A Practical Guide to Kubernetes

Course Overview

Kubernetes is a powerful container management tool that's taking the world by storm. This detailed course will help you master it. In this course, you'll start with the fundamentals of Kubernetes and what the main components of a cluster look like. You'll then learn how to use those ... See More

How You'll Learn

Faster than videos

Videos are holding you back. The average video tutorial is spoken at 150 words per minute, while you can read at 250. That‘s why our courses are text-based.

Progress you can show

Built in assessments let you test your skills. Completion certificates let you show them off.

Faster than videos

Videos are holding you back. The average video tutorial is spoken at 150 words per minute, while you can read at 250. That‘s why our courses are text-based.

Progress you can show

Built in assessments let you test your skills. Completion certificates let you show them off.

Course Contents

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1. How Did We Get Here?

Introduction

A Short History of Infrastructure Management

A Short History of Deployment Processes

The Schedulers

What is Kubernetes?

2. Running a Kubernetes Cluster Locally

Exploring the Options

Installing kubectl

Installing Minikube

Creating a Local Kubernetes Cluster with Minikube

Exploring Minikube Commands

Quick Quiz!

What's Next?

3. Pods

Getting Started with Pods

A Quick and Dirty Way to Run Pods

Defining Pods through Declarative Syntax

Components and Stages Involved in a Pod's Scheduling

Playing Around with the Running Pod

Running Multiple Containers in a Single Pod

Single vs. Multi-Container Pods

Monitoring Health

Quick Quiz

What's Next?

4. ReplicaSets

Getting Started with ReplicaSets

Creating ReplicaSets

Sequential Breakdown of the Process

Operating ReplicaSets

Quick Quiz!

What's Next?

5. Services

Getting Started with Communication

Creating Services by Exposing Ports

Sequential Breakdown of the Process

Creating Services through Declarative Syntax

Splitting the Pod and Establishing Communication through Services

Creating the Split API Pods

Defining Multiple Objects in the Same YAML file

Discovering Services

Quick Quiz!

What's Next?

Comparison with Docker Swarm

6. Deployments

Getting Started with Deploying Releases

Deploying New Releases

Sequential Breakdown of the Process

Updating Deployments

Defining a Zero-Downtime Deployment

Creating a Zero-Downtime Deployment

Rolling Back or Rolling Forward?

Playing around with the Deployment

Rolling Back Failed Deployments

Merging Everything into the Same YAML Definition

Updating Multiple Objects

Scaling Deployments

Quick Quiz!

What's Next?

Comparison with Docker Swarm

7. Ingress

Getting Started with Ingress

Why Services Are Not the Best Fit for External Access?

Enabling Ingress Controllers

Creating Ingress Resources Based on Paths

Sequential Breakdown of the Process

Creating Ingress Resources Based on Domains

Creating an Ingress Resource with Default Backend

Quick Quiz!

What's Next?

Comparison with Docker Swarm

8. Volumes

Getting Started with Volumes

Accessing Host’s Resources through hostPath Volumes

Running the Pod after mounting hostPath

Using hostPath Volume Type to Inject Configuration Files

Working with the New Prometheus Configuration

Using gitRepo To Mount a Git Repository

Non-Persisting State

Persisting State through the emptyDir Volume Type

Quick Quiz!

What's Next?

9. ConfigMaps

Getting Started with ConfigMaps

Injecting Configuration from a Single File

Injecting Configurations from Multiple Files

Injecting Configurations from Key/Value Literals

Injecting Configurations from Environment Files

Converting ConfigMap Output into Environment Variables

Defining ConfigMaps as YAML

A Plea NOT to Use ConfigMaps!

Quick Quiz!

What's Next?

Comparison with Docker Swarm

10. Secrets

Getting Started with Secrets

Exploring Built-In Secrets

Creating Generic Secrets

Mounting Generic Secrets

Secrets Compared to ConfigMaps

Not so Secretive Secrets

Quick Quiz!

What's Next?

Comparison with Docker Swarm

11. Namespaces

Getting Started with Cluster Division

Deploying the First Release

Exploring Virtual Clusters

Exploring the Existing Namespaces

Creating a New Namespace

Deploying to a New Namespace

Communicating between Namespaces

Deleting a Namespace and All Its Objects

Quick Quiz!

What's Next?

Comparison with Docker Swarm

12. Securing Kubernetes Clusters

Getting Started with Security

Accessing Kubernetes API

Authorizing Requests and Creating a Cluster

Creating Users to Access the Cluster

Accessing the Cluster as a User

Exploring RBAC Authorization

Peeking into Pre-Defined Cluster Roles

Creating Role Bindings

Creating Cluster Role Bindings

Combining Role Bindings with Namespaces

Granting Access as a Release Manager

Replacing Users With Groups

Quick Quiz!

What's Next?

Comparison with Docker Swarm

13. Managing Resources

Getting Started with Managing Resources

Defining Container Memory and CPU Resources

Getting Practical with Container Memory and CPU Resources

Measuring the Actual Memory and CPU Consumption

Allocating Insufficient Resource than the Actual Usage

Allocating Excessive Resource than the Actual Usage

Adjusting Resources Based on Actual Usage

Exploring Quality of Service (QoS) Contracts

Examining QoS in Action

Defining Resource Defaults and Limitations within a Namespace

The Mismatch Scenario

Defining Resource Quotas for a Namespace

Exploring the Effects by Violating Quotas

Exploring the Types of Quotas

Quick Quiz!

What's Next?

Comparison with Docker Swarm

14. Creating A Production-Ready Kubernetes Cluster

Getting Started with Production-Ready Clusters

Kubernetes Operations (kops) Project

Preparing for the Cluster Setup: AWS CLI and Region

Preparing for the Cluster Setup: IAM Group and User

Preparing for the Cluster Setup: Availability Zones and SSH Keys

Creating a Cluster: Creating S3 Bucket and Installing kops

Creating a Cluster: Discussing the Specifications

Creating a Cluster: Running and Verification

Exploring the Components That Constitute the Cluster

Updating the Cluster

Sequential Breakdown and Verification of the Update Process

Upgrading the Cluster Manually: Changing the Kubernetes Version

Exploring and Verifying the Output

Upgrading the Cluster Automatically

Accessing the Cluster: Understanding the Protocol

Accessing the Cluster: Adding the Load Balancer

Deploying Applications

Exploring the High-Availability and Fault-Tolerance

Giving Others Access to the Cluster

Destroying the Cluster

Quick Quiz!

What's Next?

Comparison with Docker Swarm

15. Persisting State

Getting Started with State Persistence

Deploying Stateful Applications without Persisting State

Analyzing Failure of the Stateful Application

Creating AWS Volumes

Creating Kubernetes Persistent Volumes

Claiming Persistent Volumes

Creating Deployment for Attaching Claimed Volumes to Pods

Verifying the State Persistence and Exploring the Failures

Removing the Resources and Exploring the Effects

Using Storage Classes to Dynamically Provision Persistent Volumes

Using Default Storage Classes

Defining Storage Classes

Creating Storage Classes

Quick Quiz!

What's Next?