README.md

Sonobuoy

Maintainers: Heptio

Overview

Heptio Sonobuoy is a diagnostic tool that makes it easier to understand the state of a Kubernetes cluster by running a set of Kubernetes conformance tests in an accessible and non-destructive manner. It is a customizable, extendable, and cluster-agnostic way to generate clear, informative reports about your cluster.

Its selective data dumps of Kubernetes resource objects and cluster nodes allow for the following use cases:

• Integrated end-to-end (e2e) conformance-testing
• Workload debugging
• Custom data collection via extensible plugins

Sonobuoy supports Kubernetes versions 1.8 and later.

More information

The documentation provides detailed information about the conformance tests, plugins, and snapshots.

Prerequisites

• Access to an up-and-running Kubernetes cluster. If you do not have a cluster, follow the AWS Quickstart Kubernetes Tutorial to set one up with a single command.

• kubectl installed. See installing via Homebrew (MacOS) or building the binary (Linux).

• An admin kubeconfig file, and the KUBECONFIG environment variable set.

Getting Started

The browser-based Sonobuoy Scanner tool is the quickest way to get started with Sonobuoy. Sonobuoy Scanner also provides a user-friendly way of viewing your scan results.

NOTE: Sonobuoy Scanner runs conformance tests only.

Using the CLI

Sonobuoy also provides a CLI that lets you run Sonobuoy on your cluster. The CLI records the following results:

• Information about your cluster's hosts, Kubernetes resources, and versions.
• systemd logs from each host. Requires a plugin.
• The results of a single e2e conformance test ("Pods should be submitted and removed"). See the [conformance guide][conformance] for configuration details. Requires a plugin.

CLI Prerequisites

• Golang installed. We recommend gimme, with golang version 1.9.4.

• Your $PATH configured:

$ export PATH=$GOROOT/bin:$GOPATH/bin:$PATH 

Download and run

Download the CLI by running:

$ go get -u -v github.com/heptio/sonobuoy

Deploy a Sonobuoy pod to your cluster with:

$ sonobuoy run

View actively running pods:

$ sonobuoy status 

To inspect the logs:

$ sonobuoy logs

To view the output, copy the output directory from the main Sonobuoy pod to somewhere local:

$ sonobuoy retrieve .

This copies a single .tar.gz snapshot from the Sonobuoy pod into your local . directory. Extract the contents into ./results with:

mkdir ./results; tar xzf *.tar.gz -C ./results

For information on the contents of the snapshot, see the snapshot documentation.

Cleanup

To clean up Kubernetes objects created by Sonobuoy, run:

sonobuoy delete

Run on Google Cloud Platform (GCP)

Note that if you run Sonobuoy on a Google Kubernetes Engine (GKE) cluster, you must first create an admin role for the user under which you run Sonobuoy:

kubectl create clusterrolebinding <your-user-cluster-admin-binding> --clusterrole=cluster-admin --user=<[email protected]>

Troubleshooting

If you encounter any problems that the documentation does not address, file an issue.

Contributing

Thanks for taking the time to join our community and start contributing! We welcome pull requests. Feel free to dig through the issues and jump in.

Before you start

• Please familiarize yourself with the Code of Conduct before contributing.
• See CONTRIBUTING.md for instructions on the developer certificate of origin that we require.
• There is a mailing list and Slack channel if you want to interact with other members of the community

Changelog

See the list of releases to find out about feature changes.