Docker Fundamentals
The Docker Fundamentals course will get you up to speed with building and running containers using Docker. We will teach you the core concepts around Docker and containers. You will become familiar with the tooling around Docker and learn how to apply best practices. We will take you all the way from installing Docker on your machine to spinning up multiple containers that communicate with each other.
This course teaches the fundamental knowledge required in the other courses. If you’re already familiar with Docker, I generally recommend watching the videos at a higher speed rather than skipping them.
Content
Installing Docker
- Introduction
- What to install
- Docker for Mac
- Docker for Windows
- Linux
- Docker toolbox
- Docker Machine
- Creating Docker Machines
- Creating Docker Machines II
Getting started
- Introduction
- Running your first container
- Starting a shell
- Finding images
- Letting things run
- Cleaning things up
- Hints
- Publishing a service
- Data in containers
- Isolation
- Container communication
- User defined networks
- The CLI
- Hiding legacy commands
- Getting help
Image basics
- Introduction
- What is an Image
- Managing images
- Repositories and tags
- Registries
- Creating a Docker ID
- Meet Docker Hub
- Docker Store
- docker login
- Creating Images
- Comments
- Pushing images
- Docker Cloud
- Hub, Store, Cloud?
- Docker Plugins
- Using a 3rd party registry
- Your own image
Container lifecycle
- Introduction
- Detaching and attaching
- Visit your container
- Interacting with containers
- Stopping a container
- The end of containers
- Debugging the issue from the last assignment
- Becoming PID1
- Verify it is PID1
- Reading logs
- Producing logs
- Using logfiles
- Logging errors
Persisting data
- Introduction
- Mounting data
- Shortening the command
- The mount option
- Volumes
- Naming volumes
- Using mount for volumes
- Managing volumes
- Disappearing volumes
- The VOLUMES instruction
- Simultaneous access
- Using volumes from other containers
- Prepopulating volumes
- When to use volumes
Data in images
Networking 101
- Introduction
- Publishing ports
- Publishing multiple ports
- The EXPOSE instruction
- What will be published?
- Links
- User defined networks
- Resolving hostnames
- User defined networks and links
- Sharing names
Container behavior
- Introduction
- The environment
- The ENV instruction
- More on env vars
- Postgres in a nutshell
- Configuring postgres
- Using the database
- Try it out
- Multiple containers
- How it works
Scaling a web service
- Introduction
- What we will build
- A basic image
- Testing the image
- Substituting ENV vars
- Making it dynamic
- Running the load balancer
- It does not stop
- Using the load balancer
- Scaling the app
Managing containers with Docker Compose
- Introduction
- Compose example
- An introduction to YAML
- Our first compose file
- Compose resources
- Configuring our database
- Using a volume
- Interacting with containers
- Integrate the demo_web_app
- Managing environment variables
- Specifying dependencies
- Limitations of depends_on
- Integrate the load balancer
- Enhancing the load balancer
- Building the load balancer
- Scaling a service