Consul

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Download Consul, unpack the binary, and put it in /usr/local/sbin.

Set up the user and its home directory:

mkdir /var/lib/consul
useradd consul -d /var/lib/consul
chown consul: /var/lib/consul
chmod 0700 /var/lib/consul

Create a basic configuration file in /etc/consul.d/server/config.json:

mkdir -p /etc/consul.d/server

{
  "bootstrap": false,
  "server": true,
  "log_level": "INFO"
  "enable_syslog": true,
  "ui": true
}

Create an init configuration file at /etc/init/consul.conf:

description "Consul server process"

start on (local-filesystems and net-device-up IFACE=eth0)
stop on runlevel [!12345]

respawn

setuid consul
setgid consul

exec consul agent -config-dir /etc/consul.d/server

Start the Consul service:

service consul start