Traffic routing — DestinationRule

Define subsets and circuit breaker (outlier detection)

kubectl apply -f - <<EOF apiVersion: networking.istio.io/v1alpha3 kind: DestinationRule metadata: name: myapp spec: host: myapp trafficPolicy: outlierDetection: consecutive5xxErrors: 5 interval: 10s baseEjectionTime: 30s subsets: - name: v1 labels: version: v1 - name: v2 labels: version: v2 EOF
tool
istio19 commands
tags
istioservice-meshdestinationrule

More istio commands

  • Fault injection — delay
    kubectl apply -f - <<EOF apiVersion: networking.istio.io/v1alpha3 kind: VirtualService metadata: name: myapp spec: hosts: - myapp http: - fault: delay: percentage: value: 100 fixedDelay: 5s route: - destination: host: myapp EOF

    Inject 5s delay for 100% of requests to test resilience

  • Traffic mirroring
    kubectl apply -f - <<EOF apiVersion: networking.istio.io/v1alpha3 kind: VirtualService metadata: name: myapp spec: hosts: - myapp http: - route: - destination: host: myapp subset: v1 weight: 100 mirror: host: myapp subset: v2 mirrorPercentage: value: 100 EOF

    Mirror 100% of traffic to v2 shadow service

  • Install Istio (demo profile)
    istioctl install --set profile=demo -y

    Install Istio with the demo configuration profile

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

    Enable automatic Envoy sidecar injection for a namespace

  • Check proxy status
    istioctl proxy-status

    Get sync status of all Envoy proxies in the mesh

all 19 istio commands