I built a CLI that tells you where your Kubernetes money burns

Got tired of setting up dashboards just to answer "where does our K8s money go?"

So I built Burn — a CLI that shows you exactly which namespaces,

pods, and load balancers cost what. One command, no agent, no dashboard.

## What it looks like

  $ burn analyze --prometheus http://prometheus:9090     

  NAMESPACE            PODS  CPU REQ→USED   COST/MO
  argocd               4     2.0 → 30m      $56
  amazon-cloudwatch    11    1.6 → 82m      $44                                                                  
  kube-system          21    1.4 → 52m      $41
  ...and 7 more namespaces                                                                                       
  Idle (unallocated)                        $117                                                                 
  Total                                     $350                                                                 

  COST BREAKDOWN                                                                                                 
  Compute: $350 | Storage: $0 | LB: $16                                                                          
  Total: $367                                                                                                    

argocd-dex-server requests 500m CPU, uses 0.12m. That's $14/month for 0.02% efficiency.

## Slack integration

It also works as a Slack bot. You just ask:

  /burn ask "what should I do to save money"                                                                     

  → 1. Switch to Spot — Save $277/mo                                                                             
    2. Rightsize argocd-dex-server (500m → 10m CPU)      
       $ kubectl set resources deployment argocd-dex-server -n argocd --requests=cpu=10m                         
    3. Delete forgotten rds-debug pods — $11/mo wasted

You ask a question, it gives you kubectl commands. No manual analysis.

## How it works

• Pulls node and pod data from the Kubernetes API
• Gets actual CPU/memory usage from Prometheus
• Fetches real pricing from AWS and Azure APIs
• Splits cost per resource (CPU and RAM priced independently)
• Detects load balancers via both Service and Ingress resources
• GPU nodes detected and priced automatically

## Install

  brew install tanrikuluozlem/burn/burn                                                                          

Also available as Docker image, Helm chart, or Go binary.

## On-prem and GPU

Works with on-premise and GPU clusters too:

  burn analyze --cpu-price 0.05 --ram-price 0.008 --gpu-price 3.00

Open source, Apache 2.0: github.com/tanrikuluozlem/burn

What does your cluster idle cost look like? Curious if 33% waste is normal.