Articles

Wireless motion sensor

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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.
ElectronicsProjectsArduino

Creating a private docker registry for Kubernetes

A docker registry can be run easily using as a docker container using docker itself.
DevOpsKubernetesDocker

Bash check if environment variable is set

When writing bash scripts, it is sometimes necessary to check if an environment bariable is set.
Bash

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>.
TutorialsSecurityKubernetes

Reducing GitLab memory consumption

The memory consumption of GitLab can be reduced slightly by turning prometheus monitoring off:
GitLab

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.
KubernetesMicrok8s

Generic Kubernetes manifest for web application deployment

Deployment name, container registry and service port are externalized, making this manifest general-purpose
KubernetesDevOps

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.
KubernetesCI/CDDevOps

Fixed asset management system

Fixed asset management system thumbnail
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.
Node.jsWebProjectsMongoDB

Image upload microservice

Image upload microservice thumbnail
An image is worth a thousand words and probably even more if comparing their size in bytes. When designing my CMS, I originally intended to store images directly in the article, encoded in Base64. However, this would considerably increase the size of each article, making the whole CMS slow.
WebWIPNode.jsMongoDBProjects +1