linux, devops, sre, cloud, virtualization, containers, performance tunning, golang…
https version
Proudly announce switching blog from http to https.
viddy - replacement for watch command
Viddy is feature rich fully replacement for watch. Until I found this tool, I was wondered how new version of watch should look like.
cii - container image info
More on cii
Notes about buildkit
I have recently discovered tool called Rancher Desktop. It’s alternative to Docker Desktop solution.
image-history - get remote container image history
Migrated from image-history to cii.
Linux PSI monitoring
As I mentioned before linux psi metrics are exposed in cgroup v2 hierarchy.
Linux PSI
From performance perspective one of the simplest question is how well your system is handling current load ?
How to match host process pid with pod name ?
When you identify from host perspective the most CPU intensive task you may wonder how to match it with pod name ?
Podinfo
Couple days ago I was looking for that tool, but I haven’t bookmarked it.
Kubernetes - RBAC users and groups
RBAC model for Kubernetes assumes existing of: service accounts users groups when you define RoleBinding and ClusterRoleBinding you are pointing them into Subject.