Merge pull request kubernetes#94669 from vteratipally/revert-94634-master

Revert "Switch cos version to M85"

Author: k8s-ci-robot

cluster/gce/config-default.sh

@@ -83,7 +83,7 @@ fi
 # you are updating the os image versions, update this variable.
 # Also please update corresponding image for node e2e at:
 # https://github.com/kubernetes/kubernetes/blob/master/test/e2e_node/jenkins/image-config.yaml
-GCI_VERSION=${KUBE_GCI_VERSION:-cos-rc-85-13310-1040-0}
+GCI_VERSION=${KUBE_GCI_VERSION:-cos-81-12871-59-0}
 export MASTER_IMAGE=${KUBE_GCE_MASTER_IMAGE:-}
 export MASTER_IMAGE_PROJECT=${KUBE_GCE_MASTER_PROJECT:-cos-cloud}
 export NODE_IMAGE=${KUBE_GCE_NODE_IMAGE:-${GCI_VERSION}}

cluster/gce/config-test.sh

@@ -89,7 +89,7 @@ ALLOWED_NOTREADY_NODES=${ALLOWED_NOTREADY_NODES:-$(($(get-num-nodes) / 100))}
 # you are updating the os image versions, update this variable.
 # Also please update corresponding image for node e2e at:
 # https://github.com/kubernetes/kubernetes/blob/master/test/e2e_node/jenkins/image-config.yaml
-GCI_VERSION=${KUBE_GCI_VERSION:-cos-rc-85-13310-1040-0}
+GCI_VERSION=${KUBE_GCI_VERSION:-cos-81-12871-59-0}
 export MASTER_IMAGE=${KUBE_GCE_MASTER_IMAGE:-}
 export MASTER_IMAGE_PROJECT=${KUBE_GCE_MASTER_PROJECT:-cos-cloud}
 export NODE_IMAGE=${KUBE_GCE_NODE_IMAGE:-${GCI_VERSION}}