Dockerfile

# base node image
FROM node:18-bullseye-slim as base
# set for base and all layer that inherit from it
ENV NODE_ENV production

# Install all node_modules, including dev dependencies
FROM base as deps

WORKDIR /app

ADD package.json package-lock.json .npmrc ./
RUN npm install --production=false

# Setup production node_modules
FROM base as production-deps

WORKDIR /app

COPY --from=deps /app/node_modules /app/node_modules
ADD package.json package-lock.json .npmrc ./
RUN npm prune --production

# Build the app
FROM base as build

WORKDIR /app

COPY --from=deps /app/node_modules /app/node_modules

ADD . .
RUN npm run build

# Finally, build the production image with minimal footprint
FROM base

WORKDIR /app

COPY --from=production-deps /app/node_modules /app/node_modules

COPY --from=build /app/build /app/build
COPY --from=build /app/public /app/public
COPY --from=build /app/package.json /app/package.json
COPY --from=build /app/start.sh /app/start.sh

ENTRYPOINT [ "./start.sh" ]