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kubelet.sh
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kubelet.sh
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#!/bin/bash
# Copyright 2014 The Kubernetes Authors 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.
MASTER_ADDRESS=${1:-"8.8.8.18"}
NODE_ADDRESS=${2:-"8.8.8.20"}
cat <<EOF >/opt/kubernetes/cfg/kubelet
# --logtostderr=true: log to standard error instead of files
KUBE_LOGTOSTDERR="--logtostderr=true"
# --v=0: log level for V logs
KUBE_LOG_LEVEL="--v=4"
# --address=0.0.0.0: The IP address for the Kubelet to serve on (set to 0.0.0.0 for all interfaces)
NODE_ADDRESS="--address=${NODE_ADDRESS}"
# --port=10250: The port for the Kubelet to serve on. Note that "kubectl logs" will not work if you set this flag.
NODE_PORT="--port=10250"
# --hostname-override="": If non-empty, will use this string as identification instead of the actual hostname.
NODE_HOSTNAME="--hostname-override=${NODE_ADDRESS}"
# --api-servers=[]: List of Kubernetes API servers for publishing events,
# and reading pods and services. (ip:port), comma separated.
KUBELET_API_SERVER="--api-servers=${MASTER_ADDRESS}:8080"
# --allow-privileged=false: If true, allow containers to request privileged mode. [default=false]
KUBE_ALLOW_PRIV="--allow-privileged=false"
# Add your own!
KUBELET_ARGS=""
EOF
KUBE_PROXY_OPTS=" \${KUBE_LOGTOSTDERR} \\
\${KUBE_LOG_LEVEL} \\
\${NODE_ADDRESS} \\
\${NODE_PORT} \\
\${NODE_HOSTNAME} \\
\${KUBELET_API_SERVER} \\
\${KUBE_ALLOW_PRIV} \\
\${KUBELET_ARGS}"
cat <<EOF >/usr/lib/systemd/system/kubelet.service
[Unit]
Description=Kubernetes Kubelet
After=docker.service
Requires=docker.service
[Service]
EnvironmentFile=-/opt/kubernetes/cfg/kubelet
ExecStart=/opt/kubernetes/bin/kubelet ${KUBE_PROXY_OPTS}
Restart=on-failure
KillMode=process
[Install]
WantedBy=multi-user.target
EOF
systemctl daemon-reload
systemctl enable kubelet
systemctl start kubelet