Istio Glyph

Service mesh integration for traffic management and routing.

Templates

• istio.istio-gw - Gateway resource
• istio.virtualService - VirtualService for routing

Generated Resources

• Gateway (networking.istio.io/v1)
• VirtualService (networking.istio.io/v1)

Parameters

Gateway (istio.istio-gw)

Field	Type	Description
name	string	Gateway name
hosts	array	Hostnames
istioSelector	map	Selector for istio gateway pods
tls.enabled	bool	Enable TLS
tls.issuerName	string	cert-manager issuer
ports	array	Port configurations

VirtualService (istio.virtualService)

Field	Type	Description
name	string	VirtualService name
enabled	bool	Enable resource
subdomain	string	Subdomain for routing
host	string	Service host
httpRules	array	HTTP routing rules
selector	map	Gateway selector (uses lexicon)

Examples

Gateway

glyphs:
  istio:
    external-gateway:
      type: istio-gw
      hosts:
        - "*.example.com"
      istioSelector:
        istio: external-gateway
      tls:
        enabled: true
        issuerName: letsencrypt-prod
      ports:
        - name: http
          port: 80
          protocol: HTTP
        - name: https
          port: 443
          protocol: HTTPS

VirtualService

glyphs:
  istio:
    my-service:
      type: virtualService
      enabled: true
      subdomain: myapp
      host: my-service
      httpRules:
        - prefix: /
          port: 80
      selector:
        access: external

Lexicon Integration

VirtualService uses lexicon to discover gateways via selectors.

lexicon:
  - name: external-gateway
    type: istio-gw
    labels:
      access: external
    gateway: istio-system/external-gateway
    baseURL: example.com

Testing

make glyphs istio

Examples Location

charts/glyphs/istio/examples/