validate-image-build.yml

on:
  pull_request:
    branches:
      - main

name: Build docker image

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: blockscout/chainscout

jobs:
  validate-build:
    name: Docker build
    timeout-minutes: 30
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Login to GitHub Container Registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata for Docker
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
      - name: Build
        uses: docker/build-push-action@v6
        with:
          context: "."
          file: "Dockerfile"
          push: false
          tags: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:main
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max