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Quotas, limits and limit-ranges

In this post we will be diving in to quotas and limits. Quotas and limits can be used to allocate, limit en reserve resources within your cluster for one or multiple namepaces and can limit the usage of CPU and Memory for workloads. Limits can also be used to gurante (by reserving) resources for your workloads. Understanding and using quotas and...

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Creating and Using Secrets in OpenShift

Creating Secrets (like creating ConfigMaps) is a vital part of Managing OpenShift workloads and is an exam objectives of the EX280 exam. Knowing how they work and how to configure them (from the command-line) will give you a better understanding of Secrets. Secrets, how do they work Secrets provide information (like config files or credentials)...

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Creating my EX280 page on Jekyll

As you might have notices I use Jekyll for this blog hosted on GitHub. I might do a post later on how I use it and how I set it up. For now, all you need to know is that Jekyll turns .md(markdown) file in to a blog. This happens using GitHub actions and builds my blog from source when I commit to main. Jekyll support some dynamic code to genera...

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ConfigMaps - Setting ConfigMaps from the oc CLI

While preparing for EX280 I learned a lot about using the CLI to configure Openshift resources. It’s always great learning to configure this stuff from the CLI because it gives you so much power and (In my opinion) a lot more understanding about how things work because you need to viluazie what you are doing in your head. Also: “Writing is think...

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Installing vim-plug on macOS

vim-plug is a VIM plug-in manager to install themes and other plug-ins in VIM. It’s the most populair one at the moment. Installation To install vim-plug you can go over to https://github.com/junegunn/vim-plug and run the following command: $ curl -fLo ~/.vim/autoload/plug.vim --create-dirs \ https://raw.githubusercontent.com/junegunn/vim-p...

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