Frontend settings

Besides the backend settings, several frontend configuration options are available to customize your Fleio installation.

How to edit constants.js files

There are two constants.js files: one for end-user panel and a second one for staff panel.

Full file path on disk for end-user panel file is:


Full file path on disk for staff panel file is:


How to change default language

In order to change the default language you must edit the language field in constants.js file:

var user_config = {
    language: 'en', // default language

If you added custom strings for Fleio, by following the guide available at How to customize Fleio strings, you will have to change ‘en’ with your chosen language (in our example it was ‘en_us’).

Also, if you want to change the default language to all your existing clients you will have run an update query directly on the database, or impersonate each user and change the language.

Change the page size

Fleio uses infinite scroll to display objects list. By default, 20 objects are loaded at once and you can change this default value for end-user or staff user constants.js files.

var user_config = {
    // ...
  paginate_by: '20'
    // ...

Customize page title

The browser’s page title (that is the HTML <title> tag) default format is:

var user_config = {
    // ...
    base_title: '@ - Fleio'
    // ...

Where the @ character is replaced depending on the current page, resulting a title like “Home - Fleio” or “Instanced - Fleio”.

You can redefine the title format in constants.js files.

How to change instance create form display

Instance create form display can be changed using the flavors_as_cards property from the constants.js file.

When set to false, the instance create form will look like this:


When the setting is set to true, the flavors will be displayed as cards. Their description will appear in each card’s body:


Show hide cloud-init user data

You can toggle cloud-init use data field from the create instance form via constants.js files:

var user_config = {
    // ...
  show_userdata_on_new_instance_form: true,
    // ...

Changing local compute storage setting

If you set local_compute_storage_enabled property from the constants.js file to false, local compute storage option when selecting boot source on instance creation will not be available anymore.

By default it is set to true in constants.js files:

var user_config = {
    // ...
  local_compute_storage_enabled: true,
    // ...

Hide volume options for flavors with disk size

If you want to hide the volume options when deploying an instance with a flavor that has disk space configured you will have to set hideVolumeSelectionForFlavorsWithDisk to True in /var/webapps/fleio/frontend/staff/assets/config/staff.config.json.

 // ...
      "hideVolumeSelectionForFlavorsWithDisk": false,
 // ...

This setting defaults to False.

How to change default display mode for items

Change the items_display_mode property from the same constants.js files as stated above to either cardview to display the items as cards or listview to display them like a list. Note that the user will still be able to change the display mode for a page using the button from the top-right side of the page content.

How to add custom menu items and categories

You are able to customize your menu by adding top level menu options with links, menu options underneath existing categories or even add new categories with menu options. To do so, you just need to edit your file (more on that here).

You need to edit some settings (available both for enduser and staff panel). These settings are: CUSTOM_MENU_CATEGORIES_ENDUSER, CUSTOM_MENU_OPTIONS_ENDUSER, CUSTOM_MENU_CATEGORIES_STAFF, CUSTOM_MENU_OPTIONS_STAFF.

To add a category you may follow the following example:

    'Category one': {
        'main_feature': 'core',
        'location': 2,
    'Category two': {
        'main_feature': 'core',
        'location': 3,

You may condition the category by any existing feature name in fleio (more on that here). You can use the core feature if you want your category to be always visible (‘core’ feature is always enabled). Also note the location setting, which allows you to specify where in the menu should the category appear. Note that counting starts from 0. Also, you should be careful not to use the same location for more than 1 custom category because this may raise issues in your application.

To add a menu option underneath a menu category (already existing in fleio or one that you created like described above ), you may use the CUSTOM_MENU_OPTIONS settings for enduser and staff like in the following example:

        'category': 'Category one',
        'label': 'Option one',
        'href': '',
        'open_in_new_tab': True,
        'icon': 'warning',
        'feature': 'core',
        'category': 'Billing',
        'label': 'Custom product',
        'href': '',
        'open_in_new_tab': True,
        'icon': 'product',
        'feature': 'billing',
        'location': 2,

As you may notice, there are several settings that you can use. Use the category attribute to specify under what category the new menu option should be placed, use label attribute to specify what will be the menu option’s name, href attribute for redirecting to a custom link, open_in_new_tab to make users open the link in new tab when clicking it, icon for displaying an icon to the left and feature to condition this menu option by a fleio feature. Again, you can use ‘core’ feature to make sure it will appear forever. Also, you can use the location attribute just like you did for categories.

To add a top level menu option (it will not be under any category) add a new option in the ‘CUSTOM_MENU_OPTIONS_ENDUSER’ setting just like above, but not using the category attribute. So, this may look like this:

        'label': 'Top level',
        'href': '',
        'open_in_new_tab': True,
        'icon': 'warning',
        'feature': 'core',
        'location': 6,

For top level menu options, make sure their location is not the same with one defined for categories.

If you want to move the plugins position you can use the ENDUSER_PLUGINS_MENU_INSERT_INDEX variable. For example, if you want to make sure that the plugins (tickets and domains) are always at the bottom you need to add the following option in the file:


After editing the file, you must restart all the fleio services (see Restarting Fleio).

How to set custom add credit URL

The Add credit button from the end-user’s dashboard can be customized to any link. You can for instance set an external link, if you are using another system (like WHMCS) to handle invoicing and credit card payments.


More on that on ADD_CREDIT_URLS setting documentation.

The Billing panel that shows client’s credit and the Add credit button can be hidden completely through an end-user feature toggle.

How to set custom logout URL

By default your customers will be redirected to the login page when they log out. If you want to set a custom URL you will need to edit two variables, one for each type of frontend.

For AngularJS frontend you need to edit logout_redirect variable available in the following locations:

/var/webapps/fleio/frontend/site/constants/constants.js (end user)
/var/webapps/fleio/frontend/site/staff/constants.js (staff)

For Angular frontend you need to edit the logoutRedirect variable available in:

/var/webapps/fleio/frontend/staff/assets/config/staff.config.json (staff)
/var/webapps/fleio/frontend/reseller/assets/config/reseller.config.json (reseller)

Changing text editor on tickets plugin, etc.

The rich text editor found on tickets plugin, notification templates edit page, etc. can be customized in the constants.js file. All you need to do is to add a new property called tiny_mce_options and define a dictionary with the settings. The example below is the default one, you can find more settings reading the tinymce documentation.

tiny_mce_options: {
    relative_urls: false,
    inline: false,
    plugins : 'link code image lists autolink',
    toolbar: ["undo redo | styleselect | bold italic underline | alignleft aligncenter alignright alignjustify | link code image | bullist numlist | removeformat"],
    skin: 'lightgray',
    theme : 'modern',
    menubar: ''

White label

If you want to remove the small Fleio link that appears at the bottom of the login screen and at the bottom of the left menu, you have to purchase the white-label option.

Changing the top logo is a simple setting and does not require you to pay the white-label fee.

Adding new custom themes

You can add your own custom themes and change the list of themes that a user can choose from on his profile page. In order to do so, add in constants.js files (staff/end-user) your theme definition in the customThemesCallback function.

This may look something like this:

    // ... other settings
    customThemesCallback: function(mdThemingProvider) {
        mdThemingProvider.definePalette('testAccent', {
          '50': '#FF6633',
          '100': '#BBBBBB',
          '200': '#FFFFFF',
          '300': '#FFFFFF',
          '400': '#FFFFFF',
          '500': '#FFFFFF',
          '600': '#FFFFFF',
          '700': '#FFFFFF',
          '800': '#FFFFFF',
          '900': '#FFFFFF',
          'A100': '#FF3919',
          'A200': '#FF3919',
          'A400': '#FF3919',
          'A700': '#FF3919',
          'contrastDefaultColor': 'light'
        mdThemingProvider.definePalette('testPrimary', {
          '50': '#083652',
          '100': '#083652',
          '200': '#083652',
          '300': '#083652',
          '400': '#083652',
          '500': '#083652',
          '600': '#083652',
          '700': '#083652',
          '800': '#083652',
          '900': '#083652',
          'A100': '#083652',
          'A200': '#083652',
          'A400': '#FFFFFF',
          'A700': '#C0CADD',
          'contrastDefaultColor': 'light'
        var testBackground = mdThemingProvider.extendPalette('flLightBackGround' , {
          '600': '#083652'
        mdThemingProvider.definePalette('testBackground', testBackground);

The above is actually a replication of the existing “Dusk” theme. You can name it and add whatever colors you want, you may find more info on AngularJS Material documentation. Once you’ve defined your new theme, you can change the default user theme and the list of themes that appear in the profile page by changing the other two settings: default_theme and registeredThemes. Fleio’s default theme is ‘Spring’ and themes registered by default are: ‘Spring’, ‘Navy’, ‘Dusk’.

This is how your new settings may look like:

    // ... other settings
    registeredThemes: ['Spring', 'Custom',],
    default_theme: 'Custom',

For defining and adding new themes in the frontend panels using Angular framework, read more here: Angular frontend customization.

New menu definition

NOTE: this won’t affect you if you had not previously re-declared the menu definition in any of your constants.js file.

Before 2020.05 release, the menu was defined in frontend and you could override it editing constants.js file for the panel you wanted to edit by redefining it and replacing/removing menu items (not to be confused with backend menu customization setting, which remains unchanged). As we’ve moved the menu definition in backend, if you had redefined it in any constants.js file, you will need to go to Advanced settings file and re-declare the menu again. The menu definitions are variables that store arrays, very similar to how it was before. Those are called: STAFF_MENU, ENDUSER_MENU and RESELLER_MENU. Please take a look in the /var/webapps/fleio/project/fleio/ file for how a menu definition looks like now. You can copy a menu panel definition and place it in the Advanced settings file and start editing/removing menu items as you wish.

Remember to import the MenuItem and MenuCategory classes that are used for defining menu entries before your new definition like this:

from import MenuCategory, MenuItem

Also add the function definition that is used for marking strings for translation at the top of the file:

def _(s):
    # work around for using i18n in settings
    return s

Each parameter of MenuCategory and MenuItem is self explanatory, however note that for a MenuItem you can also define the icon_class, href as strings and open_in_new_tab as boolean. All options can be found in the class definition.

When you are done with your changes, you’ll need to run the following command (depending on your distro) for your changes to appear in frontend:

service uwsgi-fleio reload
service uwsgi reload

Please note that we recommend you use the backend menu customization feature for adding menu items or categories as redefining the menu means you will need to manually keep it up to date with the original menu found in file after each release.

Adding custom headers in requests

You can manipulate headers sent from frontend requests using a settings in constants.js (both staff and end-user). Use the callback interceptorConfig in order to change headers like so:

    // ... other settings
    interceptorConfig: function(config, cookies) {
        // e.g. config.headers['header_name'] = 'header-value';
        return config;

Remember to always return the config that was passed as a parameter to the function. You may also use cookies which is the angularjs cookies service (just named without the dollar sign).

Note: to do the same thing but for the panels that make use of Angular framework, read more here: Angular frontend customization.