DevOps-Security-Agent-Skills/infrastructure/networking/service-mesh/SKILL.md

name, description, license, metadata

name	description	license	metadata
service-mesh	Implement Istio and Linkerd service meshes. Configure mTLS, traffic management, and observability. Use when managing microservices communication.	MIT	author version devops-skills 1.0

Service Mesh

Implement service-to-service communication management.

Istio Installation

istioctl install --set profile=demo

# Enable sidecar injection
kubectl label namespace default istio-injection=enabled

Traffic Management

apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: myapp
spec:
  hosts:
  - myapp
  http:
  - match:
    - headers:
        canary:
          exact: "true"
    route:
    - destination:
        host: myapp
        subset: canary
  - route:
    - destination:
        host: myapp
        subset: stable
      weight: 90
    - destination:
        host: myapp
        subset: canary
      weight: 10

mTLS

apiVersion: security.istio.io/v1beta1
kind: PeerAuthentication
metadata:
  name: default
spec:
  mtls:
    mode: STRICT

Best Practices

• Enable strict mTLS
• Implement circuit breakers
• Use traffic shifting for deployments
• Monitor with Kiali and Jaeger