Ticket #49088 - 389-ds-base rpm postinstall script bugs

Description: The uid and gid of the user dirsrv - the owner of ns-slapd are
(389, 389) if the id is available.  If not, the id was increased by one until
unused id was found.  But there is no such requirement.

This patch follows the Fedora Project UID GID soft static allocation strategy.
https://fedoraproject.org/wiki/Packaging:UsersAndGroups#Soft_static_allocation

Reviewed by William <[email protected]> and Frank <[email protected]>. (Thanks!!)

rpm/389-ds-base.spec.in

@@ -385,24 +385,21 @@ if [ -n "$DEBUGPOSTTRANS" ] ; then
    output2=${DEBUGPOSTTRANS}.upgrade
 fi
 
-has_dirsrv=`/usr/bin/egrep -i "^dirsrv\>" /etc/passwd` || :
-if [ "$has_dirsrv" = "" ]; then
-  dirsrv_uid=389
-    while [ "`getent passwd | awk -F: '{print $3}' | grep $dirsrv_uid`" != "" ]; do
-    dirsrv_uid=`expr $dirsrv_uid + 1`
-  done
-    echo "User dirsrv does not exist, create it with uid %dirsrv_uid." >> $output 2>&1 || :
-  /usr/sbin/useradd -c "389-ds-base" -u $dirsrv_uid \
-      -s /sbin/nologin -r -d /usr/share/dirsrv dirsrv 2> /dev/null || :
-  fi
-  has_dirsrv=`/usr/bin/egrep -i "^dirsrv\>" /etc/group` || :
-  if [ "$has_dirsrv" = "" ]; then
-    dirsrv_gid=389
-  while [ "`getent group | grep $dirsrv_gid`" != "" ]; do
-      dirsrv_gid=`expr $dirsrv_gid + 1`
-    done
-  echo "Group dirsrv does not exist, create it with uid %dirsrv_gid." >> $output 2>&1 || :
-    /usr/sbin/groupadd -g $dirsrv_gid -r dirsrv 2> /dev/null || :
+# https://fedoraproject.org/wiki/Packaging:UsersAndGroups#Soft_static_allocation
+# Soft static allocation for UID and GID
+USERNAME="dirsrv"
+ALLOCATED_UID=389
+GROUPNAME="dirsrv"
+ALLOCATED_GID=389
+HOMEDIR="/usr/share/dirsrv"
+
+getent group $GROUPNAME >/dev/null || groupadd -f -g $ALLOCATED_GID -r $GROUPNAME
+if ! getent passwd $USERNAME >/dev/null ; then
+    if ! getent passwd $ALLOCATED_UID >/dev/null ; then
+      useradd -r -u $ALLOCATED_UID -g $GROUPNAME -d $HOMEDIR -s /sbin/nologin -c "user for 389-ds-base" $USERNAME
+    else
+      useradd -r -g $GROUPNAME -d $HOMEDIR -s /sbin/nologin -c "user for 389-ds-base" $USERNAME
+    fi
 fi
 
 echo looking for instances in %{_sysconfdir}/%{pkgname} > $output 2>&1 || :