Corrected certificate managment for OCI helm charts (#16656) (#17321)

Signed-off-by: Andrew Block <andy.block@gmail.com>
Co-authored-by: Andrew Block <andy.block@gmail.com>
Co-authored-by: Soumya Ghosh Dastidar <44349253+gdsoumya@users.noreply.github.com>

util/helm/cmd.go

@@ -91,6 +91,28 @@ func (c *Cmd) RegistryLogin(repo string, creds Creds) (string, error) {
 		args = append(args, "--password", creds.Password)
 	}
 
+	if creds.CAPath != "" {
+		args = append(args, "--ca-file", creds.CAPath)
+	}
+
+	if len(creds.CertData) > 0 {
+		filePath, closer, err := writeToTmp(creds.CertData)
+		if err != nil {
+			return "", err
+		}
+		defer argoio.Close(closer)
+		args = append(args, "--cert-file", filePath)
+	}
+
+	if len(creds.KeyData) > 0 {
+		filePath, closer, err := writeToTmp(creds.KeyData)
+		if err != nil {
+			return "", err
+		}
+		defer argoio.Close(closer)
+		args = append(args, "--key-file", filePath)
+	}
+
 	if creds.InsecureSkipVerify {
 		args = append(args, "--insecure")
 	}
@@ -238,6 +260,25 @@ func (c *Cmd) PullOCI(repo string, chart string, version string, destination str
 	if creds.CAPath != "" {
 		args = append(args, "--ca-file", creds.CAPath)
 	}
+
+	if len(creds.CertData) > 0 {
+		filePath, closer, err := writeToTmp(creds.CertData)
+		if err != nil {
+			return "", err
+		}
+		defer argoio.Close(closer)
+		args = append(args, "--cert-file", filePath)
+	}
+
+	if len(creds.KeyData) > 0 {
+		filePath, closer, err := writeToTmp(creds.KeyData)
+		if err != nil {
+			return "", err
+		}
+		defer argoio.Close(closer)
+		args = append(args, "--key-file", filePath)
+	}
+
 	if creds.InsecureSkipVerify && c.insecureSkipVerifySupported {
 		args = append(args, "--insecure-skip-tls-verify")
 	}