devops and the cloud: all hail the (developer) king - daniel bryant, steve poole
TRANSCRIPT
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DevOps and the Cloud: All Hail the Developer King
onDeveloper Mode:
Daniel Bryant @danielbryantuk
Steve Poole@spoole167
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Outline• On the previous episode of JAX London
– The rise of DevOps and the promise of microservices
• Today– The reality of microservices, containers and DevOps– A modern architecture of an application
• Monolitically Complex -> modularly complex++• It’s real, it makes sense, it’s scary
– Tooling, continual learning and befriending ops
• Your choices…
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I (we) am the one who knocks…Steve Poole
IBM Developer
@spoole167
Daniel Bryant
Principal Consultant, OpenCredo
@danielbryantuk
Making Java Real Since Version 0.9
Open Source Advocate
DevOps Practitioner (whatever that means!)
Driving Change
“Biz-dev-QA-ops”
Leading change in organisations
All over Docker, Mesos, k8s, Go, Java
InfoQ, DZone, Voxxed contributor
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2014 -> Moving to DevOps: Easy, Hard or Just Plain Terrifying
• Extending agility across your IT org• From waterfall to agile, (and agile-fall in Ops)• Breaking down the silos• CI/CD is key (automate all the things)• Business need to react -> DevOps and Cloud• Recommended Ruby, Docker and Vagrant
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This Year
• Containers are mainstream– Orchestration platforms are
where the action is at– And the container bolt-ons are
evolving (storage, networking)
• #DOES14 showed enterprises are embracing DevOps– ‘Bimodal IT’ is really a thing
https://www.flickr.com/photos/tristantaussac/
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Part 1- Painful Lessons…
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All I hear is microservices…
“In computing, microservices is a software
architecture style in which complex applications are composed of small, independent processes communicating with each other using language-agnostic APIs. These
services are small, highly decoupled and focus on doing a small task,
facilitating a modular approach to system-building.”
https://en.wikipedia.org/wiki/Microservices
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Microservices
Turn applications into small, independent, highly decoupled, modular services
https://www.flickr.com/photos/daikrieg/
You want to make my life more complicated?
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Where’s the problem?
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browserApp A V1.0
Database
browser
You
Your Customers
server
Data Centre
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browserLoad balancer
App A V2.0
App AV2.0
App BV1.0
Database
browserDatabase
Ops
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browserLoad balancer
App A V2.0
App AV2.0
App BV1.0
Database
browserDatabase
browser
App A V2.0
App AV2.0
App BV1.0
browser
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browser
Load balancer
App A V2.0
App AV2.0
App BV1.0
Database
Database
browser App A V2.0
App AV2.0
App BV1.0
browser
browser
browser
browser
browser
Load balancer
Database
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browser
Load balancer
App A V2.1
App AV2.1
App BV1.0
Database
Database
browser App A V2.1
App AV2.1
App BV1.0
browser
browser
browser
browser
browser
Load balancer
Database
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A simple upgrade or a major impact?
lost revenue or going out of business?
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What lessons have we learnt?
Sharing datastores sounds like it saves effort but introduces cohesion between applications
Big-bang versioning of applications means putting existing unchanged usecases at risk
Scaling is challenging when you try to duplicate whole systems
Infrastructure – it’s much more important than we realized
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Part 2 - Build Your Own Platform?
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Adrian Cockcroft’s Thoughts
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Alexis Richardson’s Thoughts
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http://wikibon.com/wp-content/uploads/container_implementations.png
Technology Choices
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The Anatomy of a Modern Platform?(Maybe in the Googlesphere…)
http://www.eightypercent.net/post/layers-in-the-stack.html
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What’s Wrong with PaaS?
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Part 3 – Safety first
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Tooling – what’s left to do?
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Dynamic DevelopmentCapacity
Predefined static VM’s LPARs etc
OpenStack Cloud(s)
Docker Cloud
Infrastructure as CodeChef, Puppet, UCD …
OS
Infra On Prem Data Centres
Cloud ProvidersSoftLayer / Amazon etc
Config Containerized Applications
Continuous AvailabilityMesos etc
Deploy
Pipeline
Block Architecture of Hybrid Cloud Dev
SaaS
Primary Audience
GIT / Jenkins / Junit …. Selenium, Jmeter…
✔
✔
✔
✔
✔
Application DIY
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Dynamic DevelopmentCapacity
Predefined static VM’s LPARs etc
OpenStack Cloud(s)
Docker Cloud
Infrastructure as CodeChef, Puppet, UCD …
OS
Infra On Prem Data Centres Cloud ProvidersSoftLayer / Amazon etc
Config Containerized Applications
Continuous AvailabilityMesos etc
Deploy
Pipeline
Block Architecture of Hybrid Cloud Dev
SaaS
Primary Audience
GIT / Jenkins / Junit …. Selenium, Jmeter…
Other static hosts (‘BYOD’)
DIY
Application DIY
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Dynamic DevelopmentCapacity
Predefined static VM’s LPARs etc
OpenStack Cloud(s)
Docker Cloud
Infrastructure as CodeChef, Puppet, UCD …
OS
Infra On Prem Data Centres Cloud ProvidersSoftLayer / Amazon etc
Config Containerized Applications
Continuous AvailabilityMesos etc
Deploy
Pipeline
Block Architecture of Hybrid Cloud Dev
SaaS
Primary Audience
GIT / Jenkins / Junit …. Selenium, Jmeter…
Other static hosts (‘BYOD’)
DIY
Compliance / Security ContainersVM Images
Application DIY
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Dynamic DevelopmentCapacity
Predefined static VM’s LPARs etc
OpenStack Cloud(s)
Docker Cloud
Infrastructure as CodeChef, Puppet, UCD …
OS
Infra On Prem Data Centres Cloud ProvidersSoftLayer / Amazon etc
Config Containerized Applications
Continuous AvailabilityMesos etc
Deploy
Pipeline
Block Architecture of Hybrid Cloud Dev
SaaS
Primary Audience
GIT / Jenkins / Junit …. Selenium, Jmeter…
Other static hosts (‘BYOD’)
DIY
Compliance / Security ContainersVM Images
Application DIY
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Tooling Status
• Cloud OS technology is mainstream• As you rise up the stack the quality (and options
) vary• Your main challenge:– Create a robust (self-healing), secure, compliant
environment with a bag of parts that is still evolving
• Roll your own? – We still do
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Some suggestions
• Applications– Serenity BDD, Junit – Infrastructure– RoleSpec, ChefSpec, – ServerSpec
• ‘ilities’– JMeter, Gatling,
flood.io– ZAP, Google Cloud
Scanner
https://www.flickr.com/photos/mulliganstu/
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You do understand about security and compliance right?
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Where’s your data?
Legal restrictions on data locationVary by country even within the EU. Different rules depending on types of data
You already know this?
But now you’re putting the data in the cloud.
DO YOU understand where its goingCan you control / manage / audit the situation?
Now it’s your problem.
Having fun finding tools to help
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How’s your security knowledge?• Again – now it’s your problem
– Your code is running in the cloud– You created the services & the containers– Are they secure?– How do you test?– Are you sure?– Are those web services you’re buying secure?
• How much do you know about networking?– Not enough…
• Cyber crime is big business – you will get targeted. https://www.flickr.com/photos/61423903@N06/
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CybercrimeThe estimated cost of Cybercrime is $100 billion per year
500 million victims per year
600,000 facebook accounts compromised per day
28% of cyber attacks are around SQL injection
Only 5% of successful attacks are against Banks, Credit, Financials etc 35% of successful attacks are against businesses in general
50% of attacks come from hackers – just for the fun if it
60% caused losses to the business
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Talk to your Ops team
• They are your best friends.– They know about security and networking. • You need to know too
– They know (some) of the answers• It’s a whole new domain for you
– It’s not a new problem for them• Time to learn
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Part 4 - Sharing is Caring
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The Results of the Survey Are In…
• Puppet Labs 2015 State of DevOps– Available: puppetlabs.com/2015-devops-report
• Accelerates deployment– High performers 30x more deploys– Code committed to production 200x faster
• Prevents failures and streamlines recovery– High performers 60x fewer failures– Recovery 168x faster
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gotocon.com/dl/goto-london-2015/slides/NicoleForsgren_DevOpsNext.pdf
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Culture…
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05/02/2023 @danielbryantuk
DevOps: Share the Pain...
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05/02/2023 @danielbryantuk
“Dev-on-call”
An occasional spike to the head is a good thing...
...metaphorically speaking
• You build it, you run it– Shared responsibility– Communication
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05/02/2023 @danielbryantuk
Why Take Responsibility?
www.infoq.com/news/2015/06/too-big-to-fail
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Cross-functional Teams (FTW)
• Spotify (bit.ly/1C46ZKo)– Culture
• Amazon (bit.ly/1F3Dgkm)– Communication
• Gilt (gi.lt/1rgyWvO)– Strategic alignment
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05/02/2023 @danielbryantuk
When Things (Inevitably) Go Bad…
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Monitoring and People
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“It” Happens
• Failure happens all the time in the cloud– Distributed systems are complex– Container/cluster tech promotes transiency
• Get used to failing… literally– Run ‘Gamedays’– Disaster in Recovery Training (DiRT)– bit.ly/1L43U4H
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Part 5
The Future
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Is DevOps Dead?
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False Start, Dead, or Alive and Kicking?
• We see lots of ‘DevOps’ teams in the wild– They often look suspiciously similar to ops teams
that are using Puppet/Chef
• Advanced companies leaning towards – (Full stack) developers– Platform (tooling) teams– Site Reliability Engineers (SREs)
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“Programmable” Infrastructure?
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And the Tooling…Well...
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Server-less Infra? #IsOpsDead
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But wait! What about the “-ilities”?
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The Elephant in the Room
• Security…
• “What is Rugged All About?”– gotocon.com/dl/goto-london-2015/slides/JoshuaC
orman_WhatIsRuggedAllAbout.pdf
• “The Future of Containers”– www.youtube.com/watch?v=_jBTHyo0mEQ
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Part 6 – Conclusions
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Be Wary of Shiny SaaS• SaaS tools can be like crystal– Easy to get started– Initially you have fun– Encourages you to attend the
wrong (root cause) parties– Soon you’re selling Grandma
for the next (support) hit– You eventually lose friends
(and your teeth may fall out)htt
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perfe
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Key Messages
• Containers are here to stay– You need to learn how to design applications in a
new way (‘microservices’)• The stack is still not baked – but is getting there• “Safety first”– It’s a wild world out there – you must understand
about security, networking and the the rise of the cyber criminal
• Make your ops team your best friend
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Other Tech Tips • Golang dominates infrastructure and tooling
• Learn about clustering and scheduling– Mesos, Kubernetes, Nomad– Borg, Omega, Google’s DaaC
• Network skills essential (virtualization, overlays, OSI)
• Multi-cloud appears a solid bet– Neutrality / abstraction – Resource managers, OpenStack, Terraform, Ansible…
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Thanks – Questions?
Daniel Bryant@danielbryantuk
Steve Poole@spoole167