Consul API Gateway 0.4.0

Release Highlights

• Support for Kubernetes Gateway API Version 0.5.0 and v1beta1 APIs: The v0.5.0 release of the Kubernetes Gateway API is significant because it marks the growth in maturity to a beta API version (v1beta1) release for some of the key APIs:

  • GatewayClass
  • Gateway
  • HTTPRoute

  The other APIs (e.g. TCPRoute) are still at the v1alpha2 stage.

  Reaching v1beta1 status has several benefits for users, including greater stability and backward compatibility requirements. Existing fields and allowed options can not be removed or renamed except in a new, major version of the API. Once an API reaches v1beta1 status, future versions must comply with several backward compatibility requirements.

• URL Path Prefix Rewrite This release introduces support for rewriting a URL's path prefix when routing HTTP traffic. To use this functionality, add a URLRewrite filter to an HTTPRoute configuration. This enables the gateway to rewrite the URL path in a client's HTTP request before sending the request to a service. For example, you could configure the gateway to change the path from //store/checkout to //cart/checkout. Refer to the usage documentation for additional information.

What has Changed

• Reference Policy Renamed to Reference Grant In v0.5.0 of the Kubernetes Gateway API, ReferencePolicy has been renamed to ReferenceGrant. This release supports both but ReferencePolicy is deprecated and will be removed in a future version of the standard.

  After upgrading to this version of Consul API Gateway, you should rename all existing ReferencePolicy to ReferenceGrant. Refer to the Upgrades instructions for additional details.

Supported Software

• Consul 1.11.2+
• HashiCorp Consul Helm chart 0.47.1+
• Kubernetes 1.21+
  • Kubernetes 1.24 is not supported at this time.
• Kubectl 1.21+
• Envoy proxy support is determined by the Consul version deployed. Refer to Envoy Integration for details.

Kubernetes Gateway API Specification

Supported version of the Gateway API spec: v0.5.0

Upgrading

For detailed information on upgrading, please refer to the Upgrades page

Known Issues

The following issues are know to exist in the v0.4.0 release

• API Gateway pods fail to start if namespace mirroring enabled and destination namespace doesn't exist. See GitHub Issue #248 for details.

Changelogs

The changelogs for this major release version and any maintenance versions are listed below.

• 0.4.0