AWS CodeBuild Deployment via ECS/ECR

buildspec.yml

version: 0.2

phases:
  pre_build:
    commands:
      - aws --version
      - echo Logging in to Amazon ECR...
      - $(aws ecr get-login --no-include-email --region $AWS_DEFAULT_REGION)
  build:
    commands:
      - echo Build started on `date`
      - echo Building the Docker image...
      - if [ -z "$IMAGE_TAG" ]; then IMAGE_TAG=latest; fi
      - if [ -n "$CODEBUILD_RESOLVED_SOURCE_VERSION" ]; then IMAGE_TAG="$(echo $CODEBUILD_RESOLVED_SOURCE_VERSION | head -c 8)"; fi
      - echo Using image tag "$IMAGE_TAG"
      - IMAGE_URI="$AWS_ACCOUNT_ID.dkr.ecr.$AWS_DEFAULT_REGION.amazonaws.com/$IMAGE_REPO_NAME"
      - echo Building image...
      - docker build -t $IMAGE_URI:latest .
      - echo Tagging image with tag "$IMAGE_TAG"...
      - docker tag $IMAGE_URI:latest $IMAGE_URI:$IMAGE_TAG
  post_build:
    commands:
      - echo Build completed on `date`
      - echo Pushing the Docker image to uri "$IMAGE_URI"...
      - docker push $IMAGE_URI:latest
      - docker push $IMAGE_URI:$IMAGE_TAG
      - echo Writing image definitions file...
      - printf '[{"name":"%s","imageUri":"%s"}]' "$IMAGE_REPO_NAME" "$IMAGE_URI:$IMAGE_TAG" > images.json
artifacts:
  files:
    - images.json