Revinate Cloud Instance Provisioning

gistfile1.txt

##
## Revinate Cloud Instance Provisioning
## Chris Snell <chris.snell@revinate.com>
##

# We only run this block if the file /etc/firstboot exists
if [ -f /etc/firstboot ]; then

    # These are the URLs for the EC2-compatible metadata service running in our cloud
    HOSTNAME_METADATA="http://169.254.169.254/2009-04-04/meta-data/hostname"
    LOCAL_IP_METADATA="http://169.254.169.254/2009-04-04/meta-data/local-ipv4"

    # The base domain for all of our instances
    DOMAIN="revinate.net"

    # Fetch the hostname from the metadata service
    HOSTNAME=`curl -s $HOSTNAME_METADATA | sed -e 's/.novalocal//'`

    LOCAL_IP=`curl -s $LOCAL_IP_METADATA`

    FQDN=${HOSTNAME}.${DOMAIN}

    echo "FQDN: $FQDN  LOCAL_IP: $LOCAL_IP"

    echo "" >> /etc/hosts
    echo "# Set automatically at instance creation time by /etc/rc.local" >> /etc/hosts
    echo "$LOCAL_IP $FQDN $HOSTNAME" >> /etc/hosts

    # Save our hostname to /etc/hostname
    echo $HOSTNAME > /etc/hostname
    # And set the current hostname, too
    hostname $HOSTNAME

    # Remove /etc/firstboot now that we've provisoned
    rm -f /etc/firstboot

fi