Blog

Podman: Run container in pods

July 7, 2020

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By Brandon Tsai

A pod is a group of containers that operate together. Podman uses a similar concept to manage a group of containers on a local server. All containers inside the pod share the same network namespace, so they can easily talk to each other over the localhost without the need to export any extra ports.
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Improve Kubectl Command with Krew

July 7, 2020

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By Brandon Tsai

Instead of implementing shell scripts to perform some complex behaviours with kubectl, you can think of installing kubectl plugins to extended kubectl command to achieve custom functionality.
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Kubernetes Resources Management - QoS, Quota, and LimitRange

March 1, 2020

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By Brandon Tsai

The applications were typically run standalone in a VM and use all of the resources. The operators and developers need to choose the size of the VM for running the application. But in Kubernetes, the pods/containers can be running on any machine which requires sharing the resources with others. That is where the QoS (Quality of Service Classes) and Resource Quota comes in.
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Podman - Introduction

Jan. 29, 2020

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By Brandon Tsai

As you may have noticed, Red Hat replaces the docker daemon with CRI-O/podman since RHEL 8. So what is Podman?
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Monitor Kubernetes Apps with Splunk

Jan. 27, 2020

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By Brandon Tsai

Some companies use Splunk as the logging platform to store and to aggregate the logs for all their environments. This post explains how to integrate Splunk with Kubernetes using the Splunk-connect-for-kubernetes helm charts.
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Protecht UK - Protecht.ERM on AWS

Sept. 24, 2019

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By Felix Schmitz

Protecht.ERM™, Protecht’s flagship product, has been deployed in a SaaS model since development commenced in 2002 and remains ahead of the curve on innovation and functionality. Protecht has recently expanded into the UK and chosen AWS to deploy Protecht.ERM in the London region. Darumatic got engaged to assist with the automated provisioning of AWS infrastructure as well as the application deployment.
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Autoscaling Kubernetes Applications

April 13, 2018

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By Adrián Deccico

The hug of death is caused when someone posts a link to a website, for example, the press, saying "Hey everyone, look at this website!" and everyone does. This puts so much traffic on the site in question's servers that they get overloaded and crash. In this document I will explain how to setup pod auto-scaling as per Kubernetes 1.7.
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Securing Docker & Kubernetes

July 25, 2017

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By Peter Schlesinger

A good level of “built in” security is an inherent benefit of using container technology. This doesn’t mean that relying on a default installation of these components will provide an adequate level of security in itself or that you can absolve yourself from thinking about security.
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Installing Kubernetes on the cloud - Lessons learnt

June 19, 2017

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By Adrián Deccico

Getting Kubernetes up and running is not a minor achievement. In this post, I compare the main Kubernetes installers for each major cloud. I will give you advise and show some commands on how to get Kubernetes running. It is not my intention to write detailed instructions but rather to give you an idea of what to expect for each installer method.
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Kubernetes Services

May 18, 2017

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By Adrián Deccico

Containers are now disrupting the DevOps space with a new productivity jump. But changing your software to take advantage of this new technology is definitely not trivial. How can you manage containers all the way to production? The answer: With Kubernetes containers orchestration.
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