Simple EC2 user_data script template to bootstrap an instance with chef

gistfile1.sh

#!/bin/bash
# log bash stdout and stderr to several places
exec > >(tee /var/log/user-data.log|logger -t user-data -s 2>/dev/console) 2>&1

set -x
set -e
export WORKING_DIR=/home/ubuntu

# chef-solo JSON configuration
# put your runlist, variables, etc. in here
cat > $WORKING_DIR/config.json <<DELIM
{
    "run_list": [
    ]
}
DELIM

export DEBIAN_FRONTEND=noninteractive

sudo aptitude install -q -y git-core
cat > $WORKING_DIR/my.id_rsa  <<DELIM
-----BEGIN RSA PRIVATE KEY-----
SNIP
-----END RSA PRIVATE KEY-----
DELIM
chmod 0600 $WORKING_DIR/my.id_rsa
cat > $WORKING_DIR/my_ssh_wrapper.sh <<DELIM
#!/bin/bash
ssh -i $WORKING_DIR/my.id_rsa -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no \$1 \$2 
DELIM
chmod +x $WORKING_DIR/my_ssh_wrapper.sh

export GIT_SSH=$WORKING_DIR/my_ssh_wrapper.sh

git clone SOME_REPO $WORKING_DIR/my-chef -b SOME_BRANCH
# run your chef install script from your repo
sudo $WORKING_DIR/my-chef/install_chef.sh

sed "s|^cookbook_path.*$|cookbook_path \['$WORKING_DIR/my-chef/cookbooks'\]|g" /usr/share/chef/solo.rb > /etc/chef/solo.rb

sudo chef-solo -j $WORKING_DIR/config.json