Use stack variable instead of instance var to indicate retrying after authentication. Otherwise an exception during authentication will wedge for future requests(self._retry_after_authn never reset to false).
Use stack variable instead of instance var to indicate retrying after authentication.
Otherwise an exception during authentication will wedge for future requests(self._retry_after_authn never reset to false).

Change-Id: I441836a400843f41da1c1adcc8700cdd79a85366
(cherry picked from commit 968c2388d3d196c30c0c609a5fb464eaac22e456)

vmahuli/contrail-controller,cloudwatt/contrail-controller,vmahuli/contrail-controller,eonpatapon/contrail-controller,tcpcloud/contrail-controller,codilime/contrail-controller,sajuptpm/contrail-controller,tcpcloud/contrail-controller,vpramo/contrail-controller,cloudwatt/contrail-controller,codilime/contrail-controller,sajuptpm/contrail-controller,codilime/contrail-controller,Juniper/contrail-dev-controller,vmahuli/contrail-controller,numansiddique/contrail-controller,DreamLab/contrail-controller,rombie/contrail-controller,vmahuli/contrail-controller,cloudwatt/contrail-controller,numansiddique/contrail-controller,vmahuli/contrail-controller,facetothefate/contrail-controller,tcpcloud/contrail-controller,tcpcloud/contrail-controller,eonpatapon/contrail-controller,numansiddique/contrail-controller,nischalsheth/contrail-controller,vpramo/contrail-controller,tcpcloud/contrail-controller,eonpatapon/contrail-controller,nischalsheth/contrail-controller,rombie/contrail-controller,vpramo/contrail-controller,sajuptpm/contrail-controller,nischalsheth/contrail-controller,varunarya10/contrail-controller,varunarya10/contrail-controller,rombie/contrail-controller,reiaaoyama/contrail-controller,DreamLab/contrail-controller,Juniper/contrail-dev-controller,eonpatapon/contrail-controller,sajuptpm/contrail-controller,numansiddique/contrail-controller,hthompson6/contrail-controller,reiaaoyama/contrail-controller,facetothefate/contrail-controller,facetothefate/contrail-controller,eonpatapon/contrail-controller,Juniper/contrail-dev-controller,sajuptpm/contrail-controller,srajag/contrail-controller,rombie/contrail-controller,reiaaoyama/contrail-controller,numansiddique/contrail-controller,rombie/contrail-controller,nischalsheth/contrail-controller,DreamLab/contrail-controller,Juniper/contrail-dev-controller,hthompson6/contrail-controller,eonpatapon/contrail-controller,eonpatapon/contrail-controller,nischalsheth/contrail-controller,vpramo/contrail-controller,reiaaoyama/contrail-controller,srajag/contrail-controller,hthompson6/contrail-controller,srajag/contrail-controller,nischalsheth/contrail-controller,codilime/contrail-controller,nischalsheth/contrail-controller,facetothefate/contrail-controller,cloudwatt/contrail-controller,varunarya10/contrail-controller,codilime/contrail-controller,sajuptpm/contrail-controller,reiaaoyama/contrail-controller,cloudwatt/contrail-controller,srajag/contrail-controller,DreamLab/contrail-controller,rombie/contrail-controller,hthompson6/contrail-controller,Juniper/contrail-dev-controller,varunarya10/contrail-controller,varunarya10/contrail-controller,vpramo/contrail-controller,hthompson6/contrail-controller,srajag/contrail-controller,facetothefate/contrail-controller,tcpcloud/contrail-controller,rombie/contrail-controller,DreamLab/contrail-controller,nischalsheth/contrail-controller,codilime/contrail-controller