Dockerfile

FROM node:18-alpine AS build

# Set working directory
WORKDIR /app

# Copy the viewer directory with all its contents
COPY viewer/ .

# Install dependencies without frozen lockfile to allow migration from package-lock.json
RUN npm install

# Build the application with more verbose output
RUN npm run build || (echo "Build failed. Check the error messages above." && exit 1)

# Production stage
FROM nginx:alpine

# Copy built assets from build stage
COPY --from=build /app/dist /usr/share/nginx/html

# Expose port
EXPOSE 80

# Start nginx
CMD ["nginx", "-g", "daemon off;"]