When the disruption controller updates the PDB status, it removes all conditions from the new status object and then re-adds the sufficient pods condition. Unfortunately, this behavior removes conditions set by other controllers, leading to multiple consecutive updates.
Therefore, this commit ensures that conditions are preserved during updates.
When moving the reservation of a claim for a pod into the PreBind phase in a
future commit, multiple different update attempts will be executed
concurrently. We want an attempt to succeed if and only if adding the entry
passes validation. Without patch strategy and key, strategic-merge-patch
replaces the entire ReservedFor instead of adding new entries.
Server-side-apply cannot be used because each attempt may start with a stale
ResourceClaim (thus cannot send the entire ReservedFor) and SSA doesn't support
merging when using the same manager string. Using different managers (one for
each entry) would work, but sounds like a bad hack.
Explictly show the help msg that `kubeadm upgrade plan` can only run
on the node where "admin.conf" exists, normally, this is the control
plane node.
Signed-off-by: Dave Chen <dave.chen@arm.com>
Developers who are unaware of the Ginkgo wrappers in the framework might end up
passing the label decorators directly to Ginkgo. Previously, this led to an
error that was hard to understand without background knowledge:
Unknown Decorator
ginkgo.It("must deallocate on non graceful node shutdown", f.WithSerial(), f.WithDisruptive(), f.WithSlow(), func(ctx context.Context) {
/nvme/gopath/src/k8s.io/kubernetes/test/e2e/dra/dra.go:527
[It] node was passed an unknown decorator:
'framework.label{parts:[]string{"Serial"}, extra:""}'
Learn more at: http://onsi.github.io/ginkgo/#node-decorators-overview
When including a special field that Ginkgo dumps the message gets a bit better:
Unknown Decorator
ginkgo.It("must deallocate on non graceful node shutdown", f.WithSerial(), f.WithDisruptive(), f.WithSlow(), func(ctx context.Context) {
/nvme/gopath/src/k8s.io/kubernetes/test/e2e/dra/dra.go:527
[It] node was passed an unknown decorator:
'framework.label{parts:[]string{"Serial"}, extra:"", explanation:"If you see
this as part of an \"Unknown Decorator\" error from Ginkgo, then you need to
replace the ginkgo.It/Context/Describe call with the corresponding
framework.It/Context/Describe or (if available) f.It/Context/Describe."}'
Learn more at: http://onsi.github.io/ginkgo/#node-decorators-overview
