What happened?
I added a finalizer and a couple of annotations to an EndpointSlice. When I scaled the parent service down to 0 replicas the EndpointSlice's annotations and finalizers were deleted.
What did you expect to happen?
The EndpointSlice's annotations and finalizers don't change.
How can we reproduce it (as minimally and precisely as possible)?
Create a deployment and service:
kubectl create deployment echoserver --image=k8s.gcr.io/echoserver:1.10
kubectl create service nodeport echoserver --tcp=8080:8080
Add an annotation to the endpointslice that belongs to the service:
kubectl annotate endpointslices echoserver-d5gtd foo=bar # "d5gtd" will be different in your case
Verify that the annotation can be read:
kubectl get endpointslices echoserver-d5gtd -o=jsonpath='{.metadata.annotations}'
{"foo":"bar"}
Scale the deployment down to zero replicas:
kubectl scale deployment echoserver --replicas=0
It takes a few seconds for the pod to terminate, but once it does the annotation is destroyed:
kubectl get endpointslices echoserver-d5gtd -o=jsonpath='{.metadata.annotations}' # produces no output
Anything else we need to know?
No response
Kubernetes version
Details
$ kubectl version
Client Version: version.Info{Major:"1", Minor:"23", GitVersion:"v1.23.4", GitCommit:"e6c093d87ea4cbb530a7b2ae91e54c0842d8308a", GitTreeState:"clean", BuildDate:"2022-02-16T12:38:05Z", GoVersion:"go1.17.7", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"22+", GitVersion:"v1.22.6-3+7ab10db7034594", GitCommit:"7ab10db7034594f057421b40f64481638350b80b", GitTreeState:"clean", BuildDate:"2022-01-26T21:56:08Z", GoVersion:"go1.16.13", Compiler:"gc", Platform:"linux/amd64"}Cloud provider
Details
None, I'm running microk8s in a Vagrant VM on my development workstation.
OS version
Details
# On Linux:
$ cat /etc/os-release
PRETTY_NAME="Debian GNU/Linux 11 (bullseye)"
NAME="Debian GNU/Linux"
VERSION_ID="11"
VERSION="11 (bullseye)"
VERSION_CODENAME=bullseye
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"
$ uname -a
Linux refectory 5.10.0-10-amd64 #1 SMP Debian 5.10.84-1 (2021-12-08) x86_64 GNU/Linux
Install tools
Details
Microk8s
Container runtime (CRI) and and version (if applicable)
Details
n/a
Related plugins (CNI, CSI, ...) and versions (if applicable)
Details
n/a
What happened?
I added a finalizer and a couple of annotations to an EndpointSlice. When I scaled the parent service down to 0 replicas the EndpointSlice's annotations and finalizers were deleted.
What did you expect to happen?
The EndpointSlice's annotations and finalizers don't change.
How can we reproduce it (as minimally and precisely as possible)?
Create a deployment and service:
Add an annotation to the endpointslice that belongs to the service:
Verify that the annotation can be read:
Scale the deployment down to zero replicas:
It takes a few seconds for the pod to terminate, but once it does the annotation is destroyed:
Anything else we need to know?
No response
Kubernetes version
Details
Cloud provider
Details
None, I'm running microk8s in a Vagrant VM on my development workstation.OS version
Details
Install tools
Details
Microk8sContainer runtime (CRI) and and version (if applicable)
Details
n/aRelated plugins (CNI, CSI, ...) and versions (if applicable)
Details
n/a