“Instagration.” That’s Facebook’s term for the live migration of Instagram from Amazon’s servers to a Facebook data center. The firm shared yesterday that it completed the transition without so much as a whisper to Instagram’s 200 million active users. Planning the secret transition took “about a year,” according to Wired, and it was handled by a small team of just eight engineers at first. The actual migration took just one month, led by a 20-person team. According to Instagram founder founder Mike Krieger, the transition required Instagram to first move from Amazon’s EC2 cloud computing service to Amazon’s Virtual Private Cloud. VPC enabled Krieger to “create a logical network that reached beyond Amazon into the Facebook data centre,” Wired reports.