build-container.yml

name: Singularity Build (manual)
on: 
  # Manually run workflow
  workflow_dispatch:
    inputs:
      tag:
        description: "Tag for the built container"
        required: true
        default: "dev"

  # Trigger on push  
  push:

    # This recipe shows how to manually define a matrix of singularity recipes (paths) to build
    # Edit the branches here if you want to change deploy behavior
    branches:
      - main
      - master

  # Trigger on PR
  pull_request: []

  # Trigger on published release
  release:
    types: [published]

jobs:
  build-test-containers:
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        recipe: ["Singularity"]

    name: Check ${{ matrix.recipe }}
    steps:

      - name: Check Out Code for the Container Build
        uses: actions/checkout@v2

      - name: Continue if Singularity Recipe Exists
        run: |
          if [[ -f "${{ matrix.recipe }}" ]]; then
            echo "keepgoing=true" >> $GITHUB_ENV
          fi          

      - name: Set up Go 1.13
        if: ${{ env.keepgoing == 'true' }}
        uses: actions/setup-go@v1
        with:
          go-version: 1.13
        id: go

      - name: Install Dependencies
        if: ${{ env.keepgoing == 'true' }}
        run: |
          sudo apt-get update && sudo apt-get install -y \
            build-essential \
            libssl-dev \
            uuid-dev \
            libgpgme11-dev \
            squashfs-tools \
            libseccomp-dev \
            pkg-config

      - name: Install Singularity
        if: ${{ env.keepgoing == 'true' }}
        env:
          SINGULARITY_VERSION: 3.8.1
          GOPATH: /tmp/go
      
        run: |
          mkdir -p $GOPATH
          sudo mkdir -p /usr/local/var/singularity/mnt && \
          mkdir -p $GOPATH/src/github.com/sylabs && \
          cd $GOPATH/src/github.com/sylabs && \
          wget -qO- https://github.com/sylabs/singularity/releases/download/v${SINGULARITY_VERSION}/singularity-ce-${SINGULARITY_VERSION}.tar.gz | \
          tar xzv && \
          cd singularity-ce-${SINGULARITY_VERSION} && \
          ./mconfig -p /usr/local && \
          make -C builddir && \
          sudo make -C builddir install     

      - name: Build Container
        if: ${{ env.keepgoing == 'true' }}
        env:
          recipe: ${{ matrix.recipe }}
        run: |
         ls 
         if [ -f "${{ matrix.recipe }}" ]; then
            sudo -E singularity build container.sif ${{ matrix.recipe }}
         else
           echo "${{ matrix.recipe }} is not found."
           echo "Present working directory: $PWD"
           ls
         fi

      - name: Generate Tag
        run: |
          # If triggered manually, use tag provided by user (or default)
          # If triggered by release, tag with release tag
          # if triggered otherwise, tag as dev
          if [[ "${{ github.event_name }}" == "workflow_dispatch" ]]; then
            tag=$${{ github.event.inputs.tag }}
          elif [[ "${{ github.event_name }}" == "release" ]]; then
            tag=${{ github.ref }}
            tag=${tag##*/}
          else 
            tag=dev
          fi

          # Name the tag
          echo "Tag is $tag."
          echo "tag=$tag" >> $GITHUB_ENV

      - name: Login and Deploy Container
        if: (github.event_name != 'pull_request')
        env:
          keepgoing: ${{ env.keepgoing }}
        run: |         
            if [[ "${keepgoing}" == "true" ]]; then
                echo ${{ secrets.GITHUB_TOKEN }} | singularity remote login -u ${{ secrets.GHCR_USERNAME }} --password-stdin oras://ghcr.io
                singularity push container.sif oras://ghcr.io/${GITHUB_REPOSITORY}:${{ env.tag }} 
            fi