deployment.sh

#!/bin/bash

if [ -z "$AWS_ACCESS_KEY_ID" -o -z "$AWS_SECRET_ACCESS_KEY" ]; then
	echo 'Please define AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY' >&2
	exit 127;
fi

if [ -z "$BUILDER_APP_ID" -o -z "$BUILDER_STACK_ID" ]; then
	echo 'Please define the application and stack for builder using BUILDER_APP_ID and BUILDER_STACK_ID' >&2
	exit 127;
fi


if ! type jq >/dev/null; then
	echo 'jq utility is required and can be downloaded from http://stedolan.github.com/jq' >&2
	exit 127;	
fi

set -euo pipefail

opsworks() {
	aws opsworks --region us-east-1 "$@"
}

deployment_status() {
	declare deployment=$1
	
	local status=$(opsworks describe-deployments --deployment-ids $deployment | jq -r .Deployments[0].Status)
	
}

create_deployment() {
	declare app_id=$1 stack_id=$2
	
	local payload=$(jq -n '.Name = "deploy"')
	
	opsworks create-deployment --app-id $app_id --stack-id $stack_id --command "$payload" \
		| jq -r .DeploymentId
}

main() {
	local deployment=$(create_deployment $BUILDER_APP_ID $BUILDER_STACK_ID)
	
	while sleep 10; do 
		case $(deployment_status $deployment) in
			"successful")
				break;
				;;
			"pending" | "running")
				;;
			"failed")
				echo "Build failed" >&2
				return 1;
				;;
			"*")
				echo "Error communicating with opsworks" >&2
				return 2
				;;
		esac
		
	done

	while read -r NAME APP_ID STACK_ID; do

		if [ -z "$APP_ID" -o -z "$STACK_ID" ]; then
			echo "Invalid application deployment: $1" >&2
			return 3;
		fi
		
		echo -n "Releasing $NAME: "
		create_deployment $APP_ID $STACK_ID
		echo
		
	done	
}


main "$@"