Logging into Elastic Container Registry
aws ecr get-login-password --region region | docker login --username AWS --password-stdin aws_account_id.dkr.ecr.region.amazonaws.com
aws ecr get-login-password --region $(aws configure get region) | docker login --username AWS --password-stdin "$(aws sts get-caller-identity|jq -r '.Account').dkr.ecr.$(aws configure get region).amazonaws.com"