README
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OpenTracing and Jaeger in AWS Lambda Go 1.x Runtime
This is an example of a simple, traced Lambda function using the Jaeger Go tracer with SignalFx. See main.go for the example code.
Building and Creating a Deployment Package
A Go deployment package for AWS Lambda is a .zip file consisting of your built project's executable.
To build this application and create the deployable archive follow these instructions from the root
tracing-examples directory:
$ pwd # Confirm this is <your_local_path/tracing-examples>
$ mkdir -p $GOPATH/src/github.com/signalfx
$ ln -s $(pwd) $GOPATH/src/github.com/signalfx/tracing-examples
$ cd $GOPATH/src/github.com/signalfx/tracing-examples/aws-lambda/jaeger-go
$ GOOS=linux go build . # GOOS=linux is needed for the Lambda runtime environment
$ zip my_traced_golang_lambda.zip ./jaeger-go
The resulting my_traced_golang_lambda.zip can be uploaded to S3 or in your browser via the AWS Console
during function creation. Register your handler as jaeger-go and don't forget to set the
SIGNALFX_INGEST_URL environment variable to point to your Gateway. You should be able test the application
with the following test event:
{
"queryStringParameters": {
"choice": "00"
}
}
The execution result should succeed with a response similar to:
{
"statusCode": 404,
"body": "{\"TraceId\":\"2296bd21606fc2e4\",\"Result\":\"You Lost! The ball landed on 35.\",\"Choice\":\"00\"}"
}
Resources
Documentation
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Overview ¶
This Lambda function is an example of an OpenTracing-instrumented Roulette game using the Jaeger Go tracer where requests containing a chosen number made to an API Gateway resource are compared to a random number from the wheel.
GET /my_resource/?choice=36 -> 404 Loss GET /my_resource/?choice=00 -> 200 Win
Winning requests will produce a logged error. You can trigger a winning event by setting a "win" query parameter with an arbitrary value.
GET /my_resource/?win=true
Source Files