ctxpropagation

This sample Workflow demos context propagation through a Workflow. Details about context propagation are available here.

The sample Workflow initializes the client with a context propagator which propagates specific information in the context.Context object across the Workflow. The context.Context object is populated with the information prior to calling StartWorkflow. The Workflow demonstrates that the information is available in the Workflow and any activities executed.

Also, this sample initializes a Jaeger global tracer and pass it to the client. The sample will work without actual Jaeger instance -- just report every tracer call to the log. To see traces in Jaeger run it with follow command:

$ docker run --publish 6831:6831 --publish 16686:16686 jaegertracing/all-in-one:latest

Steps to run this sample:

1. Run a Temporal service.
2. Run

go run ctxpropagation/worker/main.go

to start worker for ctxpropagation Workflow.

3. Run:

go run ctxpropagation/starter/main.go

to start Workflow.

You should see prints showing the context information available in the workflow and activities.