DevOps

Integrating Docker with AWS ECR: Build, Tag, and Push Images

Step 1: Authenticate Docker to ECR

Get login command:

aws ecr get-login-password --region us-west-2 | docker login --username AWS --password-stdin <account-id>.dkr.ecr.us-west-2.amazonaws.com

Step 2: Build and Tag the Image

In my-app dir:

docker build -t my-app .
docker tag my-app:latest 
<account-id>.dkr.ecr.us-west-2.amazonaws.com/my-app-repo:latest

Step 3: Push to ECR

docker push <account-id>.dkr.ecr.us-west-2.amazonaws.com/my-app-repo:latest

Verify in ECR console.

Troubleshooting: Check IAM permissions (AmazonEC2ContainerRegistryFullAccess).

Automation Tip

Use a script:

#!/bin/bash
REPO_URI=<account-id>.dkr.ecr.us-west-2.amazonaws.com/my-app-repo
docker build -t my-app .
docker tag my-app:latest $REPO_URI:latest
aws ecr get-login-password | docker login --username AWS --password-stdin $REPO_URI
docker push $REPO_URI:latest

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