Dockerfile I used for some production react applications. Had some issues but it works fine and is quick plug and play solution.

Dockerfile

# Use Node.js 18 as the base image
FROM node:18-alpine AS build

# Set working directory
WORKDIR /app

# Install Yarn
RUN apk add --no-cache yarn

# Copy package.json and yarn.lock
COPY package.json yarn.lock ./

# Install dependencies
RUN yarn install --frozen-lockfile

# Copy all files
COPY . .

# Build the app
RUN yarn build

# Create a lightweight production image
FROM alpine:3.14

# Install Node.js and Yarn
RUN apk add --no-cache nodejs yarn

# Install a simple HTTP server to serve static content
RUN yarn global add http-server

# Set working directory
WORKDIR /app

# Copy built assets from build stage
COPY --from=build /app/dist .

# Expose port 3000
EXPOSE 3000

# Start the HTTP server
CMD ["http-server", "-p", "3000", "-a", "0.0.0.0", "--proxy", "http://localhost:3000?"]