问题背景
最近在研究openstack 服务的源代码,由于项目代码较多对其又不熟悉,刚开始就不知道从哪里开始入手分析。经过分析发现,在正式分析源码之前需要对python的wsgi、paste、routes和webob这几个模块有所了解才可以继续深入。在此,就我对paste的学习理解首先分享出来,其余模块接下来会娓娓道来。
研究对象
- Devstack 安装的OpenStack Pike版本的Cinder项目
研究过程
1、打开cinder项目下的paste.ini文件,如下所示:
#############
# OpenStack #
#############
[composite:osapi_volume]
use = call:cinder.api:root_app_factory
/: apiversions
/v1: openstack_volume_api_v1
/v2: openstack_volume_api_v2
/v3: openstack_volume_api_v3
[composite:openstack_volume_api_v1]
use = call:cinder.api.middleware.auth:pipeline_factory
noauth = cors http_proxy_to_wsgi request_id faultwrap sizelimit osprofiler noauth apiv1
keystone = cors http_proxy_to_wsgi request_id faultwrap sizelimit osprofiler authtoken keystonecontext apiv1
keystone_nolimit = cors http_proxy_to_wsgi request_id faultwrap sizelimit osprofiler authtoken keystonecontext apiv1
[composite:openstack_volume_api_v2]
use = call:cinder.api.middleware.auth:pipeline_factory
noauth = cors http_proxy_to_wsgi request_id faultwrap sizelimit osprofiler noauth apiv2
keystone = cors http_proxy_to_wsgi request_id faultwrap sizelimit osprofiler authtoken keystonecontext apiv2
keystone_nolimit = cors http_proxy_to_wsgi request_id faultwrap sizelimit osprofiler authtoken keystonecontext apiv2
[composite:openstack_volume_api_v3]
use = call:cinder.api.middleware.auth:pipeline_factory
noauth = cors http_proxy_to_wsgi request_id faultwrap sizelimit osprofiler noauth apiv3
keystone = cors http_proxy_to_wsgi request_id faultwrap sizelimit osprofiler authtoken keystonecontext apiv3
keystone_nolimit = cors http_proxy_to_wsgi request_id faultwrap sizelimit osprofiler authtoken keystonecontext apiv3
[filter:request_id]
paste.filter_factory = oslo_middleware.request_id:RequestId.factory
[filter:http_proxy_to_wsgi]
paste.filter_factory = oslo_middleware.http_proxy_to_wsgi:HTTPProxyToWSGI.factory
[filter:cors]
paste.filter_factory = oslo_middleware.cors:filter_factory
oslo_config_project = cinder
[filter:faultwrap]
paste.filter_factory = cinder.api.middleware.fault:FaultWrapper.factory
[filter:osprofiler]
paste.filter_factory = osprofiler.web:WsgiMiddleware.factory
[filter:noauth]
paste.filter_factory = cinder.api.middleware.auth:NoAuthMiddleware.factory
[filter:sizelimit]
paste.filter_factory = oslo_middleware.sizelimit:RequestBodySizeLimiter.factory
[app:apiv1]
paste.app_factory = cinder.api.v1.router:APIRouter.factory
[app:apiv2]
paste.app_factory = cinder.api.v2.router:APIRouter.factory
[app:apiv3]
paste.app_factory = cinder.api.v3.router:APIRouter.factory
[pipeline:apiversions]
pipeline = cors http_proxy_to_wsgi faultwrap osvolumeversionapp
[app:osvolumeversionapp]
paste.app_factory = cinder.api.versions:Versions.factory
##########
# Shared #
##########
[filter:keystonecontext]
paste.filter_factory = cinder.api.middleware.auth:CinderKeystoneContext.factory
[filter:authtoken]
paste.filter_factory = keystonemiddleware.auth_token:filter_factory
原文地址:https://www.cnblogs.com/love9527/p/8416751.html
时间: 2024-10-03 07:39:26