chore(ci): implementing Dockerfile and Github actions workflow

.github/workflows/Docker Image Build & Push To Registery.yaml

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+name: Docker Image Build & Push To Registery
+
+on:
+  push:
+    branches:
+      - main  
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Login to Docker registry
+        run: echo "${{ secrets.DOCKER_PASSWORD }}" | docker login -u "${{ secrets.DOCKER_USERNAME }}" --password-stdin ${{ secrets.DOCKER_REGISTRY }}
+
+      - name: Set image tag
+        id: tag
+        run: echo ::set-output name=TAG::${GITHUB_REF#refs/heads/}
+
+      - name: Build and push Docker image
+        run: |
+          docker build -t ${{ secrets.DOCKER_REGISTRY }}/coworking-space-api:${{ steps.tag.outputs.TAG }} .
+          docker push ${{ secrets.DOCKER_REGISTRY }}/coworking-space-api:${{ steps.tag.outputs.TAG }}

Dockerfile

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+# Dependency installation stage
+FROM node:20-alpine AS dependencies
+
+WORKDIR /usr/src/app
+
+# Copy package.json and package-lock.json to the working directory
+COPY package*.json ./
+
+# Install dependencies
+RUN npm install
+
+# Production stage
+FROM node:20-alpine AS production
+
+WORKDIR /usr/src/app
+
+# Copy only production dependencies from the dependencies stage
+COPY --from=dependencies /usr/src/app/node_modules ./node_modules
+
+# Copy the rest of the application code
+COPY . .
+
+# Expose the port the app runs on
+EXPOSE 3000
+
+# Command to run the application
+CMD ["node", "index.js"]