Is there any way I can upgrade the cos image for my GKE nodes? I run cos-stable-59-9460-73-0 now, but I can see that there is a new stable image available:
$ gcloud compute images list --project cos-cloud --no-standard-images NAME PROJECT FAMILY DEPRECATED STATUS ... cos-stable-59-9460-73-0 cos-cloud cos-stable READY cos-stable-60-9592-84-0 cos-cloud cos-stable READY
It seems that the image I'm running for my nodes is specified in the instance template, but the template is managed by GKE and it seems as I can't modify it.
I have tried running
sudo update_engine_client --update on the nodes but with no luck.
Is it possible to upgrade manually or do I simply have to wait for the auto-upgrade?