Example of Distributed Tracing

What's this?

• Containerized vibe.d web app with multi-stage build
• Example implementation to support distributed tracing of service meshes

Tracing images

App

App Graph

Trace

Requirements

• Kubernetes
• Istio(istioctl)

Setup Istio

Download istioctl

• Release page

Install Istio

istioctl install --set profile=demo --skip-confirmation
istioctl verify-install

Install addons

kubectl apply -f https://raw.githubusercontent.com/istio/istio/release-1.14/samples/addons/prometheus.yaml
kubectl apply -f https://raw.githubusercontent.com/istio/istio/release-1.14/samples/addons/jaeger.yaml
kubectl apply -f https://raw.githubusercontent.com/istio/istio/release-1.14/samples/addons/kiali.yaml
kubectl apply -f https://raw.githubusercontent.com/istio/istio/release-1.14/samples/addons/grafana.yaml
kubectl apply -f https://raw.githubusercontent.com/istio/istio/release-1.14/samples/addons/extras/zipkin.yaml

Build images

Services

docker build -t weather-service:v1 ./services/weather
docker build -t weather-service:v2 --build-arg BUILD_CONFIG=VERSION_2 ./services/weather
docker build -t weather-service:v3 --build-arg BUILD_CONFIG=VERSION_3 ./services/weather

Web

docker build -t web:v1 ./web

Run

kubectl create namespace weather
kubectl label namespace weather istio-injection=enabled
kubectl apply -n weather -f example.yaml

1. Access to http://localhost:30000
2. Search some location (allow any text)

Show Dashboard

istioctl dashboard kiali
istioctl dashboard jaeger
istioctl dashboard grafana

References

• https://github.com/istio/istio/tree/master/samples/bookinfo