Change to Node 6

services/docstore/.nvmrc

@@ -1 +1 @@
-8.11.1
+6.14.1

services/docstore/Jenkinsfile

@@ -11,7 +11,7 @@ pipeline {
     stage('Install') {
       agent {
         docker {
-          image 'node:8.11.1'
+          image 'node:6.14.1'
           args "-v /var/lib/jenkins/.npm:/tmp/.npm -e HOME=/tmp"
           reuseNode true
         }
@@ -28,7 +28,7 @@ pipeline {
     stage('Compile and Test') {
       agent {
         docker {
-          image 'node:8.11.1'
+          image 'node:6.14.1'
           reuseNode true
         }
       }

services/docstore/package.json

@@ -39,6 +39,6 @@
     "sinon": "~3.2.1"
   },
   "engines": {
-    "node": "~8.11.1"
+    "node": "~6.14.1"
   }
 }