Articles
APIs: Why and how
From a simplistic point of view, software can be seen as a combination of operations performed on data. Data comes in, gets processed through a series of functions and some result comes out.
Wireless motion sensor
This is a wireless motion sensor that runs on rechargeable batteries. It can be deployed anywhere and sends a signal using an NRF24L01 wirless module whenever it detects motion.
Creating a private docker registry for Kubernetes
A docker registry can be run easily using as a docker container using docker itself.
Bash check if environment variable is set
When writing bash scripts, it is sometimes necessary to check if an environment bariable is set.
Securing an ingress with basic auth
This article describes how to use basic auth to protect an ingress in Kuberentes. It it <a href="https://kubernetes.github.io/ingress-nginx/examples/auth/basic/" rel="noopener noreferrer nofollow">based on this page</a>.
Reducing GitLab memory consumption
The memory consumption of GitLab can be reduced slightly by turning prometheus monitoring off:
Microk8s manage SSL certificates DNS entries
Microk8s provides settings to add a custom domain to its DNS settings. This article presents how to do so.
Generic Kubernetes manifest for web application deployment
Deployment name, container registry and service port are externalized, making this manifest general-purpose
Passing variables to Kubernetes manifest
When using kubectl apply, environment variables in Kubernetes manifests are not parsed. For this to happen, the envsubst command can be used.
Fixed asset management system
Many companies rely on spreadsheets to keep track of their fixed assets. However, spreadsheets are commonly designed to be edited manually, which makes automation difficult.