Istio Hands-On for Kubernetes from Udemy

Istio is one of the most talked-about frameworks in recent years. If you've worked with Kubernetes before, then you'll want to learn Istio. With this hands-on, practical course, you'll be able to gain experience in running your own Istio Service Meshes.

The course has now been updated to Istio 1.15, which now supports Apple M1 (and ARM processors in general).

This course is designed to be clear and understandable - and fun. But we also go into detail - you'll be learning how to use Istio in real production scenarios - and you'll be looking at the inner workings of Istio.

You can run this course on your own computer, using Minikube (8Gb of Host Ram required) - you don't need a cloud provider, although you can also run the course there - anywhere that you can run Kubernetes.

After a brief talk about what Istio is, we go straight into a hands-on demo, where you'll experience how Istio can solve difficult problems on live projects.

Then you'll find out the details of:

Traffic Management
Telemetry
Visualisation (with Kiali)
Distributed Tracing (with Jaeger)
Using Grafana to monitor network traffic
How to deploy canary releases
How to do "Dark Releases"
Istio VirtualServices and DestinationRules
Load Balancing and Session Affinity
Istio Gateways
Resilience testing with Fault Injection
Circuit Breaking/Outlier Detection
Securing cluster traffic with Mutual TLS (mTLS)

The "learning curve" for Istio is steep - which is why I've designed this course to be as clear and understandable as possible, and I hope with the hands-on demos, you'll also have fun along the way. But most of all, Istio is an extremely powerful tool, and it's a great addition to your CV.

What's inside

Learning objectives

What are service meshes?
What is istio?
How can i run istio locally?
What are envoy proxies?
The istio control and data planes
Visualising a cluster using kiali
Distributed tracing using jaeger
Monitoring metrics using grafana

What are istio virtualservices and destinationrules?
How to deploy canaries (and what they are!)
How to deploy "dark releases"
Istio gateways
How to test the resilience of a system using fault injection
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What are service meshes?
What is istio?
How can i run istio locally?
What are envoy proxies?
The istio control and data planes
Visualising a cluster using kiali
Distributed tracing using jaeger
Monitoring metrics using grafana
What are istio virtualservices and destinationrules?
How to deploy canaries (and what they are!)
How to deploy "dark releases"
Istio gateways
How to test the resilience of a system using fault injection
Show more
Show less

Syllabus

Introduction

Course Downloads

You'll find out what Istio is for, and why Service Meshes are very useful on Kubernetes clusters

What is Istio?

(Optional): Installing a Local Kubernetes Environment

What to do if you need to install Kubernetes locally?

(Optional) Choosing between Docker Desktop and Minikube

(Optional) How to Install Docker Desktop

(Optional) How to Run Kubernetes in Docker Desktop

(Optional) Installing Minikube

(Optional) Choosing a Minikube Driver

We'll give Istio a try out - a complex problem on a project can be solved using Istio's monitoring tools - and we can come up with a fix!

What to expect in this section

Note for Docker Desktop Users

Getting Istio Running

Enabling Sidecar Injection

Visualizing the System with Kiali

Finding Performance Problems

Introducing Envoy

Introducing Envoy - The Data Plane

The next lecture is optional!

Going Deeper into Envoy (Optional Video)

Learn about Istio's Telemetry features, including Kiali, Jaeger and Grafana

Starting the Demo System

Kiali Deeper Dive

Kiali Dynamic Traffic Routing

Distributed Tracing Overview

Using Jaeger UI

Why you need to "Propagate Headers"

What happens if you don't propagate headers?

Metrics with Grafana

How and why to manipulate traffic in Istio - Canaries, VirtualServices and DestinationRules

Introducing Canaries

Canaries with Replicas

Version Grouping

Elegant Canaries and Staged Releases

What is an Istio VirtualService?

VirtualService Configuration in yaml

What is an Istio DestinationRule?

Set up Load Balancing, and understand why it doesn't currently work with weightings

Session Affinity ("Stickiness")

What is Consistent Hashing useful for?

Know why an Istio Gateway is essential if you want to apply traffic management and monitoring to front ends

Reminder for Docker Desktop users - port-forwarding

Why do I need an Ingress Gateway?

Edge Proxies and Gateways

Prefix based routing

Subdomain Routing

Deploy a "Dark Release" to only selected users, such as the system engineers.

Using a browser extension to modify headers

If you have problems in the next section

Header Based Routing

Dark Releases for all Microservices

Inject faults into a live system to test its resilience to failure

Fault Injection

Identify the need to avoid cascading failures, and use Circuit Breakers to protect against them

Cascading Failures

Configuring Outlier Detection

Testing Circuit Breakers

Understand the need for TLS between microservices, and use Istio to enable this

Why is encryption needed inside a cluster?

How Istio can upgrade traffic to TLS

Enabling mTLS - it's Automatic

STRICT vs PERMISSIVE mTLS

STRICT mTLS Works in Both Directions

Customizing and Installing Istio with Istioctl

Quick note on "uninstall"

Introducing istioctl

Istio Profiles

Installing addons

Notes on the upcoming video

Tuning Profiles

Note on the upcoming video

Default vs Demo Profiles - CPU and Memory

Generating YAML Manifests

Upgrading Istio

In-Place Upgrades

"Canary Upgrades" (Rolling Upgrades)

Live Cluster Switchovers (Alternative to the official upgrade paths)

Goodbye!

Goodbye

Good to know

Know what's good

, what to watch for

, and possible dealbreakers

Covers Istio, which is highly relevant to operating Kubernetes clusters in an enterprise environment

Teaches Istio's Telemetry features including Kiali, Jaeger, and Grafana, which are widely used in industry

Provides hands-on labs and interactive materials, which are essential to learning Istio effectively

Taught by Richard Chesterwood and Prageeth Warnak, who are recognized for their work in Kubernetes and Istio

Requires learners to come in with some experience in Kubernetes, which may not be suitable for complete beginners

Focuses on practical application of Istio, which may be less useful for learners seeking theoretical understanding

Career center

Learners who complete Istio Hands-On for Kubernetes will develop knowledge and skills that may be useful to these careers:

Site Reliability Engineer

A Site Reliability Engineer is responsible for ensuring the reliability and performance of IT systems and services. This course can be helpful for Site Reliability Engineers who want to gain in-depth knowledge of Istio and its usage in production environments. By understanding how Istio can improve system reliability, performance, and availability, individuals can excel in this role.

See salaries and explore the career path for Site Reliability Engineer

DevOps Engineer

This course is particularly relevant for DevOps Engineers. The concepts and technologies covered, such as continuous integration, service meshes, and distributed tracing, are DevOps tools used to improve the efficiency and agility of software development and delivery. By taking this course, individuals in this field can strengthen their understanding and enhance their DevOps skillset.

See salaries and explore the career path for DevOps Engineer

Cloud Engineer

Cloud Engineers are in high demand as more companies shift their operations and infrastructure to cloud-based platforms. A firm understanding of container orchestration, service meshes, and cloud-native technologies is essential for Cloud Engineers. By completing this Istio course, you can strengthen your skillset and be prepared to take on advanced roles in cloud engineering.

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Cloud Architect

Cloud Architects are responsible for designing and managing cloud computing systems. This course can be helpful for Cloud Architects who want to gain proficiency in deploying, managing, and troubleshooting Istio in cloud environments. By understanding how Istio can improve cloud service performance, reliability, and security, Cloud Architects can enhance their skills in designing and maintaining scalable and efficient cloud architectures.

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Software Architect

For those interested in the larger scope and design of software systems, progressing into the role of a Software Architect is an excellent next step. Architects play a crucial role in the tech industry, creating software applications and overseeing the work of various engineering departments. The concepts learned in this Istio course, especially around telemetry, can serve as a strong foundation for those who want to excel as a Software Architect.

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Software Development Manager

As a Software Development Manager, you will be responsible for leading and managing software development teams. This course can help those aspiring to enter this role develop a solid understanding of Istio, a crucial technology for managing microservices and distributed systems. By gaining proficiency in Istio's concepts and mechanisms, you can effectively lead teams in adopting and implementing service mesh solutions.

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Solutions Architect

Solutions Architects are responsible for designing and implementing technology solutions that meet the needs of clients. This course can be helpful for Solutions Architects who want to gain familiarity with Istio and its use cases in enterprise environments. By understanding how Istio can help solve common challenges in service-oriented architectures, Solutions Architects can enhance their ability to design and deliver tailored technology solutions to clients.

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Information Security Analyst

Information Security Analysts are responsible for protecting an organization's IT systems and data from security threats. This course can be useful for Information Security Analysts who want to gain familiarity with Istio's security features, such as mutual TLS (mTLS), which is essential for securing microservice communication. By understanding how Istio can enhance security within distributed systems, analysts can strengthen their skills in protecting organizations from cyber threats.

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Network Architect

Network Architects design, implement, and maintain the infrastructure that connects devices, systems, and services. This course can be helpful for Network Architects who want to gain familiarity with Istio's network management capabilities. By understanding how Istio can be used to optimize network performance, manage traffic flow, and provide security, Network Architects can enhance their skills in designing and maintaining robust networks.

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Systems Administrator

Systems Administrators play a vital role in ensuring the smooth operation of IT systems. With a deep understanding of network infrastructure, operating systems, and cloud technologies, Systems Administrators maintain and improve the performance and reliability of systems. This Istio course can be helpful for those looking to specialize in Kubernetes administration and service mesh technologies.

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Technical Support Engineer

Technical Support Engineers provide technical assistance and support to users. This course can be helpful for Technical Support Engineers who want to gain familiarity with troubleshooting and resolving issues related to Istio and Kubernetes. By understanding how Istio works and how to troubleshoot common problems, Technical Support Engineers can enhance their skills in providing efficient and effective support to users.

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Product Manager

For those interested in the intersection of technology and business, a Product Manager role may be a great fit. Product Managers are responsible for defining the vision and roadmap for software products, working with engineering teams to bring products to market. The concepts learned in this course, around service meshes, traffic management, and monitoring, can be useful for Product Managers who want to build a strong understanding of the technical aspects of their products.

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Database Administrator

Database Administrators (DBAs) are responsible for managing and maintaining databases. With a deep understanding of database systems, DBAs ensure data integrity, security, and performance. This course can be helpful for DBAs who want to expand their knowledge into cloud-native technologies and service meshes. By understanding how Istio can be used to manage and monitor database services, DBAs can enhance data management and performance.

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Network Engineer

With a background in computer science principles, a Network Engineer designs, implements, and maintains computer networks within an organization. This course can be helpful for Network Engineers who want to gain familiarity with the Istio service mesh and other topics like distributed tracing, as they would be closely involved in the setup, configuration, and troubleshooting of such systems.

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Data Analyst

Data Analysts are responsible for collecting, analyzing, and interpreting data to extract meaningful insights and patterns. This course can be helpful for Data Analysts who want to gain familiarity with techniques such as distributed tracing and monitoring, which are used for performance analysis and troubleshooting in service mesh architectures.

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