{"id":157,"date":"2025-05-17T05:55:00","date_gmt":"2025-05-17T05:55:00","guid":{"rendered":"https:\/\/harshad-sonawane.com\/blog\/?p=157"},"modified":"2025-02-27T14:24:10","modified_gmt":"2025-02-27T14:24:10","slug":"deploying-spring-boot-applications-aws-ecs-vs-lambda","status":"publish","type":"post","link":"https:\/\/harshad-sonawane.com\/blog\/deploying-spring-boot-applications-aws-ecs-vs-lambda\/","title":{"rendered":"Deploying Spring Boot Applications on AWS: ECS vs. Lambda"},"content":{"rendered":"\n<p>Deploying a <strong>Spring Boot application<\/strong> on <a href=\"https:\/\/harshad-sonawane.com\/blog\/choosing-right-cloud-database-rds-dynamodb-aurora-documentdb\/\">AWS<\/a> requires choosing the right compute service that balances <strong>scalability, performance, and cost-efficiency<\/strong>. Two popular AWS options for running Spring Boot applications are <strong>AWS Elastic Container Service (ECS)<\/strong> and <strong>AWS Lambda<\/strong>. This guide explores their differences, best use cases, and how to deploy a Spring Boot application on both.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>1. Understanding ECS and Lambda<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>AWS Elastic Container Service (ECS)<\/strong><\/h3>\n\n\n\n<p>AWS ECS is a <strong>container orchestration service<\/strong> that allows you to deploy, manage, and scale containerized applications using <strong>Docker<\/strong>.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Supports <strong>custom environments<\/strong> with control over the OS, dependencies, and configurations.<\/li>\n\n\n\n<li>Can run on <strong>EC2<\/strong> (self-managed infrastructure) or <strong>Fargate<\/strong> (serverless compute).<\/li>\n\n\n\n<li>Ideal for <strong>long-running applications<\/strong> and <strong><a href=\"https:\/\/harshad-sonawane.com\/blog\/build-high-performance-java-apis-using-grpc\/\">microservices<\/a> architectures<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p><strong>Example Use Case:<\/strong> Deploying a <strong>Spring Boot REST API<\/strong> as a Docker container that handles high-traffic workloads.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>AWS Lambda (Serverless Compute)<\/strong><\/h3>\n\n\n\n<p>AWS Lambda allows running code <strong>without provisioning or managing servers<\/strong>. It executes code <strong>only when triggered<\/strong> and scales automatically.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>No infrastructure management, runs <strong>fully serverless<\/strong>.<\/li>\n\n\n\n<li><strong>Auto-scales<\/strong> based on incoming requests.<\/li>\n\n\n\n<li>Best suited for <strong>event-driven applications<\/strong> with <strong>short-lived execution<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p><strong>Example Use Case:<\/strong> A <strong>Spring Boot API<\/strong> that performs lightweight tasks such as processing form submissions or triggering database updates.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>2. Key Differences Between ECS and Lambda<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><th>Feature<\/th><th>AWS ECS<\/th><th>AWS Lambda<\/th><\/tr><tr><td><strong>Compute Model<\/strong><\/td><td>Container-based<\/td><td>Serverless, function-based<\/td><\/tr><tr><td><strong>Scalability<\/strong><\/td><td>Auto-scales with <strong>ECS Service Auto Scaling<\/strong><\/td><td>Auto-scales per request<\/td><\/tr><tr><td><strong>Pricing Model<\/strong><\/td><td>Pay for instance\/container usage<\/td><td>Pay per execution time<\/td><\/tr><tr><td><strong>Startup Time<\/strong><\/td><td>Always running or cold starts in Fargate<\/td><td>Cold starts (~100ms) for inactive functions<\/td><\/tr><tr><td><strong>Use Case<\/strong><\/td><td>Long-running apps, microservices<\/td><td>Event-driven tasks, API backends<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>3. Deploying a Spring Boot Application on AWS ECS<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 1: Containerizing the Spring Boot App<\/strong><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"Java\" class=\"language-Java\"># Dockerfile\nFROM openjdk:17-jdk-slim\nVOLUME \/tmp\nCOPY target\/myapp.jar app.jar\nENTRYPOINT [\"<a href=\"https:\/\/harshad-sonawane.com\/blog\/reduce-cloud-costs-java-applications\/\">java<\/a>\", \"-jar\", \"app.jar\"]<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 2: Push the Image to Amazon Elastic Container Registry (ECR)<\/strong><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"Java\" class=\"language-Java\">aws ecr create-repository --repository-name spring-boot-app\naws ecr get-login-password --region us-east-1 | docker login --username AWS --password-stdin &lt;your-ecr-url&gt;\ndocker build -t spring-boot-app .\ndocker tag spring-boot-app:latest &lt;your-ecr-url&gt;\/spring-boot-app:latest\ndocker push &lt;your-ecr-url&gt;\/spring-boot-app:latest<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 3: Deploying the Container on ECS (Fargate Mode)<\/strong><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"Java\" class=\"language-Java\">aws ecs create-cluster --cluster-name springboot-cluster\naws ecs create-task-definition --family springboot-task \\\n  --network-mode awsvpc --requires-compatibilities FARGATE \\\n  --cpu 512 --memory 1024 --container-definitions '[{\"name\":\"spring-boot-container\",\"image\":\"&lt;your-ecr-url&gt;\/spring-boot-app:latest\",\"portMappings\":[{\"containerPort\":8080,\"hostPort\":8080}]}]'<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 4: Running the Service<\/strong><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"Java\" class=\"language-Java\">aws ecs create-service --cluster springboot-cluster --service-name springboot-service \\\n  --task-definition springboot-task --desired-count 1 --launch-type FARGATE \\\n  --network-configuration 'awsvpcConfiguration={subnets=[subnet-abc123],securityGroups=[sg-xyz123],assignPublicIp=\"ENABLED\"}'<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>4. Deploying a Spring Boot Application on <a href=\"https:\/\/www.googleadservices.com\/pagead\/aclk?sa=L&amp;ai=DChcSEwij5P2XhOSLAxUpWUgAHUpPAs0YABAAGgJjZQ&amp;co=1&amp;ase=2&amp;gclid=CjwKCAiAt4C-BhBcEiwA8Kp0CTefxDU44Gntd8Pg8ix4PBd4-xUuoNuTitILWfpWh_xJN7Kl0g-m6hoC6okQAvD_BwE&amp;ei=fXLAZ56gEueb4-EPjPbcsQg&amp;ohost=www.google.com&amp;cid=CAESVuD2CHl7Qe-7MW8hXp01MCIcB8z5unzrRbtX1I-5VT1OZEF9LAEdIzRU8Xd8qM4CUvmBSnL60FdsEEhJztG7p3vcIyHJzZRZKc_NqRq03HHSynPU4uGq&amp;sig=AOD64_0ziDUfoAtL8N152jCaS7MQQglw7Q&amp;q&amp;sqi=2&amp;nis=4&amp;adurl&amp;ved=2ahUKEwje0uGXhOSLAxXnzTgGHQw7N4YQ0Qx6BAgUEAE\">AWS Lambda<\/a><\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 1: Convert Spring Boot to a Serverless Function<\/strong><\/h3>\n\n\n\n<p>Use <strong>AWS Lambda Adapter<\/strong> or <strong>Spring Cloud Function<\/strong> to run Spring Boot as a function.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"Java\" class=\"language-Java\">@SpringBootApplication\npublic class LambdaApplication implements RequestHandler&lt;Map&lt;String, Object&gt;, String&gt; {\n    @Override\n    public String handleRequest(Map&lt;String, Object&gt; input, Context context) {\n        return \"Hello from AWS Lambda!\";\n    }\n}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 2: Build and Package the Application<\/strong><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"Java\" class=\"language-Java\">mvn clean package\nzip -j target\/lambda.zip target\/myapp.jar<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 3: Deploy to AWS Lambda<\/strong><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"Java\" class=\"language-Java\">aws lambda create-function --function-name SpringBootLambda \\\n  --runtime java17 --role &lt;iam-role-arn&gt; \\\n  --handler LambdaApplication::handleRequest --zip-file fileb:\/\/target\/lambda.zip<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>5. Choosing Between ECS and Lambda for Spring Boot<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Use ECS When:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The application requires <strong>long-running processes<\/strong>.<\/li>\n\n\n\n<li>You need <strong>full control<\/strong> over networking, dependencies, and configuration.<\/li>\n\n\n\n<li>The application handles <strong>high traffic<\/strong> and needs <strong>persistent connections<\/strong>.<\/li>\n\n\n\n<li>You require integration with <strong>databases<\/strong> like RDS or DynamoDB.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Use Lambda When:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The application is <strong>event-driven<\/strong> (e.g., API Gateway, S3, DynamoDB events).<\/li>\n\n\n\n<li>You need <strong>auto-scaling without server management<\/strong>.<\/li>\n\n\n\n<li>The application has <strong>low execution time<\/strong> and doesn\u2019t require persistent state.<\/li>\n\n\n\n<li>You are optimizing for <strong>cost efficiency<\/strong> with a pay-per-execution model.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Conclusion<\/strong><\/h2>\n\n\n\n<p>AWS ECS and Lambda offer different deployment strategies for <strong>Spring Boot applications<\/strong>. <strong>ECS is ideal for long-running, scalable applications<\/strong>, while <strong>Lambda is best suited for lightweight, event-driven workloads<\/strong>. Choosing the right solution depends on the application\u2019s requirements, scalability needs, and cost considerations.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"o-typing-delay-100ms ticss-27f7e3e9\"><o-anim-typing>&lt;> <strong>&#8220;Happy developing, one line at a time!&#8221;<\/strong> &lt;\/><\/o-anim-typing><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Deploying a Spring Boot application on AWS requires choosing the right compute service that balances scalability, performance, and cost-efficiency. Two popular AWS options for running Spring Boot applications are AWS Elastic Container Service (ECS) and AWS Lambda. This guide explores their differences, best use cases, and how to deploy a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":159,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_themeisle_gutenberg_block_has_review":false,"footnotes":"","jetpack_publicize_message":"Should you use ECS for containers or Lambda for serverless execution? Learn the key differences, use cases, and step-by-step deployment strategies in my latest blog!\n\n#AWS #SpringBoot #ECS #Lambda #CloudComputing #DevOps\n\n\ud83d\udd17 Full blog here:","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false},"version":2}},"categories":[113],"tags":[135,143,146,136,145,147,148],"class_list":["post-157","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-java-spring-boot-aws-microservices","tag-aws-compute-services","tag-aws-ecs","tag-aws-fargate","tag-aws-lambda","tag-deploy-spring-boot-on-aws","tag-serverless-spring-boot","tag-spring-boot-ecs-deployment"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Deploying Spring Boot Applications on AWS: ECS vs. Lambda<\/title>\n<meta name=\"description\" content=\"Understand deploying Spring Boot applications on AWS using ECS and AWS Lambda. 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