nagaraju9951 / deploy-ecr-to-ecs

Pushing a Docker Image to ECR and Deploying to ECS

This guide explains how to push a Docker image to Amazon Elastic Container Registry (ECR) and deploy it to an Amazon Elastic Container Service (ECS) cluster.

Prerequisites

Before you get started, you'll need the following:

• An AWS account
• The AWS CLI installed and configured
• Docker installed
• An ECS cluster set up with a task definition and a service. For more information, see Creating an Amazon ECS Cluster.

Pushing a Docker Image to ECR

1. Open the Amazon ECR console and create a new repository for your Docker image.
2. Build your Docker image using the docker build command. Be sure to tag your image with the ECR repository URI in the format <aws_account_id >.dkr.ecr..amazonaws.com/<repo_name>:.
3. Log in to the Amazon ECR registry by running the following command:

aws ecr get-login-password --region <region> | docker login --username AWS --password-stdin <aws_account_id>.dkr.ecr.<region>.amazonaws.com

4. Push your Docker image to the ECR repository by running the following command:

docker push <aws_account_id>.dkr.ecr.<region>.amazonaws.com/<repo_name>:<tag>

Deploying a Docker Image to ECS

1. Create a new revision of your task definition with the updated Docker image. You can do this using the Amazon ECS console or the AWS CLI.
2. Update the service to use the new task definition revision. You can do this using the Amazon ECS console or the AWS CLI.

Updating the Task Definition with the AWS CLI

To update the task definition with the AWS CLI, run the following command:

aws ecs register-task-definition --family <family> --container-definitions file://<path_to_container_definitions> --execution-role-arn <execution_role_arn>

Replace with the name of your task definition family, <path_to_container_definitions> with the path to a JSON file that defines your container definitions, and <execution_role_arn> with the ARN of the execution role that your task definition requires.

Updating the Service with the AWS CLI

To update the service with the AWS CLI, run the following command:

aws ecs update-service --service <service_name> --cluster <cluster_name> --task-definition <task_definition_arn>

Replace <service_name> with the name of your service, <cluster_name> with the name of your cluster, and <task_definition_arn> with the ARN of the updated task definition.

Conclusion

we learned how to push a Docker image to Amazon ECR and deploy it to Amazon ECS. This process involves building your Docker image, pushing it to the ECR repository, and updating your task definition and service to use the new image. With these steps, you can easily deploy your Docker applications to Amazon ECS.