How confident are you in your knowledge of the basics and tools of Docker?

Docker is a containerization tool for applications that allows packaging an application with its dependencies into an isolated container. The basics of Docker include understanding images, containers, Dockerfile, and Docker Hub.

I confidently use Docker for:

• Creating Dockerfiles to automate image building.
• Running and managing containers using commands like docker run, docker ps, docker stop.
• Using Docker Compose for orchestrating multiple containers (e.g., web server + database).

A simple Dockerfile example for a PHP application:

FROM php:8.1-apache
COPY src/ /var/www/html/
EXPOSE 80

This allows quick deployment of an application in a standardized environment, facilitating development and deployment.

I am also familiar with working with volumes for data persistence and Docker networks for container communication.