FROM node:20-alpine

WORKDIR /app

# Installed as its own layer so it's only re-run when package.json actually changes.
COPY package.json ./
RUN npm install --no-audit --no-fund

# Copy the rest of the scaffolded Docusaurus project (config, src/, static/).
# The docs/ folder copied here is only a placeholder — docker-compose.yaml
# bind-mounts the real markdown content from ../docs over the top of it at
# container start, so editing docs never requires rebuilding this image.
COPY . .

EXPOSE 3000