services.html.erb

<%
# This template can be configure the following way with environment variables
# Environment variables to filter services/instances
#   SERVICES_TAG_FILTER: basic tag filter for service (default HTTP)
require 'base64'
require 'json'
require 'date'

  services_tag_filter = ENV['SERVICES_TAG_FILTER']
  def status_to_class(status)
    if status == 'passing'
      'success'
    elsif status == 'warning'
      'warning'
    elsif status == 'critical'
      'danger'
    else
      'info'
    end
  end

  def compute_node_status(snode)
    state = 'passing'
    return state unless snode['Checks']
    snode['Checks'].each do |c|
      case c['Status']
      when 'critical'
        return 'critical'
      when 'warning'
        state = 'warning'
      end
    end
    state
  end

  def compute_service_status(snodes)
    passing = 0
    warning = 0
    critical = 0
    sum = 0
    snodes.each do |snode|
      st = compute_node_status(snode)
      sum += 1
      case st
      when 'passing'
        passing += 1
      when 'warning'
        warning += 1
      else
        critical += 1
      end
    end
    [passing, warning, critical, sum]
  end
  %><%= render_file('common/header.html.erb', title: 'Services') %>
<nav>
  <ul>
    <li><a href="#datacenters">DataCenters</a></li>
    <li><a href="#list_services">List of services</a></li>
    <li><a href="#services">Services with instances</a></li>
  </ul>
</nav>

<div class="container-fluid">
  <div class="row">
    <nav id="list_services" class="col-2">
      <ul>
        <%
          all_services = services(tag: services_tag_filter)
          all_services.each do |service_name, tags|
        %>
        <li><a title="<%= tags.sort.join(', ') %>" href="#service_<%= service_name %>"><%= service_name %></a></li>
        <% end %>
      </ul>
    </nav>
    <main class="col-10">
      <h1 id="datacenters">List of all datacenters</h1>
        <ul>
        <% datacenters.each do |dc| %>
          <li id="dc_<%=dc %>%"><%= dc %> with <%= services(dc:dc).keys.count %> services, <%= nodes(dc:dc).count %> nodes</li>
        <% end %>
        </ul>
      <h1 id="services">List all services instances sorted by node name</h1>
      <% services.each do |service_name, tags|
          service_group = service(service_name)
          nodes_sorted = service_group.sort {|a,b| a['Node']['Node'] <=> b['Node']['Node'] }
          passing, warning, critical, sum = compute_service_status(nodes_sorted)
          service_state = 'passing'
          service_state = 'warning' if warning > 0
          service_state = 'critical' if critical > 0
      %>
      <div class="service <%= service_state %>" id="service_<%= service_name %>">
        <h2 class="text-<%= status_to_class(service_state) %>" title="<%= tags.join(', ') %>"><%= service_name %><a class="qlink" href="#service_<%= service_name %>">&#128279;</a></h2>
        <% if sum > 0
        %><div class="progress">
            <div title="<%= "#{passing} / #{sum}" %>" class="progress-bar bg-success" role="progressbar" style="width:<%= (100.0 * passing / sum).round(2) %>%" aria-valuenow="<%= passing %>" aria-valuemin="0" aria-valuemax="<%= sum %>"></div>
            <div title="<%= "#{warning} / #{sum}" %>" class="progress-bar bg-warning" role="progressbar" style="width:<%= (100.0 * warning / sum).round(2) %>%" aria-valuenow="<%= warning %>" aria-valuemin="0" aria-valuemax="<%= sum %>"></div>
            <div title="<%= "#{critical} / #{sum}" %>" class="progress-bar bg-danger" role="progressbar" style="width:<%= (100.0 * critical / sum).round(2) %>%" aria-valuenow="<%= critical %>" aria-valuemin="0" aria-valuemax="<%= sum %>"></div>
          </div>
        <% end %>
        <div class="list-group">
        <% nodes_sorted.each do |snode|
          tags = snode['Service']['Tags'].sort
          addr = snode.service_address
          port_num = snode['Service']['Port'].to_i
          port = port_num && port_num > 0 ? ":#{port_num}" : ''
          url = if tags.include? 'https'
                  "https://#{addr}#{port}"
                elsif tags.include? 'http'
                  "http://#{addr}#{port}"
                elsif tags.include? 'ftp'
                  "ftp://#{addr}#{port}"
                else
                  nil
                end
        %><div class="list-group-item check"><a <%= url ? "href=\"#{url}\"" : nil %>><%=
          snode['Node']['Node'] %><%= port %></a>
            <span class="tags"><%
              snode['Service']['Tags'].sort.each do |t|
              %><span class="badge badge-pill"><%= t %></span><%
              end
            %></span>
            <span class="float-right statuses"><%
          snode['Checks'].each do |c| %> <span title="<%= c['Name']%>" class="badge badge-pill badge-<%= status_to_class(c['Status']) %>"><%= c['Status']
          %></span><% end if snode['Checks'] %></span></div>
        <% end %>
        </div>
      </div>
      <% end 
      %>
    </main>
  </div>
</div>
<%= render_file 'common/footer.html.erb' %>