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README.md
hosting.feature.varnish.inc
hosting_varnish.admin.inc
hosting_varnish.drush.inc
hosting_varnish.info
hosting_varnish.install
hosting_varnish.module

README.md

Hosting Varnish

Varnish for Aegir

Installation

Instructions are in progress!

  1. Install and configure Varnish3.
$ sudo apt-get install varnish

Create relevant VCLs (@TODO: elaborate?)

  1. Check that Varnish is properly configured. Create test sites within the Aegir front-end.

Example URLs: - d6.varnish4.localhost - d7.varnish4.localhost

  1. Test that Apache connection is successful:
$ curl -I d7.varnish4.localhost:8080
HTTP/1.1 200 OK
Date: Thu, 07 Aug 2014 19:02:22 GMT
Server: Apache/2.2.22 (Debian)
X-Powered-By: PHP/5.4.4-14+deb7u12
Expires: Sun, 19 Nov 1978 05:00:00 GMT
Last-Modified: Thu, 07 Aug 2014 19:02:22 +0000
Cache-Control: no-cache, must-revalidate, post-check=0, pre-check=0
ETag: "1407438142"
Content-Language: en
X-Generator: Drupal 7 (http://drupal.org)
Vary: Accept-Encoding
Content-Type: text/html; charset=utf-8
  1. Test the expected Varnish MISS:
$ curl -I d7.varnish4.localhost:9999

HTTP/1.1 200 OK
Server: Apache/2.2.22 (Debian)
X-Powered-By: PHP/5.4.4-14+deb7u12
Expires: Sun, 19 Nov 1978 05:00:00 GMT
Last-Modified: Thu, 07 Aug 2014 19:08:57 +0000
Cache-Control: no-cache, must-revalidate, post-check=0, pre-check=0
ETag: "1407438537"
Content-Language: en
X-Generator: Drupal 7 (http://drupal.org)
Vary: Accept-Encoding
Content-Type: text/html; charset=utf-8
Date: Thu, 07 Aug 2014 19:08:58 GMT
X-Varnish: 1490586328
Age: 0
Via: 1.1 varnish
Connection: keep-alive
X-Varnish-Cache: MISS
  1. Update cache settings (on the hosted sites) to allow anonymous caching:

http://d7.varnish4.localhost:8080/admin/config/development/performance

You only need to check Cache pages for anonymous users, and set a max cache time ("Expiration of cached pages").

@TODO: I believe Guillaume automated this step? https://github.com/jonpugh/hosting_varnish/blob/6.x-1.x/hosting_varnish.drush.inc#L14

  1. Verify that the cache gets HIT (on second try):
$ curl -I d7.varnish4.localhost:9999

HTTP/1.1 200 OK
Server: Apache/2.2.22 (Debian)
X-Powered-By: PHP/5.4.4-14+deb7u12
X-Drupal-Cache: MISS
Expires: Sun, 19 Nov 1978 05:00:00 GMT
Last-Modified: Thu, 07 Aug 2014 19:18:34 +0000
Cache-Control: public, max-age=60
ETag: "1407439114-1"
Content-Language: en
X-Generator: Drupal 7 (http://drupal.org)
Vary: Cookie,Accept-Encoding
Content-Type: text/html; charset=utf-8
Date: Thu, 07 Aug 2014 19:18:39 GMT
X-Varnish: 1490586342 1490586339
Age: 5
Via: 1.1 varnish
Connection: keep-alive
X-Varnish-Cache: HIT
  1. Auto-configuring your sites to be cached through Varnish.

Create a new site in the aegir front-end to make sure you have an unconfigured control.

Install and configure hosting_varnish and varnish module. (The default values should work, for just auto-caching.)

Test that the pre-hosting_varnish site still isn't cached:

$ # Do this twice to be 100% sure.
$ curl -I test6.local:9999

HTTP/1.1 200 OK
Server: Apache/2.2.22 (Debian)
X-Powered-By: PHP/5.4.4-14+deb7u12
Expires: Sun, 19 Nov 1978 05:00:00 GMT
Last-Modified: Thu, 07 Aug 2014 21:14:07 +0000
Cache-Control: no-cache, must-revalidate, post-check=0, pre-check=0
ETag: "1407446047"
Content-Language: en
X-Generator: Drupal 7 (http://drupal.org)
Vary: Accept-Encoding
Content-Type: text/html; charset=utf-8
Accept-Ranges: bytes
Date: Thu, 07 Aug 2014 21:14:07 GMT
X-Varnish: 480140253
Age: 0
Via: 1.1 varnish
Connection: keep-alive
X-Varnish-Cache: MISS
  1. Create a site.

Test that the post-hosting_varnish new site still isn't cached:

$ # You need to do this command twice as the first MISS is normal.
$ curl -I test7.local:9999

HTTP/1.1 200 OK
Server: Apache/2.2.22 (Debian)
X-Powered-By: PHP/5.4.4-14+deb7u12
X-Drupal-Cache: MISS
Expires: Sun, 19 Nov 1978 05:00:00 GMT
Last-Modified: Thu, 07 Aug 2014 21:14:11 +0000
Cache-Control: public, max-age=60
ETag: "1407446051-1"
Content-Language: en
X-Generator: Drupal 7 (http://drupal.org)
Vary: Cookie,Accept-Encoding
Content-Type: text/html; charset=utf-8
Date: Thu, 07 Aug 2014 21:14:12 GMT
X-Varnish: 480140256 480140255
Age: 1
Via: 1.1 varnish
Connection: keep-alive
X-Varnish-Cache: HIT