Building a custom OKD Machine OS image
A step-by-step guide for building a Fedora CoreOS-based image for use with the OpenShift Machine Operator.
List all failed Pods in a namespace with kubectl
How to correctly list all running and failed Pods in a Kubernetes namespace with kubectl.
The Archipelago Trail
A 200 kilometer bicycle tour across the many islands in front of Turku, Finland. GPX track available as download.
Helsinki Sunday Bike Trip
A beautiful cycling tour passing by Helsinki's tourist attractions and peaceful suburbs, suitable for any fitness level. GPX track available as download.
Restic Backups with systemd and Prometheus exporter
My workflow for making fast and efficient offsite backups with restic, systemd, some shell scripting and a Prometheus exporter
Recommended talks from KubeCon EU 2021
A selection of highly recommended presentations from KubeCon + CloudNativeCon EU 2021
Using OverlayFS for project work with copy-on-write
How I use OverlayFS mounts to track changes in non-VCS projects and leverage its copy-on-write (COW) capabilities.
Namespace-scoped Kubernetes Service Discovery for Prometheus
How to set up ServiceAccount, Role, RoleBinding and configure Prometheus to only discover scraping targets from the local Kubernetes namespace.
The ideal Dockerfile for a minimal Go container image
My Dockerfile template for a Go application based on a 'FROM scratch' minimal image, statically-compiled binary and application running as non-root (rootless).
Analyzing job durations of systemd services
A small Python helper script to parse and analyze the execution time of systemd job services.