Log disk uuid to cloud logging

CHANGELOG.md

@@ -23,6 +23,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Kubernetes version is configured through an entry in `constellation-config.yaml`.
 - Kubernetes version 1.24 is now supported.
 - Kubernetes version 1.22 is now supported.
+- Log the disk UUID to cloud logging for recovery.
 
 ### Changed
 

bootstrapper/cmd/bootstrapper/run.go

@@ -4,6 +4,7 @@ import (
 	"net"
 
 	"github.com/edgelesssys/constellation/bootstrapper/internal/clean"
+	"github.com/edgelesssys/constellation/bootstrapper/internal/diskencryption"
 	"github.com/edgelesssys/constellation/bootstrapper/internal/initserver"
 	"github.com/edgelesssys/constellation/bootstrapper/internal/joinclient"
 	"github.com/edgelesssys/constellation/bootstrapper/internal/logging"
@@ -28,6 +29,15 @@ func run(issuer quoteIssuer, tpm vtpm.TPMOpenFunc, fileHandler file.Handler,
 	log.With(zap.String("version", version)).Infof("Starting bootstrapper")
 	cloudLogger.Disclose("bootstrapper started running...")
 
+	uuid, err := getDiskUUID()
+	if err != nil {
+		log.With(zap.Error(err)).Errorf("Failed to get disk UUID")
+		cloudLogger.Disclose("Failed to get disk UUID")
+	} else {
+		log.Infof("Disk UUID: %s", uuid)
+		cloudLogger.Disclose("Disk UUID: " + uuid)
+	}
+
 	nodeBootstrapped, err := vtpm.IsNodeBootstrapped(tpm)
 	if err != nil {
 		log.With(zap.Error(err)).Fatalf("Failed to check if node was previously bootstrapped")
@@ -60,6 +70,15 @@ func run(issuer quoteIssuer, tpm vtpm.TPMOpenFunc, fileHandler file.Handler,
 	cloudLogger.Disclose("bootstrapper done")
 }
 
+func getDiskUUID() (string, error) {
+	disk := diskencryption.New()
+	if err := disk.Open(); err != nil {
+		return "", err
+	}
+	defer disk.Close()
+	return disk.UUID()
+}
+
 type clusterInitJoiner interface {
 	joinclient.ClusterJoiner
 	initserver.ClusterInitializer