vite preview mode

Dockerfile

@@ -0,0 +1,28 @@
+# Use a lightweight Node.js image
+FROM node:20-alpine
+
+# Set the working directory inside the container
+WORKDIR /app
+
+# Copy package.json and lock files from the viewer directory first
+# to leverage Docker layer caching
+COPY viewer/package.json viewer/pnpm-lock.yaml* ./
+
+# Install pnpm globally
+RUN npm install -g pnpm
+
+# Install all dependencies (including devDependencies for Vite)
+RUN pnpm install --frozen-lockfile
+
+# Copy the rest of the application source code from the viewer directory
+COPY viewer/ ./
+
+# Build the application for production
+RUN pnpm build
+
+# Expose the port Vite preview will run on
+EXPOSE 3000
+
+# The command to run the app using Vite's preview server
+# --host 0.0.0.0 is crucial to make the server accessible from outside the container
+CMD ["pnpm", "exec", "vite", "preview", "--host", "0.0.0.0", "--port", "3000"]