ERP5: add the ability to run in WSGI mode

software/erp5/instance-erp5-input-schema.json

@@ -111,6 +111,11 @@
       },
       "type": "object"
     },
+    "wsgi": {
+      "description": "If set to true, Zope is run as a WSGI application, instead of using the Medusa HTTP server.",
+      "type": "boolean",
+      "default": false
+    },
     "zope-partition-dict": {
       "description": "Zope layout definition",
       "default": {

stack/erp5/buildout.cfg

@@ -564,19 +564,26 @@ eggs = ${neoppod:eggs}
   unidiff
   jsonpickle
 
+# WSGI server
+  zope.globalrequest
+  waitress
+
 # parameterizing the version of the generated python interpreter name by the
 # python section version causes dependency between this egg section and the
 # installation of python, which we don't want on an instance
 interpreter = ${buildout:python}
+entry-points =
+  runwsgi=Products.ERP5.bin.zopewsgi:runwsgi
 scripts =
   ${caucase-eggs:scripts}
   apachedex
   repozo
+  runwsgi
   runzope
   runzeo
   tidstoraged
   tidstorage_repozo
-  web_checker_utility = erp5.util.webchecker:web_checker_utility
+  web_checker_utility
 
 extra-paths =
   ${erp5:location}
@@ -740,6 +747,8 @@ zbarlight = 2.0
 cloudpickle = 0.5.3
 dask = 0.18.1
 toolz = 0.9.0
+zope.globalrequest = 1.5
+waitress = 1.3.0
 
 # Re-add for as it is required to be there for uninstallation
 erp5.recipe.w3validator = 1.0.2

stack/erp5/buildout.hash.cfg

@@ -34,7 +34,7 @@ md5sum = fe6ae121134a0e5bdb060073478be44e
 
 [template-zope-conf]
 filename = zope.conf.in
-md5sum = adb25a1ab15c8aecf40a3952528f81c2
+md5sum = 616e55d8e7cd540f0a795244a11c77a8
 
 [site-zcml]
 filename = site.zcml
@@ -78,7 +78,7 @@ md5sum = d41d8cd98f00b204e9800998ecf8427e
 
 [template-erp5]
 filename = instance-erp5.cfg.in
-md5sum = 4e03b3fba30162019eae76132555dcde
+md5sum = 0081fcb642d851fe1b03659fe7d205b7
 
 [template-zeo]
 filename = instance-zeo.cfg.in
@@ -86,7 +86,7 @@ md5sum = d400c3d449ce437a0ded77ee3d5c5df2
 
 [template-zope]
 filename = instance-zope.cfg.in
-md5sum = 5cbfcc02ffe6c2ae8cdf412134addd8f
+md5sum = db1afd4112782fd9328926a0dc6e41d6
 
 [template-balancer]
 filename = instance-balancer.cfg.in

stack/erp5/instance-erp5.cfg.in

@@ -227,6 +227,7 @@ config-longrequest-logger-timeout = {{ dumps(zope_parameter_dict.get('longreques
 config-large-file-threshold = {{ dumps(zope_parameter_dict.get('large-file-threshold', "10MB")) }}
 config-port-base = {{ dumps(zope_parameter_dict.get('port-base', 2200)) }}
 config-webdav = {{ dumps(zope_parameter_dict.get('webdav', False)) }}
+config-wsgi = {{ dumps(slapparameter_dict.get('wsgi', False)) }}
 {%   if test_runner_enabled -%}
 config-test-runner-apache-url-list = ${publish-early:{{ zope_family }}-test-runner-url-list}
 {%   endif -%}

stack/erp5/instance-zope.cfg.in

+{% set wsgi = slapparameter_dict['wsgi'] -%}
+{% set webdav = slapparameter_dict['webdav'] -%}
 {% set use_ipv6 = slapparameter_dict.get('use-ipv6', False) -%}
 {% set next_port = itertools.count(slapparameter_dict['port-base']).next -%}
 {% set site_id = slapparameter_dict['site-id'] -%}
@@ -182,7 +184,11 @@ pem = {{dumps(storage_dict.pop(k))}}
 [runzope-base]
 <= run-common
 instance-home = ${directory:instance}
+{% if wsgi -%}
+wrapped-command-line = '{{ bin_directory }}/runwsgi' {% if webdav %}-w{% endif %} {{ ipv4 }}:{{ next_port() }} '${:configuration-file}'
+{% else -%}
 wrapped-command-line = '{{ bin_directory }}/runzope' -C '${:configuration-file}'
+{%- endif %}
 private-dev-shm = {{ slapparameter_dict['private-dev-shm'] }}
 
 [{{ section('zcml') }}]
@@ -249,13 +255,13 @@ tidstorage-port = {{ dumps(slapparameter_dict['tidstorage-port']) }}
 {% set thread_amount = slapparameter_dict['thread-amount'] -%}
 {% set large_file_threshold = slapparameter_dict['large-file-threshold']  -%}
 thread-amount = {{ thread_amount }}
-{% set webdav = slapparameter_dict['webdav'] -%}
 webdav = {{ dumps(webdav) }}
 {% if webdav -%}
 {%   set timerserver_interval = 0 -%}
 {% else -%}
 {%   set timerserver_interval = slapparameter_dict['timerserver-interval'] -%}
 {%- endif %}
+wsgi = {{ dumps(wsgi) }}
 timerserver-interval = {{ dumps(timerserver_interval) }}
 
 [zope-conf-base]

stack/erp5/zope.conf.in

@@ -22,15 +22,17 @@ rest-output-encoding utf-8
 # XXX: isn't this entry implicit ?
 products {{ parameter_dict['instance-products'] }}
 
-{% if parameter_dict['webdav'] -%}
+{% if not parameter_dict['wsgi'] -%}
+{%   if parameter_dict['webdav'] -%}
 <webdav-source-server>
   address {{ parameter_dict['ip'] }}:{{ parameter_dict['port'] }}
   force-connection-close off
 </webdav-source-server>
-{% else %}
+{%   else %}
 <http-server>
   address {{ parameter_dict['ip'] }}:{{ parameter_dict['port'] }}
 </http-server>
+{%   endif %}
 {%- endif %}
 
 <zoperunner>