k8s.io/kubernetes@v1.31.0-alpha.0.0.20240520171757-56147500dadc/cluster/gce/gci/shutdown.sh (about)

     1  #!/usr/bin/env bash
     2  
     3  # Copyright 2016 The Kubernetes Authors.
     4  #
     5  # Licensed under the Apache License, Version 2.0 (the "License");
     6  # you may not use this file except in compliance with the License.
     7  # You may obtain a copy of the License at
     8  #
     9  #     http://www.apache.org/licenses/LICENSE-2.0
    10  #
    11  # Unless required by applicable law or agreed to in writing, software
    12  # distributed under the License is distributed on an "AS IS" BASIS,
    13  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14  # See the License for the specific language governing permissions and
    15  # limitations under the License.
    16  
    17  # A script that let's gci preemptible nodes gracefully terminate in the event of a VM shutdown.
    18  preemptible=$(curl "http://metadata.google.internal/computeMetadata/v1/instance/scheduling/preemptible" -H "Metadata-Flavor: Google")
    19  if [ "${preemptible}" == "TRUE" ]; then
    20      echo "Shutting down! Sleeping for a minute to let the node gracefully terminate"
    21      # https://cloud.google.com/compute/docs/instances/stopping-or-deleting-an-instance#delete_timeout
    22      sleep 30
    23  fi