Dockerfile tips

Dockerfile

## NODE
################################## 

# multi-stage build to exclude intermediate build files and keep only resulting artifacts
# -slim uses debian and is similar in size, alpine ~120 / -sim ~180mb, while full >1gb!
FROM node:16-alpine AS build
# FROM node:18-slim AS build

WORKDIR /app
COPY . .
RUN yarn install

# FROM gcr.io/distroless/nodejs18-debian11
FROM node:16-alpine

COPY --from=build /app /app
EXPOSE 3000
# react-scripts -> do not try to open browser window as it tries to use powershell even in docker
ENV BROWSER=none
# if using host/bind mounts from windows, volumes are fine
ENV WATCHPACK_POLLING=true
CMD ["yarn", "start"]

########################################