Add github workflows

.github/workflows/docker-image.yml

@@ -0,0 +1,35 @@
+name: Docker Image CI
+
+on:
+  push:
+    branches: [ "main" ]
+
+jobs:
+  push_to_registry:
+    name: Push Docker image to Docker Hub
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out the repo
+        uses: actions/checkout@v4
+
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME  }}
+          password: ${{ secrets.DOCKERHUB_PASSWORD  }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ecss/web_sotonverify
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ./Dockerfile
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+

.github/workflows/nextjs-build.yml

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+name: Builds Nextjs site
+
+on:
+  pull_request:
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Use Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '18.x'
+
+      - run: npm ci
+
+      - name: Lint
+        run: npm run lint
+
+      - name: Copy environment variables
+        run: cp .env.example .env
+
+      - run: npm run build