docker on Amlogic builds

CGarces · October 3, 2016 at 7:17 PM

Hi!

Since 7.0 Beta 1 Docker is not available for AmLogic

The Docker add-on is not available for WeTeK Play/Core which use an older (too old) Linux kernel.

LibreELEC (Jarvis) v7.0 BETA1 – LibreELEC

What is needed exactly to get back the Docker addon?
It just a minor back-port that must be adapted to the AmLogic Kernels or is something more complicated?
All the AmLogic builds (Odroid C2/S805/S905) are affected?

**lrusak** · October 3, 2016 at 8:37 PM Official Post

kernel is too old, need at least kernel 3.18 implementation of overlayfs to be used with our docker add-on.

CGarces · October 3, 2016 at 10:03 PM

Quote from lrusak

kernel is too old, need at least kernel 3.18 implementation of overlayfs to be used with our docker add-on.

So is "just" back-port the overlayfs?

The code is available at
kernel/git/mszeredi/vfs.git - VFS stuff

There is some work done at
https://github.com/adilinden/overlayfs-patches

The same procedure can be used to patch the kernel 3.14.x?

**lrusak** · October 3, 2016 at 10:16 PM Official Post

Possibly, however, docker overlayfs support fails to load on kernels < linux 3.18-rc6 (eg. stock Ubuntu Trusty) even if overlayfs is present · Issue #10353 · moby/moby · GitHub

CGarces · October 3, 2016 at 10:38 PM

Quote from lrusak

Possibly, however, docker overlayfs support fails to load on kernels < linux 3.18-rc6 (eg. stock Ubuntu Trusty) even if overlayfs is present · Issue #10353 · moby/moby · GitHub

Ouch!

In any case, looks like the overlayfs is already added on hardkernel Odriod C2 kernel.

There a discussion about Volumio 2 and the back-port at:
ODROID Forum • View topic - Volumio 2

The specific commit with the kernel changes are at:
fs/overlayfs: add overlayfs support · hardkernel/linux@11e207c · GitHub

**lrusak** · October 3, 2016 at 10:43 PM Official Post

We don't use the hardkernel kernel version, we use our own. Besides that I already tried it with their backport and it didn't work

pawnthep · December 27, 2016 at 4:46 AM

Is there any hope about running docker on amlogic s905 (especially kszaq's build)?

**kszaq** · December 27, 2016 at 4:59 AM

Docker support for S905 devices (WeTek Hub, Odroid C2) has been added to LE master, I need to evaluate if it can be used in my S905 builds as well.

pawnthep · December 27, 2016 at 5:01 AM

Quote from kszaq

Docker support for S905 devices (WeTek Hub, Odroid C2) has been added to LE master, I need to evaluate if it can be used in my S905 builds as well.

Thanks for info. I hope it can!

**kszaq** · December 27, 2016 at 6:17 AM

pawnthep I have uploaded Docker addon for S905 Krypton builds - for the moment not tested at all. You can try using containers from libreelecarm

pawnthep · December 27, 2016 at 7:47 AM

Sorry if I'm mistaken. But how can I use these containers when there is no docker service to install on s905 Krypton repo, or is there?

Sent from my X900+ using Tapatalk

**kszaq** · December 27, 2016 at 10:02 AM

pawnthep Please read my previous post again.

Koxx · January 11, 2017 at 5:46 PM

Hi,
I am using "LibreELEC-S905.arm-7.0.3.012a.img".
I installed docker from addons.
With SSH :

Code

LibreELEC:~ # cd /storage/.kodi/addons/service.system.docker/bin
LibreELEC:~/.kodi/addons/service.system.docker/bin #
LibreELEC:~/.kodi/addons/service.system.docker/bin # docker pull libreelecarm/transmission
Using default tag: latest
Warning: failed to get default registry endpoint from daemon (Cannot connect to the Docker daemon. Is the docker daemon running on this host?). Using system default: https://index.docker.io/v1/
Cannot connect to the Docker daemon. Is the docker daemon running on this host?

why doesn't it work ?
[hr]
lol ... I think I missed the " Krypton " word
trying with LE 8
[hr]
crap ... I tried with "LibreELEC-S905.arm-8.0-devel-20161223194610-r25062-g308adcf.img"
same thing

**lrusak** · January 11, 2017 at 6:46 PM Official Post

sounds like the docker daemon isn't running.

check the output of

Code

docker version

and

Code

systemctl status service.system.docker

**kszaq** · January 11, 2017 at 7:12 PM

I think I'm missing some CGROUP kernel options in my builds. I will fix this for in next release.

Koxx · January 12, 2017 at 7:40 AM

exactly, cgroup kernel options

Code

Jan 12 07:39:21 LibreELEC dockerd[2923]: time="2017-01-12T07:39:21.439521919Z" level=warning msg="Unable to find cpuset cgroup in mounts"
Jan 12 07:39:21 LibreELEC dockerd[2923]: time="2017-01-12T07:39:21.439692377Z" level=warning msg="mountpoint for pids not found"
Jan 12 07:39:21 LibreELEC dockerd[2923]: time="2017-01-12T07:39:21.488875461Z" level=fatal msg="Error starting daemon: Devices cgroup isn't mounted"
Jan 12 07:39:21 LibreELEC systemd[1]: [[0;1;39mservice.system.docker.service: Main process exited, code=exited, status=1/FAILURE[[0m
Jan 12 07:39:21 LibreELEC systemd[1]: [[0;1;31mFailed to start Docker Application Container Engine.[[0m
Jan 12 07:39:21 LibreELEC systemd[1]: [[0;1;39mservice.system.docker.service: Unit entered failed state.[[0m
Jan 12 07:39:21 LibreELEC systemd[1]: [[0;1;39mservice.system.docker.service: Failed with result 'exit-code'.[[0m
Jan 12 07:39:21 LibreELEC systemd[1]: Starting Docker Application Container Engine...
Jan 12 07:39:21 LibreELEC dockerd[2947]: time="2017-01-12T07:39:21.763644961Z" level=info msg="libcontainerd: new containerd process, pid: 2954"
Jan 12 07:39:22 LibreELEC dockerd[2947]: time="2017-01-12T07:39:22.783153003Z" level=warning msg="Using pre-4.0.0 kernel for overlay2, mount failures may require kernel update"
Jan 12 07:39:22 LibreELEC dockerd[2947]: time="2017-01-12T07:39:22.812928836Z" level=info msg="Graph migration to content-addressability took 0.00 seconds"
Jan 12 07:39:22 LibreELEC dockerd[2947]: time="2017-01-12T07:39:22.813487045Z" level=warning msg="Your kernel does not support cgroup memory limit"
Jan 12 07:39:22 LibreELEC dockerd[2947]: time="2017-01-12T07:39:22.813634628Z" level=warning msg="Your kernel does not support cgroup cfs period"
Jan 12 07:39:22 LibreELEC dockerd[2947]: time="2017-01-12T07:39:22.813723211Z" level=warning msg="Your kernel does not support cgroup cfs quotas"
Jan 12 07:39:22 LibreELEC dockerd[2947]: time="2017-01-12T07:39:22.813791420Z" level=warning msg="Unable to find blkio cgroup in mounts"
Jan 12 07:39:22 LibreELEC dockerd[2947]: time="2017-01-12T07:39:22.813856711Z" level=warning msg="Unable to find cpuset cgroup in mounts"
Jan 12 07:39:22 LibreELEC dockerd[2947]: time="2017-01-12T07:39:22.814057628Z" level=warning msg="mountpoint for pids not found"
Jan 12 07:39:22 LibreELEC dockerd[2947]: time="2017-01-12T07:39:22.848906295Z" level=fatal msg="Error starting daemon: Devices cgroup isn't mounted"
Jan 12 07:39:22 LibreELEC systemd[1]: [[0;1;39mservice.system.docker.service: Main process exited, code=exited, status=1/FAILURE[[0m
Jan 12 07:39:22 LibreELEC systemd[1]: [[0;1;31mFailed to start Docker Application Container Engine.[[0m
Jan 12 07:39:22 LibreELEC systemd[1]: [[0;1;39mservice.system.docker.service: Unit entered failed state.[[0m
Jan 12 07:39:22 LibreELEC systemd[1]: [[0;1;39mservice.system.docker.service: Failed with result 'exit-code'.[[0m
Jan 12 07:39:22 LibreELEC systemd[1]: [[0;1;39mservice.system.docker.service: Start request repeated too quickly.[[0m
Jan 12 07:39:22 LibreELEC systemd[1]: [[0;1;31mFailed to start Docker Application Container Engine.[[0m
Jan 12 07:39:22 LibreELEC systemd[1]: [[0;1;39mservice.system.docker.socket: Unit entered failed state.[[0m
Jan 12 07:39:22 LibreELEC systemd[1]: [[0;1;39mservice.system.docker.service: Failed with result 'exit-code'.[[0m
Jan 12 07:39:22 LibreELEC kodi.sh[2684]: Exception in thread Thread-1:
Jan 12 07:39:22 LibreELEC kodi.sh[2684]: Traceback (most recent call last):
Jan 12 07:39:22 LibreELEC kodi.sh[2684]:   File "/usr/lib/python2.7/threading.py", line 801, in __bootstrap_inner
Jan 12 07:39:22 LibreELEC kodi.sh[2684]:   File "/storage/.kodi/addons/service.system.docker/default.py", line 270, in run
Jan 12 07:39:22 LibreELEC kodi.sh[2684]:     dockermon.watch(print_notification)
Jan 12 07:39:22 LibreELEC kodi.sh[2684]:   File "/storage/.kodi/addons/service.system.docker/lib/dockermon.py", line 84, in watch
Jan 12 07:39:22 LibreELEC kodi.sh[2684]:     header, payload = read_http_header(sock)
Jan 12 07:39:22 LibreELEC kodi.sh[2684]:   File "/storage/.kodi/addons/service.system.docker/lib/dockermon.py", line 36, in read_http_header
Jan 12 07:39:22 LibreELEC kodi.sh[2684]:     buf.append(sock.recv(bufsize).decode('utf-8'))
Jan 12 07:39:22 LibreELEC kodi.sh[2684]: error: [Errno 104] Connection reset by peer

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**kszaq** · January 12, 2017 at 7:41 AM

7.0.3.012c build available with fixed Docker support. It will also be fixed in a next Krypton build.

pawnthep · January 12, 2017 at 8:32 AM

Just installed 7.0.3.012c to try with docker service.

I can do "docker pull libreelecarm/transmission" successfully but how to enable/start transmission?

Code

# docker run libreelecarm/transmission container_linux.go:247: starting container process caused "process_linux.go:359: container init caused \"could not create session key: function not implemented\"" docker: Error response from daemon: invalid header field value "oci runtime error: container_linux.go:247: starting container process caused \"process_linux.go:359: container init caused \\\"could not create session key: function not implemented\\\"\"\n".

docker on Amlogic builds

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