apptainer-image.yml

name: Singularity Build
on:
  push:
    # Edit the branches here if you want to change deploy behavior
    branches:
      - main
      - master
    tags:
      - release-*

jobs:
  build-and-push-image:
    runs-on: ubuntu-latest
    name: Build Apptainer image
    permissions:
        contents: read
        packages: write
    steps:
      - name: Install Apptainer
        run: deb=$(curl -w "%{filename_effective}" -LO https://github.com/apptainer/apptainer/releases/download/v1.2.4/apptainer_1.2.4_amd64.deb) && sudo apt install -y "./$deb"; rm -f "$deb"; unset deb
      - name: Check out code for the container build
        uses: actions/checkout@v4
      - name: Build Container
        run: |
          apptainer build container.sif Singularity
          tag=$(echo "${recipe/Singularity\./}")
          [ "$tag" == "Singularity" ] && tag=latest
          # Build the container and name by tag
          echo "Tag is $tag."
          echo "tag=$tag" >> $GITHUB_ENV
      - name: Login and Deploy Container
        run: |
          apptainer remote login -u ${{ github.actor }} -p ${{ secrets.GITHUB_TOKEN }} oras://ghcr.io
          apptainer push container.sif oras://ghcr.io/${{ github.repository }}:${tag}