Resolved Local docker node missing

[Tobias Masiak]

Dear all,

I get the following error: "Warnung: Lokaler Docker Node fehlt. Lesen Sie diesen KB-Artikel, um das Problem zu lösen.
Remote-Nodes sind nur in der kostenpflichtigen Version der Erweiterung verfügbar. Sie können die Erweiterung hier kaufen." which means that I cannot run Docker, because a local Docker node is missing.

The error messages says I should take a look at a KB-Article, but the link doesn't refere to a goal. It only refers to this side: https://kb.plesk.com/

Any ideas on how to get docker installed:

I read out the errors from "systemctl status docker.service"

● docker.service - Docker Application Container Engine
Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled; vendor preset: disabled)
Active: failed (Result: exit-code) since So 2017-03-19 22:04:38 CET; 49s ago
Docs: http://docs.docker.com
Process: 6416 ExecStart=/usr/bin/dockerd-current --add-runtime docker-runc=/usr/libexec/docker/docker-runc-current --default-runtime=docker-runc --exec-opt native.cgroupdriver=systemd --userland-proxy-path=/usr/libexec/docker/docker-proxy-current $OPTIONS $DOCKER_STORAGE_OPTIONS $DOCKER_NETWORK_OPTIONS $ADD_REGISTRY $BLOCK_REGISTRY $INSECURE_REGISTRY (code=exited, status=1/FAILURE)
Main PID: 6416 (code=exited, status=1/FAILURE)

Mär 19 22:04:38 xxx dockerd-current[6416]: time="2017-03-19T22:04:38.878415060+01:00" level=error msg="'overlay' not found as a supported filesystem on this host. Please ens...ort loaded."
Mär 19 22:04:38 xxx dockerd-current[6416]: time="2017-03-19T22:04:38.878594790+01:00" level=warning msg="Docker could not enable SELinux on the host system"
Mär 19 22:04:38 xxx dockerd-current[6416]: time="2017-03-19T22:04:38.883155413+01:00" level=info msg="Graph migration to content-addressability took 0.00 seconds"
Mär 19 22:04:38 xxx dockerd-current[6416]: time="2017-03-19T22:04:38.883294591+01:00" level=warning msg="Your kernel does not support oom control."
Mär 19 22:04:38 xxx dockerd-current[6416]: time="2017-03-19T22:04:38.883315354+01:00" level=warning msg="Your kernel does not support memory swappiness."
Mär 19 22:04:38 xxx dockerd-current[6416]: time="2017-03-19T22:04:38.883330464+01:00" level=warning msg="Your kernel does not support kernel memory limit."
Mär 19 22:04:38 xxx dockerd-current[6416]: time="2017-03-19T22:04:38.883341074+01:00" level=warning msg="Unable to find cpu cgroup in mounts"
Mär 19 22:04:38 xxx dockerd-current[6416]: time="2017-03-19T22:04:38.883382713+01:00" level=warning msg="Unable to find cpuset cgroup in mounts"
Mär 19 22:04:38 xxx dockerd-current[6416]: time="2017-03-19T22:04:38.883423854+01:00" level=warning msg="mountpoint for pids not found"
Mär 19 22:04:38 xxx dockerd-current[6416]: time="2017-03-19T22:04:38.883520159+01:00" level=fatal msg="Error starting daemon: Devices cgroup isn't mounted"
Hint: Some lines were ellipsized, use -l to show in full.

My system:
OS: CentOS Linux 7.3.1611 (Core)‬
Product: Plesk Onyx Version 17.0.17 Update #19

 

[UFHH01]

Hi Tobias Masiak,

basically, you already got the necessary informations:

Error starting daemon: Devices cgroup isn't mounted

Pls. post the ouput of the commands:

plesk version
and
mount​

Pls. be aware, that docker can not be used on containers, only on physical servers and virtual machines with hardware emulation.

 

[Tobias Masiak]

Output of "plesk version":

Product version: Plesk Onyx 17.0.17 Update #20
Update date: 2017/03/26 04:16
Build date: 2016/11/17 16:00
OS version: CentOS 7.3.1611
Revision: ab6766191d3ba26e7b21255ab007fc7fc56d84c6
Architecture: 64-bit
Wrapper version: 1.2

Output of "mount":

/dev/vzfs on / type reiserfs (rw,usrquota,grpquota)
proc on /proc type proc (rw,relatime)
sysfs on /sys type sysfs (rw,relatime)
devtmpfs on /dev type devtmpfs (rw,nosuid,mode=755)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,nodev,mode=755)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,release_agent=/usr/lib/systemd/systemd-cgroups-agent,name=systemd)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio,name=beancounter)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)

If I am not wrong I am using a VServer, but the emulation should be activated.