[Solved] Which of the following is a valid way to authenticate Docker to AWS ECR? — Ans: Using AWS CLI to get a login password and piping it to Docker login | AWS

AWS - ECS and Fargate

Which of the following is a valid way to authenticate Docker to AWS ECR?

ALogging in with AWS IAM user password directly in Docker

BUsing AWS CLI to get a login password and piping it to Docker login

CUsing a username and password stored in environment variables

DUsing SSH keys directly with Docker login

Step-by-Step Solution

Solution:

Step 1: Identify AWS recommended authentication
AWS CLI provides a command to get a temporary password for Docker login to ECR.
Step 2: Eliminate incorrect methods
SSH keys and IAM user passwords are not used directly for Docker login to ECR. Environment variables with username/password are not standard.
Final Answer:
Using AWS CLI to get a login password and piping it to Docker login -> Option B
Quick Check:
Docker ECR auth = AWS CLI login command [OK]

Quick Trick: Use AWS CLI get-login-password for Docker auth [OK]

Common Mistakes:

Master "ECS and Fargate" in AWS

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Which of the following is a valid way to authenticate Docker to AWS ECR?