data8/_includes/buttons/jupyterhub.html

{% if site.use_jupyterhub_button %}

{% if site.use_jupyterlab %}
    {% assign hub_app="lab" %}
{% else %}
    {% assign hub_app="notebook" %}
{% endif %}

{% capture interact_url_jupyterhub %}hub/user-redirect/git-pull?repo={{ site.binder_repo_base }}/{{ site.binder_repo_org }}/{{ site.binder_repo_name }}&branch={{ site.binder_repo_branch }}&subPath={{ page.interact_link | url_encode }}&app={{ hub_app }}{% endcapture %}
{% capture interact_icon_jupyterhub %}{{ site.images_url | relative_url }}/logo_jupyterhub.svg{% endcapture %}
<a href="{{ site.jupyterhub_url }}/{{ interact_url_jupyterhub }}"><button class="interact-button" id="interact-button-jupyterhub"><img class="interact-button-logo" src="{{ interact_icon_jupyterhub }}" alt="Interact" />{{ site.jupyterhub_interact_text }}</button></a>

{% endif %}