To enable maintenance mode, see this guide:
https://29022131.atlassian.net/wiki/spaces/PI/pages/47939940/Maintenance+Modes
Notes:
There are 2 methods to enable maintenance mode:
If you are using Ansible Tower, you might need to ask for permission first to access and execute the Playbook. Check Playbook Template Page in Ansible Tower, if you don't see "[WEB] [PROD] [TVLB] Set Maintenance Mode", then you need to ask for access. You can contact @web-infra for it.
If you are using Old Deploy App, you should already be able to access it, but it will be deprecated (although you can still access it for now). Choose traveloka-product-old Project, and pick lb-maintenance Playbook.