I need to restrict CPU in containers, using latest Ubuntu on host (17.0.4).
$ docker info Containers: 0 Running: 0 Paused: 0 Stopped: 0 Images: 1 Server Version: 17.06.0-ce Storage Driver: overlay2 Backing Filesystem: extfs Supports d_type: true Native Overlay Diff: true Logging Driver: json-file Cgroup Driver: cgroupfs Plugins: Volume: local Network: bridge host macvlan null overlay Log: awslogs fluentd gcplogs gelf journald json-file logentries splunk syslog Swarm: inactive Runtimes: runc Default Runtime: runc Init Binary: docker-init containerd version: cfb82a876ecc11b5ca0977d1733adbe58599088a runc version: 2d41c047c83e09a6d61d464906feb2a2f3c52aa4 init version: 949e6fa Security Options: seccomp Profile: default Kernel Version: 4.9.20-std-1 Operating System: Ubuntu 17.04 OSType: linux Architecture: x86_64 CPUs: 4 Total Memory: 7.753GiB ID: 2JJV:EM37:VCY5:HVKQ:MUNV:VV5N:H247:XE5Q:VBFD:6VES:P62H:YXPJ Docker Root Dir: /var/lib/docker Debug Mode (client): false Debug Mode (server): false Registry: https://index.docker.io/v1/ Experimental: false Insecure Registries: 127.0.0.0/8 Live Restore Enabled: false WARNING: No cpu cfs quota support WARNING: No cpu cfs period support
I’ve looked around, but I haven’t found any resources on how to actually enable CFS quote/period support on Ubuntu. Whenever I try to use --cpus or --cpu-shares I get an error:
NanoCPUs can not be set, as your kernel does not support CPU cfs period/quota or the cgroup is not mounted.
The host runs the latest Ubuntu with 4.9.20 kernel, so it should have support.
Any instructions or a good tutorial on how to mount the cgroup mentioned?
I have the same issue on latest Debian as well, help on Debian would do as well.