Add AWS Elastic Beanstalk deployment plugin to travis config

Run npm release script before deployment
Upgrade to node v8 in travis job

.travis.yml

@@ -1,13 +1,35 @@
 sudo: false
 language: node_js
 node_js:
-  - "6"
-before_script:
-  - mongo test_db --eval 'db.addUser("travis", "test");'
+  - "8"
+
+env:
+  - NODE_ENV=integration MONGO_URI=127.0.0.1:27017/test_db MONGO_USER=travis MONGO_PASS=test
+
 notifications:
   email:
     - build@mailvelope.com
+
 services:
   - mongodb
-env:
-  - NODE_ENV=integration MONGO_URI=127.0.0.1:27017/test_db MONGO_USER=travis MONGO_PASS=test
+
+before_script:
+  - mongo test_db --eval 'db.addUser("travis", "test");'
+
+before_deploy:
+  - npm run release
+
+deploy:
+  skip_cleanup: true
+  provider: elasticbeanstalk
+  access_key_id: $AWS_ACCESS_KEY
+  secret_access_key: $AWS_SECRET_ACCESS_KEY
+  region: eu-west-1
+  app: keyserver
+  env: keyserver-prod
+  zip_file: release.zip
+  bucket_name: elasticbeanstalk-eu-west-1-936909551620
+  bucket_path: keyserver
+  on:
+    repo: mailvelope/keyserver
+    branch: master