Learn how to build, run, and manage Docker containers using advanced techniques such as Docker Swarm, Volumes, Networking, Stacks, and Security.

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If you want to thrive in the modern cloud-first world, you need to know Docker. But don’t stress, this course will give you all the skills you need.

To kick things off, you will learn how to deploy apps with Docker Compose, a key tool for managing multi-container applications running in single-engine mode. You will then move onto Docker Swarm which will allow you to stand up containers and orchestrate them at scale.

Towards the back half of the course, you will take a deep dive into Docker Networking, deploying apps with Docker Stacks, and some of the industry tools used for keeping Docker secure.

By the end of this course, you will be equipped with the knowledge and tools to run Docker at scale, no matter how many containers you have.

Docker Deep Dive: Advanced Techniques

Stack files are very similar to Compose files. The only requirement is that the `version:` key specifies a value of "3.0" or higher. See [the Docker docs](https://docs.docker.com/compose/compose-file/) for the latest information on Compose file versions and compatibility with your versions of Docker.

One of the first things Docker does when deploying an app from a stack file is to create any required networks listed under the `networks` key. If the networks don't already exist, Docker creates them.

Let's see the networks defined in the stack file.

## Networks

Stack files are very similar to Compose files. The only requirement is that the `version:` key specifies a value of "3.0" or higher. See [the Docker docs](https://docs.docker.com/compose/compose-file/) for the latest information on Compose file versions and compatibility with your versions of Docker.

One of the first things Docker does when deploying an app from a stack file is to create any required networks listed under the `networks` key. If the networks don't already exist, Docker creates them.

Let's see the networks defined in the stack file.

# Networks

Let's examine the secrets and networks section of the stack file. 

About the Course

Deploying Apps with Docker Compose

Docker Swarm

Docker Networking

Docker Overlay Networking

Volumes and Persistent Data

Deploying Applications with Docker Stacks

Security in Docker

What Next

Appendix

Inspecting the Stack File: Secrets and Networks

Networks