axtari-postgres migration to astari-postgres + minor version upgrade from 10.6 to 10.9 (finished)

Hi guys, heads up. We will have a downtime during our axtari-postgres to astari-postgres migration and minor version upgrade from 10.6 to 10.9.

The schedule will be on, Wednesday, 24th July 2019, 2 AM. Whole migration and upgrade process should take around 1-3 hours. Expected down time should take around 2-3 hours.

Features affected:

Please help to disable the feature at least on 24th July 2019, 1 AM (1 hour before upgrade). We will re-enable them again after migration and upgrade is finished.

PM/ Stakeholders: @haditan, @daniel.yeoda, @jeanenatalialie, @stefani.leticia, @Deo, @naufal.faris, @Surya, @navajo
Site-Infra: @darwinwirawan
BE: @febryantonius, @Gujarat Santana
PDA: @micky, @willy

Cc: @ihabibi

Migration plan: https://docs.google.com/document/d/1PZoDwUbaHuvG8KakdN8XwZMxckachQKWdRpaa8XiDx4

Reference: Security Update Notification PostgreSQL 10 and PostgreSQL 11 instances in Amazon RDS https://tvlk.slack.com/archives/C0GLAH89W/p1563266666067800