The openstack health server stopped working a few months ago and we
ended up shutting down the subunit workers and the health api server as
a result. This means we can stop submitting gearman jobs to process
subunit files.
Also about a year ago we indicated to OpenStack that we could keep the
logstash tooling running through the yoga cycle which is now over. We
haven't had any volunteers or help to continue running the ELK stack in
opendev so we're going to shut it down now that yoga is out the door.
Openstack did end up working with AWS to set up an opensearch
replacement which users can look to for log indexing of CI jobs in
OpenStack.
Change-Id: I5f0f3805e191f0cd6354285299ed33c42d3899fd