grep-delete-env.sh

#!/bin/bash

NO_ARGS=0
E_OPTERROR=85

if [ $# -eq "$NO_ARGS" ]
then
    echo "Usage: `basename $0` -E <environment> <pattern>"
    exit $E_OPTERROR

fi

while getopts "E:R:" Option
do
    case $Option in
	E    ) ENV=$OPTARG;;
        R    ) REGION=$OPTARG;;
        *    ) echo "Unknown option chosen.";;
    esac
done

shift $(($OPTIND -2))

PATTERN=$1
KNIFECFG=".chef/knife-$ENV.rb"



if [ -z "$REGION" ]
then
    SERVERS=`knife ec2 server list -c $KNIFECFG | grep -v "terminated" | grep ${PATTERN} | cut -d " " -f 1`
else
    SERVERS=`knife ec2 server list -c $KNIFECFG --region $REGION | grep -v "terminated" | grep ${PATTERN} | cut -d " " -f 1`
fi
    

for server in ${SERVERS}
do
    knife ec2 server delete ${server} -y -c $KNIFECFG
    knife node delete ${server} -y -c $KNIFECFG
done 

exit $?