Adding workflow

.github/workflows/docker-build.yml

@@ -0,0 +1,24 @@
+name: Docker Build
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Build Docker image
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          push: false
+          tags: expertiza-backend:latest

.github/workflows/ruby-ci.yml

@@ -0,0 +1,40 @@
+name: Ruby CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    services:
+      mysql:
+        image: mysql:8.0
+        env:
+          MYSQL_ROOT_PASSWORD: expertiza
+          MYSQL_DATABASE: expertiza_test
+        ports:
+          - 3306:3306
+        options: --health-cmd="mysqladmin ping" --health-interval=10s --health-timeout=5s --health-retries=3
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: 3.2.1
+          bundler-cache: true
+
+      - name: Install dependencies
+        run: bundle install
+
+      - name: Set up database
+        run: |
+          bundle exec rails db:create
+          bundle exec rails db:schema:load
+          
+      - name: Run tests
+        run: bundle exec rspec