devops wtf is devops

Infrastructure in the Cloud IaaS vs. PaaS Chef very short WTF is … Devops

Hi! I am Peter, a developer. ... devops heroes ... devops heroes

I like writing code design patterns the Integrated Development Environment aka. IDE I like less... reading manual pages troubleshooting servers configuration files lifting heavy things managing services and packages software deployments ... devops heroes

” “ things developers say ... I don't do system related tasks, especially not in production. - Developer can someone else do it this time please? pretty please?

” “ more things developers say ... - The same Developer Give me full control, or else when things go wrong, I am powerless to fix it. Just changed motorcycle wheels. I’ll jump anyway, it will be okay ...

Infrastructure flickr.com/photos/mrfrosted/278847814/

Infrastructure flickr.com/photos/mrfrosted/278847814/ server operating system database cache / shared memory network

I finished writing the code! Server room Servers Racks Labor Electricity & AC Configuration Deployment $150,000,000 + 16 months When can our customers start paying? Oh, we probably need a couple more things ... Oh, oh, and I almost forgot. Ahh, I'm also gonna need you to go ahead and come in on Sunday, too... ... devops heroes

Houston we have a problem. TPS report not found. ... devops heroes

use the Cloud the what? who are you? I'm Joana, ... the fairy godmother, ... ahh, never mind me. Just use the Cloud Luke, err.. Peter. ... devops heroes

The Cloud flickr.com/photos/21644167@N04/3897234326/

flickr.com/photos/21644167@N04/3897234326/ The Cloud rapid provision api pay per use self maintained resilient & distributed diverse

Web Application Architecture ... Cloud cloud ... the cloud

Cloud Jargon ... as a service IaaS Infrastructure PaaS Platform SaaS Software ... the cloud

IaaS vs. PaaS complex painful do it yourself total freedom total freedom cheaper better performance simple comfortable someone else "did it" constraints conventions expensive so-so performance ... the cloud

What would you choose? IaaS PaaS lets see examples ... ... the cloud

Microsoft IaaS vs. PaaS Microsoft Windows Azure "Virtual Machines" Microsoft Windows Azure "Web Sites" everything works git push to deploy infrastructure pain custom deploys has ActiveDirectory! windowsazure.com ... the cloud

Google IaaS vs. PaaS Google "Compute Engine" Google "App Engine" custom APIs lots of limitations lots of abilities includes: Java, Go, PHP, Python and much much more... no longer beta! Google I/O release per-minute billing cloud.google.com ... the cloud

less control more comfort Amazon AWS IaaS vs. PaaS AWS EC2 AWS BeanStalk almost full control no comfort aws.amazon.com AWS OpsWorks AWS CloudFormation ... the cloud

git push deploy lots of magic easy scalability many partners expensive poor performance IaaS vs. PaaS Salesforce Heroku heroku.com I dont like "magic", give me more control! You say its slow and expensive? ... no no, it will not do. ... the cloud

I can't deploy to a "platform" We will use servers in the Cloud! Just tell me when customers start paying! ... devops heroes

what someone has to actually do to use Servers in the (AWS) Cloud - For each world region - Define architecture (app+db+cache+stuff) - Select instance types and OS images (AMI) - Proper security groups (firewalls) - Generate SSH keys - Install packages - Configure services - Deploy application - Have a nervous breakdown - Repeat from start for each server - Profit!

awsofa.info

That is a lot of work. So many things can go wrong ... ... devops heroes

How do I do the same thing a hundred times without making mistakes? Chef, or Puppet, or CFEngine, or ... so many options. ... devops heroes

Automation infoq.com/presentations/Infrastructure-as-Code #!/bin/sh NODES="webserver database" for n in $NODES do ssh $n complex-script.sh done

zeroturnaround.com/labs/rebel-labs-release-it-ops-devops-productivity-report-2013

No content

open source configures servers cookbooks & recipes ruby dsl ... chef

redis cookbook cookbooks/redis/recipes/default.rb package "redis-server" do action :upgrade end service "redis-server" do action :nothing supports status: true, restart: true end template "/etc/redis/redis.conf" do source "redis.conf.erb" owner "root" mode "0644" variables({ bind: node[:redis][:bind] }) notifies :restart, "service[redis-server]" end 1. cookbook/redis/attributes/default.rb 2. solo.json ... chef

cookbooks/redis/attributes/default.rb default[:redis][:bind] = "127.0.0.1" cookbooks/redis/templates/default/redis.conf.erb # If you want you can bind a single interface, if the bind option is not # specified all the interfaces will listen for incoming connections. bind <%= @bind %> ... template "/etc/redis/redis.conf" do ... variables({ bind: node[:redis][:bind] }) end redis cookbook ... chef

running chef-solo $ chef-solo -c solo.rb -j solo.json ... solo.rb cookbook_path "cookbooks" solo.json { "run_list": "recipe[redis]" } ... chef

$ sudo chef-solo -c solo.rb -j solo.json Starting Chef Client, version 11.4.0 Compiling Cookbooks... Converging 3 resources Recipe: redis::default * package[redis-server] action upgrade - upgrade package redis-server from uninstalled to 2:2.2.12-1build1 * service[redis-server] action nothing (up to date) * template[/etc/redis/redis.conf] action create (up to date) Chef Client finished, 1 resources updated First run installs redis, creates configuration file. ... chef

Second time, everything is already up to date. Idempotency! ƒ[ƒ(x)] ≡ ƒ(x) $ sudo chef-solo -c solo.rb -j solo.json Starting Chef Client, version 11.4.0 Compiling Cookbooks... Converging 3 resources Recipe: redis::default * package[redis-server] action upgrade (up to date) * service[redis-server] action nothing (up to date) * template[/etc/redis/redis.conf] action create (up to date) Chef Client finished, 0 resources updated ... chef

making a small change to JSON parameters passed to Chef run. running chef-solo solo.json { "redis": { "bind": "0.0.0.0" }, "run_list": "recipe[redis]" } ... chef

$ sudo chef-solo -c solo.rb -j solo.json Starting Chef Client, version 11.4.0 Compiling Cookbooks... Converging 3 resources Recipe: redis::default * package[redis-server] action upgrade (up to date) * service[redis-server] action nothing (up to date) * template[/etc/redis/redis.conf] action create - update template[/etc/redis/redis.conf] from 81b4f1 to 8a6cec --- /etc/redis/redis.conf 2011-07-27 17:26:50.000000000 +0000 +++ /tmp/chef-rendered-template20130406-2537-f8vlv6 2013-04-06 ... @@ -27,7 +27,7 @@ # If you want you can bind a single interface, if the bind option is not # specified all the interfaces will listen for incoming connections. # -bind 127.0.0.1 +bind 0.0.0.0 # Specify the path for the unix socket that will be used to listen for # incoming connections. There is no default, so Redis will not listen * service[redis-server] action restart - restart service service[redis-server] Chef Client finished, 2 resources updated ... chef

A single server is just not enough … how do I scale? I have some pretty graphs for you ... ... devops heroes

requests # of servers CPU aggregate techblog.netflix.com/2012/01/auto-scaling-in-amazon-cloud.html

WTF is ... Devops?

CAMS Culture Automation Measurement Sharing wtf is ... devops opscode.com/blog/2010/07/16/what-devops-means-to-me/ by John Willis @botchagalupe

○ Interactions over processes and tools. ○ Continuous delivery of value. ○ Welcome changing requirements. ○ Provide an environment for motivated individuals to succeed. Culture wtf is ... devops parts from agilemanifesto.org

“Between 12:00 AM and 11:59 PM on April 25, 2013, Quora released new versions of the site 46 times. This was a normal day for us.” - Quora engineering.quora.com/Continuous-Deployment-at-Quora “Deployment every 11.6s, 1,079 max in one hour. 10,000 mean number of hosts per deployment, with 30,000 maximum” - Amazon. com youtube.com/watch?v=PW1lhU8n5So “On the Google Consumer Surveys team, 8 minutes after you commit code it's live in production.” - Google developers.google.com/live/shows/772717729 “10+ deploys per day.” - John Allspaw, 2009 youtube.com/watch?v=LdOe18KhtT4 wtf is ... devops

● Minimize required manual work. ● Simplicity is essential. ● Working software over comprehensive documentation. ● Easiest thing to solve, often neglected. Automation wtf is ... devops

No content

○ Measure everything as often as possible. ○ Metrics of performance, process and people. ○ Unprecedented real-time visibility. ○ Enable continuous improvement. (Kaizen) Measurement wtf is ... devops

“... we also track really important stuff, like how much coffee is left in the kitchen” - Etsy codeascraft.com/2011/02/15/measure-anything-measure-everything end of 2009 end of 2012 Etsy.com : Deploys per day Measure Everything wtf is ... devops

Why do it? fast iterations ⇒ fast feedback loops Customer Business Release Feedback wtf is ... devops

○ Expand creativity and knowledge. ○ Feedback and learning for everyone. ○ Collaboration of diverse people on shared ideas. ○ Empowerment of teams and individuals. Sharing wtf is ... devops

No content

Deploy better systems at less cost in less time at lower risk. wtf is ... devops

enable the business wtf is ... devops

No content

take these slides offline bit.ly/hackademy-devops minifigures.lego.com Cheerleaders are spastic! They stretch like elastic!