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If you need to target a specific k8s node in the cluster, you can use labels. You want to treat your nodes as much like cattle as you can, but sometimes budgets get in the way. You might be like me and just run any free hardware you can get in your cluster, or you might have some large storage or gpu needs that you can’t afford to put on every node in the cluster.

kubectl get nodes --show-labels

# add the bigpool label
kubectl label node k8s-1 bigpool=true
kubectl get nodes --show-labels

# remove the bigpool label
kubectl label node k8s-1 bigpool-

To use the label in a pod set spec.nodeSelector to the label that you applied.

apiVersion: v1
kind: Pod
metadata:
  name: busybox
spec:
  containers:
  - name: busybox
    image: busybox
  nodeSelector:
    bigpool: "true"

I’m currently [[replacing-google-search-apps-with-self-hosted-web-apps]] and decided to create a simple b64 encoder/decoder, just start typing to enter text, escape to deselect, then e/d to encode/decode.

I’m trying to make these apps super simple, self hosted out of minio, static html, and javascript. It’s been fun to get back to some simple interactive web development like this. No build just a website that does something. No broken builds, no containers to deploy, just push to minio.

encoded = btoa(content);
decoded = atob(encoded);

Here is the result.

I’m trying to replace my usage of google inline search apps with real apps, today I used a stopwatch to time some things out at work by opening stopwatch. This was something I just wanted running in a tab on another screen, it was not timing running code or anything, I was using it as a reminder to check browser caches every 5 minutes or so for some testing.

So tonight I whipped up a stopwatch, clock and timer, all of which are using the wakelock API to keep the screen on while the app is running.

    // Wake Lock support
    let wakeLock = null;
    async function requestWakeLock() {
      try {
        if ('wakeLock' in navigator) {
          wakeLock = await navigator.wakeLock.request('screen');
          console.log("Wake lock acquired");
        }
      } catch (err) {
        console.error("Wake lock error:", err);
      }
    }

    document.addEventListener("visibilitychange", () => {
      if (wakeLock !== null && document.visibilityState === "visible") {
        requestWakeLock();
      }
    });

    requestWakeLock();

I’ve been working on ninesui, inspired by k9s see thoughts-633. I want a good flow for making video for the readme and I am using charm.sh’s vhs for this. Its running in an archBTW distrobox and looks gawdaweful.

The over saturated colors give it a really retro look, seems fine, but not my cup of tea. I tried to change the textual theme to tokyo-night and it might have made it a bit better, but still over-saturated.

After #

What I found is that vhs has themes, setting it to dracula made everything much better.

# sort.tape
Output assets/sort.mp4
Output assets/sort.gif

Require echo

Set Shell "bash"
Set FontSize 32
Set Width 1920
Set Height 1080
+ Set Theme 'Dracula'

NinesUI #

I’m using these in my ninesui project, right now they are in the readme, but maybe some docs will grow eventually. Right now its hardcore explore phase.

I’m trying to learn proper logs, monitoring, otel, and grafana. Today I imported a bunch of pre-made k8s dashboards and made a few of my own for specific apps, and it made me want to know how I can turn my own custom dashboards into infrastructure as code. Turns out grafana makes it pretty easy to do this, if you have the grafana dashboard sidecar running. It will pick up any ConfigMap with the grafana_dashboard label and import it.

Go to Dashboards -> Pick a Dashboard -> Export -> JSON.

apiVersion: v1
kind: ConfigMap
metadata:
  name: my-dashboard
  namespace: meta
  labels:
    grafana_dashboard: "1"
data:
  my-dashboard.json: |
    {
      "annotations": {
        "list": [
      ...
      "uid": "fel2uhjhepg5ce",
      "version": 3
    }