feat: run simulator with redis backend (#1016)

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## Which problem is this PR solving?

This PR enables the simulator to be able to run with a redis backend 

## Short description of the changes

- added opts.HnyEndpoint to enable sending traces to other honeycomb
environments
- redis returns the status field as `float64`. Handle that scenario in
the decider logic.

cmd/test_stores/fake_refinery.go

@@ -125,13 +125,35 @@ func (fri *FakeRefineryInstance) runDecider(opts CmdLineOptions, nodeIndex int,
 				// * traces with POST spans having status >= 400 && <= 403
 				keep := false
 				for _, span := range trace.Spans {
-					if span.KeyFields["status"].(int) >= 500 {
-						keep = true
-						break
+					operationField, ok := span.KeyFields["operation"]
+					if !ok {
+						addException(span3, fmt.Errorf("missing operation field in span"))
+						continue
 					}
-					if span.KeyFields["status"].(int) >= 400 && span.KeyFields["status"].(int) <= 403 && span.KeyFields["operation"].(string) == "POST" {
-						keep = true
-						break
+					operationValue := operationField.(string)
+					statusField := span.KeyFields["status"]
+					switch value := statusField.(type) {
+					case int:
+						if value >= 500 {
+							keep = true
+							break
+						}
+						if value >= 400 && value <= 403 && operationValue == "POST" {
+							keep = true
+							break
+						}
+					case float64:
+						if value >= 500 {
+							keep = true
+							break
+						}
+						if value >= 400 && value <= 403 && operationValue == "POST" {
+							keep = true
+							break
+						}
+
+					default:
+						addException(span3, fmt.Errorf("unexpected type for status field: %T", value))
 					}
 				}
 

cmd/test_stores/main.go

@@ -91,9 +91,7 @@ func makeRemoteStore(storeType string) centralstore.BasicStorer {
 	case "local":
 		return centralstore.NewLocalRemoteStore()
 	case "redis":
-		return centralstore.NewRedisBasicStore(&centralstore.RedisBasicStoreOptions{
-			Host: "localhost:6379",
-		})
+		return centralstore.NewRedisBasicStore(&centralstore.RedisBasicStoreOptions{})
 	default:
 		panic("unknown store type " + storeType)
 	}
@@ -111,6 +109,7 @@ type CmdLineOptions struct {
 	NodeIndex          int      `long:"node-number" description:"Index of this node if Total > 1" default:"0"`
 	DecisionReqSize    int      `long:"decision-req-size" description:"Number of traces to request for decision" default:"10"`
 	HnyAPIKey          string   `long:"hny-api-key" description:"API key for traces in Honeycomb" default:"" env:"HONEYCOMB_API_KEY"`
+	HnyEndpoint        string   `long:"hny-endpoint" description:"Endpoint for traces in Honeycomb" default:"https://api.honeycomb.io" env:"HONEYCOMB_ENDPOINT"`
 	HnyDataset         string   `long:"hny-dataset" description:"Dataset/service name for traces in Honeycomb" default:"refinery-store-test" env:"HONEYCOMB_DATASET"`
 }
 

cmd/test_stores/otel_tracing.go

@@ -3,6 +3,7 @@ package main
 import (
 	"fmt"
 	"log"
+	"strings"
 	"time"
 
 	"github.com/honeycombio/otel-config-go/otelconfig"
@@ -61,10 +62,13 @@ func setupTracing(opts CmdLineOptions) (tracer trace.Tracer, shutdown func()) {
 	if opts.HnyAPIKey != "" {
 		var protocol otelconfig.Protocol = otelconfig.ProtocolHTTPProto
 
+		opts.HnyEndpoint = strings.TrimSuffix(opts.HnyEndpoint, "/")
+		endpoint := fmt.Sprintf("%s:443", opts.HnyEndpoint)
+
 		otelshutdown, err := otelconfig.ConfigureOpenTelemetry(
 			otelconfig.WithExporterProtocol(protocol),
 			otelconfig.WithServiceName(opts.HnyDataset),
-			otelconfig.WithTracesExporterEndpoint("https://api-dogfood.honeycomb.io:443"),
+			otelconfig.WithTracesExporterEndpoint(endpoint),
 			otelconfig.WithMetricsEnabled(false),
 			otelconfig.WithTracesEnabled(true),
 			otelconfig.WithHeaders(map[string]string{