build.yaml

name: Build and push docker image to ghcr

on:
  workflow_dispatch:
  push:
    branches:
      - 'main'
    tags:
      - 'v*'

jobs:
  build-and-push-image:
    concurrency:
      group: ${{ github.workflow }}-${{ github.job }}-${{ github.head_ref || github.run_id }}
      cancel-in-progress: true
    runs-on: a100-runner
    permissions:
      contents: write
      packages: write
      # This is used to complete the identity challenge
      # with sigstore/fulcio when running outside of PRs.
      id-token: write
      security-events: write

    steps:
      - name: Checkout repository
        uses: actions/checkout@v3
        with:
          submodules: recursive

      - name: Free Disk Space (Ubuntu)
        uses: jlumbroso/free-disk-space@main
        with:
          tool-cache: false
          android: true
          dotnet: true
          haskell: true
          large-packages: false
          swap-storage: true

      - name: Install soci
        uses: lerentis/soci-installer@v1.0.1
        with:
          soci-release: 'v0.4.0'
      
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2.10.0

      - name: Set up containerd for ubuntu
        uses: crazy-max/ghaction-setup-containerd@v2.2.0
        with:
          config-inline: |
            version = 2
            
            # persistent data location
            root = "/runner/build/containerd"

      - name: Docker meta
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: |
            ghcr.io/predibase/lorax
          tags: |
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=sha,prefix=,suffix=,format=short
            type=raw,value=latest
      
      - name: Create a hash from tags
        env:
          tags: ${{ steps.meta.outputs.tags }}
        id: vars
        run: |
          tag_hash=$(echo -n "$tags" | md5sum | awk '{print $1}')
          echo "tag_hash=$tag_hash" >> $GITHUB_OUTPUT
          echo "cache_dir=/runner/build/images/cache" >> $GITHUB_OUTPUT
          echo "image_dir=/runner/build/images" >> $GITHUB_OUTPUT
          echo "image_path=/runner/build/images/lorax" >> $GITHUB_OUTPUT

      - name: Create and update image/cache directory
        env:
          image_dir: ${{ steps.vars.outputs.image_dir }}
          cache_dir: ${{ steps.vars.outputs.cache_dir }}
        run: |
          sudo mkdir -p $image_dir
          sudo chown ubuntu:ubuntu $image_dir

          sudo mkdir -p $cache_dir
          sudo chown ubuntu:ubuntu $cache_dir

      - name: Export Docker image as OCI
        uses: docker/build-push-action@v5
        with:
          context: .
          file: ./Dockerfile  # Path to your Dockerfile
          push: false
          tags: ${{ steps.meta.outputs.tags }}
          outputs: type=oci,compression=gzip,dest=${{ steps.vars.outputs.image_path }}-${{ steps.vars.outputs.tag_hash }}.tar.gz
          cache-from: type=local,src=${{ steps.vars.outputs.cache_dir }}
          cache-to: type=local,mode=max,image-manifest=true,oci-mediatypes=true,dest=${{ steps.vars.outputs.cache_dir }}

      - name: Import image in containerd
        env:
          tag_hash: ${{ steps.vars.outputs.tag_hash }}
          image_path: ${{ steps.vars.outputs.image_path }}
        run: |
          echo "Importing $image_path-$tag_hash to Containerd"
          sudo ctr i import --no-unpack --all-platforms --digests $image_path-$tag_hash.tar.gz

      - name: Log in to GitHub Container Registry
        uses: docker/login-action@v1
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GHCR_PAT }}

      - name: Push image with containerd
        env:
          tags: ${{ steps.meta.outputs.tags }}
        run: |
          for tag in $tags
          do
            echo "Pushing $tag to GHCR"
            sudo ctr i push --user "${{ github.repository_owner }}:${{ secrets.GHCR_PAT }}" $tag
          done
      
      - name: Create and push soci index
        env:
          tags: ${{ steps.meta.outputs.tags }}
        run: |
          export SOCI_PATH=$HOME/.soci/soci
          for tag in $tags
          do
            echo "Creating soci index for $tag"
            sudo $SOCI_PATH create $tag
            echo "Pushing soci index for $tag"
            sudo $SOCI_PATH push --user ${{ github.repository_owner }}:${{ secrets.GHCR_PAT }} $tag
          done

      - name: Prune older images
        env:
          tag_hash: ${{ steps.vars.outputs.tag_hash }}
          image_path: ${{ steps.vars.outputs.image_path }}
        run: |
          # Delete images older than a day from docker store
          docker image prune -a -f --filter "until=24h"

          # Delete the on disk copy
          rm -rf "$image_path-$tag_hash.tar.gz"

          # Delete the SHA image(s) from containerd store
          sudo ctr i rm $(sudo ctr i ls -q)