My professional day-to-day role sees me administrating Windows OS based systems using Microsoft System Centre Configuration Manager (SCCM) and Active Directory/Group Policy. Knowing what tools are available to manage so many Windows systems at once I’m looking for something similar to manage several Raspberry Pi (Linux) systems at once. Previously I have looked at network … Continue reading Installing Ansible (Raspberry Pi)
Thinking of the term Rubber Duck brings my mind to two things, Ernie from Sesame Street singing in the bath and the USB Rubber Ducky that looks like a regular USB pen drive but does a lot more. So what’s Rubber Duck Debugging and does it involve singing in the bath? When writing code for … Continue reading Rubber Duck Debugging / Rubber Ducking (DevOps)
The Open Web Application Security Project (OWASP) provides a top ten security risks in web applications at https://owasp.org/www-project-top-ten/ . The ranking of risks can help developers (and organisations) make their applications more secure. The 2021 OWASP Top Ten Broken Access Control Cryptographic Failures Injection Insecure Design Security Misconfiguration Vulnerable and Outdated Components Identification and Authentication … Continue reading Security: OWASP Top Ten (Notes)
Changing Azure Subscriptions In part 1 I discussed logging into Azure using Azure CLI and noting the default subscription, as that is where Terraform will deploy resources to. However, you may have multiple Azure subscriptions and want to deploy to one that is not the default. This can be accomplished using the Azure CLI: This … Continue reading Terraform and Azure (Infrastructure as Code) – Part 2
In a DevOps sense, “cattle not pets” means creating services and / or infrastructure that can be maintained, destroyed and re-deployed with little human interaction. Why Cattle Not Pets? Imagine the scenario: As a tech user, IT professional or engineer you may find yourself in charge of looking after a particular piece of technology (e.g. … Continue reading DevOps: What Does Cattle Not Pets Mean?
I’ve written blog posts on how to install Grafana and data exporters using Ansible (https://geektechstuff.com/2020/06/25/grafana-prometheus-and-node-exporter-on-raspberry-pi-via-ansible-raspberry-pi-and-linux/) and a blog post on adding users to Grafana using an API call (https://geektechstuff.com/2021/01/06/using-an-api-call-to-make-multiple-grafana-users-python/), but after re-reading my blog posts I decided to automate the process (previously a manual step in the Ansible post) of adding data sources. I have … Continue reading Grafana – Using An API Call To Add DataSources (Python)
A little while ago I looked at using Grafana on a Raspberry Pi ( https://geektechstuff.com/2020/06/25/grafana-prometheus-and-node-exporter-on-raspberry-pi-via-ansible-raspberry-pi-and-linux/ ), today I created a quick Python script to create new Grafana user accounts using the Grafana API. Why Use The API? Grafana does have a graphical web based interface for creating users, and if creating a single user account … Continue reading Using An API Call To Make Multiple Grafana Users (Python)
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
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
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
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