65 lines
1.9 KiB
Bash
65 lines
1.9 KiB
Bash
# Copyright 2017 The Promenade 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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function validate_environment {
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local ERRORS=
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if [ "x${NODE_HOSTNAME}" = "x" ]; then
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echo Error: NODE_HOSTNAME not defined, but required.
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ERRORS=1
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fi
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if ! docker info; then
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cat <<EOS
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Error: Unable to run `docker info`. You must mount /var/run/docker.sock when
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you run this container, since it is used to launch containers on the host:
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docker run -v /var/run/docker.sock:/var/run/docker.sock ...
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EOS
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ERRORS=1
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fi
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if [ ! -d /target/etc/systemd/system ]; then
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cat <<EOS
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Error: It appears that the host's root filesystem is not mounted at /target.
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Make sure it is mounted:
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docker run -v /:/target ...
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EOS
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ERRORS=1
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fi
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if [ "x$ERRORS" != "x" ]; then
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exit 1
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fi
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}
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function install_assets {
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mkdir /target/etc/kubernetes
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cp -R ./assets/* /target/etc/kubernetes
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}
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function install_cni {
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mkdir -p /opt/cni/bin
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tar xf cni.tgz -C /opt/cni/bin/
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}
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function install_kubelet {
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cp ./kubelet /target/usr/local/bin/kubelet
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cat ./kubelet.service.template | envsubst > /target/etc/systemd/system/kubelet.service
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chown root:root /target/etc/systemd/system/kubelet.service
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chmod 644 /target/etc/systemd/system/kubelet.service
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chroot --userspec root:root /target /bin/bash < ./scripts/start-kubelet.sh
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}
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