Author: thomassuedbroecker

My name is Thomas Suedbroecker and I work for IBM. I am a customer-oriented, team-oriented and open person, I focus on business success, client's success, innovation and skills. All opinions in my blog posts are my own. My objective is to provide developers help and guides, to enable themself on Cloud development topics and of course the relevant usage of the Development and Operations. I like music and creating own music by playing drums and I started playing the e-guitar (very beginning ;-)).

Access Prometheus queries using the Prometheus HTTP API

In the last long blog post we covered the topic Monitor your custom operator with Prometheus. That means we did a setup of a Prometheus operator and we created a Prometheus service instance. In our operator we registered an example counter called goobers_total at the Prometheus server to monitor the invocations for our controller inside the operator application. Now we want to access the counter information goobers_total by using the Prometheus HTTP API from a local Golang application.

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Monitor your custom operator with Prometheus

hat blog post does focus on a customized monitoring with Prometheus for a custom operator implementation build with the golang Operator SDK. For the monitoring we will use the Prometheus operator. Alain Arom and I inspected that topic and here we show you one example hands-on journey how to get the technical job done. There are a lot of materials out there, but in that blog post we follow an end-to-end scenario for a beginner to intermediate level (without any stop in the middle 😉 of the road). We will only focus on:how it basically works and not why or what we should do in monitoring.

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Add a conversion webhook to an operator to convert API versions

In that blog post we will add a webhook to our existing operator project Multi Tenancy Frontend Operator in the branch update-operator were we created the v2alpha2 API version for the operator in the last blog post "Add a new API version to an existing operator". The final implementation for the current blog post you find in the webhook-gen-operator branch. (details about conversion webhook) Yes, that... Continue Reading →

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Add a new API version to an existing operator

This is my next blog post related to operators. That blog post is about adding a new API version to our existing example Multi Tenancy Frontend Operator. When we have added the new API version we will deploy the changed operator to a Kubernetes cluster using the Operator Lifecycle Manager (OLM).

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Deploy an operator without the Operator SDK

That is the next blog post related to operators. Now it’s about deploy an operator without the Operator SDK. In the last blog post we used the operator-sdk run bundle command which created for us all needed specifications and images to run the bundle. Therefor we need to take a closer look into the Operator Lifecycle Manager (OLM).

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