buildspec.yml

version: 0.2
# based on the following AWS documentation:
# https://docs.aws.amazon.com/codebuild/latest/userguide/sample-docker.html
# https://docs.aws.amazon.com/AmazonECR/latest/userguide/docker-push-multi-architecture-image.html
# Verify the CodeBuild execution role can access ECR. 
# https://docs.aws.amazon.com/AmazonECR/latest/userguide/ecr_managed_policies.html
phases:
    install:
        commands:
            - yum update -y
    pre_build:
        commands:
            - echo Logging in to Amazon ECR...
            - $(aws ecr get-login --no-include-email --region $AWS_DEFAULT_REGION)
    build:
        commands:
            - echo Build started on `date`
            - echo Building the Docker image...          
            - docker build -t $IMAGE_REPO_NAME:$IMAGE_TAG --build-arg ARCH=$IMAGE_ARCH/ .
            - docker tag $IMAGE_REPO_NAME:$IMAGE_TAG $AWS_ACCOUNT_ID.dkr.ecr.$AWS_DEFAULT_REGION.amazonaws.com/$IMAGE_REPO_NAME:$IMAGE_TAG      
    post_build:
        commands:
            - echo Build completed on `date`
            - echo Pushing the Docker image...
            - docker push $AWS_ACCOUNT_ID.dkr.ecr.$AWS_DEFAULT_REGION.amazonaws.com/$IMAGE_REPO_NAME:$IMAGE_TAG