new PID, mount and network namespaces, and
then switching root to the directory to be shared.
Future patches will implement additional hardening features like
dropping capabilities and seccomp filters.
Signed-off-by: Sergio Lopez <slp@redhat.com>
```
## Pull requests
virtiofsd uses the “fork-and-merge” development model. Follow these steps if
you want to merge your changes to `virtiofsd`:
1. Fork the [virtiofsd](https://gitlab.com/virtio-fs/virtiofsd) project
into your GitLab organization.
2. Within your fork, create a branch for your contribution.
3. [Create a merge request](https://docs.gitlab.com/ee/user/project/merge_requests/creating_merge_requests.html)
against the master branch of the virtiofsd repository.
4. Once the merge request is approved, one of the maintainers will merge it.
## Issue tracking
If you have a problem, please let us know. We recommend using
[gitlab issues](https://gitlab.com/virtio-fs/virtiofsd/-/issues/new) for formally
reporting and documenting them.
You can also contact us via email through the [virtio-fs mailing list](https://www.redhat.com/mailman/listinfo/virtio-fs).
## Closing issues
You can either close issues manually by adding the fixing commit SHA1 to the issue
comments or by adding the `Fixes` keyword to your commit message.
After the corresponding MR is merged, GitLab will automatically close that issue when parsing the
[commit message](https://docs.gitlab.com/ee/user/project/issues/managing_issues.html#closing-issues-automatically).
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