bootstrap-consul

#!/bin/bash
CONSUL_VERSION=${CONSUL_VERSION:-0.4.1}

source /etc/environment
name=$(cat /etc/machine-id)

if [ ! -f /opt/consul ]; then
        [ -d /opt ] || mkdir /opt
        mkdir /var/lib/consul
        wget -q -O- https://dl.bintray.com/mitchellh/consul/${CONSUL_VERSION}_linux_amd64.zip | funzip - > /opt/consul
        chmod +x /opt/consul
fi

if etcdctl mk /consul.io/bootstrap/started true; then
        flags="${flags} -bootstrap-expect 3"
else
        echo "This cluster has already been bootstrapped"
fi

etcdctl set /consul.io/bootstrap/machines/${name} ${COREOS_PRIVATE_IPV4}

flags=$(etcdctl ls /consul.io/bootstrap/machines | while read line; do
        ip=$(etcdctl get ${line})
        echo ${flags} -join ${ip}
done)

echo ${flags}

/opt/consul agent -data-dir /var/lib/consul -server ${flags}

user-data

#cloud-config

coreos:
  etcd:
      # generate a new token for each unique cluster from https://discovery.etcd.io/new
      # WARNING: replace each time you 'vagrant destroy'
      discovery: https://discovery.etcd.io/<insert-discovery-token>
      addr: $public_ipv4:4001
      peer-addr: $public_ipv4:7001
  units:
    - name: etcd.service
      command: start
    - name: fleet.service
      command: start
      runtime: no
      content: |
        [Unit]
        Description=fleet

        [Service]
        Environment=FLEET_PUBLIC_IP=$public_ipv4
        ExecStart=/usr/bin/fleet
    - name: consul.service
      command: start
      runtime: no
      content: |
        [Unit]
        Description=consul

        [Service]
        ExecStartPre=-/usr/bin/mkdir /opt
        ExecStartPre=-/usr/bin/wget --retry-connrefused -t 0 -nc -O /opt/bootstrap-consul https://gist.github.com/nabeken/31dc22e98b2151db6016/raw/b1fa98384d264658e8ef2d537dcda212ffa88266/bootstrap-consul
        ExecStartPre=-/usr/bin/chmod +x /opt/bootstrap-consul
        ExecStart=/opt/bootstrap-consul
        [X-Fleet]
        Global=true
    - name: docker-tcp.socket
      command: start
      enable: true
      content: |
        [Unit]
        Description=Docker Socket for the API

        [Socket]
        ListenStream=2375
        Service=docker.service
        BindIPv6Only=both

        [Install]
        WantedBy=sockets.target