attempting to normalize ES config w/ that of the submission API

Author: cwdcwd

config/default.js

@@ -1,6 +1,9 @@
 /**
  * The configuration file.
  */
+const AWS = require('aws-sdk')
+const httpAWSes = require('http-aws-es')
+
 module.exports = {
   LOG_LEVEL: process.env.LOG_LEVEL || 'debug',
 
@@ -17,7 +20,13 @@ module.exports = {
   // see https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/configuration.html
   // for full config details, for SSL connection, see the ssl field details in above page
   ELASTICSEARCH_CONFIG: {
-    host: process.env.ELASTICSEARCH_HOST || 'localhost:9200'
+    apiVersion: process.env.ES_API_VERSION || '6.3',
+    host: process.env.ELASTICSEARCH_HOST || 'localhost:9200',
+    connectionClass: httpAWSes,
+    amazonES: {
+      region: process.env.AWS_REGION || 'us-east-1',
+      credentials: new AWS.EnvironmentCredentials('AWS')
+    }
   },
 
   ELASTICSEARCH_INDEX: process.env.ELASTICSEARCH_INDEX || 'submission-index',

package-lock.json

@@ -20,11 +20,13 @@
     "uuid": "^3.3.2"
   },
   "dependencies": {
+    "aws-sdk": "^2.286.2",
     "bluebird": "^3.5.1",
     "co": "^4.6.0",
     "config": "^1.21.0",
     "elasticsearch": "^15.1.1",
     "get-parameter-names": "^0.3.0",
+    "http-aws-es": "^6.0.0",
     "joi": "^9.0.4",
     "lodash": "^4.17.10",
     "no-kafka": "^3.2.4",