Use Github actions to push tags to AWS ECR

aws-tag.yaml

name: Deploy tag and push to ECR

on:
  push:
    tags:
      - "v*"
env:
  AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
  AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
  AWS_REGION: eu-west-1                        # set this to your preferred AWS region, e.g. us-west-1
  ECR_REPOSITORY: my-repo                      # set this to your Amazon ECR repository name

jobs:
  deploy:
    name: Deploy
    runs-on: ubuntu-latest
    environment: production

    steps:
    - name: Checkout
      uses: actions/checkout@v2

    - name: Configure AWS credentials
      uses: aws-actions/configure-aws-credentials@v1
      with:
        aws-access-key-id: ${{ env.AWS_ACCESS_KEY_ID }}
        aws-secret-access-key: ${{ env.AWS_SECRET_ACCESS_KEY }}
        aws-region: ${{ env.AWS_REGION }}

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

    - name: Get the version
      id: get_version
      run: echo ::set-output name=VERSION::$(echo $GITHUB_REF | cut -d / -f 3)

    - name: Get build number
      id: build_number
      run: echo ::set-output name=NUMBER::$( echo $GITHUB_RUN_NUMBER )

    - name: Build, tag, and push image to Amazon ECR
      id: build-image
      env:
        ECR_REGISTRY: ${{ steps.login-ecr.outputs.registry }}
        IMAGE_TAG: ${{ steps.get_version.outputs.VERSION }}
      run: |
        docker build -t $ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG .
        docker push $ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG
        echo "::set-output name=image::$ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG"