I remember going to a demo of Docker in South Carolina before it hit 1.0. Came back and wrote the “Docker is the Heroku Killer” article on my blog and it was the first thing I wrote that made the front page of HN.

▲

tonyhart7 a day ago | parent [-]

but heroku and docker serve different purpose no ???

	▲	brightball 13 hours ago \| parent \| next [-]
		In 2014, Heroku was the only game in town on the PaaS front. Nobody else was even close. Java App Servers with their WAR file deployments across a cluster were the closest equivalent. Docker was the enabler for alternatives.
	▲	akoboldfrying a day ago \| parent \| prev [-]
		They aren't at all the same thing, but at a high level they both reduce the amount of fragile/tedious setup-specific futzing you need to do to get a few basic services up.