Fix gnocchi_statsd and ceilometer_agent_ipmi healthcheck

- statsd is connecting to redis only when it receives a data,
  hence to avoid false negatives we will rather test if the service
  is listening on proper port

- ceilometer_agent_ipmi connects to Redis instead of Rabbit for coordination
  now.

Closes-Bug: #1781108
Change-Id: I4414bac82981c30ba6b7c1c8b406baa7a0900e5a
(cherry picked from commit 218065b63e)

healthcheck/ceilometer-agent-ipmi

@@ -3,12 +3,12 @@
 . ${HEALTHCHECK_SCRIPTS:-/usr/share/openstack-tripleo-common/healthcheck}/common.sh
 
 process='ceilometer-polling'
-args="${@:-5671 5672}"
+args="${@:-6379}"
 
 if healthcheck_port $process $args; then
   exit 0
 else
   ports=${args// /,}
-  echo "There is no $process process with opened RabbitMQ ports ($ports) running in the container"
+  echo "There is no $process process with opened Redis ports ($ports) running in the container"
   exit 1
 fi

healthcheck/gnocchi-statsd

@@ -3,12 +3,9 @@
 . ${HEALTHCHECK_SCRIPTS:-/usr/share/openstack-tripleo-common/healthcheck}/common.sh
 
 process='gnocchi-statsd'
-args="${@:-6379}"
+bind_port=$(get_config_val /etc/gnocchi/gnocchi.conf statsd port 8125)
 
-if healthcheck_port $process $args; then
-  exit 0
-else
-  ports=${args// /,}
-  echo "There is no $process process with opened Redis ports ($ports) running in the container"
+if ! healthcheck_listen $process $bind_port; then
+  echo "There is no $process process listening on ports $bind_port in the container."
   exit 1
 fi