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The future of Continuous
Delivery: cloud-native services,
healthcare, and manufacturing
Matthew Skelton, Conflux
@matthewpskelton
confluxdigital.net
London Continuous Delivery meetup #londoncd
25 June 2019

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A Brief History of (CD) Time
Learning from ‘Cloud Native’
The Prod env in 2030 or before
Operability as a CD enabler

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Continuous Delivery and
operability practices are
central to our digital future
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Matthew Skelton
Conflux
@matthewpskelton
confluxdigital.net

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A Brief History of (CD) Time
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2014-2018
TODAY!

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Reliable Software
Releases Through Build,
Test, and Deployment
Automation
Jez Humble & Dave Farley, 2010
Continuous
Delivery

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Continuous Delivery promotes...
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An approach to building and evolving
software based on the scientific method
Hypothesis → Test/Observe → Adjust
The scientific
method 😍

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Continuous Delivery
is not a feature
factory!

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Re-aligned
architecture

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Fast feedback via
deployment pipelines

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Good technical
practices (TDD, …)

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Team ownership of
software & services

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Continuous Delivery overview
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Continuous Delivery with
Windows and .NET
Matthew Skelton & Chris O’Dell
O’Reilly, 2016
** Now a key text for MSc in
Software Engineering at UCL **
cdwithwindows.net

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A Brief History of (CD) Time
Learning from ‘Cloud Native’
The Prod env in 2030 or before
Operability as a CD enabler

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Learning from ‘Cloud Native’
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4 key metrics: ‘Accelerate’
lead time
deployment frequency
Mean Time To Restore
change fail percentage

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Cloud-native:
transparent in
operation

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Cloud-native:
designed for
automation

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Continuous
testing
performance
scanning
deployment
monitoring
right-sizing
integration

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Design for version control
Text files, not binaries
Fully-trackable change history
Transparency drives innovation
Powerful reasoning ability
Trigger automation on changes

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A Practical Approach to Large-Scale
Agile Development: How HP
Transformed LaserJet FutureSmart
Firmware
Gary Gruver, Mike Young, Pat Fulghum
2012

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ZeroDiff

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Digital: 1
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Rapidly-developed
services accessed via
personal compute devices

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Digital: 2
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Rich telemetry for existing
processes provided via
software and sensors

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Digital: 3
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Highly effective ways of
working discovered &
evolved though 1) and 2)

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Current
‘cloud-native’

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VB6 development
Current
‘cloud-native’

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Current
‘cloud-native’Healthcare
Agriculture
Manufacturing
Transport
Textiles ...

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A Brief History of (CD) Time
Learning from ‘Cloud Native’
The Prod env in 2030 or before
Operability as a CD enabler

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The Prod env in 2030
(or before)
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Basically Toyota has created "Factory as Code".
They call it "Flexibly Configurable Assembly Lines" -
tapeless guided vehicles, solar & wireless rail-less
transport equipment, wireless andon, assembly
equipment is floor based vs old overhead.
John Willis, co-author of
DevOps Handbook
(@botchagalupe)
https://twitter.com/botchagalupe/status/1136593546352431104

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Factory as Code
😲

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14,000 digital
insulin pumps

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2000 tractors

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1m sensors across
100 workplaces

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13k advertising screens
with facial recognition &
micro-targeting

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1500 crop sensors
via LoRaWAN

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100 robots picking
fruit in a vertical farm

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650 smart fabric
suits for firefighters

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56,000 home robot
cleaners

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A Brief History of (CD) Time
Learning from ‘Cloud Native’
The Prod env in 2030 or before
Operability as a CD enabler

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Operability as a CD enabler
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Lasting devices
(non-ephemeral)

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Micro-cloud (Balena)
+ dumb sensors

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Intermittent networks
and limited bandwidth

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Async all the things
LoRaWAN: 128bits/sec

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Local or ‘edge’
processing needed or
preferred

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Push cloud-native
technology to factory
DCs and edge
locations

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Failure modes can be
life-threatening

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Increased focus on
failure testing and
operability

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Operability
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Scale
Restore
Inspect
Failover
Monitor
Diagnose
Secure
Cleardown
Report
@matthewpskelton #londoncd

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Operability
making software work well
in Production
65@matthewpskelton #londoncd

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5 operability techniques
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BasketItemAdded = 60001
BasketItemRemoved = 60002
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1 - modern event-based logging
@matthewpskelton #londoncd

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runbooktemplate.info2 - Run Book dialogue sheets
@matthewpskelton #londoncd

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😊👍
RunBookTemplate.info

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Helper service
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3 - endpoint healthchecks
@matthewpskelton #londoncd

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transaction
trace
Correlation ID
612999958…
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4 - Correlation IDs and traces
@matthewpskelton #londoncd

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http://www.keepitusable.com/blog/?tag=alan-cooper
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Motivations
Goals
Frustrations
Improve the UX of people
running the systems
5 - lightweight User Personas for Ops
@matthewpskelton #londoncd

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modern event-based logging
Run Book dialogue sheets
endpoint healthchecks
correlation IDs
user personas
73@matthewpskelton #londoncd

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Operability
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Long-term customer experience
and service viability, not
short-term feature delivery
@matthewpskelton #londoncd

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Operability
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Sustainable revenue/spend
Sustainable on-call for teams
More predictable outcomes
@matthewpskelton #londoncd

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Team Guide to
Software Operability
Matthew Skelton, Alex Moore, and Rob Thatcher
operabilitybook.com
30% discount for LondonCD
http://leanpub.com/SoftwareOperabil
ity/c/LondonCD30
76@matthewpskelton #londoncd

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A Brief History of (CD) Time
Learning from ‘Cloud Native’
The Prod env in 2030 or before
Operability as a CD enabler

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Discover using Cloud Native
Adapt techniques for less
cloudy applications
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The market for people
with Continuous Delivery
and operability skills is
growing hugely
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Continuous Delivery and
operability practices are
central to our digital future
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Further reading & information
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RunBookTemplate.info
balena.io
zerodiff.org
OperabilityBook.com
http://leanpub.com/SoftwareOperability/c/LondonCD30 - 30% off
@matthewpskelton #londoncd

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Team Topologies
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Organizing business and
technology teams for fast flow
Matthew Skelton & Manuel Pais
Sept 2019, IT Revolution Press
teamtopologies.com

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thank you
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@matthewpskelton
@ConfluxHQ / confluxdigital.net
Feedback: confluxdigital.net/feedback