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74 lines
2.2 KiB
Bash
74 lines
2.2 KiB
Bash
#!/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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ETCD_SERVERS=${1:-"http://8.8.8.18:4001"}
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FLANNEL_NET=${2:-"172.16.0.0/16"}
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CA_FILE="/srv/kubernetes/etcd/ca.pem"
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CERT_FILE="/srv/kubernetes/etcd/client.pem"
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KEY_FILE="/srv/kubernetes/etcd/client-key.pem"
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cat <<EOF >/opt/kubernetes/cfg/flannel
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FLANNEL_ETCD="-etcd-endpoints=${ETCD_SERVERS}"
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FLANNEL_ETCD_KEY="-etcd-prefix=/coreos.com/network"
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FLANNEL_ETCD_CAFILE="--etcd-cafile=${CA_FILE}"
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FLANNEL_ETCD_CERTFILE="--etcd-certfile=${CERT_FILE}"
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FLANNEL_ETCD_KEYFILE="--etcd-keyfile=${KEY_FILE}"
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EOF
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cat <<EOF >/usr/lib/systemd/system/flannel.service
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[Unit]
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Description=Flanneld overlay address etcd agent
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After=network.target
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[Service]
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EnvironmentFile=-/opt/kubernetes/cfg/flannel
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ExecStart=/opt/kubernetes/bin/flanneld --ip-masq \${FLANNEL_ETCD} \${FLANNEL_ETCD_KEY} \${FLANNEL_ETCD_CAFILE} \${FLANNEL_ETCD_CERTFILE} \${FLANNEL_ETCD_KEYFILE}
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Type=notify
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[Install]
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WantedBy=multi-user.target
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EOF
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# Store FLANNEL_NET to etcd.
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attempt=0
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while true; do
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/opt/kubernetes/bin/etcdctl --ca-file ${CA_FILE} --cert-file ${CERT_FILE} --key-file ${KEY_FILE} \
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--no-sync -C ${ETCD_SERVERS} \
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get /coreos.com/network/config >/dev/null 2>&1
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if [[ "$?" == 0 ]]; then
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break
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else
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if (( attempt > 600 )); then
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echo "timeout for waiting network config" > ~/kube/err.log
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exit 2
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fi
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/opt/kubernetes/bin/etcdctl --ca-file ${CA_FILE} --cert-file ${CERT_FILE} --key-file ${KEY_FILE} \
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--no-sync -C ${ETCD_SERVERS} \
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mk /coreos.com/network/config "{\"Network\":\"${FLANNEL_NET}\"}" >/dev/null 2>&1
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attempt=$((attempt+1))
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sleep 3
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fi
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done
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wait
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systemctl enable flannel
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systemctl daemon-reload
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systemctl restart flannel
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