github.com/dims/containerd@v0.2.5/CONTRIBUTING.md (about)

     1  # Contributing
     2  
     3  ## Sign your work
     4  
     5  The sign-off is a simple line at the end of the explanation for the patch. Your
     6  signature certifies that you wrote the patch or otherwise have the right to pass
     7  it on as an open-source patch. The rules are pretty simple: if you can certify
     8  the below (from [developercertificate.org](http://developercertificate.org/)):
     9  
    10  ```
    11  Developer Certificate of Origin
    12  Version 1.1
    13  
    14  Copyright (C) 2004, 2006 The Linux Foundation and its contributors.
    15  660 York Street, Suite 102,
    16  San Francisco, CA 94110 USA
    17  
    18  Everyone is permitted to copy and distribute verbatim copies of this
    19  license document, but changing it is not allowed.
    20  
    21  Developer's Certificate of Origin 1.1
    22  
    23  By making a contribution to this project, I certify that:
    24  
    25  (a) The contribution was created in whole or in part by me and I
    26      have the right to submit it under the open source license
    27      indicated in the file; or
    28  
    29  (b) The contribution is based upon previous work that, to the best
    30      of my knowledge, is covered under an appropriate open source
    31      license and I have the right under that license to submit that
    32      work with modifications, whether created in whole or in part
    33      by me, under the same open source license (unless I am
    34      permitted to submit under a different license), as indicated
    35      in the file; or
    36  
    37  (c) The contribution was provided directly to me by some other
    38      person who certified (a), (b) or (c) and I have not modified
    39      it.
    40  
    41  (d) I understand and agree that this project and the contribution
    42      are public and that a record of the contribution (including all
    43      personal information I submit with it, including my sign-off) is
    44      maintained indefinitely and may be redistributed consistent with
    45      this project or the open source license(s) involved.
    46  ```
    47  
    48  Then you just add a line to every git commit message:
    49  
    50      Signed-off-by: Joe Smith <joe.smith@email.com>
    51  
    52  Use your real name (sorry, no pseudonyms or anonymous contributions.)
    53  
    54  If you set your `user.name` and `user.email` git configs, you can sign your
    55  commit automatically with `git commit -s`.