monasca-thresh currently runs a local copy of the storm
to handle the threshold topology. However, it doesn't setup
the environment correctly, and the executable fails, causing
the container to continually restart.
This patch updates the container command to correctly
submit the topology to the running Apache storm. The
container will exit after it finishes the submission,
so the restart_policy is updated to on-failure, this way
if the storm is temporarily unavailable, the submission
will be retried. (NOTE: further deploys will see the
container as "changed" as it won't be running)
Patch uses KOLLA_BOOTSTRAP to trigger the container to
check if the topology is already submitted, and if so skips
the submission command so the container doesn't fail.
The config task now triggers a new reconfigure handler that
spawns a one-shot container to replace any existing topology
if the configuration has changed.
Also, all the storm.* variables in storm.yml.j2 are
removed as they were only needed for local mode and
make submitted topologies fail to load when the storm
is restarted (the referenced directories not mounted
on nimbus).
Depends-On: https://review.opendev.org/c/openstack/kolla/+/792751
Closes-Bug: #1808805
Change-Id: Ib225d76076782d695c9387e1c2693bae9a4521d7
aea9bf3550