Network & security blog

Rails 7: Optimised Container Images


Rails container images can easily be one gigabyte or more in size. This is very wasteful in terms of storage space, both in your registry, on your deployment target, or development machine. But it also slows down your deployments, when the image needs to be pulled first. If you are using a different image for development, you may have struggled with slow startup times of your development environment. Gems need to be fetched and rebuilt.…
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Kubernetes: Set Up Authentication for Cluster Admin


This guide runs you through the steps necessary to get going with a Kubernetes cluster. We will cover the following tasks: Creating a user Granting cluster-admin privileges to that user Setting up a kubectl client to work with the new credentials The first two steps assume that you have a working kubectl client with cluster-admin privileges. I know this may put you into some kind of bootstrapping issue.…
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