Amazon linux

[cheesefactory]

• Adds support for Amazon Linux

[tduffield]

So I took a look at your code and it looks good. I'm currently working on writing some tests for it but I did notice that when trying to pull down the docker-test-image, docker on amazon threw an error about our storage driver, specifically:

[root@ip-10-122-165-142 ec2-user]# docker pull docker-test-image
Pulling repository docker-test-image
83599e29c455: Error pulling image (latest) from docker-test-image, Driver devicemapper failed to create image rootfs 83599e29c455eb719f77d799bc7c51521b9551972f5a850d7ad265bc1b5292f6: hash 83599e29c455eb719f77d799bc7c51521b9551972f5a850d7a2014/05/02 16:23:07 Could not find repository on any of the indexed registries.

The issue is that the docker-test-image was created with AUFS while Docker running on Amazon Linux is using devicemapper. There are two/three potential solutions: 1) ignore the problem and pull down an image built with devicemapper; 2) install aufs as part of the recipe or 3) print a computability message in the Chef Log warning about potential rootfs incompatibilities. My personal preference is a combination of 1 and 3 and the one I am going with in my solution since having a way to detect whether or not we are running on aufs or devicemapper automatically would be a huge win.

[jayofdoom]

That should /not/ be a problem. Docker containers are intended to be agnostic of what driver they're used with. They aren't even stickied to what docker version created them.

[tduffield]

@jayofdoom That would be the sane thing. Regardless, there is still an issue with the installation and it has to do with the storage driver. If its not AUFS vs devicemapper then its something else. :/

[root@ip-10-122-165-142 ec2-user]# docker pull busybox
Pulling repository busybox
2d8e5b282c81: Error pulling image (latest) from busybox, Driver devicemapper failed to create image rootfs 511136ea3c5a64f264b78b5433614aec563103b4d4702f3ba7d4d2698e22c158: mkdir /var/lib/docker/devicemapper/mnt/511136ea3c5a64f264b78b5433614aec563103b4d4702f3ba7d4d2698e22c158/rootfs: input/output error 2f3ba7d4d2698e22c158/rootfs: input/output error
2014/05/02 16:42:14 Could not find repository on any of the indexed registries.

[tduffield]

I think I found the issue. On Amazon we should not be using the 'docker-io' package from yum-EPEL. If we use the package that comes from AWS' repo it works. Testing now.

[cheesefactory]

Doh! Thanks @tduffield

[cheesefactory]

@tduffield How are you testing the addition of Amazon Linux? I wanted to add an entry to kitchen.yml but I couldn't find a Vagrant box for the OS..

[tduffield]

@cheesefactory I'm using the vagrant-ec2 plugin and launching boxes in EC2.

[tduffield]

@cheesefactory sorry, i meant kitchen-ec2

[bflad]

Please let me know if either of you can get the non-EPEL installation worked out so we can merge in the Amazon support. I'll hold off from doing anything here until then. Thanks!

[bflad]

I'll go ahead and merge to finish this up for release in 0.35.0.

[tduffield]

This really shouldn't have been merged - the EPEL version doesn't work on Amazon Linux :/

[cheesefactory]

Tend to agree.... Also - in the most recent release of Amazon Linux I believe docker will be installed by default (to support their Beanstalk Docker stuff).

I'm not sure what sort of implication (if any) that has on managing docker installs via this cookbook. Thoughts?

Also, sorry I've been a bit absent in this PR..

[tduffield]

There shouldn't be an implication since Chef will only install Docker if it
is not already installed. As long as we use the amazon repo it should all
work out.

On Wed, May 7, 2014 at 9:39 AM, David John notifications@github.com wrote:

Tend to agree.... Also - in the most recent release of Amazon Linux I
believe docker will be installed by default (to support their Beanstalk
Docker stuff).

I'm not sure what sort of implication (if any) that has on managing docker
installs via this cookbook. Thoughts?

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Reply to this email directly or view it on GitHubhttps://github.com//pull/144#issuecomment-42435175
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[bflad]

Sorry for the confusion. I merged this in and fixed it locally. I just need
to push up the changes I made last night.

Brian Flad
Sent from mobile
On May 7, 2014 7:53 AM, "Tom Duffield" notifications@github.com wrote:

There shouldn't be an implication since Chef will only install Docker if
it
is not already installed. As long as we use the amazon repo it should all
work out.

On Wed, May 7, 2014 at 9:39 AM, David John notifications@github.com
wrote:

Tend to agree.... Also - in the most recent release of Amazon Linux I
believe docker will be installed by default (to support their Beanstalk
Docker stuff).

I'm not sure what sort of implication (if any) that has on managing
docker
installs via this cookbook. Thoughts?

—
Reply to this email directly or view it on GitHub<
https://github.com/bflad/chef-docker/pull/144#issuecomment-42435175>
.

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Reply to this email directly or view it on GitHubhttps://github.com//pull/144#issuecomment-42437096
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