Service Mesh

Red Hat Summit: Containers, Microservices, and Serverless Computing

Red Hat Summit: Containers, Microservices, and Serverless Computing

dtidwell
By Doug Tidwell

You’re in an IT department. How does the rest of the organization see you? As a valuable asset whose code and APIs make a difference in the marketplace, or as a necessary evil that should be trimmed as much as possible? Containers, microservices, and serverless computing can make you more responsive, flexible, and competitive, which in turn makes your organization more effective. And that puts you solidly in the asset column.

After sprinting through the streets of San Francisco from the stage of the opening keynote at Red Hat Summit 2018 (replay available here), Burr Sutter hosted a packed house in Moscone South to talk about these technologies. Containers are widely accepted (see the announcement from Red Hat and Microsoft for an example), microservices are increasingly popular as an approach to modernizing monolithic applications, and serverless computing is emerging as an important new programming model.

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Getting Started with Istio and Jaeger on Your Laptop

Getting Started with Istio and Jaeger on Your Laptop

ssadeghi
By Siamak Sadeghianfar

[Cross posted from the OpenShift blog]

About a year ago Red Hat announced its participation as a launch partner of the Istio project, a service mesh technology that creates an application focused network that transparently protects the applications from abnormalities in environments. The main goals of Istio are enhancing overall application security and availability through many different capabilities such as intelligent routing, circuit breaking, mutual TLS, rating, and limiting among others. Ultimately Istio is about helping organizations develop and deploy resilient, secure applications and services using advanced design and deployment patterns that are baked into the platform.

As part of our investments in making the technology easily consumable to Kubernetes and OpenShift users, Red Hat has created a ton of content:

  • learn.openshift.com: A web-based OpenShift and Kubernetes learning environment where users get to interact through the web browser with a real running instance of OpenShift and Istio service mesh with zero install time and no sign-up required.
  • Istio tutorial: Want to try the web-based scenario yourself from scratch? This Git repo contains instructions on how to set up an environment for yourself.
  • Introducing Istio Service Mesh for Microservices book by Christian Posta and Burr Sutter
  • Blog posts on the OpenShift and Red Hat Developer blogs

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Istio Service Mesh Blog Series Recap

Istio Service Mesh Blog Series Recap

donschenck
By Don Schenck

The past nine weeks of blog posts have introduced, explained, and demonstrated some of the many features of the Istio service mesh when combined it is with Red Hat OpenShift and Kubernetes. This, the final post in this series, is a recap.

[This is part ten of my ten-part Introduction to Istio Service Mesh series. My previous article was Part 9: Istio Egress: Exit Through the Gift Shop.]

Week one was an introduction to the concept of a service mesh. The concept of a Kubernetes sidecar container was explained and diagrammed, and it was the beginning of a constant theme throughout the blog posts: You don’t have to change your source code.

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Istio Egress: Exit Through the Gift Shop

Istio Egress: Exit Through the Gift Shop

donschenck
By Don Schenck

Using Istio with Red Hat OpenShift and Kubernetes makes life with microservices easier. Tucked away inside of Kubernetes pods, using the Istio service mesh, your code can run (mostly) in isolation. Performance, ease-of-changes, tracing, and so on are made available by simply using the Istio sidecar container model. But what if you want your microservice to talk to another service that is outside of your OpenShift/Kubernetes/pods environment?

Enter Istio Egress.

[This is part nine of my ten-part Introduction to Istio Service Mesh series. My previous article was Part 8: Istio Smart Canary Launch: Easing into Production.]

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Introducing Istio Service Mesh for Microservices from O’Reilly Book Release

Introducing Istio Service Mesh for Microservices from O’Reilly Book Release

cepostaburrsutter
By Christian Posta and Burr Sutter

Burr Sutter (@burrsutter) and I (@christianposta) have finished writing a book called Introducing Istio Service Mesh for Microservices to help folks get up and running with Istio.io service mesh!

Book Cover

Many many thanks to all of the reviewers who took the time to give feedback and to Red Hat for sponsoring my time—especially Burr Sutter and the talented folks at O’Reilly who helped coordinate the effort and make it come to fruition.

Download the Istio Service Mesh for Microservices e-book from O’Reilly

The book covers the following topics:

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Istio Smart Canary Launch: Easing Into Production

Istio Smart Canary Launch: Easing Into Production

donschenck
By Don Schenck

First to fall over when the atmosphere is less than perfect

Your sensibilities are shaken by the slightest defect

You live your life like a canary in a coalmine…

When Sting and The Police sang those lyrics, I doubt they had microservices, Istio, Kubernetes, and OpenShift in mind. Yet here we are, years later, using the Canary Deployment pattern to ease code into production.

[This is part eight of my ten-week Introduction to Istio Service Mesh series.  My previous article was Part 7: Istio Dark Launch: Secret Services.]

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Istio Dark Launch: Secret Services

Istio Dark Launch: Secret Services

donschenck
By Don Schenck

“Danger is my middle name” is great for spies and people of mystery, but when it comes to deploying software, boring is better. By using Istio with OpenShift and Kubernetes to ease your microservices into production, you can make deployment really, really boring. That’s good.

[This is part seven of my ten-week  Introduction to Istio Service Mesh series series about Istio, Service Mesh, Red hat OpenShift, and Kubernetes. My previous article was Part 6: Istio Chaos Engineering: I Meant to Do That.]

Boring Is Good

Not to worry, dear DevOps person; there are some exciting things in store for you. It’s just that the end result, thankfully, is boring. You want the fun of setting things in motion and then the routine of watching it just work.

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Bringing Coolstore Microservices to the Service Mesh: Part 2–Manual Injection

Bringing Coolstore Microservices to the Service Mesh: Part 2–Manual Injection

jamesfalkner0
By James Falkner

Coolstore+Istio Logo

In the first part of this series we explored the Istio project and how Red Hat is committed to and actively involved in the project and working to integrate it into Kubernetes and OpenShift to bring the benefits of a service mesh to our customers and the wider communities involved. If you want to play with Istio, check out the service mesh tutorials on learn.openshift.com. If you want to install it, follow the Istio Kubernetes quickstart instructions and install it on OpenShift 3.7 or later. Also don’t miss Don Schenck’s series of blogs on Istio technology in general to learn more about it and what Red Hat is doing in this space.

In this post, we will deploy the existing Coolstore microservices demo as a service mesh and start to demonstrate the tangible value you can get out of the system without any major rewrite or rearchitecture of the existing app. We’ll also improve our project along the way to adhere to Istio (and general microservice) best practices. In the real world, your applications and developers often make bad assumptions or fail to implement best practices, so with this information you can learn something about your own projects. For Coolstore, many of these workarounds will eventually find their way into the source code of the demo.

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Bringing Coolstore Microservices to the Service Mesh: Part 1 – Exploring Auto-injection

Bringing Coolstore Microservices to the Service Mesh: Part 1 – Exploring Auto-injection

jamesfalkner0
By James Falkner

As the industry heads toward the Trough of Disillusionment with cloud-native microservices, finally understanding that distributed architectures introduce more complexity (weird, right?), services meshes can help soften the landing and shift some of that complexity out of our applications and place it where it belongs, in the application operational layer.

At Red Hat we are committed to (and actively involved in) the upstream Istio project and working to integrate it into Kubernetes and Red Hat OpenShift to bring the benefits of a service mesh to our customers and the wider communities involved. If you want to play with Istio, check out the Service Mesh Tutorials on learn.Openshift.com. If you want to install it, follow the Istio Kubernetes quickstart instructions and install it on Red Hat OpenShift 3.7 or later (or 3.9 if you want to use auto-injection).

Continue reading “Bringing Coolstore Microservices to the Service Mesh: Part 1 – Exploring Auto-injection”

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