DevOps Articles

Docker Build: A Beginner’s Guide to Building Docker Images

Docker has changed the way we build, package, and deploy applications. But this concept of packaging apps in containers isn’t new—it was in existence long before Docker.

When you create a Docker container, you’re adding a writable layer on top of the Docker image.

Let’s instruct Docker to copy our source during Docker build: # Filename: Dockerfile FROM node:18-alpine WORKDIR /usr/src/app COPY package*.json./ RUN npm install COPY..

You can view Docker logs in a Docker container: $ docker logs