Docker and Containerization

About this course

What you will learn

• Install and operate Docker on a Linux host.
• Build, run, inspect, and troubleshoot containers and images.
• Configure container networking and persistent storage.
• Deploy multi-container applications using Docker Compose.
• Push images to Docker Hub and retrieve images from private registries.
• Complete an end-to-end containerized web application deployment.

Curriculum

1. 01Introduction to DockerIdentify Docker components and explain the container lifecycle+

   • Containers and containerization concepts
   • Virtual machines vs. containers
   • Docker architecture: Engine, daemon, CLI and Docker Hub
   • Docker images vs. containers; practical use cases
2. 02Docker Installation and ConfigurationInstall Docker and successfully run a test container+

   • Install Docker Engine and Compose plugin on Ubuntu/Linux
   • Docker Desktop overview
   • Manage Docker service; verify installation
   • Run the hello-world container; Docker permissions
3. 03Essential Docker CommandsOperate an Nginx container and publish it on a host port+

   • Find, pull, and list images
   • Create, run, stop, restart, and remove containers
   • Interactive/detached modes; port mapping; environment variables
   • Inspect objects and clean up unused resources
4. 04Docker Images and DockerfileBuild a custom web server image from a Dockerfile+

   • Image layers and build cache
   • Dockerfile: FROM, RUN, COPY, WORKDIR, CMD, ENTRYPOINT, ENV and EXPOSE
   • Build and tag custom images; .dockerignore
   • Introduction to multi-stage builds
5. 05Container Management and DebuggingDiagnose a deliberately misconfigured container+

   • Container lifecycle and restart policies
   • docker logs, exec, inspect, stats, and top
   • Troubleshoot exit codes, failed startups, and port conflicts
   • Basic health checks
6. 06Docker NetworkingConnect two containers on a custom network.+

   • Default bridge, host, and none networks
   • Create user-defined bridge networks
   • Container name resolution and inter-container connectivity
   • Port publishing and basic network troubleshooting
7. 07Docker Storage and VolumesRun MySQL with persistent storage+

   • Container writable layers and persistence
   • Named volumes vs. bind mounts
   • Mount and inspect Docker volumes
   • Persist, back up, and restore database data
8. 08Running Multiple ContainersConnect a simple web container to a MySQL container+

   • Multi-container application architecture
   • Application-to-database communication
   • Service environment variables and shared networks
   • Run and test web and database containers
9. 09Docker ComposeDeploy the application and database using Docker Compose+

   • Compose fundamentals and YAML structure
   • Define services, networks, volumes, ports and environment variables
   • Use compose.yaml and .env files
   • docker compose up, down, logs, ps, exec, and build
10. 10Containerizing ApplicationsContainerize and test one small application+

    • Introduction to application containerization
    • Identify application dependencies
    • Create a basic Dockerfile for a simple Flask or PHP app
    • Build, run, and test the application container
11. 11Docker Registry and Image ManagementPush an image to Docker Hub and pull it from a private repository+

    • Docker Hub repositories and image tags
    • Authenticate, tag, push, and pull images
    • Access private repositories and private registry images
    • Brief introduction to cloud container registries
12. 12Complete Project – Hands-onDeliver a working multi-container web application using Docker Compose+

    • Prepare a Docker host and a simple web application
    • Build an application image and configure MySQL
    • Create Compose services, networks, and persistent database volume
    • Deploy, test, troubleshoot, push image, and redeploy

Prerequisites

• Basic Linux command-line knowledge and familiarity with installing software.
• Basic understanding of networking concepts, ports, and applications.