[colug-432] Docker discussion

[Tom Hanlon]

I think the more interesting piece abut docker rather than docker
itself is the new possibilities enabled by containers, cgroups,
systemd or whatever all goes together to allow docker to work.

I am aware of some of the moving, parts. I know Solaris Zones were a
good thing, I understand some of the cgroup container stuff is similar
and that the kernel has somehow been enabled to do all this in recent
versions.

The Hadoop scheduler Yarn for example uses cgroups, I think the
cluster system Mesos does as well.

I work with docker based solutions and I find a lack of stability in
the deployment, but that might not be due to docker.

I have worked as a trainer for 10 years , MySQL, apache, XML, Hadoop
and I see a huge opportunity for someone to talk the docker company
into delivering training I think there is a market to be trained.

So yes I am interested in the guts of what enables docker, but not so
much docker itself.

If someone gave a presentation on cgroups, and systemd and all that so
I could learn more that would be more interesting to me than writing a
dockerfile.

--
Tom

On Thu, Oct 16, 2014 at 12:00 AM, Jim Wildman <jim at rossberry.com> wrote:
> At the day job as a Solution Architect for Red Hat, I visit a lot of
> customers.  My fellow SA's and I joke that Docker is the most likely
> reason that we will be stopped in the hallway before we get to our meeting
> or after we leave.  This despite the fact that Docker is only useful if
> you have very specific use cases and some pretty top notch Linux talent
> to implement it.
>
> IMO...  MS has a big problem in that it is hard to run MS based
> applications on the cloud infrastructures like AWS and OpenStack (not
> impossible, just challenging).  Azure has gotten traction in Windows
> shops, but I don't know of anyone other than MS that is hosting a Hyper-V
> based cloud.  There is no "on premise, customer owned" option for Azure
> that I know of.
>
> Annnnddd..  people forget that Windows Server and MS Office are
> very symbiotic.  One can't really survive without the other.  So what
> happens as the world moves from client/server to cloud/mobile and MS
> has <5% market share in mobile devices???  And they don't have a viable
> horizontally scaleable cloud, ala AWS?
>
> I see this as an (good) defensive move from MS to try to head off the
> bleeding.  Will be interesting to see if it works, how they handle MSSQL
> pricing, CAL's, etc, etc, etc.
>
> Will gladly talk about this Thursday as well.
>
> On Wed, 15 Oct 2014, Angelo McComis wrote:
>
>> Hey COLUG -
>>
>> I'm less of a hands-on guy these days, but I do try to stay on top of the
>> industry.
>>
>> So - Docker... I did a mail search to see how often it comes up in
>> discussion here, and the answer was - some, but not too much.
>>
>> I'm wondering the group's take on the announcement today that M$ is going
>> to start supporting Docker on "that other" platform.
>>
>> Will that spur more interest in Docker and other container-like deployment
>> methods?
>>
>> Also, if you've tried Docker and not embraced it with a great big bear hug,
>> why not? Is it about how it fits into the existing development methods?
>> Is it challenging to get this adopted across infrastructure support teams? Other challenges/reasons?
>>
>>
>>
>>
>
> ----------------------------------------------------------------------
> Jim Wildman, CISSP, RHCE       jim at rossberry.com http://www.rossberry.net
> "Society in every state is a blessing, but Government, even in its best
> state, is a necessary evil; in its worst state, an intolerable one."
> Thomas Paine
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