51 lines
1.7 KiB
Bash
Executable File
51 lines
1.7 KiB
Bash
Executable File
#!/bin/bash
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# Simple systemd unit generator for etcd
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# Copyright (c) Vitaliy Filippov, 2019+
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# License: MIT
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# USAGE: [IP_SUBSTR=10.200.1.] [ETCD_HOSTS=etcd0=http://10.200.1.10:2380,...] ./make-etcd.sh
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IP_SUBSTR=${IP_SUBSTR:-10.200.1.}
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ETCD_HOSTS=${ETCD_HOSTS:-etcd0=http://10.200.1.10:2380,etcd1=http://10.200.1.11:2380,etcd2=http://10.200.1.12:2380}
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# determine IP
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IP=`ip -json a s | jq -r '.[].addr_info[] | select(.local | startswith("'$IP_SUBSTR'")) | .local'`
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[ "$IP" != "" ] || exit 1
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ETCD_NUM=${ETCD_HOSTS/$IP*/}
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[ "$ETCD_NUM" != "$ETCD_HOSTS" ] || exit 1
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ETCD_NUM=$(echo $ETCD_NUM | tr -d -c , | wc -c)
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useradd etcd
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mkdir -p /var/lib/etcd$ETCD_NUM.etcd
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cat >/etc/systemd/system/etcd.service <<EOF
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[Unit]
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Description=etcd for vitastor
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After=network-online.target local-fs.target time-sync.target
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Wants=network-online.target local-fs.target time-sync.target
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[Service]
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Restart=always
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ExecStart=/usr/local/bin/etcd -name etcd$ETCD_NUM --data-dir /var/lib/etcd$ETCD_NUM.etcd \\
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--advertise-client-urls http://$IP:2379 --listen-client-urls http://$IP:2379 \\
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--initial-advertise-peer-urls http://$IP:2380 --listen-peer-urls http://$IP:2380 \\
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--initial-cluster-token vitastor-etcd-1 --initial-cluster $ETCD_HOSTS \\
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--initial-cluster-state new --max-txn-ops=100000 --max-request-bytes=104857600 \\
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--auto-compaction-retention=10 --auto-compaction-mode=revision
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WorkingDirectory=/var/lib/etcd$ETCD_NUM.etcd
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ExecStartPre=+chown -R etcd /var/lib/etcd$ETCD_NUM.etcd
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User=etcd
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PrivateTmp=false
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TasksMax=infinity
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Restart=always
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StartLimitInterval=0
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RestartSec=10
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[Install]
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WantedBy=local.target
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EOF
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systemctl daemon-reload
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systemctl enable etcd
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systemctl start etcd
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