Original Post: Deploying an Application to the Cloud | by Dennis Kalaygian | Introduction to Web Application Development | Sep, 2024
This guide provides detailed instructions for configuring logging, DNS, and deploying an application to AWS using Docker and AWS CLI. Key steps include:
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Configure Application Logging: Create log groups for each application with a one-month retention setting and configure them in the format
/ecs/env-app-name. -
Configure Application Log Archiving: Set up an S3 bucket to store logs and create policies to allow CloudWatch to put logs in these buckets. Create a Lambda function to move logs from CloudWatch to S3, triggered nightly by an EventBridge schedule.
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Configure DNS: Establish a target group for the application, request a TLS certificate from AWS Certificate Manager with domain validation via Route 53, and set up a load balancer with necessary listeners and rules to map domains to target groups. Configure Route 53 with alias records pointing to the load balancer.
- Deploy the Application to AWS:
- Authenticate and push Docker images to AWS Elastic Container Registry (ECR).
- Ensure an ECS task execution role exists, creating one if necessary, and attach the required policies.
- Register a task definition for the application.
- Create an ECS cluster and launch the service with the appropriate configurations, including compute option, network, and load balancer setups.
The provided code snippets and commands throughout the guide illustrate how to achieve these configurations step-by-step.
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