Ambassador Edge Stack 4.1: API Gateway Enhancements

Introduction

Ambassador Edge Stack 4.1, released on October 5, 2024, builds upon the foundation of version 4.0 with enhanced API gateway features, improved routing capabilities, better observability, and expanded integration options. This release makes Ambassador Edge Stack more powerful for managing APIs at the edge.

API Gateway Features

• Advanced routing capabilities enable sophisticated traffic management and request transformation.
• Rate limiting improvements provide more flexible throttling strategies.
• Authentication enhancements expand support for OAuth2, JWT, and API keys.
• Authorization improvements enable fine-grained access control for APIs.

Routing Enhancements

1. Traffic splitting enhancements enable more sophisticated canary and blue-green deployments.
2. Request transformation improvements provide better control over request modification.
3. Response transformation capabilities enable dynamic response modification.
4. Header manipulation enhancements provide better control over HTTP headers.

Observability Improvements

• Metrics expansion provides detailed metrics for traffic, errors, and performance.
• Distributed tracing support enables correlation of requests across services.
• Access logs improvements provide more detailed request and response information.
• Dashboard integration provides visualization of API traffic and health.

Integration Capabilities

• GraphQL support enables GraphQL API gateway capabilities.
• gRPC enhancements provide better support for gRPC traffic.
• WebSocket improvements enable better WebSocket connection handling.
• Serverless integration enables integration with serverless functions.

Getting Started

# Install Ambassador Edge Stack
kubectl apply -f https://app.getambassador.io/yaml/edge-stack/latest/aes-crds.yaml
kubectl apply -f https://app.getambassador.io/yaml/edge-stack/latest/aes.yaml

Create a Mapping:

apiVersion: getambassador.io/v3alpha1
kind: Mapping
metadata:
  name: myapp
spec:
  prefix: /api/
  service: myapp:80
  host: myapp.example.com

Summary

Ambassador Edge Stack 4.1 continues to evolve as a leading API gateway, providing teams with powerful capabilities for managing APIs at the edge.