use user level ACLs for prepare and not group as this is broken for the

moment and won't be used in production (egroups).

continuousintegration/docker/ctafrontend/cc7/opt/run/bin/ctaeos-mgm.sh

@@ -158,7 +158,7 @@ test -e /usr/lib64/libjemalloc.so.1 && export LD_PRELOAD=/usr/lib64/libjemalloc.
   # ACLs in EOS are evaluated when unix permissions are failing, hence the 555 unix permission.
   eos mkdir ${CTA_TEST_DIR}
   eos chmod 555 ${CTA_TEST_DIR}
-  eos attr set sys.acl=g:eosusers:rwx!d,g:powerusers:rwx+dp /eos/ctaeos/cta
+  eos attr set sys.acl=g:eosusers:rwx!d,u:poweruser1:rwx+dp /eos/ctaeos/cta
 
   eos attr set CTA_StorageClass=ctaStorageClass ${CTA_TEST_DIR}
     

continuousintegration/docker/ctafrontend/cc7/opt/run/bin/eos_configure_preprod.sh

@@ -8,7 +8,7 @@ chmod 755 /var/eos/wfe/bash/*
 
 eos mkdir ${PREPROD_DIR}
 eos chmod 555 ${PREPROD_DIR}
-eos attr set sys.acl=g:eosusers:rwx!d,g:powerusers:rwx+dp ${PREPROD_DIR}
+eos attr set sys.acl=g:eosusers:rwx!d,u:poweruser1:rwx+dp ${PREPROD_DIR}
 
 eos attr set CTA_StorageClass=ctaStorageClass ${PREPROD_DIR}