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kubernetes/contrib/rctools/stop.sh

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#!/bin/bash
# Copyright 2014 Google Inc. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# This command resizes a replication controller to 0.
KUBE_ROOT=$(dirname "${BASH_SOURCE}")/../..
KUBECTL="${KUBE_ROOT}/cluster/kubectl.sh"
RESIZE="${KUBE_ROOT}/contrib/rctools/resize.sh"
if [[ $# != 1 ]] ; then
echo "usage: $0 <replication controller name>" >&2
exit 1
fi
rc="$1"
"${RESIZE}" "$rc" 0
# kubectl describe output includes a line like:
# Replicas: 2 current / 2 desired
# Wait until it shows 0 pods
while true; do
pods=$(${KUBECTL} describe rc "$rc" | awk '/^Replicas:/{print $2}')
if [[ "$pods" -eq 0 ]] ; then
exit 0
else
echo "$pods remaining..."
fi
sleep 1
done
exit 1