doc/dev_guide: add needs-upgrade-testing label info

Add an explanation of the "needs-upgrade-testing" label and explain when
to use it.

Laura is the true author of this text.

Co-authored-by: Laura Flores <lflores@ibm.com>
Signed-off-by: Zac Dover <zac.dover@proton.me>
(cherry picked from commit 02d5a6a3371c9fa52a32124cf07da16b89a11e27)

diff --git a/doc/dev/developer_guide/basic-workflow.rst b/doc/dev/developer_guide/basic-workflow.rst
index 53c9c18e8244065e94532881ca5a7ce31bb2d9cd..4cd496f0a4ad028ce9c7e022292e2f60de36074d 100644 (file)
--- a/doc/dev/developer_guide/basic-workflow.rst
+++ b/doc/dev/developer_guide/basic-workflow.rst
@@ -415,6 +415,10 @@ need testing to be merged into a single branch and tested all at the same time.
 Since teuthology suites can take hours (even days in some cases) to run, this
 can save a lot of time.
 
+If your code change has any effect on upgrades, add the
+``needs-upgrade-testing`` label. This indicates that an upgrade testing suite
+should be scheduled.
+
 To request access to the Sepia lab, start `here
 <https://wiki.sepia.ceph.com/doku.php?id=vpnaccess>`_.