Smoothing the Continuous Delivery path · Smoothing the Continuous Delivery path A tale of two...

© Equal Experts UK Ltd and lyndsayp ltd 2016 @EqualExperts @EqualExperts @lyndsp

simple so<ware solu>ons to big business problems.

Making Software. Better.

Smoothing the Continuous Delivery path A tale of two teams

© Equal Experts UK Ltd and lyndsayp ltd 2016 @EqualExperts @EqualExperts @lyndsp @EqualExperts @lyndsp

There’s no (CD) silver bullet

2

●  1 (php) monolith ●  50 deploys / day ●  1.5 billion page views /

month http://goo.gl/NZfr8a

●  >600 java microservices ●  >100 deploys / day ●  ~2 billion requests per day

https://goo.gl/qZXKWK


There’s no (CD) silver bullet

3

●  2 monoliths (C#, C++)

●  Weekly deployments

●  ~100M visits / day

●  >300 microservices (Scala)

●  Mul>ple deploys / day

●  ~11.5M page views / peak day

C++ C#

© Equal Experts UK Ltd and lyndsayp ltd 2016 @EqualExperts @EqualExperts @lyndsp @EqualExperts @lyndsp 4

Best practice #0 - Start with the best people you can hire

© Equal Experts UK Ltd and lyndsayp ltd 2016 @EqualExperts @EqualExperts @lyndsp @EqualExperts @lyndsp 5

Produc'on focused Standups

▪  Work board right to le<

▪  What was deployed

yesterday?

▪  What will be deployed today?

Best practice #1 - Think about Production, all the time


●  What’s the smallest thing we can release to Produc'on?

●  How do we evolve Produc'on behaviour

●  Is this code change safe to go to Produc'on today?

6

Best practice #1 - Think about Production, all the time


Best practice #2 - Testing is an activity, not a phase

7

Product Owner

Define

Dev

Build

QA

Test

Web Ops

Deploy


Best practice #2 - Testing is an activity, not a phase

8

Product Owner

Define

Dev

Build

QA

Explore

Web Ops

Deploy

Test


Monolith best practice #1 - 5 why’s

9

●  Create a >meline.

●  Gather those involved.

●  Walk through the >meline.

●  Choose an entry point event:

○  Event

○  Why?

○  Process improvement

●  Repeat x5 (ish)


Monolith best practice #2 - automated release notes

10



11



12

Source control system

Login Reporting

Payments API’s

Agile Project Management Tool

Features Stories

Tasks Defects

Story 123 Areas, authors, why ... Defect 789 Areas, authors, why ... Untracked work Areas, authors ...

Release note generator

Production Version

Candidate Version


Microservice best practice #1 - teams own their own microservices

13

“You build it, you run it”

- Werner Vogels

Amazon CTO hdps://goo.gl/DyfeOf


Microservice best practice #2 - backward compatible API’s

14

Produc>on

Staging

QA

Dev

Sharing through caring

© Equal Experts UK Ltd and lyndsayp ltd 2016 @EqualExperts @EqualExperts @lyndsp

simple so<ware solu>ons to big business problems.

Making Software. Better.

Smoothing the Continuous Delivery path A tale of two teams

Smoothing the Continuous Delivery path · Smoothing the Continuous Delivery path A tale of two...

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