Scheduled Scaling

Maximo-CPI includes a scheduled scaling feature with two scripts: scale-manage.sh and mas-manage-scheduled-scaling-sample.sh.

scale-manage.sh: the script to change the replica value based on manage bundle name

• Command Syntax: scale-manage.sh <namespace name> <manageworkspacecr name> <bundle name> <replica value>. e.g. scale-manage.sh mas-masinst1-manage masinst1-tenant1 ui 5
• File located at /opt/app-root/src/cron/scale-manage.sh

mas-manage-scheduled-scaling-sample.sh: the cron script to call scale-manage.sh

• Sample file is located at /opt/app-root/src/cron/hourly/mas-manage-scheduled-scaling-sample.sh
• Modify the file by updating the date, namespace name, managecr name, replica value to suit the needs. Sample Code Snippet

  #!/bin/bash
  
  current_hour=$(date +"%H")
  
  # scale up manage ui bundle replica to 5 at 8am.
  if [ "$current_hour" == "08" ]; then
      echo "$(date '+%Y-%m-%d %H:%M:%S') - info: scaling up manage ui pods from 2 to 5"
      scale-manage.sh mas-masinst1-manage masinst1-tenant1 ui 5
  fi
  
  # scale down manage ui bundle replica to 2 at 6pm. 
  if [ "$current_hour" == "18" ]; then
      echo "$(date '+%Y-%m-%d %H:%M:%S') - info: scaling down manage ui pods from 5 to 2"
      scale-manage.sh mas-masinst1-manage masinst1-tenant1 ui 2
  fi
  

• Copy the script to the cron hourly folder: cp /opt/app-root/src/cron/hourly/mas-manage-scheduled-scaling-sample.sh /etc/cron.hourly
• Maximo-CPI includes a Cronie service that runs the script every hour