
oslo_config's configfile autodiscovery permits an additional parameter named 'prog', which will add an additional file name to the possible files that are checked in oslo_config directories. This patch adds this parameter to paste-ini initialization, permitting access to more configuration files. This feature is required by glance, as glance does not make use of ./glance/glance.conf. Instead, they use ./glance/glance-api.conf. The appropriate middleware configuration in this case would then be: oslo_config_project=glance oslog_config_program=glance-api Change-Id: Ie530e4fac8076dc46b705770d12940ef91cb4644
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Middlewares and configuration
Middlewares can be configured in multiple fashion depending of the application needs. Here is some use-cases:
Configuration from the application
The application code will looks like:
from oslo_middleware import sizelimit
from oslo_config import cfg
conf = cfg.ConfigOpts()
app = sizelimit.RequestBodySizeLimiter(your_wsgi_application, conf)
Configuration with paste-deploy and the oslo.config
The paste filter (in /etc/my_app/api-paste.ini) will looks like:
[filter:sizelimit]
paste.filter_factory = oslo_middleware.sizelimit:RequestBodySizeLimiter.factory
# In case of the application doesn't use the global oslo.config
# object. The middleware must known the app name to load
# the application configuration, by setting this:
# oslo_config_project = my_app
# In some cases, you may need to specify the program name for the project
# as well.
# oslo_config_program = my_app-api
The oslo.config file of the application (eg: /etc/my_app/my_app.conf) will looks like:
[oslo_middleware]
max_request_body_size=1000
Configuration with pastedeploy only
The paste filter (in /etc/my_app/api-paste.ini) will looks like:
[filter:sizelimit]
paste.filter_factory = oslo_middleware.sizelimit:RequestBodySizeLimiter.factory
max_request_body_size=1000
This will override any configuration done via oslo.config
Note
healtcheck middleware does not yet use oslo.config, see healthcheck_plugins