Docker calculate-sources CGroup support

Discussions & Opinions
1

Hi,

I am a huge fan and long time user of Calculate. Thank you for all the work that is put into the distribution!

I am trying to use Docker [1] which requires some CGroup options to be enabled in the kernel configuration. However, these do not seem to be enabled for calculate-sources, at least for version 3.14.6.

Could these please be added to the kernel configuration? I tried building my own kernel, but it just hangs at the initrd phase :-(.

Matt

[1] http://docker.io

[2] http://docker.readthedocs.org/en/v0.7.3/installation/kernel/

2

Follow-up: I just discovered the “cl-kernel” utility – and it now works! Calculate FTW!

It would still be great to get CGroups in the default config, if there are any developers out there that could make that happen.

3

Support will appear in a future kernel update.

4

Hi Matthew con you explain how you do it? I try and try and try but I don’t success it. I open a bug ticket six month ago to change the default kernel config but nothing.

Thanks

5

Hi Victor,

Here are the basic steps I use. Assume a 3.19.8 kernel, but it works the same with other versions:

emerge calculate-sources:3.19.8
cd /usr/src
ln -s linux-3.19.8-calculate linux
cd linux
make menuconfig
# Add the options from here: https://wiki.gentoo.org/wiki/LXC
CONFIG=.config lxc-checkconfig
make -j12
make modules_install
make install
dracut -H /boot/initramfs-3.19.8-calculate.img 3.19.8-calculate
grub-mkconfig > /boot/grub/grub.cfg

Hope this helps.

6

Thanks Matthew, I think that you did it with the calculate template kernel configurations.

Thanks a lot!