code: def generate(self, clusters, version=None):
          
          now = datetime.datetime.now()
  
          sections = [
              Section(
                  "Auto-generated by Lighthouse (%s)" % now.strftime("%c"),
                  self.global_stanza,
                  self.defaults_stanza
              )
          ]
  
          meta_stanzas = [
              MetaFrontendStanza(
                  name, self.meta_clusters[name]["port"],
                  self.meta_clusters[name].get("frontend", []), members,
                  self.bind_address
              )
              for name, members
              in six.iteritems(self.get_meta_clusters(clusters))
          ]
          frontend_stanzas = [
              FrontendStanza(cluster, self.bind_address)
              for cluster in clusters
              if "port" in cluster.haproxy
          ]
          backend_stanzas = [BackendStanza(cluster) for cluster in clusters]
  
          if version and version >= (1, 5, 0):
              peers_stanzas = [PeersStanza(cluster) for cluster in clusters]
          else:
              peers_stanzas = []
  
          sections.extend([
              Section("Frontend stanzas for ACL meta clusters", *meta_stanzas),
              Section("Per-cluster frontend definitions", *frontend_stanzas),
              Section("Per-cluster backend definitions", *backend_stanzas),
              Section("Per-cluster peer listings", *peers_stanzas),
              Section("Individual proxy definitions", *self.proxy_stanzas),
          ])
          if self.stats_stanza:
              sections.append(
                  Section("Listener for stats web interface", self.stats_stanza)
              )
  
          return "\n\n\n".join([str(section) for section in sections]) + "\n"
docs: Generates HAProxy config file content based on a given list of
          clusters.