Vagrant provision script and Upstart service files to install and run etcd

etcd.conf

description "etcd Service"
author "Matthew Mihok"

env ETCD_HOME=/opt/etcd-3.0.1
env ETCD_DATA_DIR=/var/lib/etcd
env LOG_HOME=/var/log/etcd

# Run as etcd
setuid vagrant
setgid vagrant

# Make sure network and fs is up, and start in runlevels 2-5
start on (net-device-up
          and local-filesystems
          and runlevel [2345])
# Stop in runlevels 0,1 and 6
stop on runlevel [016]

# automatically respawn, but if its respwaning too fast (5 times in 60 seconds, don't do that)
respawn
respawn limit 5 60

# make sure node is there, the code directory is there
pre-start script
    test -d $ETCD_DATA_DIR || { stop; exit 0; }
    test -x $ETCD_HOME/etcd || { stop; exit 0; }
end script

# cd to code path and run node, with the right switches
script

    export ETCD_NAME=`cat /etc/hostname`
    exec etcd >> $LOG_HOME/etcd.log 2>&1

end script

etcd.override

env ETCD_DATA_DIR="/var/lib/etcd"
env ETCD_LISTEN_PEER_URLS="http://0.0.0.0:2380"
env ETCD_LISTEN_CLIENT_URLS="http://0.0.0.0:2379"
env ETCD_INITIAL_ADVERTISE_PEER_URLS="http://MY_IP:2380"
env ETCD_ADVERTISE_CLIENT_URLS="http://0.0.0.0:2379"
env ETCD_INITIAL_CLUSTER="MY_CLUSTER"
env ETCD_INITIAL_CLUSTER_STATE="MY_CLUSTER_STATE"

etcd.sh

#!/bin/bash

set -x;


# etcd

cd /opt/

# Download the release
curl -L https://github.com/coreos/etcd/releases/download/v3.0.1/etcd-v3.0.1-linux-amd64.tar.gz -o etcd-3.0.1.tar.gz

# Create the directory the binaries will live in
mkdir /opt/etcd-3.0.1

# Extract the contents of the release
tar -zxvf etcd-3.0.1.tar.gz  -C etcd-3.0.1 --strip-components=1

# Make symlinks so we can access the binaries
ln -s /opt/etcd-3.0.1/etcd /usr/local/bin/etcd
ln -s /opt/etcd-3.0.1/etcdctl /usr/local/bin/etcdctl

# Copy our Upstart script
cp /vagrant/etcd.conf /etc/init/etcd.conf

# Update our Upstart override files, and copy it into place
sed -e "s/MY_IP/$IP/g" -e "s/MY_CLUSTER_STATE/$CLUSTER_STATE/g" -e "s/MY_CLUSTER/$CLUSTER/g" </vagrant/etcd.override >/etc/init/etcd.override

# Creaate etcd's data director
mkdir /var/lib/etcd
chown vagrant:vagrant /var/lib/etcd

# Create etcd's logging directory
mkdir /var/log/etcd
chown vagrant:vagrant /var/log/etcd

# Start the service
start etcd