Added a new test script.

ca.go

@@ -291,14 +291,9 @@ func parseValidity(validity string) (time.Duration, error) {
 }
 
 func SavePEM(filename string, data []byte, secure bool) error {
-	if !overwrite {
-		if _, err := os.Stat(filename); err == nil {
-			return fmt.Errorf("file %s already exists (overwrite not allowed)", filename)
-		} else if !os.IsNotExist(err) {
-			return fmt.Errorf("could not check file %s: %v", filename, err)
-		}
+	if _, err := os.Stat(filename); err == nil {
+		return fmt.Errorf("file %s already exists", filename)
 	}
-
 	if secure {
 		return os.WriteFile(filename, data, 0600)
 	} else {
@@ -453,22 +448,21 @@ func InitCA() error {
 	return nil
 }
 
-// Helper: issue a single certificate and key, save to files, return error if any
-func issueSingleCertificate(def CertificateDefinition) error {
+func issueSingleCertificate(def CertificateDefinition, i int, n int) (bool, error) {
 	// Validate Name
 
 	isValidName, err := regexp.MatchString(`^[A-Za-z0-9_-]+$`, def.Name)
 	if err != nil {
-		return fmt.Errorf("error validating certificate name: %v", err)
+		return false, fmt.Errorf("error validating certificate name: %v", err)
 	}
 
 	if !isValidName {
-		return fmt.Errorf("certificate name must be specified and contain only letters, numbers, dash, or underscore")
+		return false, fmt.Errorf("certificate name must be specified and contain only letters, numbers, dash, or underscore")
 	}
 
 	// Check if the certificate is in database, fail if it is.
 	if caState.FindByName(def.Name, false) != nil {
-		return fmt.Errorf("certificate %s already exists and is valid.", def.Name)
+		return false, fmt.Errorf("certificate %s already exists and is valid.", def.Name)
 	}
 
 	// Initialize Subject if not specified
@@ -477,18 +471,44 @@ func issueSingleCertificate(def CertificateDefinition) error {
 	}
 
 	// Add default dns SAN for server/server-only if none specified
-	if (def.Type == "server" || def.Type == "server-only") && len(def.SAN) == 0 {
-		def.SAN = append(def.SAN, "dns:"+def.Subject)
+	if strings.Contains(def.Type, "server") && len(def.SAN) == 0 {
+		// Extract CN if subject is a DN, else use subject as is
+		cn := def.Subject
+		if isDNFormat(def.Subject) {
+			dn := parseDistinguishedName(def.Subject)
+			if dn.CommonName != "" {
+				cn = dn.CommonName
+			}
+		}
+		def.SAN = append(def.SAN, "dns:"+cn)
+	}
+
+	// Check if the certificate is being issued in dry run mode
+	if dryRun {
+		msg := fmt.Sprintf("Would issue certificate for '%s' (dry run).", def.Subject)
+		if n > 1 {
+			fmt.Printf("[%d/%d] %s\n", i+1, n, msg)
+		} else {
+			fmt.Printf("%s\n", msg)
+		}
+		return false, nil
+	} else {
+		msg := fmt.Sprintf("Issuing certificate for '%s'... ", def.Subject)
+		if n > 1 {
+			fmt.Printf("[%d/%d] %s", i+1, n, msg)
+		} else {
+			fmt.Printf("%s", msg)
+		}
 	}
 
 	priv, err := rsa.GenerateKey(rand.Reader, 4096)
 	if err != nil {
-		return fmt.Errorf("failed to generate private key: %v", err)
+		return false, fmt.Errorf("failed to generate private key: %v", err)
 	}
 	serialNumberLimit := new(big.Int).Lsh(big.NewInt(1), 128)
 	serialNumber, err := rand.Int(rand.Reader, serialNumberLimit)
 	if err != nil {
-		return fmt.Errorf("failed to generate serial number: %v", err)
+		return false, fmt.Errorf("failed to generate serial number: %v", err)
 	}
 
 	var validityDur time.Duration
@@ -499,7 +519,7 @@ func issueSingleCertificate(def CertificateDefinition) error {
 
 	validityDur, err = parseValidity(validity)
 	if err != nil {
-		return fmt.Errorf("invalid validity value: %v", err)
+		return false, fmt.Errorf("invalid validity value: %v", err)
 	}
 
 	var subjectPKIX pkix.Name
@@ -532,7 +552,7 @@ func issueSingleCertificate(def CertificateDefinition) error {
 		} else if n, _ := fmt.Sscanf(sLower, "email:%s", &val); n == 1 {
 			certTmpl.EmailAddresses = append(certTmpl.EmailAddresses, val)
 		} else {
-			return fmt.Errorf("invalid SAN format: %s", s)
+			return false, fmt.Errorf("invalid SAN format: %s", s)
 		}
 	}
 
@@ -552,13 +572,13 @@ func issueSingleCertificate(def CertificateDefinition) error {
 		case "email":
 			certTmpl.ExtKeyUsage = append(certTmpl.ExtKeyUsage, x509.ExtKeyUsageEmailProtection)
 		default:
-			return fmt.Errorf("unknown certificate type. Use one of: client, server, code-signing, email")
+			return false, fmt.Errorf("unknown certificate type. Use one of: client, server, code-signing, email")
 		}
 	}
 
 	certDER, err := x509.CreateCertificate(rand.Reader, &certTmpl, caCert, &priv.PublicKey, caKey)
 	if err != nil {
-		return fmt.Errorf("failed to create certificate: %v", err)
+		return false, fmt.Errorf("failed to create certificate: %v", err)
 	}
 	certPEM := pem.EncodeToMemory(&pem.Block{Type: "CERTIFICATE", Bytes: certDER})
 	keyPEM := pem.EncodeToMemory(&pem.Block{Type: "RSA PRIVATE KEY", Bytes: x509.MarshalPKCS1PrivateKey(priv)})
@@ -566,29 +586,12 @@ func issueSingleCertificate(def CertificateDefinition) error {
 	certFile := filepath.Join(caConfig.Paths.Certificates, def.Name+".crt.pem")
 	keyFile := filepath.Join(caConfig.Paths.PrivateKeys, def.Name+".key.pem")
 	if err := SavePEM(certFile, certPEM, false); err != nil {
-		return fmt.Errorf("error saving certificate: %v", err)
+		return false, fmt.Errorf("error saving certificate: %v", err)
 	}
 	if err := SavePEM(keyFile, keyPEM, true); err != nil {
-		return fmt.Errorf("error saving key: %v", err)
+		return false, fmt.Errorf("error saving key: %v", err)
 	}
-	if verbose {
-		fmt.Printf(`
-Certificate:
-    Name:     %s
-    Subject:  %s
-    Type:     %s
-    Validity: %s
-    SAN:      %v
-`,
-			def.Name,
-			def.Subject,
-			def.Type,
-			def.Validity,
-			def.SAN,
-		)
-	}
-
-	caState.UpdateCAStateAfterIssue(
+	err = caState.UpdateCAStateAfterIssue(
 		caConfig.SerialType,
 		def.Name,
 		def.Subject,
@@ -596,11 +599,49 @@ Certificate:
 		serialNumber,
 		validityDur,
 	)
-	return nil
+
+	if err != nil {
+		return false, fmt.Errorf("error updating CA state: %v", err)
+	}
+
+	if !verbose {
+		fmt.Printf("done.\n")
+	} else {
+		fmt.Printf(`done.
+Certificate generated:
+    Name:     %s
+    Subject:  %s
+    Type:     %s
+    Validity: %s
+    SANs:
+`,
+			def.Name,
+			def.Subject,
+			def.Type,
+			def.Validity,
+		)
+		for _, san := range def.SAN {
+			parts := strings.SplitN(san, ":", 2)
+			if len(parts) == 2 {
+				fmt.Printf("        %s (%s)\n", parts[1], parts[0])
+			} else {
+				fmt.Printf("        %s\n", san)
+			}
+		}
+	}
+
+	if err := SaveCAState(); err != nil {
+		// If saving CA state fails, we still return success for the certificate issuance
+		fmt.Printf("WARNING: %v\n", err)
+		fmt.Println("CA state not saved, but certificate issued and saved successfully.")
+		return true, fmt.Errorf("Error saving CA state: %v", err)
+	}
+
+	return true, nil
 }
 
 // A prototype of certificate provisioning function
-func ProvisionCertificates(filePath string, overwrite bool, dryRun bool, verbose bool) error {
+func ProvisionCertificates(filePath string) error {
 	err := LoadCA()
 
 	if err != nil {
@@ -647,27 +688,18 @@ func ProvisionCertificates(filePath string, overwrite bool, dryRun bool, verbose
 	n := len(certDefs.Certificates)
 	// No errors so far, now we can issue certificates
 	for i := range certDefs.Certificates {
-		fmt.Printf("[%d/%d] Issuing %s... ", i+1, n, certDefs.Certificates[i].Name)
-
-		if dryRun {
-			fmt.Printf("(dry run)\n")
-			successes++
-			continue
-		}
-
-		err = issueSingleCertificate(certDefs.Certificates[i])
+		issued, err := issueSingleCertificate(certDefs.Certificates[i], i, n)
 		if err != nil {
 			fmt.Printf("error: %v\n", err)
 			errors++
 		} else {
-			if !verbose {
-				fmt.Printf("done\n")
+			if issued {
+				successes++
 			}
-			successes++
 		}
 	}
 
-	fmt.Printf("Provisioning complete: %d succeeded, %d failed.\n", successes, errors)
+	fmt.Printf("Provisioning complete: %d succeeded, %d failed, %d skipped.\n", successes, errors, n-successes-errors)
 
 	err = SaveCAState()
 	if err != nil {
@@ -677,38 +709,23 @@ func ProvisionCertificates(filePath string, overwrite bool, dryRun bool, verbose
 	return nil
 }
 
-func IssueCertificate(certDef CertificateDefinition, overwrite bool, dryRun bool, verbose bool) error {
+func IssueCertificate(def CertificateDefinition) error {
 	err := LoadCA()
 	if err != nil {
 		fmt.Fprintf(os.Stderr, "ERROR: %v\n", err)
 		os.Exit(1)
 	}
 
-	if certDef.Subject == "" {
-		certDef.Subject = certDef.Name
+	if def.Subject == "" {
+		def.Subject = def.Name
 	}
 
 	// Render templates in the certificae subject and SAN fields
-	variables := map[string]string{"Name": certDef.Name}
-	certDef.RenderTemplates(variables)
+	variables := map[string]string{"Name": def.Name}
+	def.RenderTemplates(variables)
 
-	if dryRun {
-		fmt.Printf("Would issue %s certificate for '%s' (dry run)\n", certDef.Type, certDef.Subject)
-		return nil
-	}
-
-	err = issueSingleCertificate(certDef)
-
-	if err != nil {
-		return err
-	}
-
-	fmt.Printf("%s certificate and key for '%s' generated.\n", certDef.Type, certDef.Subject)
-	if err := SaveCAState(); err != nil {
-		fmt.Printf("Error saving CA state: %v", err)
-	}
-
-	return nil
+	_, err = issueSingleCertificate(def, 1, 1)
+	return err
 }
 
 // Helper: check if string looks like a DN (contains at least CN=...)

main.go

@@ -8,7 +8,6 @@ import (
 )
 
 // Global flags available to all commands
-var overwrite bool
 var dryRun bool
 var verbose bool
 
@@ -46,7 +45,6 @@ func main() {
 	}
 
 	// Define persistent flags (global for all commands)
-	rootCmd.PersistentFlags().BoolVar(&overwrite, "overwrite", false, "Allow overwriting existing files")
 	rootCmd.PersistentFlags().BoolVar(&verbose, "verbose", false, "Print detailed information about each processed certificate")
 	rootCmd.PersistentFlags().BoolVar(&dryRun, "dry-run", false, "Validate and show what would be created, but do not write files (batch mode)")
 	rootCmd.PersistentFlags().StringVar(&caConfigPath, "config", "ca_config.hcl", "Path to CA configuration file")
@@ -95,7 +93,7 @@ func main() {
 				Type:     certType,
 				Validity: validity,
 				SAN:      san,
-			}, overwrite, dryRun, verbose)
+			})
 
 			if err != nil {
 				fmt.Fprintf(os.Stderr, "ERROR: %v\n", err)
@@ -120,7 +118,7 @@ func main() {
 		Short: "Provision certificates from a batch file (HCL)",
 		Run: func(cmd *cobra.Command, args []string) {
 
-			err := ProvisionCertificates(provisionFile, overwrite, false, verbose)
+			err := ProvisionCertificates(provisionFile)
 
 			if err != nil {
 				fmt.Fprintf(os.Stderr, "ERROR: %v\n", err)

run-test-2.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+if [ "-v" == "$1" ]; then
+    VERBOSE="--verbose"
+    shift
+else
+    VERBOSE=""
+fi
+
+./build.sh
+rm -rf docker_ca
+build/lab-ca $VERBOSE --config docker_ca.hcl initca
+build/lab-ca $VERBOSE --config docker_ca.hcl provision --file docker.hcl