Docker Mastery: The Complete Toolset From a Docker Captain
Be ready for the Dockerized future with the number ONE Docker course on Udemy. Welcome to the most complete and up-to-date course for learning and using Docker end-to-end, from development and testing, to deployment and production. Taught by an award-winning Docker Captain and DevOps consultant.
Just starting out with Docker? Perfect. This course starts out assuming you’re new to containers.
Or: Using Docker now and need to deal with real-world problems? I’m here for you! See my production topics around Swarm, secrets, logging, rolling upgrades, and more.
BONUS: This course comes with Slack Chat and Live Weekly Q&A with me!
Why should you learn from me? Why trust me to teach you the best ways to use Docker?
(Hi, I’m Bret, please allow me to talk about myself for a sec):
I’m A Practitioner. Welcome to the real world: I’ve got 20 years of sysadmin and developer experience, over 30 certifications, and have been using Docker and the container ecosystem for my consulting clients and my own companies since Docker’s early days. Learn from someone who’s run hundreds of containers across dozens of projects and organizations.
I’m An Educator. Learn from someone who knows how to make a syllabus: I want to help you. People say I’m good at it. For the last few years I’ve trained thousands of people on using Docker in workshops, conferences and meetups. See me teach at events like DockerCon, O’Reilly Velocity, GOTO Conf, and Linux Open Source Summit. I hope you’ll decide to learn with me, and join the fantastic online Docker community.
I Lead Communities. Also, I’m a Docker Captain, meaning that Docker Inc. thinks I know a thing or two about Docker and that I do well in sharing it with others. In the real-world: I help run two local meetups in our fabulous tech community in Norfolk/Virginia Beach USA. I help online: usually in Slack and Twitter, where I learn from and help others.
“There are a lot of Docker courses on Udemy — but ignore those, Bret is the single most qualified person to teach you.” – Kevin Griffin, Microsoft MVP
Giving Back: a portion of my profit on this course will be donated to supporting open source and protecting our freedoms online! This course is only made possible by the amazing people creating open source. I’m standing on the shoulders of (open source) giants! Donations will be split between my favorite charities including the Electronic Frontier Foundation and Free Software Foundation. Look them up. They’re awesome!
This is a living course, and will be updated as Docker features and workflows change.
This course is designed to be fast at getting you started but also get you deep into the “why” of things. Simply the fastest and best way to learn the latest docker skills. Look at the scope of topics in the Session and see the breadth of skills you will learn.
Also included is a private Slack Chat group for getting help with this course and continuing your Docker and DevOps learning with help from myself and other students.
“Bret’s course is a level above all of those resources, and if you’re struggling to get a handle on Docker, this is the resource you need to invest in.” – Austin Tindle, Course Student
Some of the many cool things you’ll do in this course:
Edit web code on your machine while it’s served up in a container
Lock down your apps in private networks that only expose necessary ports
Create a 3-node Swarm cluster in the cloud
Use Virtual IP’s for built-in load balancing in your cluster
Optimize your Dockerfiles for faster building and tiny deploys
Build/Publish your own custom application images
Create your own image registry
Use Swarm Secrets to encrypt your environment configs, even on disk
Deploy container updates in a rolling always-up design
Create the config utopia of a single set of YAML files for local dev, CI testing, and prod cluster deploys
And so much more…
After taking this course, you’ll be able to:
Use Docker in your daily developer and/or sysadmin roles
Make Dockerfiles and Compose files
Build multi-node Swarm clusters and deploying H/A containers
Build a workflow of using Docker in dev, then test/CI, then production with yaml
Protect your keys, TLS certificates, and passwords with encrypted secrets
Keep your Dockerfiles and images small, efficient, and fast
Develop locally while your code runs in a container
Protect important persistent data in volumes and bind mounts
Lead your team into the future with the latest Docker container skills!
Extra things that come with this course:
Access to the course Slack team, for getting help/advice from me and other students.
Bonus videos I put elsewhere like YouTube, linked to from this courses resources.
Weekly Live Q&A on YouTube Live.
Tons of reference links to supplement this content.
Updates to content as Docker changes their features on these topics.
Monthly new videos on popular questions from students.
Course Introduction and Docker Intro
High level overview of sections and lectures.
Learn about the origin of containers and why Docker is the right tool at the right time!
Learn a bit about Bret.
Join Bret on YouTube Live every week for getting questions answered about Docker Mastery and all things containers.
Common Questions in This Course
The Best Way to Setup Docker for Your OS
Docker's product line is expanding and this will help you decide which "Edition" is for you, and also go over CE vs. EE, versioning, and Edge vs. Stable.
What you need to get started on Windows 10, Server 2016, and options for older versions.
Walkthough of getting "Docker for Windows" and tools for this course to work on Windows 10 Pro, Enterprise, and Server 2016
Walkthrough of getting "Docker Toolbox" and tools for this course to work on Windows 7, 8, and 10 Home edition
Walkthrough of getting Docker for Mac installed and additional tools for this course. Includes details on bash tab completion and settings tweaks.
Walkthrough of getting Docker tools working on Linux desktop or server. Also tips on code editor, permissions, cloning the course repo, and more.
Note that Docker's version has changed so it may look weird in this course if you don't understand the numbering change. Here's some quick info.
Creating and Using Containers Like a Boss
Section Overview, and ensuring Docker is working and on a recent version.
Learn how to run a container, and manage its existence.
Starting a container does lots of things in the background, lets talk about those.
See how a container is quite different then a VM, and yet how they have similar concepts.
"Windows Containers" were born in 2016, and are quickly catching up with the Linux container craze. Here's a preview Lecture of what's coming in a future update to this course.
Assignment to startup a typical three container service with nginx, mysql, and apache. Also, getting used to using docs.docker.com.
(optional) I walk through the assignment as how I would do it.
Use cli commands to monitor containers and see what's running in them.
Use docker cli to get a full shell inside containers, no SSH needed. Also learn a about Linux distributions in containers like Ubuntu and Alpine.
Learn the concepts around container networking, and how Docker handles it. Inspect a container IP and see diagrams on how traffic gets in and out.
Quick note on a fix you should add to future lessons where I use ping from a nginx container.
Practice the commands for controlling docker networks on your local machine.
Understand how containers find each other using dynamic DNS rather than IP's.
Assignment to use container shells to test networking between them.
(optional) I walk through the assignment as how I would do it.
Assignment to test DNS alias naming on multiple containers.
(optional) I walk through the assignment as how I would do it.
Container Images, Where To Find Them and How To Build Them
Section Overview, and a discussion about what an image is and isn't.
Dig into what Docker Hub provides us. It's the future of package managers.
Docker caches images locally, you'll need to know how it works in order to manage it properly. Let's dig in!
Getting images in and out of an image repository is a fundamental common task, lets try it.
Dockerfiles are the recipes you make to create great containers. Let's start with the essentials of what's in the Dockerfile.
Once you have your Dockerfile, you need to build an image from it. Lets see how that works.
Dockerfiles can add on to existing images. Lets see how we might do that.
Assignment to create your own Dockerfile recipe and test it in containers.
(optional) I walk through the assignment as how I would do it.
Using the prune command to clean up various things in docker.
Container Lifetime & Persistent Data: Volumes, Volumes, Volumes
Understand the lifecycle of a container and how we should separate application artifacts and unique data that we need to preserve across containers.
Learn how to use Docker Volumes to store important data we need to keep, and let your persistent data outlive the container.
See how to create a link between host and container directories for various purposes, including easy source-file development.
Assignment to deal with databases and persistent data in containers through volumes.
(optional) I walk through the assignment as how I would do it.
Assignment to edit code on host while it's served up in a container.
(optional) I walk through the assignment as how I would do it.
Making It Easier with Docker Compose: The Multi-Container Tool
Section Overview and discussing the features and purpose of compose files, a key part of using Docker locally and in production.
Get your feet wet with basic commands and workflow of our new favorite tool in this course!
Assignment to create your own Compose file to run a multi-app service (Drupal and Postgres).
(optional) I walk through the assignment as how I would do it.
Learn to have Compose run your docker builds for you on startup.
Assignment to create your own Compose file to build images with custom options (Drupal and Postgres).
(optional) I walk through the assignment as how I would do it.
Swarm Intro and Creating a 3-Node Swarm Cluster
Learn how Docker has some great built-in features for scaling your containers and operating a cluster.
Let's use your local docker in a 1-node Swarm to learn the basics.
Note that 18.09.0 release has a bug in docker-machine with Swarm ports not working.
You'll build a 3-host Swarm cluster so we can scale our apps out for high-availability.
Swarm Basic Features and How to Use Them In Your Workflow
Learn how Swarm can seamlessly let containers talk between hosts.
See how Swarm can accept packets on any Swarm node and route to the proper container.
Create your own distributed container service, with custom networks and multiple containers dynamically provisioned.
(optional) I walk through the assignment as how I would do it.
Learn how to use your existing compose files in a production Swarm cluster.
With this lesson you'll learn why you need to protect secrets and how Swarm enables you to do that easily.
Walk through the features of Secrets and how to store private information securely and ensure they get to only the containers that need them.
Learn how to deploy Stacks with Secrets referenced in your compose YAML files.
Modify a compose file to make it production-ready and use secrets to pass config values.
(optional) I walk through the assignment as how I would do it.
Swarm App Lifecycle
Understand how to use "simulated" secrets with the docker-compose CLI.
Learn how a single or multiple compose files can serve both dev and ops on local machines, in your CI automation, and in CD for production deployments.
Learn key features of the service update command and when to use it for updating your containers while the are live.
Discover how built-in healthchecks make your containers even smarter, and how docker handles them.
Container Registries: Image Storage and Distribution
Learn more features you get from Docker Hub for free, and what you need to pay for.
Learn what the free Docker Distribution (aka Registry) can do for us and what things should we be concerned with when deploying it.
Learn how to run and use your own image registry on your own servers.
Learn how to secure Docker Registry by enabling HTTPS and basic auth using Play With Docker.
Registry mostly acts the same in a Swarm cluster, but lets use Play-With-Docker to see some slight differences.
Learn some other popular options for storing your images in the cloud and on premise.
DevOps and Docker Clips
A viewer asks about how their local docker container IP's, if behind NAT, can have issues with outside subnets at their company. I explain some of the ways even NAT won't solve IP routing for containers and how you can change your settings to different private subnets.
