Merge pull request #261 from CodeNow/SAN-3043-cache

Remove CLUSTER_WORKERS env, add ENABLE_CLUSTERING

Author: cflynn07

ansible/group_vars/alpha-navi.yml

@@ -8,9 +8,9 @@ node_version: "4.1.0"
 npm_version: "2.8.3"
 
 container_envs: >
-  -e CLUSTER_WORKERS=20
   -e DATADOG_HOST={{ datadog_host_address }}
   -e DATADOG_PORT={{ datadog_port }}
+  -e ENABLE_CLUSTERING=1
   -e ENABLE_LRU_CACHE=1
   -e ERROR_URL=http://{{ detention_host_address }}:{{ detention_port }}
   -e HTTP_PORT={{ hosted_ports[0] }}