infrastructure

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Some notes on OpenWrt

What is OpenWrt? I pronounce it as "Open Wart" but I digress and the notes haven't even begun. It is a Linux(-based), open source operating system for embedded devices but it's most use if found in your routers. If you want your router to have an open source and free op…

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man7.org Linux training and Google cloud virtual machines

I had the privilege to attend a week-long training by Michael Kerrisk on "System Programming for Liunux Containers". If you are interested in Linux deep-dive, I cannot recommend anyone more than Michael. I have been waiting for his training for about four years and it f…

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AWS load balancers and instance health checks with terraform

Auto Scaling Group (ASG) is an AWS feature that allows you to manage the size of a cluster (group) of similar instances. You can create an ASG with a minimum number and maximum number of the instances of a particular image. In other words, a group of instances that scale automati…

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Terraform and YAML related notes

If you manage applications, you likely come across a ton of structured data that stays mostly static but must be tracked, version-controlled and be visible, especially when someone modifies it. For some folks, that is a CMS, for others a stack of papyri and for some more it is ju…