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Create a k8s operator #24

Description

@ccrawford4

some fun ideas from ChatGPT:

1. “Presence Operator” — Smart Home / Human-Aware Cluster

Your cluster reacts to whether people are home.

What it does

The operator watches:

  • phone presence
  • WiFi devices
  • Bluetooth beacons
  • calendar events
  • time of day

Then automatically:

  • scales services up/down
  • enables/disables public ingress
  • powers GPU workloads
  • changes DNS exposure
  • pauses noisy jobs at night

Examples

Interesting CRD

apiVersion: home.calum.sh/v1
kind: PresencePolicy
metadata:
  name: movie-night
spec:
  when:
    peopleHome: ["calum"]
    timeAfter: "18:00"
  actions:
    scale:
      deployment: jellyfin
      replicas: 2

Why it’s cool

You’re basically building a “cluster nervous system.”


2. “EdgeSleep Operator” — Power-Aware Raspberry Pi Autoscaler

A Kubernetes operator that physically powers Pis on/off.

What it does

Uses:

  • smart plugs
  • Wake-on-LAN
  • PoE hats
  • IPMI-like APIs
  • Tailscale/SSH

To dynamically:

  • wake dormant Pi workers
  • drain nodes before shutdown
  • consolidate workloads overnight

Features

  • Energy dashboard
  • Temperature-aware scheduling
  • Solar/battery-aware scaling
  • Carbon-aware scheduling

Fun feature

If the cluster load spikes:

  1. operator powers on another Pi
  2. node joins cluster automatically
  3. workloads rebalance

Like cloud autoscaling… but literally in your living room.


3. “Tunnel Operator” — Auto-Public Exposure via Cloudflare

This fits your current stack perfectly.

What it does

You create an Ingress-like CRD:

apiVersion: tunnel.calum.sh/v1
kind: PublicService
metadata:
  name: blog
spec:
  service: blog-service
  hostname: blog.example.com
  auth:
    google: true
  rateLimit:
    requestsPerMinute: 100

Operator automatically:

  • provisions Cloudflare tunnel routes
  • creates DNS records
  • configures Traefik middleware
  • enables OAuth
  • provisions mTLS certs
  • generates preview URLs

Bonus ideas

  • Ephemeral PR environments
  • One-click share links
  • Geo-restricted services
  • Auto-expiring public URLs

Why it’s fun

Feels like building your own tiny Heroku/Render/Vercel platform.


4. “LAN Party Operator” — Multiplayer Game Cluster

Your cluster becomes a retro LAN-party appliance.

What it does

Creates dedicated game servers dynamically:

  • Minecraft
  • Counter-Strike
  • Valheim
  • Factorio

Features

  • Auto DNS + Cloudflare exposure
  • Temporary servers
  • Discord/webhook integration
  • Backup worlds automatically
  • Suspend inactive servers

Cool twist

The operator could:

  • detect active players
  • scale CPU-heavy nodes
  • migrate servers off overheating Pis

CRD Example

apiVersion: gaming.calum.sh/v1
kind: GameServer
metadata:
  name: saturday-minecraft
spec:
  game: minecraft
  maxPlayers: 12
  autoSleepAfter: 30m

5. “Chaos Neighbor Operator” — Self-Healing Homelab Gremlin

A chaos engineering operator designed specifically for homelabs.

What it does

Intentionally causes failures:

  • kills pods
  • disables tunnels
  • corrupts DNS
  • simulates SD card failure
  • rate limits network
  • reboots Pis

Why?

To test whether your cluster actually self-heals.

Fun mechanics

Gamify resilience:

  • “Cluster survived 14 days without intervention”
  • resilience score
  • failure replay timeline

Especially fun with:

  • Longhorn/Ceph
  • Traefik failover
  • Cloudflare tunnels
  • distributed Redis/Postgres

Example CRD

apiVersion: chaos.calum.sh/v1
kind: GremlinEvent
metadata:
  name: evil-tuesday
spec:
  target:
    nodeSelector:
      type: raspberry-pi
  actions:
    - reboot
    - packetLoss: 40%

Bonus Idea: “Physical Dashboard Operator”

A tiny operator that controls:

  • e-ink displays
  • LED matrices
  • RGB strips
  • OLED screens attached to Pis

Shows:

  • cluster health
  • tunnel status
  • current ingress traffic
  • node temperatures
  • GitOps sync state

Imagine:

  • cluster healthy = green ambient LEDs
  • ArgoCD drift = flashing yellow
  • node dead = red strip across the room

Could integrate with:


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