11 Good Docker Tutorials for Beginners to Master in 2023

Docker‘s phenomenal growth is one of the biggest devops stories of the decade. This comprehensive guide aims to take you from beginner to master by sharing the 11 best online Docker tutorials curated by an industry expert.

Whether you are new to Docker or an experienced enthusiast looking to expand your skills, you are sure to find invaluable lessons here.

Why Docker Matters Today

Let‘s first understand why over 5 million developers have already jumped on the Docker bandwagon:

Surging Popularity

Docker adoption has been skyrocketing amongst developers over the last 5 years.

  • As per StackOverflow‘s 2022 survey, over 65% of developers are now using Docker compared to just 35% in 2016. Containerization skills are becoming mandatory even for full-stack, frontend and mobile app developers.

  • An industry report by Mirantis reveals that over 72% of companies are using Docker in production today compared to just 26% in 2016.

  • Docker Hub hit 2 million containers pulls per day in 2022 – doubling every year!

Clearly, Docker is dominating as the container platform of choice today.

Faster Innovation

Forrester research shows that Docker helps over 60% of enterprises accelerate application delivery by 50% or more. How?

  • Developers can build and test locally against production-grade environments using Docker. No more "works on my machine" surprises!

  • Packaged apps are highly portable across environments. No more configuration drift blocking deployments!

  • Rolling out updates is easy by spinning up new Docker containers in minutes instead of waiting for VMs.

These benefits result in lower lead times, quicker recovery and higher productivity.

Increased Efficiency

Since Docker containers share resources of the host machine, they lead to major cost savings between 30-60% compared to heavy virtual machines.

Containerization has also lead to 4X improvement in resource utilization as per a Cloud Native Computing Foundation survey. Running isolated workloads side-by-side enables greater density.

As digital initiatives face increased scrutiny, Docker enables delivering better software while being fiscally prudent.

How Docker Changed The Game

Traditionally, shipping software required packing entire virtual machines with the OS, dependencies and libraries. This slowed down deployment velocity:

docker-vms.png

Docker revolutionized this by containerizing just the application layer using thin, lightweight wrappers around everything needed to run it in isolation:

docker-containers.png

This novel approach powers the entire shift towards cloud native technologies today.

Now that we‘ve seen the immense value Docker delivers, let‘s get into these hand-picked tutorials to master it!

Docker Tutorials for Beginners

Just taking your first steps with Docker? Start with the basics:

1. Docker in 5 Minutes

This neat little guide from Docker themselves is perfect for getting your feet wet:

https://www.docker.com/get-started

It covers the key concepts and commands like containers, images, running Docker interactive tutorials right in your browser so you can try out everything yourself then and there!

The clear explanations and hands-on learning make even absolute beginners feel right at home with Docker in no time.

2. Docker for the Absolute Beginner

This free Docker tutorial from TechWorld with Nana provides a super friendly introduction from ground zero:

https://www.youtube.com/watch?v=Wf2eSG3owoA

It holds your hand through every step – installation, running containers, Dockerfile, image building, networking – explaining details verbally and visually.

The relaxed pace and thorough coverage give you confidence to self-learn Docker basics comfortably.

3. Docker Mastery

To level up from fundamentals, Jason Taylor‘s $10 Udemy course packs great value:

https://www.udemy.com/course/docker-mastery/

It dives deeper into Docker volumes for state persistence, multi-container apps, deployments using Docker machine/swarm/compose, and much more through over 77 lectures and 17.5 hours of video content!

The engaging delivery keeps you hooked while cementing core Docker skills.

You‘ll be amazed at how much you can build yourself after finishing this bestseller.

Intermediate Docker Skills

Ready for the next step? Pick up these intermediate skills:

4. Optimize Docker Builds

Speeding up Docker build time from 10+ minutes to under a minute with smarter Docker images. Here‘s how:

https://stackify.com/docker-build-tips/

You‘ll learn to optimize Dockerfiles, leverage multi-stage builds, running containers as non-root user, experimental features and more expert tricks.

Watch your Docker productivity skyrocket!

5. Develop Inside Containers

Pre-configured Docker development environments let you code apps inside containers directly:

https://code.visualstudio.com/docs/remote/containers

VS Code makes this seamless. It automatically spins up a Docker container matching your project stack like Node, Python, Java etc. This encapsulates all dependencies safely without messing up your local machine!

Immerse yourself to gain deeper Docker skills through this modern container-first workflow.

6. CI/CD with Docker

If you grasped Docker itself, the next vital skill is continuously building, testing and delivering Docker applications using automation.

https://www.docker.com/blog/accelerating-ci-cd-pipelines-with-docker/

This guide shows integrating Docker tightly into your DevOps pipelines with Jenkins, GitLab, CircleCI etc.

You‘ll pick up tons of industry best practices around versioning images, image scanning, artifact management and incremental caching to supercharge your release velocity.

Advanced Docker Tutorials

Take your Docker mastery to the next level with these advanced guides:

7. Docker for Machine Learning

Learn specialized workflows for running GPU-intensive deep learning workloads at scale using Docker:

https://www.pluralsight.com/courses/docker-for-machine-learning

Beyond basics, you‘ll gain insider techniques for efficient data science pipelines like version controlling models, standardizing environments, accelerated model building parallelism, simplifying deployment of AI microservices and monitoring them.

Welcome to the cutting-edge!

8. Docker Security

Harden your Docker apps, infrastructure and supply chain from vulnerabilities:

https://www.anchore.com/docs/current/tutorials/docker-security/

Expert-led guidance covering image scanning, fixing CVEs, runtime monitoring, access policies, network segmentation, system hardening, CIS Docker benchmarks and much more in this vital arena.

Tip: Always pursue defense-in-depth with containers!

9. Docker Monitoring

Docker‘s dynamic nature calls for robust monitoring capabilities to ensure high availability:

https://www.datadoghq.com/blog/monitor-docker-infrastructure/

Battle-tested solutions to collecting Docker metrics, alerts, logging, tracing and visiualizing them with Datadog. Includes instrumenting apps via code, autodiscovery, tagging, dashboards, anomaly detection and more operational patterns.

This scales visibility as you grow while meeting SLAs.

10. Comparative Analysis

Consider if alternatives like serverless or conventional VMs suit your needs better:

https://dzone.com/articles/docker-vs-serverless-vs-vms-whats-the-difference

Get clarity by comparing approaches across app architecture styles, deployment tradeoffs, resource overhead, scaling thresholds, security postures, cost economics and more.

The techno-business context helps match the best platform correctly to workload needs.

Conclusion

That wraps up this expert hand-picked selection of the top Docker tutorials in 2023 – covering everything from basics to advanced use cases!

Here is some parting advice:

  • Start immediately putting lessons into practice through fun experiments like containerizing hobby apps, microservices, websites etc. Real hands-on skills stick the fastest!

  • Keep learning together with your team. Make documentation, demos and training a regular ritual even as you scale Docker usage.

  • Participate in Docker community forums to exchange ideas, showcase your work and be inspired for the next level!

  • Consider guiding others once you get proficient by writing tutorials, creating videos, conducting Docker meetups and sharing stories. Helping newcomers creates compound knowledge for everyone!

I sincerely hope you found amazing value in these curated tutorials to become a Docker power user yourself. Happy learning and let your Docker imagination run wild!

Do bookmark & share this guide with any fellow Docker enthusiasts in your network.