luci-app-whoogle/luasrc/view/whoogle/status.htm

<%
local util  = require "luci.util"
local container_status = util.trim(util.exec("/usr/libexec/apps/whoogle/whoogle.sh status"))
local container_running = string.match(string.lower(container_status), "^up%W")
-%>
<div class="cbi-value">
    <div class="cbi-value-field">
        <% if container_running then %>
            <button class="cbi-button cbi-button-success" disabled="true"><%=container_status%></button>
        <% else %>
            <button class="cbi-button cbi-button-negative" disabled="true"><%=container_status%></button>
        <% end %>

        <% if container_running then %>
        <%
        local port=util.trim(util.exec("/usr/libexec/apps/whoogle/whoogle.sh port"))
        if port == "" then
            port="5000"
        end
        -%>
        <input type="button" class="btn cbi-button cbi-button-apply" name="start" value="<%:Open Whoogle%>" onclick="window.open('http://'+location.hostname+':<%=port%>/', '_blank')">
        <% end %>
    </div>
</div>