Role Name

This role addresses the

WARNING: No swap limit support

warning shown in docker info by changing the configuration of grub.

The docker documentation highlights this issue and provides instructions for fixing it by reconfiguring grub.

In short:

This role modifies /etc/defaults/grub to include

GRUB_CMDLINE_LINUX="cgroup_enable=memory swapaccount=1"

Requirements

None

Role Variables

Refer to defaults/main.yml.

Dependencies

None

Example Playbook

To update grub and reboot

- hosts: docker_hosts
  roles:
     - role: mtze.docker-swap-grub
       vars: 

To update grub without rebooting

- hosts: docker_hosts
  roles:
     - role: mtze.docker-swap-grub
       vars: 
         allow_reboot: false

License

MIT