KEP-3857: Recursive Read-only (RRO) mounts: promote to Beta

Signed-off-by: Akihiro Suda <[email protected]>

keps/prod-readiness/sig-node/3857.yaml

@@ -1,3 +1,5 @@
 kep-number: 3857
 alpha:
   approver: "@johnbelamaric"
+beta:
+  approver: "@soltysh"

keps/sig-node/3857-rro-mounts/README.md

@@ -693,9 +693,12 @@ in back-to-back releases.
 
 #### Beta
 - e2e tests pass with containerd, CRI-O, and cri-dockerd
+ - https://github.com/containerd/containerd/pull/9787
+ - https://github.com/cri-o/cri-o/pull/7962
+ - https://github.com/Mirantis/cri-dockerd/pull/370
 
 #### GA
-- (Will be revisited during beta)
+- Two beta releases at least
 
 ### Upgrade / Downgrade Strategy
 

keps/sig-node/3857-rro-mounts/kep.yaml

@@ -6,7 +6,7 @@ owning-sig: sig-node
 #participating-sigs:
 #  - sig-aaa
 #  - sig-bbb
-status: implementable
+status: implemented
 creation-date: 2023-02-09
 reviewers:
   - "@thockin"
@@ -21,17 +21,17 @@ approvers:
 #  - "/keps/sig-ccc/3456-replaced-kep"
 #
 # The target maturity stage in the current dev cycle for this KEP.
-stage: alpha
+stage: beta
 
 # The most recent milestone for which work toward delivery of this KEP has been
 # done. This can be the current (upcoming) milestone, if it is being actively
 # worked on.
-latest-milestone: "v1.30"
+latest-milestone: "v1.31"
 
 # The milestone at which this feature was, or is targeted to be, at each stage.
 milestone:
   alpha: "v1.30"
-#  beta: "v1.XX"
+  beta: "v1.31"
 #  stable: "v1.XX"
 
 # The following PRR answers are required at alpha release