operator-sdk

Deploying Kubernetes Operators with Operator Lifecycle Manager bundles

Deploying Kubernetes Operators with Operator Lifecycle Manager bundles

This article shows an example of using the Operator Lifecycle Manager (OLM) bundle deployment architecture to deploy a Red Hat OpenShift or other Kubernetes Operator. You will learn how to use OLM and the Operator SDK (both components of the Kubernetes Operator Framework) together to deploy an Operator.

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Create a Kubernetes Operator in Golang to automatically manage a simple, stateful application

Create a Kubernetes Operator in Golang to automatically manage a simple, stateful application

A Kubernetes Operator acts as an automated site reliability engineer for its application, encoding the skills of an expert administrator in software. For example, an Operator can manage a cluster of database servers and configure and manage its application. It can also install a database cluster of a declared software version and a designated number of members.

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5 tips for developing Kubernetes Operators with the new Operator SDK

5 tips for developing Kubernetes Operators with the new Operator SDK

Kubernetes Operators are all the rage this season, and the fame is well deserved. Operators are evolving from being used primarily by technical-infrastructure gurus to becoming more mainstream, Kubernetes-native tools for managing complex applications. Kubernetes Operators today are important for cluster administrators and ISV providers, and also for custom applications developed in house. They provide the base for a standardized operational model that is similar to what cloud providers offer. Operators also open the door to fully portable workloads and services on Kubernetes.

The new Kubernetes Operator Framework is an open source toolkit that lets you manage Kubernetes Operators in an effective, automated, and scalable way. The Operator Framework consists of three components: the Operator SDK, the Operator Lifecycle Manager, and OperatorHub. In this article, I introduce tips and tricks for working with the Operator SDK. The Operator SDK 1.0.0 release shipped in mid-August, so it’s a great time to have a look at it.

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Operator SDK: Build Kubernetes Operators and deploy them on OpenShift

Operator SDK: Build Kubernetes Operators and deploy them on OpenShift

The Operator SDK makes it simple to build Kubernetes-native applications, providing the tools to build, test, and package Operators. The SDK also helps the developer to build Operators without requiring knowledge of Kubernetes API complexities.

In this article, we will create a sample Operator for deploying a sample application based on Spring Boot and Camel. This application is a simple Camel route that uses the undertow component. After building the Operator, we will deploy it on an OpenShift cluster.

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How to use third-party APIs in Operator SDK projects

How to use third-party APIs in Operator SDK projects

The Operator Framework is an open source toolkit for managing Kubernetes-native applications. This framework and its features provide the ability to develop tools that simplify complexities, such as installing, configuring, managing, and packaging applications on Kubernetes and Red Hat OpenShift. In this article, we show how to use third-party APIs in Operator-SDK projects.

In projects built with Operator-SDK, only the Kubernetes API schemas are added by default. However, you might need to create, read, update, or delete a resource that is from another API—even one that you created yourself via other Operator projects.

Let’s check out an example scenario: How to create a Route resource from the OpenShift API for an Operator-SDK project.

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