1. Always use specific version

❌ Don't do this

FROM node

✅ Do this because it will ensure your container image version

FROM node:20.0.0

2. Try to use alpine version

❌ Don't do this because It can be use large

FROM node:20.0.0

✅ Do this for small official image

FROM node:20.0.0-alpine

3. Dont install all dependencies

❌ Don't do this

RUN npm install

✅ Do this because you don't need dev dependencies in your production server

RUN npm install --production

4. Mantain versioning

❌ Don't do this

docker build -t myapp .

✅ Do this it will help you to track version of your container images.

docker build -t myapp:1.0 .