Dockerfile

# Build stage
FROM node:20-alpine AS builder

WORKDIR /app

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

# Install dependencies
RUN yarn install --frozen-lockfile

# Copy source files
COPY . .

# Build the Docusaurus site
RUN yarn build

# Production stage
FROM node:20-alpine

WORKDIR /app

# Install serve globally for serving static files
RUN npm install -g serve

# Copy built static files from builder
COPY --from=builder /app/build ./build

# Copy entrypoint script
COPY docker-entrypoint.sh /usr/local/bin/
RUN chmod +x /usr/local/bin/docker-entrypoint.sh

# Create non-root user
RUN addgroup -g 1001 -S nodejs && \
    adduser -S nodejs -u 1001 && \
    chown -R nodejs:nodejs /app

USER nodejs

# Cloud Run sets PORT environment variable
ENV PORT=8080

EXPOSE 8080

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
  CMD wget --quiet --tries=1 --spider http://localhost:${PORT}/ || exit 1

ENTRYPOINT ["docker-entrypoint.sh"]

# Start serve on the PORT environment variable
CMD ["sh", "-c", "serve -s build -l ${PORT}"]