Healthcheck for nova_migration_target container

nova_migration_target container reuses nova_compute container,
so we have to adapt the health check to support both containers.

Closes-Bug: #1730649
Change-Id: Id48e32b43d2e0cd4319905131f1c0bee9774e5f0

healthcheck/common.sh

@@ -25,6 +25,21 @@ healthcheck_port () {
   ss -ntp | awk '{print $5,"-",$6}' | egrep ":($ports)" | grep "$process"
 }
 
+healthcheck_listen () {
+  process=$1
+
+  # ss truncate command name to 15 characters and this behaviour
+  # cannot be diabled
+  if [ ${#process} -gt 15 ] ; then
+    process=${process:0:15}
+  fi
+
+  shift 1
+  args=$@
+  ports=${args// /|}
+  ss -lnp | awk '{print $5,"-",$7}' | egrep ":($ports)" | grep "$process"
+}
+
 get_config_val () {
   crudini --get "$1" "$2" "$3" 2> /dev/null || echo "$4"
 }

healthcheck/nova-compute

@@ -2,13 +2,21 @@
 
 . ${HEALTHCHECK_SCRIPTS:-/usr/share/openstack-tripleo-common/healthcheck}/common.sh
 
-process='nova-compute'
-args="${@:-5671 5672}"
+if ps -e | grep nova-compute; then
+  process='nova-compute'
+  args="${@:-5671 5672}"
+  test_func='healthcheck_port'
+  err_msg="There is no $process process with opened RabbitMQ ports (${args// /,}) running in the container"
+else
+  process='sshd'
+  args="${@:-2022}"
+  test_func='healthcheck_listen'
+  err_msg="There is no $process process listening on port(s) ${args// /,} in the container"
+fi
 
-if healthcheck_port $process $args; then
+if $test_func $process $args; then
   exit 0
 else
-  ports=${args// /,}
-  echo "There is no $process process with opened RabbitMQ ports ($ports) running in the container"
+  echo $err_msg
   exit 1
 fi