build-latest-docker-image.yaml

name: Build and push latest docker image

on:
  push:
    branches:
      - main
  workflow_dispatch:
jobs:
  build-and-push-latest-docker-image:
    strategy:
      matrix:
        os:
          - ubuntu-20.04
    runs-on: ${{ matrix.os }}
    permissions:
      id-token: write
      contents: read
    env:
      REPOSITORY: axelarscan-api
      IMAGE_TAG: ${{ github.sha }}
    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - name: fetch tags
        run: |
          git fetch --unshallow

      - name: Configure AWS credentials
        uses: aws-actions/configure-aws-credentials@v1
        with:
          aws-region: us-east-2
          role-to-assume: arn:aws:iam::${{ secrets.AWS_ACCOUNT_ID }}:role/ghwf-${{ github.event.repository.name }}

      - name: Login to Amazon ECR
        id: login-ecr
        uses: aws-actions/amazon-ecr-login@v2

      - name: check if an image already build on same commit hash
        id: image-tag-check
        run: |
          app_version="v$(jq -r .version package.json)"
          if [ ${{ github.ref }} != 'refs/heads/main' ]; then
            app_version="${app_version}-dev_${GITHUB_RUN_NUMBER}.${GITHUB_RUN_ATTEMPT}"
          fi
          image_tag_exists=$(aws ecr batch-get-image --repository-name ${REPOSITORY} --image-ids "imageTag=${app_version}" | jq '.images | length')
          echo "image_tag_exists=${image_tag_exists}" >> $GITHUB_OUTPUT
          echo "IMAGE_TAG=${app_version}" >> $GITHUB_ENV

      - name: Build docker image
        if: steps.image-tag-check.outputs.image_tag_exists == 0
        run: |
          docker build --platform linux/amd64 -t axelarscan/axelarscan-api .

      - name: Push to ECR
        if: steps.image-tag-check.outputs.image_tag_exists == 0
        env:
          ECR_REGISTRY: ${{ steps.login-ecr.outputs.registry }}
        run: |
          docker image tag axelarscan/axelarscan-api "${ECR_REGISTRY}/${REPOSITORY}:${IMAGE_TAG}"
          docker push "${ECR_REGISTRY}/${REPOSITORY}:${IMAGE_TAG}"