text handler and experiment logging

launcher/internal/experiments/experiments.go

@@ -4,6 +4,7 @@ package experiments
 import (
 	"encoding/json"
 	"fmt"
+	"log/slog"
 	"os"
 )
 
@@ -44,3 +45,14 @@ func readJSONInput(b []byte) (Experiments, error) {
 	}
 	return experiments, nil
 }
+
+func (e Experiments) Log(logger *slog.Logger) {
+	logger.Info("Experiment settings",
+		slog.Bool("test_feature", e.EnableTestFeatureForImage),
+		slog.Bool("signed_container_image", e.EnableSignedContainerImage),
+		slog.Bool("on_demand_attestation", e.EnableOnDemandAttestation),
+		slog.Bool("memory_monitoring", e.EnableMemoryMonitoring),
+		slog.Bool("signed_container_cache", e.EnableSignedContainerCache),
+		slog.Bool("measure_memory_monitoring", e.EnableMeasureMemoryMonitor),
+	)
+}

launcher/launcher/main.go

@@ -83,7 +83,7 @@ func main() {
 	}
 	defer serialConsole.Close()
 
-	handler := slog.NewJSONHandler(io.MultiWriter(os.Stdout, serialConsole), nil)
+	handler := slog.NewTextHandler(io.MultiWriter(os.Stdout, serialConsole), nil)
 	logger = slog.New(handler)
 
 	logger.Info(welcomeMessage, "build_commit", BuildCommit)
@@ -122,6 +122,7 @@ func main() {
 		logger.Warn(fmt.Sprintf("failed to read experiment file: %v\n", err))
 		// do not fail if experiment retrieval fails
 	}
+	e.Log(logger)
 	launchSpec.Experiments = e
 
 	defer func() {