Déploiement et infrasource GitHub
Gestion du trafic Istio
/SKILLGuide complet sur la gestion du trafic Istio pour les déploiements de mailles de services en production.
// contenu du skill
name: istio-traffic-management
description: Configure Istio traffic management including routing, load balancing, circuit breakers, and canary deployments. Use when implementing service mesh traffic policies, progressive delivery, or resilience patterns.
Istio Traffic Management
Comprehensive guide to Istio traffic management for production service mesh deployments.
When to Use This Skill
- Configuring service-to-service routing
- Implementing canary or blue-green deployments
- Setting up circuit breakers and retries
- Load balancing configuration
- Traffic mirroring for testing
- Fault injection for chaos engineering
Core Concepts
1. Traffic Management Resources
| Resource | Purpose | Scope |
|---|---|---|
| VirtualService | Route traffic to destinations | Host-based |
| DestinationRule | Define policies after routing | Service-based |
| Gateway | Configure ingress/egress | Cluster edge |
| ServiceEntry | Add external services | Mesh-wide |
2. Traffic Flow
Client → Gateway → VirtualService → DestinationRule → Service
(routing) (policies) (pods)Templates
Template 1: Basic Routing
yaml
apiVersion: networking.istio.io/v1beta1
kind: VirtualService
metadata:
name: reviews-route
namespace: bookinfo
spec:
hosts:
- reviews
http:
- match:
- headers:
end-user:
exact: jason
route:
- destination:
host: reviews
subset: v2
- route:
- destination:
host: reviews
subset: v1
---
apiVersion: networking.istio.io/v1beta1
kind: DestinationRule
metadata:
name: reviews-destination
namespace: bookinfo
spec:
host: reviews
subsets:
- name: v1
labels:
version: v1
- name: v2
labels:
version: v2
- name: v3
labels:
version: v3Template 2: Canary Deployment
yaml
apiVersion: networking.istio.io/v1beta1
kind: VirtualService
metadata:
name: my-service-canary
spec:
hosts:
- my-service
http:
- route:
- destination:
host: my-service
subset: stable
weight: 90
- destination:
host: my-service
subset: canary
weight: 10
---
apiVersion: networking.istio.io/v1beta1
kind: DestinationRule
metadata:
name: my-service-dr
spec:
host: my-service
trafficPolicy:
connectionPool:
tcp:
maxConnections: 100
http:
h2UpgradePolicy: UPGRADE
http1MaxPendingRequests: 100
http2MaxRequests: 1000
subsets:
- name: stable
labels:
version: stable
- name: canary
labels:
version: canaryTemplate 3: Circuit Breaker
yaml
apiVersion: networking.istio.io/v1beta1
kind: DestinationRule
metadata:
name: circuit-breaker
spec:
host: my-service
trafficPolicy:
connectionPool:
tcp:
maxConnections: 100
http:
http1MaxPendingRequests: 100
http2MaxRequests: 1000
maxRequestsPerConnection: 10
maxRetries: 3
outlierDetection:
consecutive5xxErrors: 5
interval: 30s
baseEjectionTime: 30s
maxEjectionPercent: 50
minHealthPercent: 30Template 4: Retry and Timeout
yaml
apiVersion: networking.istio.io/v1beta1
kind: VirtualService
metadata:
name: ratings-retry
spec:
hosts:
- ratings
http:
- route:
- destination:
host: ratings
timeout: 10s
retries:
attempts: 3
perTryTimeout: 3s
retryOn: connect-failure,refused-stream,unavailable,cancelled,retriable-4xx,503
retryRemoteLocalities: trueTemplate 5: Traffic Mirroring
yaml
apiVersion: networking.istio.io/v1beta1
kind: VirtualService
metadata:
name: mirror-traffic
spec:
hosts:
- my-service
http:
- route:
- destination:
host: my-service
subset: v1
mirror:
host: my-service
subset: v2
mirrorPercentage:
value: 100.0Template 6: Fault Injection
yaml
apiVersion: networking.istio.io/v1beta1
kind: VirtualService
metadata:
name: fault-injection
spec:
hosts:
- ratings
http:
- fault:
delay:
percentage:
value: 10
fixedDelay: 5s
abort:
percentage:
value: 5
httpStatus: 503
route:
- destination:
host: ratingsTemplate 7: Ingress Gateway
yaml
apiVersion: networking.istio.io/v1beta1
kind: Gateway
metadata:
name: my-gateway
spec:
selector:
istio: ingressgateway
servers:
- port:
number: 443
name: https
protocol: HTTPS
tls:
mode: SIMPLE
credentialName: my-tls-secret
hosts:// source originale publique
wshobson/agents/plugins/cloud-infrastructure/skills/istio-traffic-management/SKILL.md
Licence : MIT
Projet indépendant, non affilié à Anthropic. Ce skill reste la propriété de son auteur original.
