Run Behat tests on Github Actions workflow

.github/workflows/stepup-behat.yml

@@ -0,0 +1,37 @@
+name: stepup-behat
+on:
+  pull_request:
+  push:
+    branches: [ main, feature/*, bugfix/* ]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v1
+      - name: Get Composer Cache Directory
+        id: composer-cache
+        run: echo "::set-output name=dir::$(composer config cache-files-dir)"
+      - uses: actions/cache@v2
+        with:
+          path: ${{ steps.composer-cache.outputs.dir }}
+          key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
+          restore-keys: ${{ runner.os }}-composer-
+      - name: Init environment
+        run: |
+          cd stepup
+          cp .env.test .env
+          cp gateway/surfnet_yubikey.yaml.dist gateway/surfnet_yubikey.yaml
+          docker compose -f docker-compose.yml -f docker-compose-behat.yml up -d
+      - name: Install composer dependencies on the Behat container
+        run: |
+          cd stepup
+          docker-compose exec -T behat bash -lc "composer install --ignore-platform-reqs -n"
+      - name: Run Behat tests
+        run: |
+          cd stepup
+          docker-compose exec -T behat bash -lc "./behat"
+      - name: Output logs on failure
+        if: failure()
+        run: docker compose logs