The Secrets to Slash Docker Image Size by 10x
Before Optimization A typical Dockerfile for a Node.js application looks like this: 1 2 3 4 5 FROM node:18 WORKDIR /app COPY . . RUN npm install CMD ["npm", "start"] This image ends up being over 1GB in size. The main reasons for this are: Heavy base image Development tools included Presence of unnecessary files Accumulation of cache files Optimization Techniques 1. Implement Multi-Stage Builds Separate the build and runtime stages. ...