On 05/28/2016 09:35 PM, jjs - mainphrame wrote:
Thanks for the guidelines - I see some encouraging initial results
with docker inside a centos 7 CT:
Good to know, thank you for sharing!
[root@vz105 ~]# docker run hello-world
Unable to find image 'hello-world:latest' locally
Trying to pull repository docker.io/library/hello-world ... latest:
Pulling from library/hello-world
79112a2b2613: Pull complete
4c4abd6d4278: Pull complete
Digest: sha256:4f32210e234b4ad5cac92efacc0a3d602b02476c754f13d517e1ada048e5a8ba
Status: Downloaded newer image for docker.io/hello-world:latest
Hello from Docker.
This message shows that your installation appears to be working correctly.
To generate this message, Docker took the following steps:
1. The Docker client contacted the Docker daemon.
2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
3. The Docker daemon created a new container from that image which runs the
executable that produces the output you are currently reading.
4. The Docker daemon streamed that output to the Docker client, which sent it
to your terminal.
To try something more ambitious, you can run an Ubuntu container with:
$ docker run -it ubuntu bash
Share images, automate workflows, and more with a free Docker Hub account:
https://hub.docker.com
For more examples and ideas, visit:
https://docs.docker.com/engine/userguide/
[root@vz105 ~]#
On Fri, May 27, 2016 at 1:41 AM, Konstantin Khorenko
<khore...@virtuozzo.com> wrote:
Hi Jake,
when trying Docker Containers inside Virtuozzo 7 Containers, please make
sure you have
kernel 3.10.0-327.18.2.vz7.14.7 or later.
And if there are any issues with Docker application template, please let us
know,
but in fact it's enough to:
* load "veth", "overlay" kernel modules on the host
* enable full netfilters for the VZ 7 CT (to be run on a stopped Container):
# prlctl set $CTID --netfilter=full
And after that install and use Docker inside a VZ7 CT like it's done on any
full OS without Docker application template installation.
--
Best regards,
Konstantin Khorenko,
Virtuozzo Linux Kernel Team
On 05/27/2016 08:02 AM, jjs - mainphrame wrote:
Thanks Denis,
I'll check this out very soon -
Jake
On Thu, May 26, 2016 at 8:00 AM, Denis Silakov <dsila...@virtuozzo.com>
wrote:
You can try to create container from centos-7-x86_64 template and then
install docker app template there:
# vzctl create 111 --ostemplate centos-7-x86_64
# vzctl start 111
# vzpkg install 111 docker
It can require some preparations though; pre-install script checks them
and
refuses to proceed if anything is wrong. Currently it checks that
"bridge:on" feature is set and netfilter is set to "full"
(https://src.openvz.org/projects/OVZT/repos/centos-7-x86_64-ez/browse/docker_pre-install-hn#42).
On 05/25/2016 03:27 AM, jjs - mainphrame wrote:
Greetings,
Just a quick question - I've been reading that it's possible to spin
up docker apps inside OVZ 7 containers - are there any particular
preparations or workarounds required, in the way of differences from a
docker install on a full OS?
Disclaimer - I haven't done anything with docker, but I'm curious to
see how useful it might be, and in particular, how well it works
inside a Linux container.
Jake
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