Can a Kubernetes cluster be built using Raspberry Pis? Yes, it can. The Raspberry Pi is a fantastic computer and I've used it in a variety of projects to assist with me learning more. Over the summer (2020) I used an Ansible playbook created by Jeff Geerling to briefly create a small Pi Kubernetes cluster, … Continue reading Kubernetes Cluster On Raspberry Pi
Author: Geek_Dude
I'm a tech enthusiast that enjoys science, science fiction, comics and video games - pretty much anything geeky.
Raspberry Pi DHCP Server (Linux / Raspberry Pi)
Previously I have connected my Raspberry Pi devices to my home wi-fi and that raised the question, could I have my own home dev network which would keep my Pi devices away from my home network? I disconnected the Raspberry Pi boards from their various locations in the house, grabbed a desktop switch, some ethernet … Continue reading Raspberry Pi DHCP Server (Linux / Raspberry Pi)
BBC micro:bit Discovery Kit
GeekTechV2 has started to learn about electronics and circuits. To assist with this we have got the BBC micro:bit (https://microbit.org) out and purchased a Discovery Kit (https://thepihut.com/collections/new-products-micro-bit-store/products/discovery-kit-for-the-bbc-micro-bit). With the two products GeekTechV2 can build circuits and program the micro:bit so that he can interact with them. GeekTechV2 is using a micro:bit version 1 as we … Continue reading BBC micro:bit Discovery Kit
Credit Card Number Checker (JavaScript)
Credit card details are frequently used online and you may be wondering how a website checks if a card number is legitimate or not. During my CodeAcademy “Back-End Engineer” I have tackled the Credit Card Checker project which involves using the Luhn algorithm to check credit card numbers. Quoting Wikipedia (https://en.wikipedia.org/wiki/Luhn_algorithm#Description): “Each of the numbers … Continue reading Credit Card Number Checker (JavaScript)
30 Day Coding Challenge & Personal Update 2020
I live in a part of the UK that has been under restrictions since March (with a few unrestricted weeks at the beginning of Summer) due to Coronavirus. When October kicked in my mood went a little bit bleaker as the light summer months had been and gone, darker days where setting in and sadly … Continue reading 30 Day Coding Challenge & Personal Update 2020
The DRY principle: Ansible and variables
One of the frequent teachings I have learned whilst learning programming languages is that repeated blocks of code should be, where possible, placed into a function so that the function can be called multiple times instead of writing out the code multiple times. This approach as the benefits of: Producing repeatable resultsReducing the chances of … Continue reading The DRY principle: Ansible and variables
Hacktoberfest 2020
It's October 2020 and time for the 7th Hacktoberfest. Between the 1st October and 31st October Hacktoberfest encourages anyone from developers, to students to those that just want to give Git a shot, to complete some Git pull requests and help out with public repositories on GitHub. I've not taken part in previous years but … Continue reading Hacktoberfest 2020
Terraform – States, Locks & Team Work
Terraform can create, modify and destroy infrastructure, and with my last blog post I've seen that it can run Ansible to configure the infrastructure that it creates. So far, so good but what if multiple people work on the same project with each trying to adjust code at the same time? Eek, probably lots of … Continue reading Terraform – States, Locks & Team Work
Terraform – Security Groups, Provisioners and Ansible
My previous blog posts looked at what Terraform is and also how to deploy an AWS EC2 instance with Terraform. In this blog post I am going to alter my main.tf file so that Terraform also creates a new AWS security group with some ingress rules and also runs an Ansible playbook against the new … Continue reading Terraform – Security Groups, Provisioners and Ansible
Terraform – Introduction: TF files / First Run
Following on from my previous blog post which looked at installing Terraform, I am now going to look at using Terraform to deploy an AWS EC2 instance. Terraform uses Infrastructure as Code (IaC) and so it needs a terraform file containing the details of what the expected infrastructure should be. Note: To follow along with … Continue reading Terraform – Introduction: TF files / First Run
