Raise max header size to accommodate large tokens.
Raise max header size to accommodate large tokens.

The max header is exceeded in the following scenario
- Auth tokens built with a keystone v3 API catalog
- A catalog with approximately 8 or more endpoints defined

Specifically, when heat is enabled in tempest gating, the following
tests are failing:
- tempest.api.compute.test_auth_token.AuthTokenTestJSON.test_v3_token
- tempest.api.compute.test_auth_token.AuthTokenTestXML.test_v3_token

An equivalent fix will be required for all projects which use
eventlet.wsgi.

Fixes bug: #1190149

Change-Id: Ia0a2a48461593fdc0f5be57bcc9f364c3e3f8b66

rajalokan/nova,Brocade-OpenSource/OpenStack-DNRM-Nova,DirectXMan12/nova-hacking,bgxavier/nova,tudorvio/nova,eonpatapon/nova,CCI-MOC/nova,CloudServer/nova,viggates/nova,projectcalico/calico-nova,jianghuaw/nova,hanlind/nova,orbitfp7/nova,akash1808/nova_test_latest,klmitch/nova,berrange/nova,devendermishrajio/nova,petrutlucian94/nova_dev,tealover/nova,TwinkleChawla/nova,BeyondTheClouds/nova,OpenAcademy-OpenStack/nova-scheduler,klmitch/nova,vmturbo/nova,JianyuWang/nova,Brocade-OpenSource/OpenStack-DNRM-Nova,CEG-FYP-OpenStack/scheduler,hanlind/nova,vladikr/nova_drafts,Tehsmash/nova,badock/nova,gooddata/openstack-nova,tangfeixiong/nova,BeyondTheClouds/nova,mandeepdhami/nova,jianghuaw/nova,noironetworks/nova,cernops/nova,watonyweng/nova,yosshy/nova,noironetworks/nova,cernops/nova,rickerc/nova_audit,qwefi/nova,petrutlucian94/nova_dev,mahak/nova,shahar-stratoscale/nova,petrutlucian94/nova,virtualopensystems/nova,whitepages/nova,takeshineshiro/nova,jeffrey4l/nova,barnsnake351/nova,DirectXMan12/nova-hacking,yosshy/nova,joker946/nova,TieWei/nova,rajalokan/nova,orbitfp7/nova,akash1808/nova,rajalokan/nova,saleemjaveds/https-github.com-openstack-nova,leilihh/novaha,mahak/nova,apporc/nova,mmnelemane/nova,belmiromoreira/nova,rahulunair/nova,TwinkleChawla/nova,gooddata/openstack-nova,sacharya/nova,plumgrid/plumgrid-nova,Yuriy-Leonov/nova,gooddata/openstack-nova,Stavitsky/nova,jeffrey4l/nova,ted-gould/nova,devendermishrajio/nova_test_latest,cyx1231st/nova,nikesh-mahalka/nova,ntt-sic/nova,felixma/nova,mmnelemane/nova,bclau/nova,kimjaejoong/nova,shail2810/nova,alvarolopez/nova,cloudbase/nova,double12gzh/nova,citrix-openstack-build/nova,phenoxim/nova,devoid/nova,jianghuaw/nova,mikalstill/nova,zzicewind/nova,sebrandon1/nova,thomasem/nova,j-carpentier/nova,akash1808/nova_test_latest,eayunstack/nova,openstack/nova,adelina-t/nova,scripnichenko/nova,alvarolopez/nova,imsplitbit/nova,Juniper/nova,mandeepdhami/nova,Yusuke1987/openstack_template,CloudServer/nova,JianyuWang/nova,apporc/nova,JioCloud/nova,bigswitch/nova,NeCTAR-RC/nova,phenoxim/nova,cyx1231st/nova,yatinkumbhare/openstack-nova,CEG-FYP-OpenStack/scheduler,Metaswitch/calico-nova,dawnpower/nova,tealover/nova,tianweizhang/nova,dims/nova,watonyweng/nova,plumgrid/plumgrid-nova,sebrandon1/nova,mgagne/nova,devendermishrajio/nova_test_latest,cloudbase/nova-virtualbox,raildo/nova,alexandrucoman/vbox-nova-driver,NeCTAR-RC/nova,edulramirez/nova,adelina-t/nova,openstack/nova,ruslanloman/nova,blueboxgroup/nova,zzicewind/nova,vmturbo/nova,JioCloud/nova_test_latest,Juniper/nova,j-carpentier/nova,cloudbau/nova,cernops/nova,alaski/nova,LoHChina/nova,MountainWei/nova,SUSE-Cloud/nova,thomasem/nova,luogangyi/bcec-nova,affo/nova,barnsnake351/nova,Yuriy-Leonov/nova,cloudbase/nova,nikesh-mahalka/nova,eayunstack/nova,LoHChina/nova,cloudbau/nova,bigswitch/nova,eonpatapon/nova,rahulunair/nova,ntt-sic/nova,rrader/nova-docker-plugin,cloudbase/nova,sebrandon1/nova,virtualopensystems/nova,Stavitsky/nova,berrange/nova,BeyondTheClouds/nova,silenceli/nova,klmitch/nova,redhat-openstack/nova,leilihh/novaha,sacharya/nova,shail2810/nova,TieWei/nova,CiscoSystems/nova,alaski/nova,Yusuke1987/openstack_template,bgxavier/nova,rahulunair/nova,angdraug/nova,mgagne/nova,Juniper/nova,angdraug/nova,klmitch/nova,iuliat/nova,vmturbo/nova,dims/nova,tangfeixiong/nova,devoid/nova,rickerc/nova_audit,saleemjaveds/https-github.com-openstack-nova,zhimin711/nova,Juniper/nova,Francis-Liu/animated-broccoli,spring-week-topos/nova-week,ewindisch/nova,badock/nova,shootstar/novatest,ewindisch/nova,affo/nova,hanlind/nova,Tehsmash/nova,JioCloud/nova_test_latest,isyippee/nova,ruslanloman/nova,maelnor/nova,redhat-openstack/nova,eharney/nova,silenceli/nova,rrader/nova-docker-plugin,tanglei528/nova,akash1808/nova,belmiromoreira/nova,cloudbase/nova-virtualbox,alexandrucoman/vbox-nova-driver,mahak/nova,leilihh/nova,eharney/nova,Metaswitch/calico-nova,MountainWei/nova,yatinkumbhare/openstack-nova,openstack/nova,zaina/nova,joker946/nova,JioCloud/nova,fnordahl/nova,gooddata/openstack-nova,CCI-MOC/nova,tianweizhang/nova,isyippee/nova,Francis-Liu/animated-broccoli,projectcalico/calico-nova,edulramirez/nova,shahar-stratoscale/nova,qwefi/nova,leilihh/nova,viggates/nova,SUSE-Cloud/nova,bclau/nova,mikalstill/nova,shootstar/novatest,double12gzh/nova,scripnichenko/nova,zhimin711/nova,tanglei528/nova,devendermishrajio/nova,vladikr/nova_drafts,iuliat/nova,OpenAcademy-OpenStack/nova-scheduler,whitepages/nova,maelnor/nova,vmturbo/nova,ted-gould/nova,rajalokan/nova,imsplitbit/nova,kimjaejoong/nova,citrix-openstack-build/nova,petrutlucian94/nova,spring-week-topos/nova-week,CiscoSystems/nova,jianghuaw/nova,raildo/nova,felixma/nova,DirectXMan12/nova-hacking,varunarya10/nova_test_latest,fnordahl/nova,mikalstill/nova,tudorvio/nova,dawnpower/nova,takeshineshiro/nova,varunarya10/nova_test_latest,blueboxgroup/nova,luogangyi/bcec-nova,zaina/nova