Gain insights into Docker Compose, Docker Swarm, and Docker Networking. Explore app deployment, multi-container management, and security tools to thrive in the cloud-first environment.

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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

Swarm services only run on the worker nodes.

Swarm services only run on the worker nodes.

* `node1` = 4
* `node2` = 4
* `node3` = 2

* `node1` = 5
* `node2` = 4
* `node3` = 1

* `node1` = 3
* `node2` = 3
* `node3` = 4

* `node1` = 2
* `node2` = 2
* `node3` = 6

Suppose you are running 5 service replicas, named `ddd` on a swarm with 3 nodes. Each node has the following number of services running:

* `node1` = 2
* `node2` = 2
* `node3` = 1

After running the `docker service scale ddd=10` command, what are the probable configuration of services replicas running on each node?

Suppose you are running 5 service replicas, named <code>ddd</code> on a swarm with 3 nodes. Each node has the following number of services running:
<ul>
<li><code>node1</code> = 2</li>
<li><code>node2</code> = 2</li>
<li><code>node3</code> = 1</li>
</ul>
After running the <code>docker service scale ddd=10</code> command, what are the probable configuration of services replicas running on each node?

A swarm service application running on the ingress mode can only be accessed by the nodes running the application replicas.

A swarm service application running on the ingress mode can only be accessed by the nodes running the application replicas.

It is preferable to perform swarm backup from non-leader managers.

It is preferable to perform swarm backup from non-leader managers.

You can only restore to a node running the same version of Docker the backup was performed on.

You can restore to a node with a different IP address as the node the backup was performed on.

You can restore to a node running a different version of Docker the backup was performed on.

You can only restore to a node with the same IP address as the node the backup was performed on.

Which of the following conditions **must** be true for swarm restoration to work?

Which of the following conditions must be true for swarm restoration to work?

Take this quiz to revise this chapter's concepts.

About the Course

Multi-container Apps with Compose

Docker Swarm

Docker Networking

Docker Overlay Networking

Volumes and Persistent Data

Deploying Applications with Docker Stacks

Security in Docker

What Next

Appendix: Getting Docker and Compose

Quiz: Swarm Services and Backing Up