Re: [atomic-devel] We have a bugzilla requesting that we change the default CMD to systemd for base images in RHEL

[Josh Berkus <jberkus redhat com>]

On 10/25/2016 12:14 PM, Josh Berkus wrote:
> On 10/25/2016 12:02 PM, Jeremy Eder wrote:
>> When you "docker pull golang", the image is over 600MB (and it's built
>> on alpine).
>> Same with docker pull java...also > 600MB.
>>
>> docker pull alpine is not apples:apples.  If you're pulling alpine it's
>> because you're about to shove in a ton of other stuff.
> 
> Yah, I'm less concerned about the exact size as I am with the dependency
> graph.  Currently systemd pulls in a LOT of random stuff, any of which
> requires various security updates.  There's also the effect on startup
> time for calling a container which is running a websocket-activated app,
> or a desktop app.

You know, though: if we're just changing the default CMD, and NOT what
we include in the base image, then it really doesn't break anything.
Everyone who builds a container overrides the default CMD.

-- 
--
Josh Berkus
Project Atomic
Red Hat OSAS