Downsize asiexac-proxy (ASI Proxy Server) to use RI c4.large

Will execute https://github.com/traveloka/tvlk-asi-prod-terraform-aws/pull/247. And relaunch new instance manually by ASG.

When

2020-03-25 05:00 GMT+7

Impact/Risk

Downtime ~1-2 minutes. Due to we should relaunch new instance each time 1 from 2 instance available. Merely the downtime is not impact full, due to The request still served by other instance. The impacted providers are provider which using proxy in our calling to their side (hotelbeds, jalan, dida).

Rollback Plan

Set back to previous configuration.

PIC

@adinovri