Confined Docker snap available

[Peng Liu]

Hi Loïc,

I encountered some errors when I tried to connect the interfaces, for
example:
========================================================
sudo snap connect docker:docker-cli docker:docker-daemon

error: cannot perform the following tasks: - Connect docker:docker-cli to
docker:docker-daemon (cannot connect plug "docker-cli" from snap "docker",
no such plug) ========================================================

Then I am not able to run a simple docker command like "docker run --rm
hello-world"

Did I miss something? Is there anything need to do after installing the
docker snap?
Thanks.

Peng

On Tue, Oct 18, 2016 at 6:48 AM, Loïc Minier <loic.minier at ubuntu.com> wrote:

> Hi!
>
> Docker is since some days available as a properly confined snap. This will
> work on top of classic Ubuntu 16.04+ or on top of an up-to-date Ubuntu Core
> series 16.
>
> Because the docker.sock path is hardcoded in a lot of images, this snap
> conflicts with docker debs, so make sure you remove them first:
> sudo apt purge docker docker-engine
>
> Create a system group for docker:
> sudo groupadd --system docker
>
> Install the snap:
> sudo snap install docker
>
> And connect the interfaces (these will go away we have a snap-declaration
> in place):
> sudo snap connect docker:docker-cli docker:docker-daemon
> sudo snap connect docker:firewall-control ubuntu-core:firewall-control
> sudo snap connect docker:support ubuntu-core:docker-support
> sudo service snap.docker.dockerd stop
> sudo service snap.docker.dockerd start
>
> You're now ready to use docker, e.g.:
> sudo /snap/bin/docker run --rm -it hello-world
> sudo /snap/bin/docker run --rm -it ubuntu
>
> At the moment, the Docker snap is available for amd64, armhf, arm64, i386.
>
> Docker-compose is also included, and may be used with the "docker.compose"
> command.
>
> Want to read more about docker? Read the Docker snap status and FAQ doc
> <https://docs.google.com/document/d/1JHa6tkuR9PtpnAVVmAJIAKuyKBy8E9ZkvG5Wbc6HZSY/edit?usp=sharing>
> !
>
> Have fun and please report issues against https://github.com/
> docker-snap/docker
>
> Cheers,
> - Loïc Minier
>
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