Ooh I can answer this one: because ask people if their container root is writeable, and get amused at the blank stares you get back.
I am currently fighting an ongoing battle at work to point out that the plans for our Mesos cluster have not factored in that the first outage we have will be when someone fills up the 100gb OS SSD because no one's given any thought to where the ephemeral container data goes.
I am a layman to devops. By "ephemeral container data" do you mean temporary files created by the service, temporary files created by the OS / other applications, or something else?
I am currently fighting an ongoing battle at work to point out that the plans for our Mesos cluster have not factored in that the first outage we have will be when someone fills up the 100gb OS SSD because no one's given any thought to where the ephemeral container data goes.