Update all docker sample extra environment vars
Update all docker sample extra environment vars

Bring docker sample extra environment variables in sync with the global
defaults for each role. Previous definitions were no longer used.

WingkaiHo/ceph-ansible,font/ceph-ansible,jtaleric/ceph-ansible,WingkaiHo/ceph-ansible,bengland2/ceph-ansible,travmi/ceph-ansible,bengland2/ceph-ansible,fgal/ceph-ansible,WingkaiHo/ceph-ansible,fgal/ceph-ansible,font/ceph-ansible,jtaleric/ceph-ansible,travmi/ceph-ansible,ceph/ceph-ansible,albertomurillo/ceph-ansible,albertomurillo/ceph-ansible,ceph/ceph-ansible,albertomurillo/ceph-ansible