nodejs tool

Jenkinsfile

@@ -17,11 +17,10 @@ switch (env.BRANCH_NAME) {
 }
 
 node {
-    agent any 
+    //env.NODEJS_HOME = "${tool 'node-8.12.0'}"
+    // on linux / mac
+    //env.PATH="${env.NODEJS_HOME}/bin:${env.PATH}"
 
-    tools {
-        nodejs 'node'
-    }
     stages {
         stage ('Print environment variables') {
             echo "Branch ${env.BRANCH_NAME}, build number ${env.BUILD_NUMBER}, environment ${env.NODE_ENV}"
@@ -30,12 +29,16 @@ node {
             checkout scm
         }
         stage ('Install Node dependencies') {
-            sh "npm install --only=prod"
-            sh "npm install --only=dev"
-            sh "gulp install"
+            nodejs('node-8.12.0') {
+                sh "npm install --only=prod"
+                sh "npm install --only=dev"
+                sh "gulp install"
+            }
         }
         stage ('Build project') {
-            sh "gulp build"
+            nodejs('node-8.12.0') {
+                sh "gulp build"
+            }
         }
         stage ('Generating new dockers') {
             sh "docker build -t vn-loopback:latest ./services/loopback/"