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Kubernetes (commonly stylized as k8s) is an open-source container-orchestration system for automating application deployment, scaling, and management. It aims to provide a platform for automating deployment, scaling, and operations of application containers across clusters of hosts. It works with a range of container tools, including Docker.

Learn more. 

The IKO allows for sidecars. The idea behind them is to have direct access to a specific instance of IRIS. If we have mirrored data nodes, the web gateway will (correctly) only give us access to the primary node. But perhaps we need access to a specific instance. The sidecar is the solution.

Building on the example from the previous article, we introduce the sidecar by using a mirrored data node and of course arbiter.

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Hey Community,

Enjoy the new video on InterSystems Developers YouTube:

⏯ Containers & Kubernetes - Proper Use and Lessons Learned @ Global Summit 2024

https://www.youtube.com/embed/GUbe6Iwt9T4
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Announcement
· Jan 12, 2022
New Kubernetes Exercise!

Hi All! For those of you who attended experience labs at the 2021 Virtual Summit, you may recall that one of the lab sessions was around Kubernetes. We've now converted that lab to be fully on-demand. You can launch a small cluster of VMs and follow the exercise to manage your Kubernetes cluster, deploy InterSystems IRIS containers to it, and watch its self-healing nature when destroying a pod.

It's a great introduction to Kubernetes if you are interested! See here: Achieving High Availability with InterSystems IRIS and Kubernetes

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The IKO will dynamically provision storage in the form of persistent volumes and pods will claim them via persistent volume claims.

But storage can come in different shapes and sizes. The blueprint to the details about the persistent volumes comes in the form of the storage class.

This raises the question: we've deployed the IrisCluster, and haven't specified a storage class yet. So what's going on?

You'll notice that with a simple

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Hey Developers,

Watch as the presenter uses IKO to deploy the WebGateway, SAM, and InterSystems API Manager with the latest version of the InterSystems Kubernetes Operator:

⏯ IKO: The InterSystems Kubernetes Operator (Version 3.0)

https://www.youtube.com/embed/KRUMYz6eGhE
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Hi Developers,

The new video from Global Summit 2019 is already on InterSystems Developers YouTube:

⏯ Introduction to Kubernetes

https://www.youtube.com/embed/8YeReJK4JtE
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Article
· Mar 25, 2024 7m read
Introduction to Kubernetes

In this article, we will cover below topics:

  • What is Kubernetes?
  • Main Kubernetes (K8s) Components


What is Kubernetes?

Kubernetes is an open-source container orchestration framework developed by Google. In essence, it controls container speed and helps you manage applications consisting of multiple containers. Additionally, it allows you to operate them in different environments, e.g., physical machines, virtual machines, Cloud environments, or even hybrid deployment environments.

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The InterSystems Kubernetes Operation (IKO) version 3.3 is now available via the WRC download page and the InterSystems Container Registry.

IKO simplifies working with InterSystems IRIS or InterSystems IRIS for Health in Kubernetes by providing an easy-to-use irisCluster resource definition. See the documentation for a full list of features, including easy sharding, mirroring, and configuration of ECP.

IKO 3.3 Highlights:

  • Support for 2021.2 and 2022.1 editions of InterSystems IRIS & IRIS for Health
  • Support for Kuberentes 1.21
  • Deploy common System Alerting and Monitoring (SAM) configurations as part of your irisCluster
  • InterSystems API Manager (IAM) can now also be deployed and managed as part of the irisCluster
  • Automatic tagging of mirror pair active side, so a service can always point to the active mirror member.
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Hi Community,

Play the new video on InterSystems Developers YouTube:

⏯ Introducing Smart Data Services @ Global Summit 2023

https://www.youtube.com/embed/8ZQf5m0HA5w
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In our previous article, we have explored the most common Kubernetes components:

  • We started with the pods and the services we needed to communicate with each other.
  • Then, we examined the Ingress component used to Route traffic into the cluster.
  • We also skimmed through an external configuration using ConfigMaps and Secrets.
  • Afterward, we analyzed Data persistence with the help of Volumes.
  • Finally, we took a quick look at pod blueprints with such replicating mechanisms as Deployments and StatefulSets (the latter is employed specifically for such stateful applications as databases).

In this article, we will explore Kubernetes architecture and configuration.

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Hi Community,

Please welcome the new video on InterSystems Developers YouTube:

⏯ Deploying InterSystems IRIS Solutions into Kubernetes Google Cloud

https://www.youtube.com/embed/GrRqrn6eq1c
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Announcement
· Oct 15, 2022
[Video] Kubernetes Overview

Hey Developers,

In this video you will learn what Kubernetes is and how it can be beneficial for deploying containerized application workloads:

⏯ Kubernetes Overview

https://www.youtube.com/embed/I0v18w9Y4X0
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I attended Cloud Native Security Con in Seattle with full intention of crushing OTEL day, then perusing the subject of security applied to Cloud Native workloads the following days leading up to CTF as a professional excercise. This was happily upended by a new understanding of eBPF, which got my screens, career, workloads, and atitude a much needed upgrade with new approaches to solving workload problems.

So I made it to the eBPF party and have been attending clinic after clinic on the subject ever since, here I would like to "unbox" eBPF as a technical solution, mapped directly to what we do in practice (even if its a bit off), and step through eBPF through my experimentation on supporting InterSystems IRIS Workloads, particularly on Kubernetes, but not necessarily void on standalone workloads.

eBee Steps with eBPF and InterSystems IRIS Workloads

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Some of you on the Developer Community have probably interacted with @Luca Ravazzolo if you are interested in cloud and container topics... If so, you'll enjoy Episode 2 of our new podcast — we chatted with Luca about Kubernetes and the InterSystems Kubernetes Operator. He does a great job of explaining the technology and its benefits here!

https://5e18edf067eb59-03854285.castos.com/player/147141
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So if you are following from the previous post or dropping in now, let's segway to the world of eBPF applications and take a look at Parca, which builds on our brief investigation of performance bottlenecks using eBPF, but puts a killer app on top of your cluster to monitor all your iris workloads, continually, cluster wide!

Continous Profiling with Parca, IRIS Workloads Cluster Wide

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