Improvements

Rook v1.2.4 is a patch release limited in scope and focusing on bug fixes.

Ceph

• Stop garbage collector from deleting the CSI driver unexpectedly (#4820, @travisn)
• Upgrade legacy OSDs created with partitions created by Rook (#4799, @leseb)
• Ability to set the pool target_size_ratio (#4803, @leseb)
• Improve detection of drain-canaries and log significant nodedrain scheduling events (#4679, @rohantmp)
• Sort flexvolume docs and update for kubespray (#4747, @ftab)
• Add OpenShift common issues documentation (#4764, @umangachapagain)
• Improved integration test when cleaning devices (#4796, @leseb)