Analyze resource consumption in Kubernetes from your terminal

Hoggers is a kubectl plugin that uses multiple Kubernetes API endpoints to show data about resource consumption in a Kubernetes cluster using only a terminal interface.

Installation

At the moment, only Linux distributions are supported. If you're running some other OS, try installing from source.

From pre-built binary

This downloads the pre-built binary and moves it to your PATH.

curl -L -o kubectl-hoggers https://github.com/laurybueno/kubectl-hoggers/releases/download/v1.1.1/kubectl-hoggers
chmod +x kubectl-hoggers
sudo mv kubectl-hoggers /usr/bin

From source

You need to have Go installed to build this application.

go get github.com/laurybueno/kubectl-hoggers

Usage

This plugin checks the KUBECONFIG environment variable to find the cluster config file. You can also pass its path with the --kubeconfig flag.

Check CPU and RAM reservations/limits for each node in a cluster

kubectl hoggers report

List pods consuming most CPU resources in real time along with its corresponding nodes. Refreshes every 10 seconds and requires metrics-server.

kubectl hoggers top

Note: because of the way kubectl plugins work, running kubectl hoggers or kubectl-hoggers gives the same results.

Roadmap

• allow KUBECONFIG to be set via command flag
• output report to a file
• add a namespace option to report
• add table scroll in report
• option to order by RAM in top
• add animated GIFs to demonstrate usage

Development workflow

I suggest using Docker for developing and building this application.

docker build -t kubectl-hoggers:dev -f compose/local/Dockerfile .
docker run -it --rm -v ${PWD}:/app kubectl-hoggers:dev bash
go install -v ./... && kubectl-hoggers