Intro to DevOps – Lesson 3

Topics:

• Continuous integration/Delivery (Jenkins)
  • Automate from commits to repo to build to test to deploy
• Monitoring (Graphite)

At minimum there will be 6 environments

1. local (dev workstations)
2. dev (sandbox)
3. integration (test build and side effects)
4. test (UAT, Performance, QA may be many environments)
5. staging (live data? – replication of production)
6. production

If the hand over of each of these steps was manuals there are too many opportunities for delays and errors. Sooo:

• Continuous integration
  • Maintain a code repository (git)
  • Automate the build (Jenkins, TravisCI, CircleCI)
  • Test the build (Jenkins, TravisCI, CircleCI)
  • Commit changes often (manual)
  • Build each commit (Jenkins)
  • Fix bugs immediately (manual)
  • Test in a clone environment (test suites)

Some practical work setting up Jenkins…