AWS Code Build - Error When Using GitHub Actions - toomanyrequests: You have reached your pull rate limit

This error occurs when pulling Docker images from DockerHub when starting a new build in CodeBuild. It is due to a limit set by Dockerhub to restrict access for Docker public registries. For anonymous users, as in your situation, the limit is 100 pulls every 6 hours per IP address.

To address this concern, you can consider enabling Docker layer cache in CodeBuild. The steps are:

1. Open your codeBuild project in CodeBuild console and click on "Edit"
2. Under "Artifacts" section, expand "Additional configuration"
3. In "Cache type", choose "Local"
4. Select "Docker layer cache"
5. Apply the settings by selecting "Update project"

Another option is to authenticate to DockerHub. This will increase your rate limit to 200 pulls per 6 hour period as stated in DockerHub Download rate limit.

Workaround is to use ECR:

https://stackoverflow.com/questions/65806330/toomanyrequests-you-have-reached-your-pull-rate-limit-you-may-increase-the-lim

aws ecr-public get-login-password --region us-east-1 | docker login --username AWS --password-stdin public.ecr.aws

So you can use something like this: (some fields are empty)

 steps:

    - name: Check out code
      uses: actions/checkout@v2
    
    - name: Configure AWS credentials
      uses: aws-actions/configure-aws-credentials@v1
      with:
        aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
        aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
        aws-region: 

    - name: Login to Amazon ECR
      id: login-ecr
      uses: aws-actions/amazon-ecr-login@v1

    - name: Build, tag, and push image to Amazon ECR
      env:
        ECR_REGISTRY: 
        ECR_REPOSITORY: 
        IMAGE_TAG: 
      run: |
        docker build -t $ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG .
        docker push $ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG