Docker basics: Images & Containers

In this video, we cover the absolute essentials of Docker! If you are a beginner looking to understand how Docker works, how to run containers in the foreground vs. background, how to manage Nginx, and how to enter an interactive container shell (-it), this step-by-step tutorial is for you. We start from checking the version, fixing port conflicts by stopping local services, managing container logs, and exploring the internal file system of Ubuntu and Nginx containers. 📌 What You Will Learn in This Video: Running Nginx in the foreground vs. detached (background) mode using -d Stopping containers using short Container IDs or names Troubleshooting port 80 conflicts with systemctl stop nginx Inspecting container logs using docker logs Accessing a container's terminal interactively with -it and bash ⏱️ Timestamps: 00:00 - Introduction & Checking Docker Version 01:15 - Resolving Port Conflicts (systemctl stop nginx) 02:30 - Running Nginx in Foreground vs. Background (-d) 04:45 - Listing & Stopping Running Containers (docker ps & docker stop) 06:15 - Checking Container Logs (docker logs) 07:40 - Interactive Mode: Exploring Nginx File System (-it bash) 09:55 - Interactive Mode: Creating Folders inside an Ubuntu Container 11:30 - Conclusion & Next Steps 💻 Commands Used in This Video: Check version docker --version Stop local Nginx to free up Port 80 sudo systemctl status nginx sudo systemctl stop nginx Run container in foreground (stops with Ctrl+C) docker run --rm -p 80:80 nginx Run container in background (Detached mode) docker run --rm -dp 80:80 --name webhost nginx List running containers docker ps Stop container using first 4 digits of ID or Name docker stop ef2d docker stop webhost View container logs docker logs webhost Interactive shell inside Nginx container docker run -it --rm -p 80:80 --name webhost nginx bash Interactive shell inside Ubuntu container docker run -it --rm -p 80:80 --name ubuntu ubuntu 🔔 Don't forget to Like, Share, and Subscribe for more DevOps tutorials! #docker #devops #dockercontainers #nginx #ubuntu #linuxcommands #techtutorial #programming #backenddevelopment #learndocker