logs rabbitmq mem. percent and save file to rabbitmq log dir

playbooks/roles/rabbitmq/defaults/main.yml

@@ -5,7 +5,6 @@ rabbitmq_app_dir: "{{ COMMON_APP_DIR }}/rabbitmq"
 rabbitmq_data_dir: "{{ COMMON_DATA_DIR }}/rabbitmq"
 rabbitmq_log_dir: "{{ COMMON_LOG_DIR }}/rabbitmq"
 rabbitmq_cfg_dir: "{{ COMMON_CFG_DIR }}/rabbitmq"
-rabbitmq_mem_log: "{{ COMMON_LOG_DIR }}/rabbitmq.memory.log"
 
 rabbitmq_user: "rabbitmq"
 rabbitmq_group: "rabbitmq"

playbooks/roles/rabbitmq/templates/edx/app/rabbitmq/log-rabbitmq-memory.sh.j2

 #!/usr/bin/env bash
 set -x
 
-log_file={{ rabbitmq_mem_log }}
+log_directory={{ rabbitmq_log_dir }}
 
 {% raw %}
-memusg=`/usr/sbin/rabbitmqctl status | grep total | awk -F',|}' -v date="$(date)" 'NR==1{printf date"\tRabbitMQ Memory Usage:(MB) " $2/(1024 * 1024)}'`
-echo $memusg >> $log_file
+MemTotal=`grep 'MemTotal' /proc/meminfo | awk '{print $2}'`
+memusg=`/usr/sbin/rabbitmqctl status | grep total | awk -F',|}' -v date="$(date)" -v MemTotal="$MemTotal" 'NR==1{printf date"\tRabbitMQ Memory Usage:(%%)\t" ((($2/1024)/MemTotal)*100)}'`
+echo $memusg >> "$log_directory/rabbitmq.memory.log"
 {% endraw %}

playbooks/roles/rabbitmq/templates/etc/logrotate.d/rabbitmq.j2

 # We want to hit the top level queues and any vhost queues
 # such as notifier and fulfillment
-{{ rabbitmq_log_dir }}/*.log {{ rabbitmq_log_dir }}/*/*.log {{ rabbitmq_mem_log }}{
+{{ rabbitmq_log_dir }}/*.log {{ rabbitmq_log_dir }}/*/*.log {
   compress
   dateext
   dateformat -%Y%m%d-%s