~ koper.dev

#Ansible

2 posts · all tags

Git knows the name, OpenBao knows the value

· by Robin Koper · 19 min read · #Openbao #Secrets #Kubernetes #External-Secrets #Ansible #Talos #Homelab

My Kubernetes Secrets were made by hand with kubectl, and my Ansible repo carried passwords in plain text. Over two days they all moved into OpenBao. Git now says which secrets exist; OpenBao holds the values, audits every read, and nothing restarted on the way. This is the long version: the design, the four plans, the migration waves, and everything that bit me.

Checkmk out, Prometheus in: a homelab monitoring migration in three slices

· by Robin Koper · 8 min read · #Prometheus #Monitoring #Checkmk #Kubernetes #Ansible #Alertmanager #Homelab

The Kubernetes cluster already ran kube-prometheus-stack. Two Checkmk VMs watched everything else. Over two days I moved hosts, websites and services into the one stack, in three slices, and then switched Checkmk off. Here is the plan, the tricks, and the list of things that went wrong.