API Gateway

Jan 1, 0001

Definition

An API Gateway is a server that acts as an intermediary for requests from clients seeking resources from servers. It provides a single entry point for API calls, handling tasks such as request routing, composition, protocol translation, and security enforcement. API Gateways are crucial for managing API traffic, implementing security policies, and ensuring scalability and reliability in microservices architectures.

Secure Settings Example

apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
  name: secure-gateway
spec:
  selector:
    istio: ingressgateway
  servers:
  - port:
      number: 443
      name: https
      protocol: HTTPS
    tls:
      mode: SIMPLE
      credentialName: my-credential
    hosts:
    - "example.com"

Insecure Settings Example

apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
  name: insecure-gateway
spec:
  selector:
    istio: ingressgateway
  servers:
  - port:
      number: 80
      name: http
      protocol: HTTP
    hosts:
    - "*"