cri-o/vendor/k8s.io/kubernetes/cluster/gce/trusty/helper.sh

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#!/bin/bash
# Copyright 2015 The Kubernetes Authors.
#
# 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.
# A library of helper functions and constant for ubuntu os distro
# The configuration is based on upstart, which is in Ubuntu up to 14.04 LTS (Trusty).
# Ubuntu 15.04 and above replaced upstart with systemd as the init system.
# Consequently, the configuration cannot work on these images. In release-1.2 branch,
# GCI and Trusty share the configuration code. We have to keep the GCI specific code
# here as long as the release-1.2 branch has not been deprecated.
# Creates the GCI specific metadata files if they do not exit.
# Assumed var
# KUBE_TEMP
function ensure-gci-metadata-files {
if [[ ! -f "${KUBE_TEMP}/gci-update.txt" ]]; then
cat >"${KUBE_TEMP}/gci-update.txt" << EOF
update_disabled
EOF
fi
if [[ ! -f "${KUBE_TEMP}/gci-docker.txt" ]]; then
cat >"${KUBE_TEMP}/gci-docker.txt" << EOF
true
EOF
fi
}