Small technical observations, operational footguns, and things worth getting out of your head quickly.
April 7, 2026
If the goal is learning or getting a first signal quickly, tracepoints are often the cleaner entry point than kprobes. The interface is more stable, you spend less time chasing symbol details, and you still get a lot of practical observability value.
April 3, 2026
The short-form lane exists for useful operational fragments. If your pod mounts a ConfigMap as a volume, kubelet refresh is not an immediate push path. There is a sync period and cache behavior in play, so a change may take longer than you intuitively expect.