Continuous Integration

Methodology

• Rebase frequently
• Test even more frequently
• Don't merge if tests don't pass

Rebase frequently

Avoid conflict hell

Test more frequently

Don't carry over broken code (implicit conflict hell)

Don't merge if tests broken

Spare conflict hell to everyone else

Unless you are Chuck Norris

Continuous Delivery

Methodology

• Build often
• Keep every merged commit releasable
• Automate environment deploys
  • Creation of environments on demand
• Big Red Deploy Button

That's even less reasonable than CI...

Build often

Avoid build-time surprises:

• Missing libraries
• Library upgrades
• Bugs in build process/scripts

Every merged commit releasable

• Encourages smaller changes.
• Easy to deploy ANY change.
  • That also means easy to deploy a revert (no need for rollback).
• Forces to keep all the build/release scripts or code up to date and working.

Automate environment deploys

• Easy to recreate envs from scratch
• Easy to create testing envs.
• Easy to create demo envs.
• Full provisioning process tested (and improved) all the time.

Big red deploy button

• Makes deployment independent of anybody.
• Value gets to production way faster, often, and safer.

Deployment becomes ubiquitous

Changes can be deployed any time

Changes can be deployed without special knowledge

DevOps

It's not

• A tool
• A set of tools
• A role (the devops guy)
• A team
• Operations/infrastructure
• Continuous integration/delivery/deployment

We all are DevOps

Not really...

Software development process

Might include:

• Agile development
• Continuous Integration
• Continuous Delivery
• Canary deployments
• A/B testing
• Dailies
• Infrastructure as code
• Cloud deployments
• ...

Chess vs Go

Copyright Alan Light - CC BY-SA 3.0

Copyright Donarreiskoffer - CC BY-SA 3.0

Three basic principles

Value flow

Remember the candy test!

Feedback

Continuous learning and experimentation

Quick tests

Quick tests

Locally run tests

$ docker-compose -f docker-compose.deps.yml run --rm pip
$ docker-compose -f docker-compose.deps.yml run --rm assets

$ docker-compose -f docker-compose.tests.yml run --rm unit

$ docker-compose -f docker-compose.tests.yml run --rm integration

$ docker-compose -f docker-compose.tests.yml run --rm workflows

$ docker-compose -f docker-compose.tests.yml run --rm acceptance

Quick tests

Travis

Normal tests

Normal tests

Migration tests (nightly)

Normal tests

Acceptance tests

Slow tests

Slow tests

Manual/end to end tests:

QA

Inspire infra overview

All envs

CI

CI

CI

QA

QA

...

Production

CI/CD stream

Current status

Jenkins setup

• Openshift hosted master
• Kubernetes connected slaves
• Docker image creation + repository
• Triggering on master merge (well, kinda)
• Run of acceptance tests
• User-triggered dummy deploy job

• Automate QA deployment
• Run of the migration tests
• Full pipeline

We have:

We lack:

Kubernetes setup

• Magnum generated cluster
• Easy add/remove nodes

• Monitoring (performance + status)

We have:

We lack:

QA setup

• Easy manual deploy steps (for non-breaking)

• Non-manual deployments
• Automated full reprovisioning
• Compatibility-breaking changes deployment

We have:

We lack: