Flesh out pipeline some

.gitlab-ci.yml

 stages:
+  - install
+  - test
   - build
+  - deploy
 
 cache:
   paths:
@@ -7,17 +10,39 @@ cache:
     - .yarn
 
 install_dependencies:
-  stage: build
+  stage: install
   script:
+    - echo "Installing dependencies"
     - yarn install
   artifacts:
     paths:
       - node_modules/
 
 lint:
-  stage: build
+  stage: test
   script:
+    - echo "Running eslint"
     - yarn run lint
   artifacts:
     paths:
       - node_modules/
+
+build:
+  stage: build
+  script:
+    - echo "Building minified production app"
+    - yarn run build
+  artifacts:
+    paths:
+      - node_modules/
+
+deploy_prod:
+  stage: deploy
+  script:
+    - echo "Deploying to production server"
+  environment:
+    name: production
+    url: http://nn.adamprocter.co.uk
+  when: manual
+  only:
+  - master