33 lines
954 B
Docker
33 lines
954 B
Docker
# ---- Build stage ----
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FROM node:22-alpine AS build
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WORKDIR /app
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# Safety valve for the 2 GB host: without a cap a runaway build can exhaust the
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# server's RAM and take down neighbouring containers. Measured peak for this app
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# is ~550 MB, so 1 GB leaves headroom while still failing the build rather than
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# the server. Raise this only if the host gets more RAM.
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ENV NODE_OPTIONS=--max-old-space-size=1024
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# Install deps from the lockfile first so this layer is reused when only src changes
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COPY package.json package-lock.json ./
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RUN npm ci --no-audit --no-fund
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COPY . .
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RUN npm run build
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# ---- Runtime stage ----
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FROM nginx:alpine
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# Remove Nginx's default "Welcome" page files completely
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RUN rm -rf /usr/share/nginx/html/*
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# Only the compiled assets reach the final image — no node_modules, no source
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COPY --from=build /app/dist /usr/share/nginx/html
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COPY nginx.conf /etc/nginx/nginx.conf
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EXPOSE 80 3000
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CMD ["nginx", "-g", "daemon off;"]
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