Use local paths when possible, some AI cleanup

cmd/kat-agent/main.go

@@ -44,7 +44,7 @@ const (
 	clusterUIDKey    = "/kat/config/cluster_uid"
 	clusterConfigKey = "/kat/config/cluster_config" // Stores the JSON of pb.ClusterConfigurationSpec
 	defaultNodeName  = "kat-node"
-	leaderCertCN     = "leader.kat.cluster.local"   // Common Name for leader certificate
+	leaderCertCN     = "leader.kat.cluster.local" // Common Name for leader certificate
 )
 
 func init() {
@@ -75,11 +75,11 @@ func runInit(cmd *cobra.Command, args []string) {
 	pkiDir := pki.GetPKIPathFromClusterConfig(parsedClusterConfig.Spec.BackupPath)
 	caKeyPath := filepath.Join(pkiDir, "ca.key")
 	caCertPath := filepath.Join(pkiDir, "ca.crt")
-	
+
 	// Check if CA already exists
 	_, caKeyErr := os.Stat(caKeyPath)
 	_, caCertErr := os.Stat(caCertPath)
-	
+
 	if os.IsNotExist(caKeyErr) || os.IsNotExist(caCertErr) {
 		log.Printf("CA key or certificate not found. Generating new CA in %s", pkiDir)
 		if err := pki.GenerateCA(pkiDir, caKeyPath, caCertPath); err != nil {
@@ -158,23 +158,23 @@ func runInit(cmd *cobra.Command, args []string) {
 			} else {
 				log.Printf("Cluster UID already exists in etcd. Skipping storage.")
 			}
-			
+
 			// Generate leader's server certificate for mTLS
 			leaderKeyPath := filepath.Join(pkiDir, "leader.key")
 			leaderCSRPath := filepath.Join(pkiDir, "leader.csr")
 			leaderCertPath := filepath.Join(pkiDir, "leader.crt")
-			
+
 			// Check if leader cert already exists
 			_, leaderCertErr := os.Stat(leaderCertPath)
 			if os.IsNotExist(leaderCertErr) {
 				log.Println("Generating leader server certificate for mTLS")
-				
+
 				// Generate key and CSR for leader
 				if err := pki.GenerateCertificateRequest(leaderCertCN, leaderKeyPath, leaderCSRPath); err != nil {
 					log.Printf("Failed to generate leader key and CSR: %v", err)
 				} else {
 					// Read the CSR file
-					csrData, err := os.ReadFile(leaderCSRPath)
+					_, err := os.ReadFile(leaderCSRPath)
 					if err != nil {
 						log.Printf("Failed to read leader CSR file: %v", err)
 					} else {