Delivery Pipelines as a First Class Citizen @deliverAgile2019

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Delivery Pipelines as a
First Class Citizen
Cora Iberkleid
@ciberkleid | ciberkleid@pivotal.io
Advisory Platform Architect...

Why It Matters

Production, production, production
awesome
product in
your dev env
ok product in
user’s hands
ok > awesome ??

Is ok really ok?
Yes, if delivery is...
Fast
Safe
Secure
So you can iterate quickly & often,
because that’s how you get fr...

New Measures of Success
● Release frequently
● Release independently
● Roll back independently

Stand on the Shoulders of Giants
● Build on a layers of modern,
structured automation
● Employ modern coding & testing
pra...

The Software Defined Delivery Manifesto
● Delivery is not a detail
● Time to apply our core skills to our own work

Continuous Delivery Foundation (CDF)

CI vs CD

CI vs……………………………. CD
CI Pipeline
release branch
CI Pipeline
master branch
Artifact
Repo
CD Pipeline
master branch
test
sta...

An Example of CI vs CD Tooling
Stateless: Rather than sharing state, every task
runs in its own container, controlling its...

CI Best Practices
● Simple
● Consistent
● Early
● Follow cloud native / 12-factor principles
○ Boundaries to facilitate in...

CI Best Practices
● Simple
● Consistent
● Early
● Leverage modern frameworks
● Convention over configuration
● Establish b...

CI Best Practices
● Simple
● Consistent
● Early
● Shift as much testing left into CI as possible
● Use contract-based stub...

CD Best Practices
● Simple
● Consistent
● Easy
● Leverage the highest level of abstraction possible
for the workload runti...

CD Best Practices
● Simple
● Consistent
● Easy
● Leverage purpose-built, cloud-oriented CD tooling
○ Avoid using a CI tool...

CD Best Practices
● Simple
● Consistent
● Easy
● With good CI practices and the right choice of CD
tooling, sophisticated ...

Spinnaker Integrations
Cloud Providers
App Engine
Amazon Web Services
Azure
Cloud Foundry
DC/OS
Google Compute Engine
Kube...

Application-centric Control Plane

CI for APIs

Step 1: Agree on API Contract
Consumer Producer
API v1

Step 1: Codify the Contract
Consumer Producer
API v1
pull request
Contract.make {
description("""
should return a fortune ...

Tests Can* Be Auto-generated
* e.g. Spring Cloud Contract

Why is That Beneficial?
● Producer can easily ensure it complies with the contract
● Efficient
● Repeatable
● Reliable

But Wait… There’s More
● Producer can easily check for API back-compatibility
○ Use an older contract to generate tests – ...

A Stub Jar is also Auto-Generated. Just publish it.
Producer uses the contract in the stub to
re-generate tests and runs t...

It’s Also Good for the Consumer
Consumer can use the stub to mock out
the producer…
.... for N* number of older stubs
* wh...

Benefits to the Consumer
● The mock is more reliable
● The mock is available early
● Consumer can easily ensure it complie...

The Heart of the API Testing (local versions)
######## API CHECK: PRODUCER
./mvnw clean verify -Papicompatibility -Dproduc...

CI for DB Schemas

Database Schema Versioning & Migration
Application
Database
v1
v1
● Frameworks such as Flyway and
Liquibase handle version...

Database Schema Versioning & Migration
Application
Database
v1
v2
● Test new code against new db schema
● Check out older ...

No More Database Rollback Nightmares
● Ensure the app can roll back in production without having to roll back the
database...

The Heart of the DB Schema Testing
######## DB CHECK
cd ../app-blue;
./mvnw clean test -Dspring.flyway.locations=filesyste...

CD Deployment Strategies

Advanced Deployment Strategies
● Blue/green
● Automated canary analysis
● Rollbacks
Verifying back compatibility enables y...

Metrics-driven Canary Analysis for Prod Deployment
NetFlix Tech Blog: https://medium.com/netﬂix-techblog/automated-canary-...

Yet Another Layer of Abstraction

Code Your Pipeline - Emergent Options
● Spin CLI
● Spinnaker Managed Pipeline Templates
● Canal (in development)
○ Kotlin ...

In Summary…
● Keep your eye on the prize
○ Production is the place to be
○ Frequent releases
○ Independent release and rol...

Speaking of
Giants
A Word of Gratitude
For their guidance, help, and support
(in descending order of consecutive
consonant...

THANK YOU!
Demo guide:
https://github.com/ciberkleid/cna-demo-setup
Slides: https://www.slideshare.net/ciberkleid/delivery...

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