apache-frontend: Make http2 and MPM configuration option

  Allow http2 protocol be enable or disable by default
  Allow set certain configurations for MPM to control the number of process and threads.

software/apache-frontend/buildout.hash.cfg

@@ -39,7 +39,7 @@ md5sum = 665e83d660c9b779249b2179d7ce4b4e
 
 [template-apache-frontend-configuration]
 filename = templates/apache.conf.in
-md5sum = 771861ed82411730d95695c107c2bd4e
+md5sum = 070658d10546b5a69fe291e0da876e62
 
 [template-custom-slave-list]
 filename = templates/apache-custom-slave-list.cfg.in
@@ -55,7 +55,7 @@ md5sum = d98a01182f38868612948c87d5231428
 
 [template-default-slave-virtualhost]
 filename = templates/default-virtualhost.conf.in
-md5sum = cc7c80148d29154ae6444cbd0613c890
+md5sum = 5344bff68a3f7dead633a35771ad1a19
 
 [template-cached-slave-virtualhost]
 filename = templates/cached-virtualhost.conf.in

software/apache-frontend/instance-apache-input-schema.json

@@ -14,7 +14,44 @@
 			"description": "Value used to set IPReadLimit Parameter for antiloris.",
 			"type": "integer",
 			"default": 10
-		},		
+		},
+                "mpm-server-limit": {
+                        "title": "ServerLimit",
+                        "description": "Value used to set ServerLimit on apache configuration.",
+                        "type": "integer",
+                        "default": 16
+                },
+                "mpm-max-clients": {
+                        "title": "MaxClients",
+                        "description": "Value used to set MaxClients on apache configuration.",
+                        "type": "integer",
+                        "default": 400
+                },
+                "mpm-start-servers": {
+                        "title": "StartServers",
+                        "description": "Value used to set StartServers on apache configuration.",
+                        "type": "integer",
+                        "default": 3
+                },
+                "mpm-thread-per-child": {
+                        "title": "ThreadsPerChild",
+                        "description": "Value used to set ThreadsPerChild on apache configuration.",
+                        "type": "integer",
+                        "default": 25
+                },
+                "mpm-graceful-shutdown-timeout": {
+                        "title": "ThreadsPerChild",
+                        "description": "Value used to set ThreadsPerChild on apache configuration.",
+                        "type": "integer",
+                        "default": 5
+                },
+                "enable-http2-by-default": {
+                        "title": "Enable HTTP2 by Default",
+                        "description": "Use HTTP2 as default Protocol",
+                        "type": "string",
+                        "default": "true",
+                        "enum": ["true", "false"]
+                },
                 "re6st-verification-url": {
 			"title": "Test Verification URL",
 			"description": "Url to verify if the internet and/or re6stnet is working.",

software/apache-frontend/instance-slave-apache-input-schema.json

@@ -140,7 +140,13 @@
       "default": "false",
       "enum": ["false", "true"]
     },
-
+    "enable-http2": {
+      "title": "Enable HTTP2 Protocol",
+      "description": "Use HTTP2 Protocol for the site",
+      "type": "string",
+      "default": "true",
+      "enum": ["true", "false"]
+    },
     "prefer-gzip-encoding-to-backend": {
       "title": "Prefer gzip Encoding for Backend",
       "description": "If set to true, frontend will rewrite Accept-Encoding request header to simply 'gzip' for all variants of Accept-Encoding containing 'gzip', in order to maximize cache hits for resources cached with Vary: Accept-Encoding when enable_cache is used",

software/apache-frontend/templates/apache.conf.in

@@ -16,7 +16,6 @@ ServerRoot {{ instance_home }}
 {% endfor -%}
 
 ServerAdmin {{ server_admin }}
-DefaultType text/plain
 TypesConfig {{ httpd_home }}/conf/mime.types
 AddType application/x-compress .Z
 AddType application/x-gzip .gz .tgz
@@ -105,6 +104,11 @@ BrowserMatch "^gnome-vfs" redirect-carefully
 BrowserMatch "^XML Spy" redirect-carefully
 BrowserMatch "^Dreamweaver-WebDAV-SCM1" redirect-carefully
 
+
+{% if slapparameter_dict.get('enable-http2-by-default', 'true') == 'true' %}
+Protocols h2 http/1.1
+{% endif %}
+
 # Increase IPReadLimit to 10
 <IfModule antiloris_module>
    # IPReadLimit - Maximum simultaneous connections in READ state per IP address 
@@ -125,7 +129,12 @@ ExtendedStatus On
     Require valid-user
 </Location>
 
-
+ServerLimit {{ slapparameter_dict.get('mpm-server-limit', '16') }}
+MaxClients {{ slapparameter_dict.get('mpm-max-clients', '400') }}
+StartServers {{ slapparameter_dict.get('mpm-start-servers', '3') }}
+ThreadsPerChild {{ slapparameter_dict.get('mpm-thread-per-child', '25') }}
+#MaxRequestsPerChild 0 // Default value is 0
+GracefulShutdownTimeout {{ slapparameter_dict.get('mpm-graceful-shutdown-timeout', '5') }}
 
 # Deflate
 AddOutputFilterByType DEFLATE text/html text/plain text/xml text/css text/javascript application/x-javascript application/javascript
@@ -156,13 +165,7 @@ SSLProxyCheckPeerCN off
 SSLProxyCheckPeerExpire off
 
 include {{frontend_configuration.get('log-access-configuration')}}
-
-NameVirtualHost *:{{ http_port }}
-NameVirtualHost *:{{ https_port }}
 include {{ slave_configuration_directory }}/*.conf
-
-NameVirtualHost *:{{ cached_port }}
-NameVirtualHost *:{{ ssl_cached_port }}
 include {{ slave_with_cache_configuration_directory }}/*.conf
 
 ErrorDocument 404 /notfound.html

software/apache-frontend/templates/default-virtualhost.conf.in

@@ -3,6 +3,7 @@
 {%- set disable_via_header = ('' ~ slave_parameter.get('disable-via-header', '')).lower() in TRUE_VALUES -%}
 {%- set prefer_gzip = ('' ~ slave_parameter.get('prefer-gzip-encoding-to-backend', '')).lower() in TRUE_VALUES -%}
 {%- set server_alias_list =  slave_parameter.get('server-alias', '').split() -%}
+{%- set enable_h2 = ('' ~ slave_parameter.get('enable-http2', 'true')).lower() in TRUE_VALUES -%}
 {%- set ssl_proxy_verify = ('' ~ slave_parameter.get('ssl-proxy-verify', '')).lower() in TRUE_VALUES -%}
 {%- set disabled_cookie_list =  slave_parameter.get('disabled-cookie-list', '').split() -%}
 {%- set https_only = ('' ~ slave_parameter.get('https-only', '')).lower() in TRUE_VALUES -%}
@@ -33,8 +34,10 @@
   SSLProtocol all -SSLv2 -SSLv3
   SSLCipherSuite ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:ECDH+3DES:DH+3DES:RSA+AESGCM:RSA+AES:RSA+3DES:HIGH:!aNULL:!MD5
   SSLHonorCipherOrder on
-  Protocols h2 http/1.1
 
+{% if enable_h2 %}
+  Protocols h2 http/1.1
+{% endif -%}
 
 {% for key, value in ssl_configuration_list -%}
 {%   if value in slave_parameter -%}
@@ -123,7 +126,9 @@
   # Remove "Secure" from cookies, as backend may be https
   Header edit Set-Cookie "(?i)^(.+);secure$" "$1"
 
+{% if enable_h2 %}
   Protocols h2 http/1.1
+{% endif -%}
 
 {% if disable_no_cache_header %}
   RequestHeader unset Cache-Control