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diff --git a/docs/development/design/tracing.rst b/docs/development/design/tracing.rst new file mode 100644 index 0000000..79d686c --- /dev/null +++ b/docs/development/design/tracing.rst @@ -0,0 +1,44 @@ +####### +Tracing +####### + +************ +Installation +************ + +Currently, we use the Jaeger tracing all-in-one Kubernetes template for development and testing, +which uses in-memory storage. It can be deployed to the istio-system namespace with the +following command:: + + kubectl apply -n istio-system -f https://raw.githubusercontent.com/jaegertracing/jaeger-kubernetes/master/all-in-one/jaeger-all-in-one-template.yml + +The standard Jaeger REST port is at 16686. To make this service available outside of the +Kubernetes cluster, use the following command:: + + kubectl expose -n istio-system deployment jaeger-deployment --port=16686 --type=NodePort + +Kubernetes will expose the Jaeger service on another port, which can be found with:: + + kubectl get svc -n istio-system + +An example listing from the command above is shown below where the Jaeger service is exposed +externally on port 30888:: + + istio-system jaeger-deployment NodePort 10.104.113.94 <none> 16686:30888/TCP + +Jaeger will be accessible using the host IP of the Kubernetes cluster and port provided. + +******** +Validate +******** + +The script in ``clover/tracing`` validates Jaeger installation:: + + python clover/tracing/validate.py + +It validates the installation with the following criteria: + +#. Existence of Jaeger all-in-one deployment using Kubernetes +#. Jaeger service is accessible using IP address and port configured in installation steps +#. Jaeger can retrieve default service listing for default Istio components +#. TBD - consider installation of production setup with cassandra or elastic search |