From 1bdb39c6dd8ccaf76d8a4aa2e9486069afd2d476 Mon Sep 17 00:00:00 2001 From: mh Date: Mon, 16 Aug 2010 19:01:24 +0200 Subject: impelement itk plus mode itk plus mode is an additional mode to deploy itk based hostings which should be a bit more performant. The idea is that we have two apache-instances running: A) prefork based, listening on the external interface B) itk based, listening on the loopback interface A) will serve all static webpages, as well as possibly serve all static content of dynamic websites. All requests to dynamic content will be redirected to B). The idea is that A) doesn't load any modules to server dynamic content at all. B) will serve all the dynamic scripts of a vhost. This will mean that for vhosts (static ones) as well as static content (all none dynamic scripts) we can benefit from the fast prefork model, while we can use itk's security model for all the dynamic scripts. There are two new additional run_modes: - proxy-itk: this just passes all requests to apache instance B). This one is similar to plain itk based mode and should be used for vhosts that shouldn't (yet) changed to the mixed mode. - static-itk: this passes only requests to dynamic scripts to B) while all static content is served by A). Beware that the user with which A) is running should be member of the run group of B) and all static files need to readable by the group. This reduces the security model you have with plain itk, as the prefork apache user will be able to read php (config-) files of any vhost that runs in static-itk mode. If you want to keep the level of security for a certain vhost, you need to run the specific vhost in proxy-itk mode. Note 1: you cannot run vhosts in itk mode and others in proxy or static itk mode. There is a duplicate file resource definition that blocks that possibility. Note 2: This mode works currently only on CentOS based systems, as no work have been done so far to implement an init.d script that's able to run 2 apache instances. --- manifests/vhost/modperl.pp | 30 ++++++++++++++++++++++++++---- 1 file changed, 26 insertions(+), 4 deletions(-) (limited to 'manifests/vhost/modperl.pp') diff --git a/manifests/vhost/modperl.pp b/manifests/vhost/modperl.pp index ef6b5d7..30083a3 100644 --- a/manifests/vhost/modperl.pp +++ b/manifests/vhost/modperl.pp @@ -1,14 +1,30 @@ -# run_mode: -# - normal: nothing special (*default*) -# - itk: apache is running with the itk module -# and run_uid and run_gid are used as vhost users +# run_mode: controls in which mode the vhost should be run, there are different setups +# possible: +# - normal: (*default*) run vhost with the current active worker (default: prefork) don't +# setup anything special +# - itk: run vhost with the mpm_itk module (Incompatibility: cannot be used in combination +# with 'proxy-itk' & 'static-itk' mode) +# - proxy-itk: run vhost with a dual prefork/itk setup, where prefork just proxies all the +# requests for the itk setup, that listens only on the loobpack device. +# (Incompatibility: cannot be used in combination with the itk setup.) +# - static-itk: run vhost with a dual prefork/itk setup, where prefork serves all the static +# content and proxies the dynamic calls to the itk setup, that listens only on +# the loobpack device (Incompatibility: cannot be used in combination with +# 'itk' mode) +# # run_uid: the uid the vhost should run as with the itk module # run_gid: the gid the vhost should run as with the itk module +# +# mod_security: Whether we use mod_security or not (will include mod_security module) +# - false: don't activate mod_security +# - true: (*default*) activate mod_security +# # logmode: # - default: Do normal logging to CustomLog and ErrorLog # - nologs: Send every logging to /dev/null # - anonym: Don't log ips for CustomLog, send ErrorLog to /dev/null # - semianonym: Don't log ips for CustomLog, log normal ErrorLog +# define apache::vhost::modperl( $ensure = present, $domain = 'absent', @@ -53,6 +69,7 @@ define apache::vhost::modperl( } default: { $real_cgi_binpath = $cgi_binpath } } + file{$real_cgi_binpath: ensure => directory, owner => $documentroot_owner, @@ -60,6 +77,11 @@ define apache::vhost::modperl( mode => $documentroot_mode; } + case $run_mode { + 'proxy-itk','static-itk': { include ::mod_perl::itk_plus } + default: { include ::mod_perl } + } + # create webdir ::apache::vhost::webdir{$name: ensure => $ensure, -- cgit v1.2.3