Pull Metadata From Cloud Formation And Run Chef

gistfile1.txt

#!/bin/bash

if [ `whoami` != root ]; then
 echo "---- Please run this as the 'root' user";
 exit 1
fi

# Static settings
dir=/etc/chef/lwe-repo
md_file=/etc/chef/metadata.json

# Validate Cloud Formation Metadata retrieval script is present
# See /etc/rc.local for generation of this file
if [ ! -x /etc/chef/get-metadata.sh ];then
  echo "/etc/chef/get-metadata.sh not present, exiting."
  exit 1
fi

# Retrieve metadata from Cloud Formation
/etc/chef/get-metadata.sh > $md_file
if [ $? -ne 0 ]; then
  echo "Error retrieving metadata"
  exit 1
fi

# Chef settings
role=`cat $md_file | grep '"Role"' |awk '{print $2}' |cut -d\" -f2`
repo=`cat $md_file | grep '"ChefGitRepo"' |awk '{print $2}' |cut -d\" -f2`
version=`cat $md_file | grep '"ChefRepoVersion"' |awk '{print $2}' |cut -d\" -f2`

# S3 Config
ssh_key=`cat $md_file | grep '"SSHKey"' |awk '{print $2}' |cut -d\" -f2`
ssh_keys_bucket=`cat $md_file | grep '"SSHKeyBucket"' |awk '{print $2}' |cut -d\" -f2`
aws_access_key_id=`cat $md_file | grep '"Access-Key"' |awk '{print $2}' |cut -d\" -f2`
aws_secret_access_key=`cat $md_file | grep '"Secret-Key"' |awk '{print $2}' |cut -d\" -f2`

if [ ! -f /root/.s3cfg ]; then
  # Configure s3cmd to access our acct
  touch /root/.s3cfg
  chmod 700 /root/.s3cfg
  echo "[default]" >> /root/.s3cfg
  echo "access_key = $aws_access_key_id" >> /root/.s3cfg
  echo "secret_key = $aws_secret_access_key" >> /root/.s3cfg
fi

if [ ! -f /root/.ssh/id_rsa ]; then
  # Downlaod the users ssh key
  runuser -c "s3cmd get s3://$ssh_keys_bucket/$ssh_key /root/.ssh/id_rsa" root
  chmod 600 /root/.ssh/id_rsa
fi

if [ ! -d $dir ]; then
  env GIT_SSH='/etc/chef/git_ssh.sh' git clone $repo $dir
else
  git checkout master
  cd $dir && env GIT_SSH='/etc/chef/git_ssh.sh' git pull
fi

if [ $? -ne 0 ]; then
  echo "Error retrieving chef repository"
  exit 1
fi

git checkout $version
if [ $? -ne 0 ]; then
  echo "Error checking out requested version"
  exit 1
fi

git reset --hard $version
if [ $? -ne 0 ]; then
  echo "Error reseting head"
  exit 1
fi

# Execute chef solor for the nodes assigned runtime role
cd $dir && /usr/bin/chef-solo -c config/solo.rb -j nodes/runtime/$role.json
if [ $? -ne 0 ]; then
  exit 1
fi

cd $OLDPWD

exit 0