[Unit]
Description=Launch Consul Cluster

[Service]
Restart=on-failure
RestartSec=45
ExecStartPre=/bin/sh -c 'echo -ne \'{"data_dir":\"/var/consul","server":true,"bootstrap_expect":1,\' > /tmp/consul.conf'
ExecStartPre=/bin/sh -c 'echo -ne \'"bind_addr":"\'$(ifconfig br0 | awk \'/inet addr/{print substr($2,6)}\')\'"}\' >> /tmp/consul.conf'
ExecStart=/usr/bin/consul agent -config-file=/tmp/consul.conf

[Install]
WantedBy=multi-user.target