horizon::cache_backend: django.core.cache.backends.memcached.MemcachedCache
horizon::django_session_engine: 'django.contrib.sessions.backends.cache'
horizon::vhost_extra_params:
horizon::cache_backend: django.core.cache.backends.memcached.MemcachedCache
horizon::django_session_engine: 'django.contrib.sessions.backends.cache'
horizon::vhost_extra_params: