Using Chef for Automated Infrastructure in the Cloud

Automating the Cloud with Chef Adam Jacob Co-Founder & CTO @ Opscode

• Who am I, who are you, and why are we here? • The Method • EC2 • Chef • Nanite • The Real World • Q &A http://www.ﬂickr.com/photos/niecieden/367343737/sizes/o/

• 13 years as a Systems Administrator • Lots of Mergers and Acquisitions • Consultant • Wrote much of Chef • CTO at Opscode http://www.ﬂickr.com/photos/anotherphotograph/2100904507/sizes/o/

http://www.ﬂickr.com/photos/timyates/2854357446/sizes/l/

• Developers? http://www.ﬂickr.com/photos/timyates/2854357446/sizes/l/

• Developers? • Systems Administrators? http://www.ﬂickr.com/photos/timyates/2854357446/sizes/l/

Why are we here? http://www.ﬂickr.com/photos/murplejane/1033445070/sizes/o/

Total Bootstrapping Time in Weeks 8 6 Corp Approvals Agile Approvals 4 Cloud 2 0 Best Time 0 Worst Time Why are we here? http://www.ﬂickr.com/photos/murplejane/1033445070/sizes/o/

Total Bootstrapping Time in Weeks of ret g. 8 sec utin the mp tue s is Co r vir . hi ud 6 T o he here ot m Cl Corp Approvals ery s fro Ev mApprovals Agile 4 ste Cloud 2 0 Best Time 0 Worst Time Why are we here? http://www.ﬂickr.com/photos/murplejane/1033445070/sizes/o/

For Developers...

For Developers... • Do it yourself.

For Developers... • Do it yourself. • The infrastructure is the application (and vice versa).

For Developers... • Do it yourself. • The infrastructure is the application (and vice versa). • You are not a Systems Administrator.

For Developers... • Do it yourself. • The infrastructure is the application (and vice versa). • You are not a Systems Administrator. • You need tools.

Sysadmins... http://covers.oreilly.com/images/9780596007836/lrg.jpg Lean into it appears courtesy of Cliff Moon, of Dynomite fame: http://twitter.com/moonpolysoft

Sysadmins... • Say “Yes”. http://covers.oreilly.com/images/9780596007836/lrg.jpg Lean into it appears courtesy of Cliff Moon, of Dynomite fame: http://twitter.com/moonpolysoft

Sysadmins... • Say “Yes”. • You never liked rack and stack that much anyway. http://covers.oreilly.com/images/9780596007836/lrg.jpg Lean into it appears courtesy of Cliff Moon, of Dynomite fame: http://twitter.com/moonpolysoft

Sysadmins... • Say “Yes”. • You never liked rack and stack that much anyway. • You have never been more critical. http://covers.oreilly.com/images/9780596007836/lrg.jpg Lean into it appears courtesy of Cliff Moon, of Dynomite fame: http://twitter.com/moonpolysoft

Sysadmins... • Say “Yes”. • You never liked rack and stack that much anyway. • You have never been more critical. • Lean into it. http://covers.oreilly.com/images/9780596007836/lrg.jpg Lean into it appears courtesy of Cliff Moon, of Dynomite fame: http://twitter.com/moonpolysoft

The Method http://www.ﬂickr.com/photos/wonderlane/2090966628/sizes/l/

The Method Bootstrapping http://www.ﬂickr.com/photos/wonderlane/2090966628/sizes/l/

The Method Bootstrapping Conﬁguration http://www.ﬂickr.com/photos/wonderlane/2090966628/sizes/l/

The Method Bootstrapping Conﬁguration Command & Control http://www.ﬂickr.com/photos/wonderlane/2090966628/sizes/l/

The Method Bootstrapping Conﬁguration Command & Control Nanite! http://www.ﬂickr.com/photos/wonderlane/2090966628/sizes/l/

Lightning Strikes! DOOM Webservers Database Servers Webservers

Lightning Strikes! DOOM X Webservers XX Database Servers Webservers

Lightning Strikes! DOOM X 1 1 2 1 Signals Moar! Monitoring System Webservers 5 Updates 2 1 Command & Control XX 3 1 Bootstrapping Provisions 1 3 1 Database Servers 4 1 4 1 Conﬁguration Webservers

EC2 Best Practices http://www.ﬂickr.com/photos/46183897@N00/3442880227/sizes/l/

AMIs http://www.ﬂickr.com/photos/wwworks/3271208324/sizes/l/

AMIs • Amazon Machine Images http://www.ﬂickr.com/photos/wwworks/3271208324/sizes/l/

AMIs • Amazon Machine Images • Have one AMI with JEOS for each instance size http://www.ﬂickr.com/photos/wwworks/3271208324/sizes/l/

AMIs • Amazon Machine Images • Have one AMI with JEOS for each instance size • Use pre-existing images to bootstrap http://www.ﬂickr.com/photos/wwworks/3271208324/sizes/l/

AMIs • Amazon Machine Images • Have one AMI with JEOS for each instance size • Use pre-existing images to bootstrap • Include the Conﬁguration and C&C Tools http://www.ﬂickr.com/photos/wwworks/3271208324/sizes/l/

AMIs http://www.ﬂickr.com/photos/wwworks/3271208324/sizes/l/

AMIs • Re-bundle for speciﬁc roles http://www.ﬂickr.com/photos/wwworks/3271208324/sizes/l/

AMIs • Re-bundle for speciﬁc roles • Use SSH Keys for access http://www.ﬂickr.com/photos/wwworks/3271208324/sizes/l/

AMIs • Re-bundle for speciﬁc roles • Use SSH Keys for access • Shut off fsck! http://www.ﬂickr.com/photos/wwworks/3271208324/sizes/l/

Instances http://www.ﬂickr.com/photos/wwworks/3271208324/sizes/l/

Instances • Actual virtual machines http://www.ﬂickr.com/photos/wwworks/3271208324/sizes/l/

Instances • Actual virtual machines • c1.medium is the best bang for your $$ http://www.ﬂickr.com/photos/wwworks/3271208324/sizes/l/

Instances • Actual virtual machines • c1.medium is the best bang for your $$ • Use User Data to inform Conﬁguration http://www.ﬂickr.com/photos/wwworks/3271208324/sizes/l/

Instances • Actual virtual machines • c1.medium is the best bang for your $$ • Use User Data to inform Conﬁguration • Support indexed User Data - launch more than one at a time. (launch-index) http://www.ﬂickr.com/photos/wwworks/3271208324/sizes/l/

Instances • Update the default security group to allow SSH http://www.ﬂickr.com/photos/wwworks/3271208324/sizes/l/

Instances • Update the default security group to allow SSH • Use SSH Keys for authentication http://www.ﬂickr.com/photos/wwworks/3271208324/sizes/l/

Instances • Update the default security group to allow SSH • Use SSH Keys for authentication • Ephemeral Storage is your buddy http://www.ﬂickr.com/photos/wwworks/3271208324/sizes/l/

Instances • Internal and External hostnames are not unique http://www.ﬂickr.com/photos/wwworks/3271208324/sizes/l/

Instances • Internal and External hostnames are not unique • Only trust the instance-id http://www.ﬂickr.com/photos/wwworks/3271208324/sizes/l/

EBS http://www.ﬂickr.com/photos/wwworks/3271208324/sizes/l/

EBS • Elastic Block Store http://www.ﬂickr.com/photos/wwworks/3271208324/sizes/l/

EBS • Elastic Block Store • Truly persistent storage http://www.ﬂickr.com/photos/wwworks/3271208324/sizes/l/

EBS • Elastic Block Store • Truly persistent storage • Trivial to snapshot http://www.ﬂickr.com/photos/wwworks/3271208324/sizes/l/

EBS • Elastic Block Store • Truly persistent storage • Trivial to snapshot • Snapshots can bootstrap more EBS devices http://www.ﬂickr.com/photos/wwworks/3271208324/sizes/l/

Elastic IP Addresses http://www.ﬂickr.com/photos/wwworks/3271208324/sizes/l/

Elastic IP Addresses • Static, publicly routable addresses http://www.ﬂickr.com/photos/wwworks/3271208324/sizes/l/

Elastic IP Addresses • Static, publicly routable addresses • Fast and easy to re-assign http://www.ﬂickr.com/photos/wwworks/3271208324/sizes/l/

http://www.brooklynstreetart.com/theBlog/wp-content/uploads/2008/12/swedish_chef_bork-sleeper-cell.jpg

At a High Level... http://www.ﬂickr.com/photos/asten/2159525309/sizes/l/

At a High Level... • A library for conﬁguration management http://www.ﬂickr.com/photos/asten/2159525309/sizes/l/

At a High Level... • A library for configuration management • A configuration management system http://www.flickr.com/photos/asten/2159525309/sizes/l/

At a High Level... • A library for configuration management • A configuration management system • A systems integration platform http://www.flickr.com/photos/asten/2159525309/sizes/l/

At a High Level... • A library for configuration management • A configuration management system • A systems integration platform • An API for your entire Infrastructure http://www.flickr.com/photos/asten/2159525309/sizes/l/

http://www.ﬂickr.com/photos/gi/518613153/sizes/o/

Principles • Idempotent http://www.ﬂickr.com/photos/gi/518613153/sizes/o/

Principles • Idempotent • Reasonability http://www.ﬂickr.com/photos/gi/518613153/sizes/o/

Principles • Idempotent • Reasonability • Sane defaults, easily changed http://www.ﬂickr.com/photos/gi/518613153/sizes/o/

Principles • Idempotent • Reasonability • Sane defaults, easily changed • Hackability http://www.ﬂickr.com/photos/gi/518613153/sizes/o/

Principles • Idempotent • Reasonability • Sane defaults, easily changed • Hackability • TMTOWTDI http://www.ﬂickr.com/photos/gi/518613153/sizes/o/

Infrastructure as Code Manage conﬁguration as idempotent Resources. Put them together in Recipes. Track it like source code. Conﬁgure your servers. You can learn more about Chef at http://wiki.opscode.com/display/chef/Home

Automating Sudo Permissions Write the recipe. http://xkcd.com/149/

Automating Sudo Permissions Write the recipe. • Install the package. http://xkcd.com/149/

Automating Sudo Permissions Write the recipe. • Install the package. • Write out the sudoers ﬁle. http://xkcd.com/149/

Automating Sudo Permissions Write the recipe. • Install the package. • Write out the sudoers ﬁle. • Use custom attributes for users and groups. http://xkcd.com/149/

Automating Sudo Permissions Write the sudoers template http://xkcd.com/149/

Automating Sudo Permissions Write the sudoers template • Add a warning banner. http://xkcd.com/149/

Automating Sudo Permissions Write the sudoers template • Add a warning banner. • Make sure root always has access. http://xkcd.com/149/

Automating Sudo Permissions Write the sudoers template • Add a warning banner. • Make sure root always has access. • Add the node-speciﬁc users. http://xkcd.com/149/

Automating Sudo Permissions Write the sudoers template • Add a warning banner. • Make sure root always has access. • Add the node-speciﬁc users. http://xkcd.com/149/ • Add the node-speciﬁc groups.

Automating Sudo Permissions Create a role that installs sudo, and sets defaults. http://xkcd.com/149/

Automating Sudo Permissions Create a role that installs sudo, and sets defaults. • Give it a name. http://xkcd.com/149/

Automating Sudo Permissions Create a role that installs sudo, and sets defaults. • Give it a name. • A short description. http://xkcd.com/149/

Automating Sudo Permissions Create a role that installs sudo, and sets defaults. • Give it a name. • A short description. • Add the sudo recipe. http://xkcd.com/149/

Automating Sudo Permissions Create a role that installs sudo, and sets defaults. • Give it a name. • A short description. • Add the sudo recipe. • Add default users. http://xkcd.com/149/

Automating Sudo Permissions Create a role that installs sudo, and sets defaults. • Give it a name. • A short description. • Add the sudo recipe. • Add default users. http://xkcd.com/149/ • Add default groups.

Automating Sudo Permissions Put it all together!

Automating Sudo Permissions Put it all together! • Assign your role to nodes.

Automating Sudo Permissions Put it all together! • Assign your role to nodes. • When Chef runs, the sudoers ﬁle will be populated.

Nanite http://www.ﬂickr.com/photos/etherhill/182345209/sizes/l/

Nanite • “Self Assembling Cluster of Ruby Daemons” http://www.ﬂickr.com/photos/etherhill/182345209/sizes/l/

Nanite • “Self Assembling Cluster of Ruby Daemons” • AMQP - RabbitMQ http://www.ﬂickr.com/photos/etherhill/182345209/sizes/l/

Nanite • “Self Assembling Cluster of Ruby Daemons” • AMQP - RabbitMQ • Actors register Services http://www.ﬂickr.com/photos/etherhill/182345209/sizes/l/

Nanite • “Self Assembling Cluster of Ruby Daemons” • AMQP - RabbitMQ • Actors register Services • Distributed Map/Reduce for your Infrastructure http://www.ﬂickr.com/photos/etherhill/182345209/sizes/l/

Nanite Architecture Nanite brought to you by Ezra Zygmuntowicz @ Engine Yard - these slides pinched from http://www.slideshare.net/ezmobius/erlangfactory http://www.ﬂickr.com/photos/etherhill/182345209/sizes/l/

A Nanite Actor... Nanite brought to you by Ezra Zygmuntowicz @ Engine Yard http://www.slideshare.net/ezmobius/erlangfactory http://www.ﬂickr.com/photos/etherhill/182345209/sizes/l/

A Nanite Actor... • Advertises Services Nanite brought to you by Ezra Zygmuntowicz @ Engine Yard http://www.slideshare.net/ezmobius/erlangfactory http://www.ﬂickr.com/photos/etherhill/182345209/sizes/l/

A Nanite Actor... • Advertises Services • Advertises Tags Nanite brought to you by Ezra Zygmuntowicz @ Engine Yard http://www.slideshare.net/ezmobius/erlangfactory http://www.ﬂickr.com/photos/etherhill/182345209/sizes/l/

A Nanite Actor... • Advertises Services • Advertises Tags • Requests can route to Services and Tags Nanite brought to you by Ezra Zygmuntowicz @ Engine Yard http://www.slideshare.net/ezmobius/erlangfactory http://www.ﬂickr.com/photos/etherhill/182345209/sizes/l/

Lightning Strikes, Revisited! 1 1 2 1 Signals Moar! Monitoring Command & Bootstrapping System Updates Control Provisions 2 1 3 1 5 1 3 1 4 1 4 1 Conﬁguration

Lightning Strikes, Monitoring /node/down Service Revisited! Signals Nanite 1 1 2 1 Signals Moar! Monitoring Command & Bootstrapping System Updates Control Provisions 2 1 3 1 5 1 3 1 4 1 4 1 Conﬁguration

Lightning Strikes, Nanite boots new EC2 Nanite removes Revisited! Instances, with Chef Role + Attribute Data nodes in Chef 1 1 2 1 Signals Moar! Monitoring Command & Bootstrapping System Updates Control Provisions 2 1 3 1 5 1 3 1 4 1 4 1 Conﬁguration

Lightning Strikes, Revisited! Provisions Instances, EBS, Elastic IPs 1 1 2 1 Signals Moar! Monitoring Command & Bootstrapping System Updates Control Provisions 2 1 3 1 5 1 3 1 4 1 4 1 Conﬁguration

Lightning Strikes, Revisited! 1 1 2 1 Signals Moar! Monitoring Command & Bootstrapping System Updates Control Provisions 2 1 3 1 5 1 3 1 4 1 4 1 Conﬁguration Chef conﬁgures nodes according to assigned Roles

Lightning Strikes, Revisited! 1 1 2 1 Signals Moar! Monitoring Command & Bootstrapping System Updates Control Provisions 2 Chef updates the 1 3 1 5 1 3 1 monitoring system 4 1 4 1 Conﬁguration

In the Real World http://www.ﬂickr.com/photos/kenlund/3376784956/sizes/l/

A Simple Architecture Load Balancing Web Servers Databases http://www.ﬂickr.com/photos/susanneanette/2710667213/sizes/o/

A Simple Architecture AWS LB HAProxy S->M Load Balancing Web Servers Databases http://www.ﬂickr.com/photos/susanneanette/2710667213/sizes/o/

AWS LB A Simple Architecture HAProxy S->M Load Balancing Your App Stack M Web Servers EBS? Databases http://www.ﬂickr.com/photos/susanneanette/2710667213/sizes/o/

AWS LB A Simple Architecture HAProxy S->M Load Balancing Your App Stack M Web Servers EBS? Master/ Slave M->L->XL Databases EBS http://www.ﬂickr.com/photos/susanneanette/2710667213/sizes/o/

Load Balancing http://www.ﬂickr.com/photos/jannem/497840412/

Load Balancing • Amazon offers Load Balancing http://www.ﬂickr.com/photos/jannem/497840412/

Load Balancing • Amazon offers Load Balancing • Alternative is HAProxy + Elastic IP http://www.ﬂickr.com/photos/jannem/497840412/

Load Balancing (De)Provision Load Balancers • Amazon offers Load Balancing • Alternative is HAProxy + Elastic IP http://www.ﬂickr.com/photos/jannem/497840412/

Load Balancing (De)Provision Load Balancers • Amazon offers Load Balancing Conﬁgure Pools, Associate Backends • Alternative is HAProxy + Elastic IP http://www.ﬂickr.com/photos/jannem/497840412/

Load Balancing (De)Provision Load Balancers • Amazon offers Load Balancing Configure Pools, Associate Backends • Alternative is HAProxy + Elastic IP Reconfigure based on Load, STONITH http://www.flickr.com/photos/jannem/497840412/

Web Frameworks In General.. http://www.ﬂickr.com/photos/ecstaticist/289169665/sizes/o/

Web Frameworks In General.. • Try and keep things ephemeral http://www.ﬂickr.com/photos/ecstaticist/289169665/sizes/o/

Web Frameworks In General.. • Try and keep things ephemeral • File uploads belong in S3 or Cloudfront http://www.ﬂickr.com/photos/ecstaticist/289169665/sizes/o/

Web Frameworks In General.. • Try and keep things ephemeral • File uploads belong in S3 or Cloudfront • Use a shared session storage - preferably cookie or memcached based. http://www.ﬂickr.com/photos/ecstaticist/289169665/sizes/o/

Web Frameworks In General.. • Try and keep things ephemeral • File uploads belong in S3 or Cloudfront • Use a shared session storage - preferably cookie or memcached based. • Chef Deploy http://www.ﬂickr.com/photos/ecstaticist/289169665/sizes/o/

Web Frameworks In General.. • Try and keep things ephemeral (De)Provision Systems • File uploads belong in S3 or Cloudfront • Use a shared session storage - preferably cookie or memcached based. • Chef Deploy http://www.ﬂickr.com/photos/ecstaticist/289169665/sizes/o/

Web Frameworks In General.. • Try and keep things ephemeral (De)Provision Systems • File uploads belong in S3 or Cloudfront Conﬁguration, Deployment, • Use a shared session Discovery storage - preferably cookie or memcached based. • Chef Deploy http://www.ﬂickr.com/photos/ecstaticist/289169665/sizes/o/

Web Frameworks In General.. • Try and keep things ephemeral (De)Provision Systems • File uploads belong in S3 or Cloudfront Conﬁguration, Deployment, • Use a shared session Discovery storage - preferably cookie or memcached based. Trigger Deployment, Maintenance, Migrations • Chef Deploy http://www.ﬂickr.com/photos/ecstaticist/289169665/sizes/o/

Ruby on Rails http://www.ﬂickr.com/photos/davestfu/2157396025/sizes/l/

Ruby on Rails • Install Gem Dependencies with Chef • Passenger, Mongrel, or Thin http://www.ﬂickr.com/photos/davestfu/2157396025/sizes/l/

Ruby on Rails Deploys Radiant CMS • Install Gem Dependencies with Chef • Passenger, Mongrel, or Thin http://www.ﬂickr.com/photos/davestfu/2157396025/sizes/l/

Ruby on Rails • Install Gem Dependencies with Chef • Passenger, Mongrel, or Thin Conﬁgures Apache http://www.ﬂickr.com/photos/davestfu/2157396025/sizes/l/

Catalyst

• Use Chef for CPAN Dependencies Catalyst

• Use Chef for CPAN Dependencies • Follow the Chef Deploy layout Catalyst

• Use Chef for CPAN Dependencies • Follow the Chef Deploy layout • Use Catalyst::Plugin::Session::Store::Memcached Catalyst

http://www.ﬂickr.com/photos/hoerner_brett/2901426375/

• Use Chef for Egg Dependencies http://www.ﬂickr.com/photos/hoerner_brett/2901426375/

• Use Chef for Egg Dependencies • Use Chef Deploy layout http://www.ﬂickr.com/photos/hoerner_brett/2901426375/

• Use Chef for Egg Dependencies • Use Chef Deploy layout • Memcached Cache Backend http://www.ﬂickr.com/photos/hoerner_brett/2901426375/

• Use Chef for Egg Dependencies • Use Chef Deploy layout • Memcached Cache Backend • Use the Cache Session Backend http://www.ﬂickr.com/photos/hoerner_brett/2901426375/

Databases In General.. http://www.ﬂickr.com/photos/ecstaticist/289169665/sizes/o/

Databases In General.. • Keep everything on EBS http://www.ﬂickr.com/photos/ecstaticist/289169665/sizes/o/

Databases In General.. • Keep everything on EBS • Snapshot frequently http://www.ﬂickr.com/photos/ecstaticist/289169665/sizes/o/

Databases In General.. • Keep everything on EBS • Snapshot frequently • Keep a rolling backlog of snapshots http://www.ﬂickr.com/photos/ecstaticist/289169665/sizes/o/

Databases In General.. • Keep everything on EBS • Snapshot frequently • Keep a rolling backlog of snapshots • Register databases with Chef in ways that are easily discoverable http://www.ﬂickr.com/photos/ecstaticist/289169665/sizes/o/

Databases In General.. (De)Provision Systems, Build and Assign EBS • Keep everything on EBS • Snapshot frequently • Keep a rolling backlog of snapshots • Register databases with Chef in ways that are easily discoverable http://www.ﬂickr.com/photos/ecstaticist/289169665/sizes/o/

Databases In General.. (De)Provision Systems, Build and Assign EBS • Keep everything on EBS Conﬁguration, Tuning, • Snapshot frequently User Credentials, • Keep a rolling backlog of Discovery snapshots • Register databases with Chef in ways that are easily discoverable http://www.ﬂickr.com/photos/ecstaticist/289169665/sizes/o/

Databases In General.. (De)Provision Systems, Build and Assign EBS • Keep everything on EBS Conﬁguration, Tuning, • Snapshot frequently User Credentials, • Keep a rolling backlog of Discovery snapshots Maintenance, Migrations, • Register databases with Analytics Chef in ways that are easily discoverable http://www.ﬂickr.com/photos/ecstaticist/289169665/sizes/o/

MySQL http://www.ﬂickr.com/photos/bike/2380021517/sizes/l/

MySQL • Always have a Slave http://www.ﬂickr.com/photos/bike/2380021517/sizes/l/

MySQL • Always have a Slave • EBS is neat, but a crash is a crash - and recovery is time consuming http://www.ﬂickr.com/photos/bike/2380021517/sizes/l/

MySQL • Always have a Slave • EBS is neat, but a crash is a crash - and recovery is time consuming • Building slaves is trivial http://www.ﬂickr.com/photos/bike/2380021517/sizes/l/

PostgreSQL http://www.ﬂickr.com/photos/jimgris/531515485/sizes/l/

PostgreSQL • Replication choices make things harder - PGPool-II appears to be most common on EC2 http://www.ﬂickr.com/photos/jimgris/531515485/sizes/l/

PostgreSQL • Replication choices make things harder - PGPool-II appears to be most common on EC2 • Hot standby with WAL Shipping http://www.ﬂickr.com/photos/jimgris/531515485/sizes/l/

PostgreSQL Are you great at this on EC2? • Replication choices make things harder - PGPool-II appears to be most common on EC2 • Hot standby with WAL Shipping http://www.ﬂickr.com/photos/jimgris/531515485/sizes/l/

Monitoring & Trending In General.. http://www.ﬂickr.com/photos/jiathwee/2870629436/sizes/l/

Monitoring & Trending In General.. • Must be integrated with Command & Control http://www.ﬂickr.com/photos/jiathwee/2870629436/sizes/l/

Monitoring & Trending In General.. • Must be integrated with Command & Control • Use search features in Chef to dynamically conﬁgure http://www.ﬂickr.com/photos/jiathwee/2870629436/sizes/l/

Monitoring & Trending In General.. • Must be integrated with Command & Control • Use search features in Chef to dynamically conﬁgure • Make sure you monitor internally and externally http://www.ﬂickr.com/photos/jiathwee/2870629436/sizes/l/

Nagios http://www.ﬂickr.com/photos/bike/2380021517/sizes/l/

Nagios • Do all that crazy conﬁg you have been avoiding http://www.ﬂickr.com/photos/bike/2380021517/sizes/l/

Nagios • Do all that crazy conﬁg you have been avoiding • Remarkably easy to automate http://www.ﬂickr.com/photos/bike/2380021517/sizes/l/

A word about Load...

Typical Peak Load 1. Bring on capacity as trafﬁc ramps up 2. Take down capacity as it ramps down 3. 10-15 Minutes on either side, fully unattended Graphs in this portion of the presentation taken from Theo Schlossnagle http://omniti.com/seeds/dissecting-todays-internet-trafﬁc-spikes

Atypical Load No way However, around you are Capacity still better Planning off! 1. Hope you know it is coming. 2. Increase capacity in advance. 3. Take down capacity as it ramps down. Graphs in this portion of the presentation taken from Theo Schlossnagle http://omniti.com/seeds/dissecting-todays-internet-trafﬁc-spikes

Round Up! http://www.ﬂickr.com/photos/benimoto/860423498/sizes/l/

Round Up! Bring new resources online http://www.ﬂickr.com/photos/benimoto/860423498/sizes/l/

Round Up! Bring new resources online Conﬁgure and manage them http://www.ﬂickr.com/photos/benimoto/860423498/sizes/l/

Round Up! Bring new resources online Conﬁgure and manage them Make the whole thing sing and dance http://www.ﬂickr.com/photos/benimoto/860423498/sizes/l/

http://www.ﬂickr.com/photos/jackol/1766679527/sizes/l/ Q &A Please rate this talk! There is lots more to learn Email: adam@opscode.com about Chef at Twitter: adamhjk http://wiki.opscode.com IRC: irc.freenode.net #chef

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Using Chef for Automated Infrastructure in the Cloud

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Using Chef for Automated Infrastructure in the Cloud — Presentation Transcript