add cluster path if exist

src/main/java/net/geant/nmaas/nmservice/deployment/containerorchestrators/kubernetes/components/helm/HelmCommand.java

@@ -16,6 +16,8 @@ public abstract class HelmCommand implements Command {
     protected static final String HELM_VERSION_2 = "v2";
     protected static final String HELM_VERSION_3 = "v3";
 
+    protected static final String KUBECONFIG = "--kubeconfig";
+
     protected String command;
 
     @Override

src/main/java/net/geant/nmaas/nmservice/deployment/containerorchestrators/kubernetes/components/helm/HelmCommandExecutor.java

@@ -46,11 +46,11 @@ public class HelmCommandExecutor {
         this.enableTls = enableTls;
     }
 
-    void executeHelmInstallCommand(String namespace, String releaseName, KubernetesTemplate template, Map<String, String> arguments) {
-        executeInstall(namespace, releaseName, template, arguments);
+    void executeHelmInstallCommand(String namespace, String releaseName, KubernetesTemplate template, Map<String, String> arguments, String kubeConfigPath) {
+        executeInstall(namespace, releaseName, template, arguments, kubeConfigPath);
     }
 
-    private void executeInstall(String namespace, String releaseName, KubernetesTemplate template, Map<String, String> arguments) {
+    private void executeInstall(String namespace, String releaseName, KubernetesTemplate template, Map<String, String> arguments, String kubeConfigPath) {
         try {
             HelmInstallCommand command = HelmInstallCommand.commandWithRepo(
                     helmVersion,
@@ -59,7 +59,8 @@ public class HelmCommandExecutor {
                     arguments,
                     constructChartNameWithRepo(template.getChart().getName()),
                     template.getChart().getVersion(),
-                    enableTls
+                    enableTls,
+                    kubeConfigPath
             );
             commandExecutor.execute(command);
         } catch (CommandExecutionException e) {

src/main/java/net/geant/nmaas/nmservice/deployment/containerorchestrators/kubernetes/components/helm/commands/HelmInstallCommand.java

@@ -25,7 +25,7 @@ public class HelmInstallCommand extends HelmCommand {
      * @param enableTls    flag indicating if tls option should be added
      * @return complete command object
      */
-    public static HelmInstallCommand commandWithRepo(String helmVersion, String namespace, String releaseName, Map<String, String> values, String chartName, String chartVersion, boolean enableTls) {
+    public static HelmInstallCommand commandWithRepo(String helmVersion, String namespace, String releaseName, Map<String, String> values, String chartName, String chartVersion, boolean enableTls, String kubeConfigPath) {
         StringBuilder sb = buildBaseInstallCommand(helmVersion, namespace, releaseName, values);
         if (chartName == null || chartName.isEmpty()) {
             throw new IllegalArgumentException("Chart name can't be null or empty");
@@ -35,6 +35,10 @@ public class HelmInstallCommand extends HelmCommand {
             sb.append(SPACE).append(OPTION_VERSION).append(SPACE).append(chartVersion);
         }
         addTlsOptionIfRequired(helmVersion, enableTls, sb);
+
+        if(kubeConfigPath != null && !kubeConfigPath.isEmpty()) {
+            sb.append(SPACE).append(KUBECONFIG).append(SPACE).append(kubeConfigPath);
+        }
         return new HelmInstallCommand(sb.toString());
     }