http://chriskief.com/2012/12/21/deploy-to-ec2-via-rightscale-using-git_ssh/

deploy.sh

#!/bin/bash -e

# switch to the attachment directory
cd $RS_ATTACH_DIR

# move the sync script
mv sync.sh /home/rightscale/.ssh/sync.sh

# make script executable
chmod u+x /home/rightscale/.ssh/sync.sh

# create temporary SSH key
cat > "/home/rightscale/.ssh/id_rsa" << EOF
$GIT_SSH_KEY

EOF

# chmod to 600
chmod 600 /home/rightscale/.ssh/id_rsa

# set GIT_SSH
export GIT_SSH=/home/rightscale/.ssh/sync.sh

# clone the repo
git clone --depth 1 git@bitbucket.org:myrepo/reponame.git /home/rightscale/$APPLICATION

# recompress assets
python /home/webapps/$APPLICATION/manage.py collectstatic --noinput -i css -i js
python /home/webapps/$APPLICATION/manage.py compress

# stop apache
service apache2 stop

# remove the current app directory
rm -rf /home/webapps/$APPLICATION

# move the new app directory into place
mv /home/rightscale/$APPLICATION /home/webapps/$APPLICATION

# restart apache
service apache2 start

# remove temporary SSH key
rm /home/rightscale/.ssh/id_rsa
rm /home/rightscale/.ssh/sync.sh