destination-rule.yaml

apiVersion: networking.istio.io/v1alpha3
kind: DestinationRule
metadata:
  name: backend
  namespace: demo
spec:
  host: backend
  subsets:
  - name: v1
    labels:
      app.kubernetes.io/name: backend
      app.kubernetes.io/version: v1
  - name: v2
    labels:
      app.kubernetes.io/name: backend
      app.kubernetes.io/version: v2
  # # Circuit Breaker
  # trafficPolicy:
  #   connectionPool:
  #     http:
  #       http1MaxPendingRequests: 1
  #       maxRequestsPerConnection: 1
  #       maxRetries: 0
  #   outlierDetection:
  #     consecutive5xxErrors: 1
  #     interval: 30s
  #     baseEjectionTime: 1m
  #     maxEjectionPercent: 100

# ---
# apiVersion: networking.istio.io/v1alpha3
# kind: DestinationRule
# metadata:
#   name: bar
#   namespace: demo
# spec:
#   host: backend-v1
#   subsets:
#   - name: v1
#     labels:
#       app.kubernetes.io/name: backend
#       app.kubernetes.io/version: v1
#   - name: v2
#     labels:
#       app.kubernetes.io/name: backend
#       app.kubernetes.io/version: v2
# ---
# apiVersion: networking.istio.io/v1alpha3
# kind: DestinationRule
# metadata:
#   name: baz
#   namespace: demo
# spec:
#   host: backend-v2
#   subsets:
#   - name: v2
#     labels:
#       app.kubernetes.io/name: backend
#       app.kubernetes.io/version: v2