Delivery Patterns for Rapid and Reliable Releases @ JAX DevOps London (May 2019)

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Today, we pay close attention to scaling our systems by testing for chaos and reducing MTTR in production. However, our delivery pipelines don’t get nearly as much love. This talk presents tried and tested patterns for increasing an accelerated delivery of changes in a safe manner. We’ll also try to solve the mystery of sustainable Continuous Delivery. Everyone wants to go faster but also safer. As a result, we’re cramming more and more activities in the pipeline, from security controls and database changes to compliance approvals and even networking. How can we do this AND still move fast AND avoid burning out teams with all this cognitive load? Key takeaways: - learn patterns to ensure the reliability of your pipelines and make application changes safer - learn smart patterns to accelerate delivery, such as continuous pruning and short path to prod - understand how to sustain your CI/CD adoption growth with key practices like immutable delivery system

Tecnologia

Delivery Patterns
for Rapid and Reliable
Software Releases 1
Manuel Pais

About me
Manuel Pais
MS Software Eng
@manupaisable
me@manuelpais.net
http://manuelpais.net
DevOps Consultant & Trainer
Co-author of “Team Topologies”
Focused on teams and flow
2@manupaisable | manuelpais.net

@manupaisable | manuelpais.net 3
Today
1. Intro to boring releases
2. Patterns for safer releases
3. Patterns for faster releases
4. Patterns for sustainable delivery

@manupaisable | manuelpais.net 4
Today
1. Intro to boring releases
2. Patterns for safer releases
3. Patterns for faster releases
4. Patterns for sustainable delivery

8
Outcomes
@manupaisable | manuelpais.net

@manupaisable | manuelpais.net 9
Today
1. Intro to boring releases
2. Patterns for safer releases
3. Patterns for faster releases
4. Patterns for sustainable delivery

“ability to get changes of all types,
into production, or into the hands of
users, safely and quickly in a
sustainable way”
–Dave Farley & Jez Humble
continuousdelivery.com
@manupaisable | manuelpais.net 10

Patterns for safer releases
12@manupaisable | manuelpais.net

Patterns for safer releases
1. Map value stream in the pipeline
14@manupaisable | manuelpais.net

@manupaisable | manuelpais.net 17
https://www.youtube.com/watch?v=MAFpuwB7-to

Patterns for safer releases
19@manupaisable | manuelpais.net

Patterns for safer releases
1. Map your value stream to the pipeline
2. Measure key metrics
21@manupaisable | manuelpais.net

Speed lead time
Quality failure rate
Operability MTTR
22@manupaisable | manuelpais.net

Flow efficiency =
“generally flow efficiencies are
around the 15% mark”
http://leankanban.com/flow-efficiency-a-great-metric-you-probably-arent-using
@manupaisable | manuelpais.net 23

issue is not how long it takes to do
something, it's how long we're
waiting for it to get done
@manupaisable | manuelpais.net 24

Patterns for safer releases
25@manupaisable | manuelpais.net

Patterns for safer releases
1. Map your value stream to the pipeline
2. Measure key metrics on speed,
quality & operability
3. Put in the groundwork !!!
27@manupaisable | manuelpais.net

Automated build in clean environment
Ephemeral prod-like test environment
Health checks and fast smoke tests
Automated acceptance tests (BDD)
Everything as code (one truth)
Single path to production
28@manupaisable | manuelpais.net

Patterns for safer releases
1. Map value stream in the pipeline
2. Measure key metrics
3. Put in the groundwork !!!
30@manupaisable | manuelpais.net

@manupaisable | manuelpais.net 31
Today
1. Intro to boring releases
2. Patterns for safer releases
3. Patterns for faster releases
4. Patterns for sustainable delivery

@manupaisable | manuelpais.net 33
Build Test Deploy

@manupaisable | manuelpais.net 34
FixMonitorRun
CI
Peer
review
Infra Security Comply
Database Accept UX Deploy

@manupaisable | manuelpais.net 35
can’t auto-
scale people
How to cope with
ever increasing
cognitive load on
teams to build and
run applications?

Patterns for faster releases
1. Design intelligent pipelines
2. Evolve teams and interactions
3. Set up a self-service platform
36@manupaisable | manuelpais.net

Patterns for faster releases
1. Identify & remove bottlenecks
2. Shorten path to production
3. Continuous pruning
38@manupaisable | manuelpais.net

Waiting for pipeline
@manupaisable | manuelpais.net 39

Waiting for pipeline
@manupaisable | manuelpais.net 40

Waiting for dependencies
@manupaisable | manuelpais.net 41

Waiting for dependencies
@manupaisable | manuelpais.net 42

Patterns for faster releases
1. Design intelligent pipelines
2. Evolve teams and interactions
3. Set up a self-service platform
43@manupaisable | manuelpais.net

Patterns for faster releases
1. Identify & remove bottlenecks
2. Shorten path to production
3. Continuous pruning
44@manupaisable | manuelpais.net

Risk-based activities (short & wide pipeline)
@manupaisable | manuelpais.net 45

Patterns for faster releases
pipelines
1. Set up a self-service platform
46@manupaisable | manuelpais.net

Patterns for faster releases
1. Identify & remove bottlenecks
2. Shorten path to production
3. Continuous pruning & fast feedback
48@manupaisable | manuelpais.net

49
“There are just two moments when
an automated test provides useful
information: the first time it passes
and when it subsequently fails.”
@manupaisable | manuelpais.net
Continuous pruning

Patterns for faster releases
1. Identify & remove bottlenecks
2. Shorten path to production
3. Continuous pruning & fast feedback
55@manupaisable | manuelpais.net

@manupaisable | manuelpais.net 56
Today
1. Intro to boring releases
2. Patterns for safer releases
3. Patterns for faster releases
4. Patterns for sustainable delivery

•CI tool
•CD tool (orchestration)
•Plugins / 3rd party tools
•Pipeline definitions
•Source repos
•Artifact repos
•CI + CD infrastructure
@manupaisable | manuelpais.net 60
Delivery (CI/CD) system

Delivery (CI/CD) system
CI/CD Toolchain
Pipelines
Infra
App 1
App 2
@manupaisable | manuelpais.net 61
Artifacts

System Operability
Available (no downtime)
Scalable (no pipelines waiting to run)
Monitored (alerts on resources and errors)
Recoverable (focus on diagnosis & MTTR)
@manupaisable | manuelpais.net 62

Patterns for sustainability
1. Treat your pipeline as a product
2. Treat your pipeline as a product
3. Treat your pipeline as a product
63@manupaisable | manuelpais.net

Immutable infrastructure
Blue-green deployments
Monitoring & alerting
Aggregated logging
Pipelines-as-code
Auto-scaling
64@manupaisable | manuelpais.net

About me
Manuel Pais
MS Software Eng
@manupaisable
me@manuelpais.net
http://manuelpais.net
DevOps Consultant
Co-author of “Team Topologies”
Focused on teams and flow
65@manupaisable | manuelpais.net

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