MINOR: runtime: add support for dumping SSL certificates

Author: oliwer

runtime/certs.go

@@ -242,3 +242,15 @@ func (s *SingleRuntime) DeleteCertificate(storageName string) error {
 	}
 	return nil
 }
+
+func (s *SingleRuntime) DumpCertificate(filename string) (string, error) {
+	if filename == "" {
+		return "", fmt.Errorf("%s %w", "Argument filename empty", native_errors.ErrGeneral)
+	}
+	cmd := "dump ssl cert " + filename
+	response, err := s.ExecuteWithResponse(cmd)
+	if err != nil {
+		return "", fmt.Errorf("%s %w", err.Error(), native_errors.ErrGeneral)
+	}
+	return response, nil
+}

runtime/interface.go

@@ -155,6 +155,7 @@ type SSL interface {
 	ShowCerts() (models.SslCertificates, error)
 	GetCert(name string) (*models.SslCertificate, error)
 	ShowCertificate(name string) (*models.SslCertificate, error)
+	DumpCertificate(name string) (string, error)
 	NewCertEntry(name string) error
 	SetCertEntry(name, payload string) error
 	CommitCertEntry(name string) error

runtime/runtime_client.go

@@ -1245,6 +1245,18 @@ func (c *client) ShowCertificate(name string) (*models.SslCertificate, error) {
 	return cert, nil
 }
 
+// DumpCertificate returns the contents of a certificate as a PEM file
+func (c *client) DumpCertificate(name string) (string, error) {
+	if !c.runtime.IsValid() {
+		return "", errors.New("no valid runtime found")
+	}
+	pem, err := c.runtime.DumpCertificate(name)
+	if err != nil {
+		return "", fmt.Errorf("%s %w", c.runtime.socketPath, err)
+	}
+	return pem, nil
+}
+
 // ShowCrlFiles returns Crl files description from runtime
 func (c *client) ShowCrlFiles() (models.SslCrls, error) {
 	if !c.runtime.IsValid() {