build_and_test_on_pr.yml

---
# Test the Docker image on every pull request.
#
# The steps are:
# 1. Build docker image using cached data.
# 2. Start the docker container with local folder mounted to it.
# 3. Check that postgresql and rabbitmq are running.
# 4. Copy id_rsa file from the docker container to local folder.
# 5. Restart the container and check that the id_rsa file didn't change.

name: build-and-test-image-from-pull-request

on: [pull_request]

jobs:

    build-and-test:

        runs-on: ubuntu-latest
        timeout-minutes: 45

        steps:
            - uses: actions/checkout@v2
            - name: Set up QEMU
              uses: docker/setup-qemu-action@v1
            - name: Set up Docker Buildx
              uses: docker/setup-buildx-action@v1
            - name: Cache Docker layers
              uses: actions/cache@v2
              with:
                  path: /tmp/.buildx-cache
                  key: ${{ runner.os }}-buildx-${{ github.sha }}
                  restore-keys: |
                      ${{ runner.os }}-buildx-
            - name: Build image locally
              uses: docker/build-push-action@v2
              with:
                  load: true
                  push: false
                  tags: aiidalab-docker-stack:latest
                  cache-from: type=local,src=/tmp/.buildx-cache
                  cache-to: type=local,dest=/tmp/.buildx-cache
            - name: Start and test the container
              id: test_run
              run: |
                  mkdir tmp
                  export DOCKERID=`docker run -v $PWD/tmp:/home/aiida -d aiidalab-docker-stack:latest`
                  echo "::set-output name=docker_id_first_run::${DOCKERID}"
                  docker exec --tty --user root $DOCKERID wait-for-services
                  docker exec --tty --user aiida $DOCKERID wait-for-services
                  docker exec --tty --user aiida $DOCKERID /bin/bash -l -c '/usr/lib/postgresql/10/bin/pg_ctl -D /home/$SYSTEM_USER/.postgresql status' # Check that postgres is up.
                  docker exec --tty --user root $DOCKERID /bin/bash -l -c 'service rabbitmq-server status' # Check that rabbitmq is up.
                  docker exec --tty --user aiida $DOCKERID /bin/bash -l -c 'conda create -y -n test_env python=3.8' # Check that one can create a new conda environment.
                  docker exec --tty --user aiida $DOCKERID /bin/bash -l -c 'conda activate test_env' # Check that new environment works.
                  sudo cp tmp/.ssh/id_rsa . # Copy id_rsa file from the mounted folder.
                  docker stop $DOCKERID # Stop the container.
                  export DOCKERID=`docker run -v $PWD/tmp:/home/aiida -d aiidalab-docker-stack:latest` # Start a new container using the same mounted folder.
                  echo "::set-output name=docker_id_second_run::${DOCKERID}"
                  docker exec --tty $DOCKERID wait-for-services
                  sudo diff id_rsa tmp/.ssh/id_rsa # Check that the id_rsa file wasn't modified.
            - name: Show the container log (first run).
              if: always()
              run: docker logs "${{ steps.test_run.outputs.docker_id_first_run }}"
            - name: Show the container log (second run).
              if: always()
              run: docker logs "${{ steps.test_run.outputs.docker_id_second_run }}"