buildspec_docker.yml

version: 0.2

env:
  variables:
    IMAGE_TAG: "latest"  # Default value for the tag. Can be overridden.
  exported-variables:
    - IMAGE_DIGEST
    - IMAGE_IDENTIFIER

phases:
  install:
    commands:
      - npm install

  pre_build:
    commands:
      - echo "Extracting AWS Account ID from CODEBUILD_BUILD_ARN..."
      - export ACCOUNT_ID=$(echo $CODEBUILD_BUILD_ARN | cut -f5 -d ':')
      - export repository_name="hotel-app"  # Set your repository name here
      - echo "Logging into Amazon ECR..."
      - aws ecr get-login-password --region $AWS_REGION | docker login --username AWS --password-stdin $ACCOUNT_ID.dkr.ecr.$AWS_REGION.amazonaws.com

  build:
    commands:
      - echo "Building the Docker image..."
      - docker build -t $repository_name:$IMAGE_TAG .
      - echo "Tagging the Docker image for ECR..."
      - docker tag $repository_name:$IMAGE_TAG $ACCOUNT_ID.dkr.ecr.$AWS_REGION.amazonaws.com/$repository_name:$IMAGE_TAG
      - echo "Pushing the Docker image to ECR..."
      - docker push $ACCOUNT_ID.dkr.ecr.$AWS_REGION.amazonaws.com/$repository_name:$IMAGE_TAG

  post_build:
    commands:
      - echo "Retrieving the image digest from ECR..."
      - IMAGE_DIGEST=$(aws ecr describe-images --repository-name $repository_name --image-ids imageTag=$IMAGE_TAG --query 'imageDetails[0].imageDigest' --output text)
      - IMAGE_IDENTIFIER="${ACCOUNT_ID}.dkr.ecr.${AWS_REGION}.amazonaws.com/${repository_name}@${IMAGE_DIGEST}"