Dockerfile

# Build stage
FROM node:lts-alpine AS base

RUN corepack enable && corepack prepare pnpm@10.33.2 --activate
ENV PNPM_HOME=/pnpm
ENV PATH="$PNPM_HOME:$PATH"

WORKDIR /app

# pnpm needs the whole repo
COPY . .

RUN --mount=type=cache,target=/pnpm/store pnpm install --frozen-lockfile

RUN pnpm --filter @coursehub/backend db:generate
RUN pnpm --filter @coursehub/backend build

# Scope backend deps
RUN pnpm --filter @coursehub/backend --prod deploy /temp-prod

RUN cp -r apps/backend/build /temp-prod/build

# Production
FROM node:lts-alpine AS prod

WORKDIR /app

RUN apk add --no-cache postgresql-client curl

COPY --from=base /temp-prod/build ./build
COPY --from=base /temp-prod/node_modules ./node_modules
COPY --from=base /temp-prod/package.json ./package.json

ENV NODE_ENV=production

# GitHub link to repo
LABEL org.opencontainers.image.source="https://github.com/BrNi05/CourseHub" \
      org.opencontainers.image.title="CourseHub Backend" \
      org.opencontainers.image.description="CourseHub backend server image" \
      org.opencontainers.image.licenses="Apache-2.0"

# Only checks if the server is running
HEALTHCHECK --interval=30s --timeout=5s --start-period=5s --retries=2 \
  CMD curl -f http://localhost:3000/api/health

CMD ["node", "build/main.js"]