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9 Commits
Author SHA1 Message Date
Sébastien Han 91b76cc24c doc: update design links 
Since we re-organized the design directory we need to update the links
in various files.

Signed-off-by: Sébastien Han <seb@redhat.com>
 2019-11-15 11:29:46 +01:00
Rohan CJ 1ba2633c27 Ceph: Clean up canaries on nodes that no longer have OSDs or when the node is deleted. 
This prevents long-lasting false positives that prevent the ordered progression
of drains.

Signed-off-by: Rohan CJ <rohantmp@gmail.com>
 2019-11-13 16:04:45 +05:30
Rohan CJ dd3f0ca63c Ceph: Set the drain-canaries deployment ownerReference to the rook operator. 
The drain canary was not being garbage collected properly.

Signed-off-by: Rohan CJ <rohantmp@gmail.com>
 2019-11-13 16:04:45 +05:30
Rohan CJ a930264b55 Ceph: Add node topology labels to the drain-canary. 
This serves to make the drain-canary selectable by failure domain.

Signed-off-by: Rohan CJ <rohantmp@gmail.com>
 2019-11-13 16:04:45 +05:30
Rohan CJ b16d55f4a0 Ceph: fix the deduplication of tolerations collected for the drain-canary 
- Implement exportable TolerationSet with the following differences:
  - Change map key to a string to ensure it is deterministic.
    The old key was a struct that included a pointer.
  - Sort the outputted list by this key to ensure the order is deterministic.
  - Get the tolerations from the deployment instead of the pod as pod tolerations
    are sometimes modified by the system. We only want user provided tolerations
    in our deployment.
- Modify tests to try duplicate keys from different structs. The old way tested duplicate
  keys using the same structs.

Signed-off-by: Rohan CJ <rohantmp@gmail.com>
 2019-10-30 22:42:01 +05:30
Rohan CJ 17f6a25b2b Ceph: use the rook image for drain-canaries. 
Change the canaries to use the rook image instead of the busybox image to
run `sleep infinity`. This removes our dependency on an external image that
we do not control.

Signed-off-by: Rohan CJ <rohantmp@gmail.com>
 2019-10-30 12:47:14 +05:30
Rohan CJ 195f20ad01 Pick up tolerations for drain canary pod from the osd. 
This change is necessary drain canary pod needs to be schedulable on
the same nodes as the OSDs. Since it affects multiple OSDs, we need to
gather tolerations from multiple OSDs.

Signed-off-by: Rohan CJ <rohantmp@gmail.com>
 2019-09-20 15:15:08 +05:30
Rohan CJ e1bd6595d7 Fix: only schedule node drain canaries on nodes with osds 
Signed-off-by: Rohan CJ <rohantmp@gmail.com>
 2019-09-06 09:41:56 +05:30
Rohan CJ 4072d14557 Add tests for the clusterdisruption controller and update the docs and 
pending releas notes for managed PDBs.

Signed-off-by: Rohan CJ <rohantmp@gmail.com>
 2019-08-30 14:04:23 +05:30