mod_mpm for RedHat (#160)

apache/files/RedHat/conf.modules.d/00-mpm.conf.jinja

@@ -0,0 +1,51 @@
+# managed by saltstack
+
+{% set mpm_module = 'mpm_prefork' -%}
+{% set mpm_param = salt['pillar.get']('apache:mod_mpm_prefork', {}) -%}
+{% if pillar.get('apache:mod_mpm_worker') is defined -%}
+{% set mpm_module = 'mpm_worker' -%}
+{% set mpm_param = salt['pillar.get']('apache:mod_mpm_worker', {}) -%}
+{% else -%}
+{% endif -%}
+
+LoadModule {{ mpm_module }}_module modules/mod_{{ mpm_module }}.so
+
+# prefork MPM
+# StartServers: number of server processes to start
+# MinSpareServers: minimum number of server processes which are kept spare
+# ServerLimit: maximum number of server processes
+# MaxSpareServers: maximum number of server processes which are kept spare
+# MaxRequestWorkers: maximum number of server processes allowed to start
+# MaxConnectionsPerChild: maximum number of requests a server process serves
+
+<IfModule mpm_prefork_module>
+	StartServers {{ mpm_param['start_servers'] | d('5') }}
+	MaxRequestWorkers {{ mpm_param['max_request_workers'] | d('150') }}
+{%- if mpm_param['max_request_workers'] | d('150') >= 256 %}
+	ServerLimit {{ mpm_param['max_request_workers'] | d('150') }}
+{%- endif %}
+	MinSpareServers {{ mpm_param['min_spare_servers'] | d('5') }}
+	MaxSpareServers {{ mpm_param['max_spare_servers'] | d('10') }}
+	MaxConnectionsPerChild {{ mpm_param['max_connections_per_child'] | d('0') }}
+</IfModule>
+
+# worker MPM
+# StartServers: initial number of server processes to start
+# MinSpareThreads: minimum number of worker threads which are kept spare
+# MaxSpareThreads: maximum number of worker threads which are kept spare
+# ThreadsPerChild: constant number of worker threads in each server process
+# MaxRequestWorkers: maximum number of worker threads
+# MaxConnectionsPerChild: maximum number of connections a server process serves
+#                         before terminating
+
+<IfModule mpm_worker_module>
+    StartServers {{ mpm_param['start_servers'] | d('2') }}
+    MaxRequestWorkers {{ mpm_param['max_request_workers'] | d('150') }}
+    MinSpareThreads {{ mpm_param['min_spare_threads'] | d('25') }}
+    MaxSpareThreads {{ mpm_param['max_spare_threads'] | d('75') }}
+    ThreadLimit {{ mpm_param['thread_limit'] | d('64') }}
+    ThreadsPerChild {{ mpm_param['threads_per_child'] | d('25') }}
+    MaxConnectionsPerChild {{ mpm_param['max_connections_per_child'] | d('0') }}
+</IfModule>
+
+# vim: syntax=apache ts=4 sw=4 sts=4 sr noet

apache/map.jinja

@@ -73,6 +73,8 @@
         'logrotatedir': '/etc/logrotate.d/httpd',
         'wwwdir': '/var/www',
         'default_charset': 'UTF-8',
+        'use_require': False,
+        'moddir': '/etc/httpd/conf.modules.d',
     },
     'Suse': {
         'server': 'apache2',

apache/mod_mpm.sls

@@ -1,7 +1,8 @@
-{% if grains['os_family']=="Debian" %}
 {% from "apache/map.jinja" import apache with context %}
 {% set mpm_module = salt['pillar.get']('apache:mpm:module', 'mpm_prefork') %}
 
+{% if grains['os_family']=="Debian" %}
+
 include:
   - apache
 
@@ -36,3 +37,21 @@ a2dismod {{ mod }}:
 {% endfor %}
 
 {% endif %}
+
+{% if grains['os_family']=="RedHat" %}
+
+include:
+  - apache
+
+{{ apache.moddir }}/00-mpm-conf.conf:
+  file.managed:
+    - name: {{ apache.moddir }}/00-mpm.conf
+    - template: jinja
+    - source:
+      - salt://apache/files/RedHat/conf.modules.d/00-mpm.conf.jinja
+    - require:
+      - pkg: httpd
+    - watch_in:
+      - module: apache-restart
+
+{% endif %}