Add iptables rule for Ironic VMs -> Swift
Add iptables rule for Ironic VMs -> Swift

The agent ramdisk gets instance images from swift, set firewall
rules to allow this.

Also configure Ironic API port using the correct variable, and
use SWIFT_DEFAULT_BIND_PORT for Swift ports everywhere.

Change-Id: Ieec8cc64e504b04a21daa49e90e2d4925f4838ee

Mahito/devstack,nuxeh/devstack,neerja28/Devstack_GlusterFS,bigswitch/devstack,ozamiatin/devstack,neerja28/Devstack_GlusterFS,dirkmueller/devstack,pacinete/devstack,wenhuizhang/devstack,thomasem/devstack,olivierlemasle/devstack,mc2014/devstack,nuxeh/devstack,noironetworks/devstack,varunarya10/devstack,dirkmueller/devstack,LoHChina/devstack,herrsechs/devstack,atulpatil301/devstack,herrsechs/devstack,costingalan/devstack,bq-xiao/devstack,varunarya10/devstack,HPCHub/devstack,parul24/devstack,liuquansheng47/devstack,sc68cal/devstack,costingalan/devstack,kplus/devstack-moonshot,group-policy/devstack,andrewrothstein/devstack,mc2014/devstack,parul24/devstack,prithivm/branch01,wenhuizhang/devstack,olivierlemasle/devstack,pczerkas/devstack,CloudServer/devstack,NaokiMiyata/devstack,sc68cal/devstack,LoHChina/devstack,bljgaurav/openstack-test,vsham20/devstack,bljgaurav/openstack-test,Mahito/devstack,HPCHub/devstack,dtroyer/devstack,bigswitch/devstack,promptworks/devstack,eharney/devstack,sequenceiq/devstack,nawawi/openstack,group-policy/devstack,prithivm/branch01,kplus/devstack-moonshot,atulpatil301/devstack,richliu/devstack,dtroyer/devstack,TwinkleChawla/devstack,samgoon/devstack,bq-xiao/devstack,sequenceiq/devstack,mmasaki/devstack,pczerkas/devstack,promptworks/devstack,j4/devstack,liuquansheng47/devstack,bswartz/devstack,pombredanne/devstack,andrewrothstein/devstack,rushiagr/devstack,mmasaki/devstack,nawawi/openstack,noironetworks/devstack,rushiagr/devstack,CloudServer/devstack,mssumanth/devstack,TwinkleChawla/devstack,BSJAIN92/OpenStack,thomasem/devstack,bswartz/devstack,upadhyay-prashant/devstack,mssumanth/devstack,avvocatodemarchis/devstack,pombredanne/devstack,NaokiMiyata/devstack,vsham20/devstack,pacinete/devstack,richliu/devstack,affo/devstack,avvocatodemarchis/devstack,samgoon/devstack,ozamiatin/devstack,flavio-fernandes/devstack,vishnugonela/devstack,eharney/devstack,openstack-dev/devstack,affo/devstack,openstack-dev/devstack,vishnugonela/devstack,j4/devstack,upadhyay-prashant/devstack,flavio-fernandes/devstack,BSJAIN92/OpenStack