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Theming and Branding

Caution

The Helm chart installation method has been deprecated and will be removed earliest 6 months after deprecation (around November 2026). We urge you to switch to a gardener-operator-based installation. When deploying the dashboard using the Gardener Operator, you can configure theming and branding via a ConfigMap referenced by .spec.virtualCluster.gardener.gardenerDashboard.frontendConfigMapRef within the Garden resource.

Motivation

Gardener landscape administrators should have the possibility to change the appearance and the branding of the Gardener Dashboard via configuration without the need to touch the code.

Branding

It is possible to change the branding of the Gardener Dashboard when using the helm chart in the frontendConfig.branding map. The following configuration properties are supported:

name description default
documentTitle Title of the browser window Gardener Dashboard
productName Name of the Gardener product Gardener
productTitle Title of the Gardener product displayed below the logo. It could also contain information about the specific Gardener instance (e.g. Development, Canary, Live) Gardener
productTitleSuperscript Superscript next to the product title. To supress the superscript set to false Production version (e.g 1.73.1)
productSlogan Slogan that is displayed under the product title and on the login page Universal Kubernetes at Scale
productLogoUrl URL for the product logo. You can also use data: scheme for development. For production it is recommended to provide static assets /static/assets/logo.svg
teaserHeight Height of the teaser in the GMainNavigation component 200
teaserTemplate Custom HTML template to replace to teaser content refer to GTeaser
loginTeaserHeight Height of the login teaser in the GLogin component 260
loginTeaserTemplate Custom HTML template to replace to login teaser content refer to GLoginTeaser
loginFooterHeight Height of the login footer in the GLogin component 24
loginFooterTemplate Custom HTML template to replace to login footer content refer to GLoginFooter
loginHints Links { title: string; href: string; } to product related sites shown below the login button undefined
oidcLoginTitle Title of tabstrip for loginType OIDC OIDC
oidcLoginText Text show above the login button on the OIDC tabstrip Press Login to be redirected to
configured OpenID Connect Provider.

Vendor Branding

You can customize the appearance of built-in vendors displayed in the dashboard. This includes overriding the display name, icon, sorting, and order of cloud provider vendors and machine image vendors. In addition, you can configure custom vendors.

Vendor customization is configured in the arrays frontendConfig.branding.infraVendors, frontendConfig.branding.dnsVendors, and frontendConfig.branding.machineImageVendors. Each entry must be an object with a name key that identifies the vendor. The following configuration properties are supported:

name usage
name Unique vendor identifier (required)
displayName Name displayed in the dashboard
weight Sorting weight. Lower values appear first. See the default weights in the built-in infrastructure, DNS, and machine image vendor registries.
icon File name of the icon located in the public/static/assets folder. See Logos and Icons for instructions on replacing assets

Colors

Gardener Dashboard has been built with Vuetify. We use Vuetify's built-in theming support to centrally configure colors that are used throughout the web application. Colors can be configured for both light and dark themes. Configuration is done via the helm chart, see the respective theme section there. Colors can be specified as HTML color code (e.g. #FF0000 for red) or by referencing a color (e.g grey.darken3 or shades.white) from Vuetify's Material Design Color Pack.

The following colors can be configured:

name usage
primary icons, chips, buttons, popovers, etc.
anchor links
main-background main navigation, login page
main-navigation-title text color on main navigation
toolbar-background background color for toolbars in cards, dialogs, etc.
toolbar-title text color for toolbars in cards, dialogs, etc.
action-button buttons in tables and cards, e.g. cluster details page
info notification info popups, texts and status tags
success notification success popups, texts and status tags
warning notification warning popups, texts and status tags
error notification error popups, texts and status tags
unknown status tags with unknown severity
... all other Vuetify theme colors

If you use the helm chart, you can configure those with frontendConfig.themes.light for the light theme and frontendConfig.themes.dark for the dark theme. The customization example below shows a possible custom color theme configuration.

Logos and Icons

You can customize the Dashboard logo and icons by creating a ConfigMap with the filenames as keys and the base64-encoded image data as values. This allows you to override any file that exists under public/static/assets by specifying the filename as the key.

Replace Assets

You can replace individual icons in the assets folder when deploying the Dashboard via the Helm chart by configuring the frontendConfig.assets map.

When you deploy the dashboard using the Gardener Operator, you can reference the ConfigMap using .spec.virtualCluster.gardener.gardenerDashboard.assetsConfigMapRef within the Garden resource.

The Dashboard backend will serve these custom asset files when available and fall back to the built-in ones otherwise.

Tip

As ConfigMap size is limited, you can use brotli compressed files, e.g. logo.svg.br. Consider using Brotli compression for highly compressible formats such as SVG.

Encoding Assets

The files must be base64-encoded before being added to your Helm chart’s values.yaml. You can generate the encoded content using the following command on Linux (works in bash or zsh):

If you use macOS, install coreutils with Homebrew (brew install coreutils) or remove the -w0 parameter from the base64 command.

cat << EOF
###
### COPY EVERYTHING BELOW THIS LINE
###

assets:
  favicon-16x16.png: |
    $(cat frontend/public/static/assets/favicon-16x16.png | base64 -w0)
  favicon-32x32.png: |
    $(cat frontend/public/static/assets/favicon-32x32.png | base64 -w0)
  favicon-96x96.png: |
    $(cat frontend/public/static/assets/favicon-96x96.png | base64 -w0)
  favicon.ico: |
    $(cat frontend/public/static/assets/favicon.ico | base64 -w0)
  logo.svg: |
    $(cat frontend/public/static/assets/logo.svg | base64 -w0)
EOF

After generating the output, copy the base64-encoded strings into your values.yaml file where needed.

Customization Example

The following example configuration in values.yaml shows most of the possibilities to achieve a custom theming and branding:

global:
  dashboard:
    frontendConfig:
      # ...
      branding:
        productName: Nucleus
        productTitle: Nucleus
        productSlogan: Supercool Cluster Service
        teaserHeight: 160
        teaserTemplate: |
          <div
            class="text-center px-2"
          >
            <a
              href="/"
              class="text-decoration-none"
            >
              <img
                src="{{ productLogoUrl }}"
                width="80"
                height="80"
                alt="{{ productName }} Logo"
                class="pointer-events-none"
              >
              <div
                class="font-weight-thin text-grey-lighten-4"
                style="font-size: 32px; line-height: 32px; letter-spacing: 2px;"
              >
                {{ productTitle }}
              </div>
              <div class="text-body-1 font-weight-normal text-primary mt-1">
                {{ productSlogan }}
              </div>
            </a>
          </div>
        loginTeaserHeight: 296
        loginTeaserTemplate: |
          <div
            class="d-flex flex-column align-center justify-center bg-main-background-darken-1 pa-3"
            style="min-height: {{ minHeight }}px"
          >
            <img
              src="{{ productLogoUrl }}"
              alt="Login to {{ productName }}"
              width="140"
              height="140"
              class="mt-2"
            >
            <div class="text-h3 text-center font-weight-thin text-white mt-4">
              {{ productTitle }}
            </div>
            <div class="text-h5 text-center font-weight-light text-primary mt-1">
              {{ productSlogan }}
            </div>
          </div>
        loginFooterTemplate: |
          <div class="text-anchor text-caption">
            Copyright 2023 by Nucleus Corporation
          </div>
        loginHints:
          - title: Support
            href: https://gardener.cloud
          - title: Documentation
            href: https://gardener.cloud/docs
        oidcLoginTitle: IDS
        oidcLoginText: Press LOGIN to be redirected to the Nucleus Identity Service.
      themes:
        light:
          primary: '#354a5f'
          anchor: '#5b738b'
          main-background: '#354a5f'
          main-navigation-title: '#f5f6f7'
          toolbar-background: '#354a5f'
          toolbar-title: '#f5f6f7'
          action-button: '#354a5f'
        dark:
          primary: '#5b738b'
          anchor: '#5b738b'
          background: '#273849'
          surface: '#1d2b37'
          main-background: '#1a2733'
          main-navigation-title: '#f5f6f7'
          toolbar-background: '#0e1e2a'
          toolbar-title: '#f5f6f7'
          action-button: '#5b738b'
      assets:
        favicon-16x16.png: |
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        favicon-32x32.png: |
          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        favicon.ico: |
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        logo.svg: |
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Login Screen

In this example, the login screen now displays the custom logo in a different size. The product title is also shown, and the OIDC tabstrip title and text have been changed to a custom-specific one. Product-related links are displayed below the login button. The footer contains a copyright notice for the custom company.

Teaser in Main Navigation

The template approach is also used in this case to change the font-size and line-height of the product title and slogan. The product version (superscript) is omitted.

About Dialog

By changing the productLogoUrl and the productName, the changes automatically effect the apperance of the About Dialog and the document title.