The fix for this is already in 3.7 and is available with fix to bug 1562004: https://brewweb.engineering.redhat.com/brew/buildinfo?buildID=713848 but you should really be using https://brewweb.engineering.redhat.com/brew/buildinfo?buildID=716851 which includes another fix. This was to fix Bug 1593297. I am unable to comment on when these images will be publicly available.
See #c5. The errata states in the information section its scheduled for release: 2018-Jul-24
Change back to MODIFIED per Comment https://bugzilla.redhat.com/show_bug.cgi?id=1593312#c11
The fix is in 3.7.58. But the errata will release v3.7.57. so move bug to modified again.
Issue is fixed with logging-fluentd:v3.7.61-2 # docker run -it brew-pulp-docker01.web.prod.ext.phx2.redhat.com:8888/openshift3/logging-fluentd:v3.7.61-2 rpm -qa | grep rubygem-fluent-plugin-elasticsearch rubygem-fluent-plugin-elasticsearch-1.17.0-1.el7.noarch
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2018:2337
The needinfo request[s] on this closed bug have been removed as they have been unresolved for 500 days