56 lines
1.8 KiB
Text
56 lines
1.8 KiB
Text
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#!/bin/bash
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# Copyright 2014 The Kubernetes Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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set -o errexit
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set -o nounset
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set -o pipefail
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MOUNTER_VERSION=v2
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MOUNTER_USER=root
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ROOT_DIR=/home/kubernetes/bin
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RKT_BINARY=${ROOT_DIR}/rkt
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STAGE1_ACI=${ROOT_DIR}/stage1-fly.aci
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MOUNTER_ACI=${ROOT_DIR}/gci-mounter-${MOUNTER_VERSION}.aci
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MOUNTER_IMAGE=gcr.io/google_containers/gci-mounter:${MOUNTER_VERSION}
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function gc {
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# Attempt to garbage collect rkt pods with 5 retries.
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# Rkt pods end up creating new copies of mounts on the host. Hence it is ideal to clean them up right away.
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attempt=0
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until [ $attempt -ge 5 ]; do
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${RKT_BINARY} gc --grace-period=0s &> /dev/null
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attempt=$[$attempt+1]
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sleep 1
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done
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}
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# Garbage collect old rkt containers on exit
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trap gc EXIT
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if [[ ! $(${RKT_BINARY} image list | grep ${MOUNTER_IMAGE}) ]]; then
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${RKT_BINARY} fetch --insecure-options=image file://${MOUNTER_ACI}
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fi
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echo "Running mount using a rkt fly container"
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${RKT_BINARY} run --stage1-path=${STAGE1_ACI} \
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--insecure-options=image \
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--volume=kubelet,kind=host,source=/var/lib/kubelet,readOnly=false,recursive=true \
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--mount volume=kubelet,target=/var/lib/kubelet \
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${MOUNTER_IMAGE} --user=${MOUNTER_USER} --exec /bin/mount -- "$@"
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echo "Successfully ran mount using a rkt fly container"
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