YAKS
YAKS is a free framework for behavior-driven testing of cloud-native applications on Kubernetes.
What YAKS is
YAKS is a free framework for behavior-driven testing of cloud-native applications on Kubernetes. Its tests are written as Gherkin feature specifications and run as Kubernetes pods after the YAKS operator prepares a runtime from a Test custom resource. The yaks command-line tool installs the operator and runs tests on a cluster. Built-in steps cover HTTP REST, JMS, Kafka, and Knative eventing. The yaks-http module can call REST endpoints and check responses, or provide an HTTP service that receives requests and simulates responses. Other modules support Apache Camel routes, Camel K integrations, and calls based on imported OpenAPI specifications. Tests can load credentials and connection URLs from Kubernetes secrets selected with YAKS labels. YAKS requires a Kubernetes or OpenShift cluster; setting up roles and custom resources may need administrator permissions. Full Windows support requires Windows Subsystem for Linux and a reboot. The project is published under the Apache-2.0 license.
Good
- Uses Gherkin feature specifications
- Tests run as Kubernetes pods
- Includes HTTP REST, JMS, Kafka, and Knative steps
- Supports Camel routes and OpenAPI specifications
- Can load credentials from Kubernetes secrets
Watch out
- Requires access to a Kubernetes or OpenShift cluster
- Custom resource setup may require administrator permissions
- Full Windows support requires WSL and a reboot
Who it suits
YAKS suits developers testing cloud-native services and integrations in Kubernetes or OpenShift environments. It is especially relevant to teams that want to describe tests in Gherkin and exercise HTTP, messaging, Camel, or OpenAPI-based integrations.
Verdict
YAKS offers a free, cluster-based approach to BDD testing with several service and integration options. Teams need a Kubernetes or OpenShift environment, and Windows users have an additional setup requirement.
The facts
Each one read from YAKS's own pages, with the date it was checked.
What it does
- Additional testing
- YAKS documentation includes OpenAPI, Selenium and Testcontainers testing steps.checked 1 Oct 2026
- BDD syntax
- YAKS tests use feature specifications written in Gherkin syntax.checked 1 Oct 2026
- Camel integration
- The yaks-camel module creates, starts, and stops Apache Camel routes and exposes more than 300 Camel components for testing.checked 1 Oct 2026
- Camel K
- YAKS provides bindings for creating and verifying Apache Camel K integrations running on Kubernetes or OpenShift.checked 1 Oct 2026
- Citrus integration
- YAKS builds on Citrus for connecting to endpoints as a client or server.checked 1 Oct 2026
- CLI
- The yaks CLI installs the operator and runs tests on a Kubernetes cluster.checked 1 Oct 2026
- Cloud integrations
- The documentation includes steps for Apache Camel, Apache Camel K, Kamelets, Pipes and Kubernetes resources.checked 1 Oct 2026
- Cluster requirement
- Using YAKS requires access to a Kubernetes or OpenShift cluster.checked 1 Oct 2026
- Execution model
- Tests run as Kubernetes pods after the YAKS operator prepares a test runtime from a Test custom resource.checked 1 Oct 2026
- HTTP integration
- The yaks-http module calls HTTP REST endpoints, verifies responses, and can provide an HTTP service that receives requests and simulates responses.checked 1 Oct 2026
- License
- Citrus is published free of charge under the Apache License, Version 2.0, including use for commercial applications.checked 1 Oct 2026
- License warranty
- The Apache license states that the software is provided on an AS IS basis without warranties unless required by law or agreed in writing.checked 1 Oct 2026
- Messaging integrations
- Predefined steps support HTTP REST, JMS, Kafka and Knative eventing transports.checked 1 Oct 2026
- OpenAPI
- The yaks-openapi module imports OpenAPI specifications and uses defined operations and test data to call HTTP REST endpoints.checked 1 Oct 2026
- Permissions
- Installing YAKS custom resource definitions and roles may require cluster-admin permissions.checked 1 Oct 2026
- Purpose
- YAKS is a framework for cloud-native behavior-driven development testing on Kubernetes.checked 1 Oct 2026
- Requirements
- YAKS requires access to a Kubernetes or OpenShift cluster, and administrative rights may be needed to set up roles and custom resources.checked 1 Oct 2026
- Secrets
- Tests can load credentials and connection URLs from Kubernetes secrets selected with YAKS labels.checked 1 Oct 2026
- Security controls
- Managing custom resources requires Kubernetes roles and role bindings for the yaks-viewer and yaks-operator service accounts.checked 1 Oct 2026
- Support
- The Citrus team offers consulting, training, implementation help, patches, and custom features, with user and developer mailing lists.checked 1 Oct 2026
- Support channels
- The project provides documentation, GitHub issues and a Zulip chat for questions and contributions.checked 1 Oct 2026
- Test language
- YAKS tests use BDD feature specifications written in Gherkin syntax.checked 1 Oct 2026
Where it runs
- Windows requirement
- Full YAKS support on Windows requires Windows Subsystem for Linux and a reboot after enabling it.checked 1 Oct 2026
- Windows support
- Full Windows support requires enabling Windows Subsystem for Linux and rebooting the system.checked 1 Oct 2026
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