gistfile1.sh

function setBackground() {
  osascript -e "tell application \"iTerm\"
    tell current terminal
      tell current session
        set background color to $1
      end tell
    end tell
  end tell"
}

function ec2ssh() {
	INSTANCE="$1"
	shift
	if [[ -z "$INSTANCE" ]]
	then
		echo 'use: ec2ssh $INSTANCE' >&2
		return 2
	fi
	
	DESCRIBE=$(ec2-describe-instances "$INSTANCE")
	ADDRESS=$(echo "$DESCRIBE" | awk '$1 ~ /^INSTANCE$/ { print $4; }')
	ADDRESS="${ADDRESS% *}"
	
	if [[ -n "$ADDRESS" ]]
	then
		if echo "$DESCRIBE" | awk '$1 ~ /^TAG$/ && $4 ~ /groupName$/ { print $5; }' | grep production &>/dev/null
		then
			setBackground "{15000,0,0}"
		else
			setBackground "{0,0,15000}"
		fi
		ssh "$ADDRESS" $@
		setBackground "{0,0,0}"
	else
		return 1
	fi
}

function ec2log() {
	INSTANCE="$1"
	if [[ -z "$INSTANCE" ]]
	then
		echo "Use: $0 instance [logfile]" >&2
		return 1
	fi

	LOGFILE="${2:-/var/log/bootstrap.log}"
	ec2ssh "$INSTANCE" "tail -f '$LOGFILE'"
}