Sample Pipeline configuration for Gitlab

.gitlab-ci.yml

image: node:6.10.3

stages:
 - init
 - tests
 - deploy
 - production
 
init:
 stage: init
 script: 
 - npm cache clean
 - rm -rf node-modules
 - npm install 


run_tests:
 stage: tests
 script: 
 - npm install mocha
 - npm test 

deploy_staging:
 stage: deploy
 script:
  - git remote add heroku https://heroku:[email protected]/test-staging.git
  - git push heroku master
  - echo "Code deployed to staging server"
 environment:
  name: staging
  url: https://test-ci-staging.herokuapp.com/
 only: 
   - master

deploy_production:
 stage: production
 script:
 - git remote add heroku https://heroku:[email protected]/test-production.git
 - git push heroku master
 - echo "Code deployed to production server"
 environment:
  name: production
  url: https://test-ci-production.herokuapp.com/
 when: manual
 only: 
  - master