How to limit size of docker containers after created to manage server disk

General Discussions
1

Four containers are running for two customers in the same node/server (each of them have two containers). Now they can consume the whole disk space of the server, but I want to limit their usage. For example, containers A and B can only use 10GB, and C and D can only use 5GB.

In order to reach this, I ran a VM in Oracle VirtualBox with XFS format, did edit /etc/default/grub to GRUB_CMDLINE_LINUX_DEFAULT="rootflags=uquota,pquota" and reboot the VM as mentioned here and here, and also have done what’s said in here.

Then after having rebooted the VM, I did docker exec -it NAME bash and then dd if=/dev/zero of=somefile bs=1G count=200", and I saw a 200GB file is created with no issue.

I run container with docker run -d --storage-opt --size=10G IMAGE and tested dd and it was created.

I also tried with docker-compose to have multiple containers in one group, like this:

volumes:
 SOMENAME: {}
 tmpfs:
  driver: local
  driver_opts:
   o: "size:10G"
   device: tmpfs
   type: tmpfs

Are there ways to manage hard disk so that containers would not consume more than some defined sizes?

2

tmpfs is ramdisk storage. To limit disk volumes you’ll need to use a storage driver plugin. See Use Docker Engine plugins | Docker Documentation

I know flocker and convoy provide quota options.

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