action.yaml

name: Build, tag, and push image to Amazon ECR
description: Build and tag a Docker image and push it to Amazon ECR
inputs:
  role-to-assume:
    description: The ARN of the role to assume
    required: true
runs:
  using: composite
  steps:
    - name: Check out repository
      uses: actions/checkout@v2
      with:
        fetch-depth: 1
    - name: Configure AWS credentials
      uses: aws-actions/configure-aws-credentials@v2
      with:
        aws-region: eu-west-1
        role-to-assume: ${{ inputs.role-to-assume }}
        role-skip-session-tagging: true
        role-duration-seconds: 3600
    - name: Login to Amazon ECR
      id: login-ecr
      uses: aws-actions/amazon-ecr-login@v1
    - name: Create Amazon ECR repository if not exists
      env:
        ECR_REPOSITORY: ${{ github.event.repository.name }}
      shell: bash
      run: |
        aws ecr describe-repositories --repository-names ${ECR_REPOSITORY,,} || aws ecr create-repository --repository-name ${ECR_REPOSITORY,,}
    - name: Prepare image tag
      id: prepare-image-tag
      shell: bash
      run: |
        IMAGE_TAG=latest
        if [[ $GITHUB_REF == refs/tags/* ]]; then
          IMAGE_TAG=${GITHUB_REF#refs/tags/}
        elif [[ $GITHUB_REF == refs/heads/* ]]; then
          IMAGE_TAG=$(echo ${GITHUB_REF#refs/heads/} | sed -r 's#/+#-#g')
        elif [[ $GITHUB_REF == refs/pull/* ]]; then
          IMAGE_TAG=pr-${{ github.event.number }}
        elif [ "${{ github.event_name }}" = "push" ]; then
          IMAGE_TAG="sha-${GITHUB_SHA::7}"
        fi
        echo "image-tag=${IMAGE_TAG}" >> $GITHUB_OUTPUT
    - name: Build, tag, and push image to Amazon ECR
      env:
        ECR_REGISTRY: ${{ steps.login-ecr.outputs.registry }}
        ECR_REPOSITORY: ${{ github.event.repository.name }}
        IMAGE_TAG: ${{ steps.prepare-image-tag.outputs.image-tag }}
      shell: bash
      run: |
        docker build . -t $ECR_REGISTRY/${ECR_REPOSITORY,,}:$IMAGE_TAG --build-arg DE_ECR=$ECR_REGISTRY
        docker push $ECR_REGISTRY/${ECR_REPOSITORY,,}:$IMAGE_TAG