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THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Aegir Hosting System One Drupal to Rule Them All COLLEGE OF ENGINEERING.

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Presentation on theme: "THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Aegir Hosting System One Drupal to Rule Them All COLLEGE OF ENGINEERING."— Presentation transcript:

1 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Aegir Hosting System One Drupal to Rule Them All COLLEGE OF ENGINEERING

2 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Agenda: Aegir Hosting System Introduction –Challenges maintaining sites –How Aegir can help Using Aegir –Core components –Servers, sites, and platforms –Live demo Advanced Topics –Details –Gotchas –Awesomeness –References Introduction –Challenges maintaining sites –How Aegir can help Using Aegir –Core components –Servers, sites, and platforms –Live demo Advanced Topics –Details –Gotchas –Awesomeness –References

3 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Intro: Aegir Hosting System Ohio State University –3-4 known Aegir instances –300+ sites in Aegir and rapidly growing. My Experience –Almost 2 years starting with 0.4 –Written some internal extensions. –100+ sites Why Aegir? –Encourages some best practices. –Order of magnitude efficiency savings with high volumes of sites. –Works for few or many sites (once you understand it). Ohio State University –3-4 known Aegir instances –300+ sites in Aegir and rapidly growing. My Experience –Almost 2 years starting with 0.4 –Written some internal extensions. –100+ sites Why Aegir? –Encourages some best practices. –Order of magnitude efficiency savings with high volumes of sites. –Works for few or many sites (once you understand it).

4 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Intro | Challenges: Create a Site from Scratch 1.Create a database 2.Create a database user 3.Copy Drupal files out to a web server 4.Set appropriate file permissions 5.Configure Apache 6.Run Drupal installer

5 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Intro | Challenges: Upgrade a Site 1.Take site offline (maintenance mode) 2.Make a backup 3.Update files 4.Run update.php 5.Apply any manual configuration changes. 6.Take site out of maintenance mode.

6 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Intro | Challenges: Other Concerns 1.Testing changes 2.Staging environments 3.Regular backups 4.Software audits 5.Repeatable deployments 6.General administration

7 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Intro | Challenges: Options Maintain by hand –You manage everything –Easy to start out –Doesn’t scale well Become a Drush ninja –You manage everything Now with scripts! –Scales as well as you Use Aegir –Setup requires knowledge –Novice can manage sites –Expert can use Drush-fu –Encourages best practices Maintain by hand –You manage everything –Easy to start out –Doesn’t scale well Become a Drush ninja –You manage everything Now with scripts! –Scales as well as you Use Aegir –Setup requires knowledge –Novice can manage sites –Expert can use Drush-fu –Encourages best practices

8 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Intro | Challenges: #Drupal Sites vs Cost to Sanity

9 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Intro | Aegir: One Drupal to Rule Them All Aegir can manage Apache, Nginx MySQL Drupal sites & platforms Upgrades Backups But wait, there’s more! Free Drush CLI! Learn best practices! So easy, anyone can use! Now midi-chlorian free! Aegir can manage Apache, Nginx MySQL Drupal sites & platforms Upgrades Backups But wait, there’s more! Free Drush CLI! Learn best practices! So easy, anyone can use! Now midi-chlorian free!

10 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Intro | Aegir: Hosting - a website to manage websites

11 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Intro | Aegir: Provision - Drush extension backend Sh-3.2$ drush | grep provision provision-backup Generate a back up for the site. provision-backup_del Delete a backup file. provision-clone Clone a site between platforms. provision-delete Delete a site. provision-deploy Deploy an existing backup to a new url. provision-disable Disable a site. provision-enable Enable a disabled site. provision-import Import site to provision provision-install Provision a new site using the provided data. provision-lock Lock a platform from having any other sites. provision-login_rese Generate a one-time login reset URL. provision-migrate Migrate a site between platforms. provision-restore Restore the site to a previous backup. provision-save Save Drush alias provision-unlock Unlock a platform provision-verify Verify the framework is correctly installed. provision-zone Manipulate a zonefile

12 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Using Aegir | Servers: Web or Database Web Servers Apache Nginx Database MySQL Servers have: IP Address(es) Port(s) Credentials Etc

13 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Using Aegir | Servers: Web or Database

14 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Using Aegir | Platforms: Root of a Multi-Site Install OpenAtrium-rc1 puppies.com kittens.org OpenPublic-beta1 billthecat4pres.com toonces4gov.com A platform can have multiple sites but can reside only on one web server.

15 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Using Aegir | Platforms: Create a Platform

16 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Using Aegir | Sites: Your Websites server1 puppies.com kittens.org server2 billthecat4pres.com toonces4gov.com Sites are tied to a DB server and platform. The platform determines which web server the site runs on.

17 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Using Aegir | Sites: Create a Site

18 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Using Aegir | Migrations: Upgrade One or Many Sites 1.Create a new platform with the upgraded code. 2.Migrate sites (or entire platforms) to the new platform. Open Atrium Beta 2 Site 1 Site 2 Site 3 Open Atrium Beta 2

19 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Using Aegir | Upgrades: Upgrade One or Many Sites

20 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Using Aegir | Backups: Manual and Automatic Upgrades and other actions automatically create backups. You can manually create/restore backups from web ui. Backups are stored locally (/var/aegir/backup) You can restore backups to another Aegir instance (with a little work)

21 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Using Aegir | Backups: How to Backup / Restore a Site

22 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Using Aegir | Cloning: Make a copy of your site Works just like an upgrade/migration. Great way to test a migration. Can be a way to get a test copy of a site.

23 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Advanced | Migrate+Rename/Cloning: Under the Hood When we migrated/cloned from puppies.com to the-puppy.com… How did this… Get changed to this… Aegir fixes some content programmatically. It also adds this alias /files/vienna-sausages.png

24 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Advanced | Hooking In: vhost configuration Aegir regenerates your vhost configuration (all the time). /var/aegir/.drush/.drush.inc _provision_apache_vhost_config($uri, $data) { if ($uri == “abc.com") { return array("php_value upload_max_filesize 100M", "php_value post_max_size 200M"); } } ?> See also pre.d and post.d vhost configuration

25 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Advanced | Hooking In: settings.php Aegir regenerates your settings.php file (all the time). This file is included at the end of your Aegir controlled settings.php /var/aegir/platforms/sites/ /local.settings.php For example, you might want to configure a maintenance theme.

26 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Advanced | Installation: Easy or Hard Vanilla Aegir If you use Ubuntu/Debian, you can use apt-get. If you use RHEL/Centos/etc, you can use the manual instructions. It’s pretty well documented, but budget a couple hours. Omega8cc Alternatives to Vanilla (on d.org/projects) Barracuda Barracuda is a bash script to install and/or upgrade, tuned for high performance, Aegir Master Instance with all related system services. Octopus Octopus is a bash script to install and/or upgrade, tuned for high performance, Aegir Satellite Instances, compatible with Barracuda

27 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Advanced | Gotchas: Multi-Server Architecture Hub Spoke Model Master Server Has a copy of everything (sort of). Migrations go through it. -Web Server 1 -Platform A -Site 1 -Web Server 2 -Platform B Hub Spoke Model Master Server Has a copy of everything (sort of). Migrations go through it. -Web Server 1 -Platform A -Site 1 -Web Server 2 -Platform B

28 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Advanced | Gotchas: Multi-Server Data Loss There is a long standing data loss bug in which the files directory on the hub sometimes overwrites data on the spoke. There are various patches in the issue queue none of which quite work. We solved it by hacking our Aegir instance to rsync files from the spoke to hub prior to many other actions. Bug Report There is a long standing data loss bug in which the files directory on the hub sometimes overwrites data on the spoke. There are various patches in the issue queue none of which quite work. We solved it by hacking our Aegir instance to rsync files from the spoke to hub prior to many other actions. Bug Report Why! Why was I programmed to feel pain?

29 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Advanced | Gotchas: Site Specific Modules/Themes Site-specific modules/themes not super well supported in multi-server. The original recommendation was to make a site specific install profile and put them there. At some point they made the hub the authority but this doesn’t work with things like apps so it’s still debated. Bug Report Site-specific modules/themes not super well supported in multi-server. The original recommendation was to make a site specific install profile and put them there. At some point they made the hub the authority but this doesn’t work with things like apps so it’s still debated. Bug Report

30 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Advanced | Gotchas: Multi-Server Cron Runs Where? Cron can run two ways: Wget (on spoke) Drush (on hub) If your cron works with files (creating, updating, reading), you can’t use drush via Aegir in a Multi-Site environment. Feature Request Aegir 2.0 Cron can run two ways: Wget (on spoke) Drush (on hub) If your cron works with files (creating, updating, reading), you can’t use drush via Aegir in a Multi-Site environment. Feature Request Aegir 2.0

31 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Advanced | Gotchas: Security Traditional mod_php issues apply. In addition… Aegir user has access to all sites/dbs/web-roots/servers. Site X’s code can run as Aegir user hook_init drush.inc etc Bug Report Provision ACL helps Traditional mod_php issues apply. In addition… Aegir user has access to all sites/dbs/web-roots/servers. Site X’s code can run as Aegir user hook_init drush.inc etc Bug Report Provision ACL helps

32 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Advanced | Awesomeness: SaaS Business Models Couples buy a wedding website. Order page is an Aegir signup form. Purchase immediately provisions a new site. Blog post on it. Couples buy a wedding website. Order page is an Aegir signup form. Purchase immediately provisions a new site. Blog post on it. Clients purchase subscriptions to Open Atrium instances which are deployed through Aegir. DrupalCon London Talk Writeup: DrupalCon London Talk Writeup:

33 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Advanced | Awesomeness: Continuous Integration Mig5 (an Aegir developer) has a wonderful tutorial on continuous integration with Jenkins and Aegir. Also, Mike Butsko (OSU ASC tech) presenting on Jenkins later today and he uses Aegir too. Mig5 (an Aegir developer) has a wonderful tutorial on continuous integration with Jenkins and Aegir. Also, Mike Butsko (OSU ASC tech) presenting on Jenkins later today and he uses Aegir too.

34 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Advanced | References: Aegir Vendors All vendors on this page are core Aegir developers. Koumbit provides upper end Aegir IaaS and SaaS solutions (in addition to development and traditional web hosting. Omega8.cc specializes more in Aegir. Their offering is very slick and arguably the cheapest/fastest way to get into Aegir. Mig5 offers consulting services. He’s probably the best company in Aegir consulting and can help with things like dev-ops workflows. All vendors on this page are core Aegir developers. Koumbit provides upper end Aegir IaaS and SaaS solutions (in addition to development and traditional web hosting. Omega8.cc specializes more in Aegir. Their offering is very slick and arguably the cheapest/fastest way to get into Aegir. Mig5 offers consulting services. He’s probably the best company in Aegir consulting and can help with things like dev-ops workflows.

35 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Advanced | References: Other Aegir Tricks Clients SSL keys and certificates st-install-configuration/using-ssl Aegir can manage DNS zonefiles Aegir notes on Varnish and Memcache Clients SSL keys and certificates st-install-configuration/using-ssl Aegir can manage DNS zonefiles Aegir notes on Varnish and Memcache

36 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Advanced | References: Extensions Ubercart (w\quotas) HTTP basic auth HTTP basic LDAP Feeds Rules Git Subfolders Backup Garbage Collection Services Puppet Ubercart (w\quotas) HTTP basic auth HTTP basic LDAP Feeds Rules Git Subfolders Backup Garbage Collection Services Puppet Remote Import Varnish Boost ACLs CivilCRM Koumbit Platforms CDN New Relic Etc… Remote Import Varnish Boost ACLs CivilCRM Koumbit Platforms CDN New Relic Etc… More here….

37 THE OHIO STATE UNIVERSITY COLLEGE OF ENGINEERING Questions: What questions do you have?


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