workflow setup complete

.github/workflows/docker-build-and-push.yml

@@ -0,0 +1,40 @@
+name: Build and Push Docker Image
+
+on:
+  push:
+    branches:
+      - main
+  # Schedule for automatic builds:
+  # schedule:
+      - cron: '0 0 * * *' # Every day at midnight UTC
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Cache Docker layers
+        uses: actions/cache@v3
+        with:
+          path: |
+            /tmp/.buildx-cache
+            /tmp/.buildkit
+          key: ${{ runner.os }}-buildx-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-buildx-
+
+      - name: Build Docker image
+        run: |
+          docker buildx build --push --tag hanisntsolo/codeforces-lamp:latest .
+
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKER_HUB_USERNAME }}
+          password: ${{ secrets.DOCKER_HUB_PASSWORD }}