Fix application install logic when creating cluster (#289)

* Update kubernetes_create.go

* Update kubernetes_create.go

Co-authored-by: Haardik Dharma <haardik@civo.com>

cmd/kubernetes/kubernetes_create.go

@@ -279,20 +279,25 @@ var kubernetesCreateCmd = &cobra.Command{
 
 // InstallApps returns the list of applications to install
 func InstallApps(defaultApps []string, apps, removeApps string) []string {
-	var iApps []string
+	var appsToInstall []string
+
 	if apps != "" {
-		iApps = strings.Split(apps, ",")
+		appsToInstall = strings.Split(apps, ",")
+		appsToInstall = append(appsToInstall, defaultApps...)
+	} else {
+		appsToInstall = defaultApps
 	}
-	iApps = append(defaultApps, iApps...)
 
 	if removeApps != "" {
-		for i, v := range iApps {
-			for _, v2 := range strings.Split(removeApps, ",") {
-				if v == v2 {
-					iApps = append(iApps[:i], iApps[i+1:]...)
+		appsToRemove := strings.Split(removeApps, ",")
+		for _, appToRemove := range appsToRemove {
+			for i, app := range appsToInstall {
+				if app == appToRemove {
+					appsToInstall = append(appsToInstall[:i], appsToInstall[i+1:]...)
 				}
 			}
 		}
 	}
-	return iApps
+
+	return appsToInstall
 }