deploy.sh

#!/bin/bash

# Currency Analysis App Deployment Script
# This script builds and pushes the Docker image to ECR, then updates the ECS service

set -e

# Configuration
AWS_REGION=${AWS_REGION:-us-east-1}
STACK_NAME=${STACK_NAME:-currency-analysis}
ECR_REPOSITORY_NAME="currency-analysis"
IMAGE_TAG=${IMAGE_TAG:-latest}

# Colors for output
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m' # No Color

echo_info() {
    echo -e "${GREEN}[INFO]${NC} $1"
}

echo_warn() {
    echo -e "${YELLOW}[WARN]${NC} $1"
}

echo_error() {
    echo -e "${RED}[ERROR]${NC} $1"
}

# Check if AWS CLI is installed
if ! command -v aws &> /dev/null; then
    echo_error "AWS CLI is not installed. Please install it first."
    exit 1
fi

# Check if Docker is running
if ! docker info &> /dev/null; then
    echo_error "Docker is not running. Please start Docker first."
    exit 1
fi

# Get AWS account ID
AWS_ACCOUNT_ID=$(aws sts get-caller-identity --query Account --output text)
if [ $? -ne 0 ]; then
    echo_error "Failed to get AWS account ID. Please check your AWS credentials."
    exit 1
fi

ECR_URI="${AWS_ACCOUNT_ID}.dkr.ecr.${AWS_REGION}.amazonaws.com/${ECR_REPOSITORY_NAME}"

echo_info "Starting deployment process..."
echo_info "AWS Account ID: ${AWS_ACCOUNT_ID}"
echo_info "AWS Region: ${AWS_REGION}"
echo_info "ECR Repository: ${ECR_URI}"

# Login to ECR
echo_info "Logging into ECR..."
aws ecr get-login-password --region ${AWS_REGION} | docker login --username AWS --password-stdin ${ECR_URI}

# Build Docker image
echo_info "Building Docker image..."
docker build -t ${ECR_REPOSITORY_NAME}:${IMAGE_TAG} .

# Tag image for ECR
echo_info "Tagging image for ECR..."
docker tag ${ECR_REPOSITORY_NAME}:${IMAGE_TAG} ${ECR_URI}:${IMAGE_TAG}

# Push image to ECR
echo_info "Pushing image to ECR..."
docker push ${ECR_URI}:${IMAGE_TAG}

# Update ECS service to use new image
echo_info "Updating ECS service..."
CLUSTER_NAME=$(aws cloudformation describe-stacks --stack-name ${STACK_NAME} --query 'Stacks[0].Outputs[?OutputKey==`ECSClusterName`].OutputValue' --output text)

if [ -n "$CLUSTER_NAME" ]; then
    aws ecs update-service --cluster ${CLUSTER_NAME} --service currency-analysis-service --force-new-deployment
    echo_info "ECS service update initiated. New deployment in progress..."
else
    echo_warn "Could not find ECS cluster name. Please manually update the ECS service."
fi

echo_info "Deployment completed successfully!"
echo_info "Your application should be available at the load balancer URL from the CloudFormation outputs."