added dockerfile and dockerignore

.dockerignore

@@ -0,0 +1,2 @@
+node_modules
+build

Dockerfile

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+# Use the official Node.js image as the base image
+FROM node:16-alpine
+
+# Set the working directory inside the container
+WORKDIR /app
+
+# Copy the package.json and package-lock.json files
+COPY package*.json ./
+
+# Install dependencies
+RUN npm install
+
+# Copy the rest of the application code
+COPY . .
+
+# Build the React application
+RUN npm run build
+
+# Install a simple HTTP server to serve the React application
+RUN npm install -g serve
+
+# Expose the port the app runs on
+EXPOSE 3000
+
+# Command to run the application
+CMD ["serve", "-s", "build"]