Richard Bucker

docker and system memory

Posted at — Oct 15, 2018

I created a 1GB server on Digital Ocean, installed CoreOS, docker-machine, docker-compose, deployed traefik and a simple whoami container.I’m pretty certain that it does not support swap even though it has not started to use any but I do see that just that little bit of work used up 800MB (including the OS).What this tells me is that 32x 1GB machines are not the same as 1x 32GB machine. The overhead is just too damn high. On the other hand there is something to be said for adding systems to expand rather than taking the downtime to resize and re-deploy the resident apps.