Docker for Beginners and Intermediate - Hands on DevOps™

Learn Docker with hands-on coding exercises. Take your DevOps Skill to the next level. Complete Docker for DevOps Course.

What you'll learn

Basic introduction of what docker is
Linus features that docker uses to pull off what it does( Namespaces, cgroups)
Linux capabilities
Docker filesystem
Basics of AWS ECS container orchestrator
Docker Compose


Requirements

Intermediate knowledge of linux
Basic understanding of programming
Basic understanding of aws will help in the section about ECS

Description

Docker and other containerization tools have taken the devops world by storm. Knowing at least the basics of docker has become mandatory for any role of software development you are in. However, for devops engineers/ site reliability engineers, a more detailed understanding of docker and other containerization technologies are desired. It does not entirely cut it to know just how to run basic commands on docker and make it work.

This course focuses on how docker works under the hood. It will guide you through the internal workings of the docker daemon and it’s interaction with the linux operating system step by step and explain how docker uses various linux kernel functionalities to make and run containers.


Besides a look at how docker operates under the hood, we will also take a look at basic docker commands, structure of build files etc-. We will also take a look at how to use docker compose to stand up a basic development environment for micro services. We will also look at building minimal container images to save on network throughput, disk size and also faster deployments. We will also be looking at what container orchestrators are and will have a hands-on session about the amazon ECS container orchestrator.

A bit of networking and linux knowledge is assumed for this course. Linux knowledge will help you all throughout the course and networking knowledge will come in handy when we cover the concepts pertaining to networking namespaces.

Course Details:

Description

Introduction and why we chose linux for the course.

Description on what docker is and why we use it

Birds eye view of various components in docker and it's interaction with OS

Differerence between user-space and kernel-space

Difference between containers and virtual machines.

Dockerfile, Docker images, Base image, docker pull

docker build, Running docker without root privileges

docker history command, From construct, ENV construct

Label construct, RUN construct, WORKDIR construct

ADD construct, COPY construct, EXPOSE construct, ENTRYPOINT construct, CMD construct, docker run command

docker repositories,docker hub, docker push,How is traffic routed to docker container?

docker ps command, sending signals to a process( docker kill, dockerstop)

How docker containers handle signals.

Introduction to how docker works under the hood

Introduction to cgroups

Cgroups cpu- hands on 1

Cgroups cpu- hands on 2

Cgroups cpu- hands on 3(cpu shares)

Cgroups cpu- hands on 4( cpuset + cpu share)

How docker restricts cpu using cgroups.

Introduction to cgoups memory subsystem

Cgroups memory subsystem hands-on

Introduction to namespaces

Basic networking and tcpdump

Ip subnetting and arp

ip,veth pairs, linux software bridge

Hands-on networking namespace.

How docker uses networking namespace

Pid namespaces hands-on

Mount namespaces hands-on

User namespaces hands-on

Introduction to linux capabilities + hands on

Capabilities in docker

Running docker containers as root

Docker compose introduction

Bringing up an application

Embedded dns, docker networks

Introduction to overlayfs

How docker uses overlayfs

How to take advantage of caching in docker builds

Building minimal containers in docker

Container orchestrators introduction

Overview of ECS orchestrator

Hands on(part 1)

Hands on(part 2)

ECS under the hood.

Introduction to docker daemon

Communicating to docker daemon over tcp/unix socket.


Who this course is for:

Devops Engineers looking to get deep into what docker is and actually understanding how it works
Anyone curious about the whole of docker ecosystem and how it works
System Administrators
Cloud Infrastructure Engineers
Developers looking to increase their productivity
Developers looking to understand how Docker works
Beginning and advanced Docker users looking to improve their skills
Network admins looking to break into the world of Docker development