Sonobuoy

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About

Sonobuoy is ranked #5 of 27 in infrastructure testing tools on Inferse. It runs on Linux, macOS, Self-hosted, Windows.

Compared on infrastructure testing tools

Free plan: Yessonobuoy.io
Config compliance: Yessonobuoy.io
Deployed checks: Yessonobuoy.io
Execution model: localsonobuoy.io
Cloud support: AWS, Google Cloud Platformsonobuoy.io

Facts

Purpose: Sonobuoy is a diagnostic tool for understanding Kubernetes cluster state through accessible, non-destructive configuration tests.sonobuoy.io · 30 Sept 2026
Conformance testing: It tests whether a cluster conforms to official Kubernetes specifications.sonobuoy.io · 30 Sept 2026
Workload debugging: It generates diagnostics for troublesome workloads.sonobuoy.io · 30 Sept 2026
Custom testing: Users can create plugins for custom configuration tests and data collection.sonobuoy.io · 30 Sept 2026
Cluster support: Sonobuoy is cluster agnostic and officially supports the latest three minor Kubernetes versions.sonobuoy.io · 30 Sept 2026
Air-gapped operation: It supports end-to-end testing with custom registries in air-gapped deployments.sonobuoy.io · 30 Sept 2026
Built-in plugins: The default plugins are Kubernetes end-to-end tests and systemd log gathering.sonobuoy.io · 30 Sept 2026
Community plugins: Listed plugins include CIS Benchmarks, Kube-hunter, Who-can, Cluster-Inventory, and Reliability Scanner.sonobuoy.io · 30 Sept 2026
Kubernetes versions: Starting with version 0.20, Sonobuoy supports Kubernetes 1.17 or later.sonobuoy.io · 30 Sept 2026
Prerequisites: Running Sonobuoy requires an active Kubernetes cluster and an admin kubeconfig.sonobuoy.io · 30 Sept 2026
Installation: Installation is available through binary releases or Homebrew on macOS.sonobuoy.io · 30 Sept 2026
Integrations: The documentation references AWS Quickstart, KinD, kubectl, Docker, and Docker Hub workflows.sonobuoy.io · 30 Sept 2026
Security support: Only the most recent Sonobuoy version is supported for conformance tests on the latest Kubernetes version and two prior versions.github.com · 30 Sept 2026
Vulnerability reporting: Security vulnerabilities should be reported privately to the VMware Security Team, which aims to respond within three business days.github.com · 30 Sept 2026
Security defaults: The project states that Sonobuoy's default settings are not secure by default and require explicit hardening configuration.github.com · 30 Sept 2026
Support model: Sonobuoy is open source, provides community support through GitHub, and welcomes community contributions.sonobuoy.io · 30 Sept 2026
Docker Desktop limitation: The documentation reports that kubectl logs, sonobuoy logs, and sonobuoy retrieve may fail and the systemd-logs plugin may hang on Docker Desktop Kubernetes.sonobuoy.io · 30 Sept 2026
Purpose: Sonobuoy is a diagnostic tool for understanding Kubernetes cluster state by running configuration tests in an accessible, non-destructive way.sonobuoy.io · 1 Oct 2026
Conformance testing: It tests whether a cluster conforms to official Kubernetes specifications.sonobuoy.io · 1 Oct 2026
Workload debugging: It generates diagnostics for troublesome workloads that are difficult to debug.sonobuoy.io · 1 Oct 2026
Custom testing: Users can create plugins to test custom configurations or use community plugins.sonobuoy.io · 1 Oct 2026
Cluster support: Sonobuoy runs on any Kubernetes cluster and officially supports the latest three Kubernetes minor versions.sonobuoy.io · 1 Oct 2026
Air-gapped use: It supports end-to-end tests with custom registries in air-gapped deployments.sonobuoy.io · 1 Oct 2026
Open source: Sonobuoy is released as open source software.sonobuoy.io · 1 Oct 2026
Community support: Community support is provided through the Sonobuoy GitHub project, including GitHub issues.sonobuoy.io · 1 Oct 2026
CIS benchmarks: The CIS Benchmarks plugin uses kube-bench and runs checks on master and worker nodes.sonobuoy.io · 1 Oct 2026
End-to-end tests: The end-to-end plugin runs tests maintained by the upstream Kubernetes community.sonobuoy.io · 1 Oct 2026
Host logs: The systemd-logs plugin gathers host log information by chrooting into the node filesystem and running journalctl.sonobuoy.io · 1 Oct 2026
Security visibility: The Kube-hunter plugin runs Aqua Security’s kube-hunter to increase visibility of security issues in Kubernetes environments.sonobuoy.io · 1 Oct 2026
RBAC reporting: The Who-can plugin reports which subjects have RBAC permissions to perform actions against cluster resources.sonobuoy.io · 1 Oct 2026
Prerequisites: Running Sonobuoy requires access to an up-and-running Kubernetes cluster and an admin kubeconfig.sonobuoy.io · 1 Oct 2026
Docker dependency: The sonobuoy images subcommand requires Docker to be installed.sonobuoy.io · 1 Oct 2026
Support channel: The Sonobuoy community Slack channel has over 300 members.sonobuoy.io · 1 Oct 2026