Sonobuoy is a diagnostic tool that makes it easier to understand the state of a Kubernetes cluster by running a set of plugins (including 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
Starting v0.20, Sonobuoy supports Kubernetes v1.17 or later. Sonobuoy releases will be independent of Kubernetes release, while ensuring that new releases continue to work functionally across different versions of Kubernetes. Read more about the new release cycles in our blog.
Note: You can skip this version enforcement by running Sonobuoy with the
Access to an up-and-running Kubernetes cluster. If you do not have a cluster, we recommend either:
kubeconfigfile, and the KUBECONFIG environment variable set.
The following methods exist for installing Sonobuoy:
Download the latest release for your client platform.
Extract the tarball:
tar -xvf <RELEASE_TARBALL_NAME>.tar.gz
Move the extracted
sonobuoyexecutable to somewhere on your
Install with Hombrew (MacOS)
Run the command:
brew install sonobuoy
To launch conformance tests (ensuring CNCF conformance) and wait until they are finished run:
sonobuoy run --wait
--mode quickwill significantly shorten the runtime of Sonobuoy. It runs just a single test, helping to quickly validate your Sonobuoy and Kubernetes configuration.
Get the results from the plugins (e.g. e2e test results):
Inspect results for test failures. This will list the number of tests failed and their names:
sonobuoy results $results
resultscommand has lots of useful options for various situations. See the results page for more details.
You can also extract the entire contents of the file to get much more detailed data about your cluster.
Sonobuoy creates a few resources in order to run and expects to run within its own namespace.
Deleting Sonobuoy entails removing its namespace as well as a few cluster scoped resources.
sonobuoy delete --wait
Note: The –wait option ensures the Kubernetes namespace is deleted, avoiding conflicts if another Sonobuoy run is started quickly.
If you have an issue with permissions in your cluster but you still want to run Sonobuoy, you can use
--aggregator-permissions flag. Read more details about it
sonobuoy run runs the Kubernetes conformance tests but this can easily be configured. The same plugin that
has the conformance tests has all the Kubernetes end-to-end tests which include other tests such as:
- tests for specific storage features
- performance tests
- scaling tests
- provider specific tests
- and many more
To modify which tests you want to run, checkout our page on the e2e plugin.
If you want to run other tests or tools which are not a part of the Kubernetes end-to-end suite, refer to our documentation on custom plugins.
Monitoring Sonobuoy during a run
You can check on the status of each of the plugins running with:
You can also inspect the logs of all Sonobuoy containers:
If you encounter any problems that the documentation does not address, file an issue.
Docker Hub rate limit
This year, Docker has started rate limiting image pulls from Docker Hub. We’re planning a future release with a better user interface to work around this. Until then, this is the recommended approach.
Sonobuoy by default pulls from Docker Hub for
If you’re encountering rate limit on this, you can use VMware-provided mirror with:
sonobuoy run --sonobuoy-image projects.registry.vmware.com/sonobuoy/sonobuoy:<VERSION>
Kubernetes end-to-end conformance test pulls several images from Docker Hub as part of testing. To override this, you
will need to create a registry manifest file locally (e.g.
conformance-image-config.yaml) containing the following:
Then on running conformance:
sonobuoy run --sonobuoy-image projects.registry.vmware.com/sonobuoy/sonobuoy:<VERSION> --e2e-repo-config conformance-image-config.yaml
dockerGluster is also a registry pulling from Docker Hub, but it’s not part of Conformance test suite at
the moment, so overriding
dockerLibraryRegistry should be enough.
Leaked End-to-end namespaces
There are some Kubernetes e2e tests that may leak resources. Sonobuoy can help clean those up as well by deleting all
namespaces prefixed with
sonobuoy delete --all
Run on Google Cloud Platform (GCP)
Sonobuoy requires admin permissions which won’t be automatic if you are running via 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@example.com>
Run on Kubernetes for Docker Desktop
We don’t recommend running via a cluster set up via Docker Desktop. Known issues include:
kubectl logswill not function
sonobuoy logswill not function
sonobuoy retrievewill not function
systemd-logsplugin will hang
Most of these issues revolve around issues with kube-proxy on Docker Desktop so if you know of how to resolve these issues, let us know.
Certified-Conformance bug (versions v0.53.0 and v0.53.1)
These versions of Sonobuoy have a bug that runs the wrong set of tests without additional actions. See more details here. The simplest way to avoid this is to update your version of Sonobuoy to >= v0.53.2.
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.
The most common build/test functions are called via the Makefile:
// Build the binary $ make build // Run local unit tests $ make test
If you make changes which change output, you may fail tests which utilize the golden file testing pattern (e.g. correct data is stored in external files), update them by running:
$ make golden
In most cases, running integration tests is more simply done in CI when you open a pull request. You can dig into scripts/build_funcs.sh and our .github/workflows/ci-test.yaml for exact details of existing test flows.
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 Slack channel if you want to interact with other members of the community
See the list of releases to find out about feature changes.