BlueGreen deployments in ECS

Hi USER

CodeDeploy is specifically designed to manage deployments with advanced features like:

• Blue/green deployments: Seamlessly shifting traffic between environments.
• Canary deployments: Gradually rolling out changes to a subset of users.
• Rollback capabilities: Quickly reverting to a previous version in case of issues.
• Deployment configurations: Customizing deployment behavior.

steps to integration Code Deploy and code Pipeline Hope it helps you:

1. Create a CodeDeploy application and deployment group: Configure the deployment group with the target ECS service, load balancer, and other necessary resources.
2. Create a CodePipeline pipeline: Include a deploy stage that utilizes the CodeDeploy action.
3. Configure deployment configuration: Specify the desired deployment type (blue/green, canary, etc.) and traffic routing settings.
4. Prepare deployment artifacts: Create an appspec.yml file to define deployment steps and hooks.

Let's consider a simple web application deployed on Amazon ECS.

CodePipeline:

• Source stage: Pulls code from a Git repository.
• Build stage: Builds the Docker image and pushes it to ECR.
• Deploy stage:
• Uses CodeDeploy action to deploy to a deployment group targeting the ECS service.
• Deployment configuration specifies blue-green deployment with 50% traffic initially routed to the new version.

CodeDeploy:

• Application: Represents the web application.
• Deployment group: Targets the ECS service, load balancer, and associated resources.
• Deployment configuration:
• Blue-green deployment type.
• Traffic routing: 50% to the new version initially, with gradual increase to 100% after successful validation.
• Appspec.yml:
• Defines lifecycle hooks for pre and post deployment actions (e.g., database migrations, configuration updates).