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99 lines
3.0 KiB
Bash
Executable File
99 lines
3.0 KiB
Bash
Executable File
#!/usr/bin/env 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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MASTER_ADDRESS=${1:-"8.8.8.18"}
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NODE_ADDRESS=${2:-"8.8.8.20"}
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DNS_SERVER_IP=${3:-"192.168.3.100"}
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DNS_DOMAIN=${4:-"cluster.local"}
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KUBECONFIG_DIR=${KUBECONFIG_DIR:-/opt/kubernetes/cfg}
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# Generate a kubeconfig file
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cat <<EOF > "${KUBECONFIG_DIR}/kubelet.kubeconfig"
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apiVersion: v1
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kind: Config
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clusters:
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- cluster:
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server: http://${MASTER_ADDRESS}:8080/
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name: local
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contexts:
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- context:
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cluster: local
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name: local
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current-context: local
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EOF
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cat <<EOF >/opt/kubernetes/cfg/kubelet
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# --logtostderr=true: log to standard error instead of files
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KUBE_LOGTOSTDERR="--logtostderr=true"
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# --v=0: log level for V logs
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KUBE_LOG_LEVEL="--v=4"
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# --address=0.0.0.0: The IP address for the Kubelet to serve on (set to 0.0.0.0 for all interfaces)
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NODE_ADDRESS="--address=${NODE_ADDRESS}"
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# --port=10250: The port for the Kubelet to serve on. Note that "kubectl logs" will not work if you set this flag.
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NODE_PORT="--port=10250"
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# --hostname-override="": If non-empty, will use this string as identification instead of the actual hostname.
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NODE_HOSTNAME="--hostname-override=${NODE_ADDRESS}"
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# Path to a kubeconfig file, specifying how to connect to the API server.
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KUBELET_KUBECONFIG="--kubeconfig=${KUBECONFIG_DIR}/kubelet.kubeconfig"
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# --allow-privileged=false: If true, allow containers to request privileged mode. [default=false]
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KUBE_ALLOW_PRIV="--allow-privileged=false"
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# DNS info
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KUBELET__DNS_IP="--cluster-dns=${DNS_SERVER_IP}"
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KUBELET_DNS_DOMAIN="--cluster-domain=${DNS_DOMAIN}"
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# Add your own!
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KUBELET_ARGS=""
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EOF
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KUBELET_OPTS=" \${KUBE_LOGTOSTDERR} \\
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\${KUBE_LOG_LEVEL} \\
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\${NODE_ADDRESS} \\
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\${NODE_PORT} \\
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\${NODE_HOSTNAME} \\
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\${KUBELET_KUBECONFIG} \\
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\${KUBE_ALLOW_PRIV} \\
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\${KUBELET__DNS_IP} \\
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\${KUBELET_DNS_DOMAIN} \\
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\$KUBELET_ARGS"
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cat <<EOF >/usr/lib/systemd/system/kubelet.service
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[Unit]
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Description=Kubernetes Kubelet
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After=docker.service
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Requires=docker.service
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[Service]
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EnvironmentFile=-/opt/kubernetes/cfg/kubelet
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ExecStart=/opt/kubernetes/bin/kubelet ${KUBELET_OPTS}
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Restart=on-failure
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KillMode=process
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RestartSec=15s
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[Install]
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WantedBy=multi-user.target
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EOF
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systemctl daemon-reload
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systemctl enable kubelet
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systemctl restart kubelet
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