[ale] Containers... use?

[Raj Wurttemberg]

What kind of applications do you run in your docker containers?  I was
thinking about using them for web/application servers.  Some of my clients
use NFS mounts.  I have looked into using persistent NFS storage. The NFS
exports are IP-restricted to the individual systems so static IPs are a
must as well.  It would be cool to have a customer’s web server front-end
scale as the workload increased or decreased.



/Raj



On Sat, Sep 16, 2017 at 8:54 AM, Jeff Layton <laytonjb at att.net> wrote:

> I use containers all the time for the day job and I use them a little at
> home. The day job is mostly Docker. It's really great and easy to use but
> the root access issue still bugs me.
>
> I also use Singularity and it's great! Easy to install, use, and make
> containers. I use a little at work but more so at home. It allows me to
> create a container for some applications and then move them around my
> systems as needed.
>
> YMMV.
>
> Jeff
>
>
>
> On Saturday, September 16, 2017 5:18 AM, DJ-Pfulio <DJPfulio at jdpfu.com>
> wrote:
>
>
> On 09/15/2017 10:30 PM, Raj Wurttemberg wrote:
> >
> >
> > Are any of you using containers for anything? Most of my customers are
> > SAP HANA (2 to 4TB of RAM and 20 to 60 CPU cores). The technology looks
> > cool... I just can't find a use for it.
>
> I use cgroups, namespaces, and chroots all the time. Daily.  Constantly.
> Right now.  I've only played with docker.
>
> They are single use processes. No shells. No sshd.  No patching.
> Limited access to most of the hostOS file system.
>
> Is that a "container"?
>
> I would use containers for internal software development and deployment.
> I'm not ready to place them on the internet at this point. If I allowed
> php webapps to be internet facing, I'd run each of them in a container
> with nothing else, so WHEN they are hacked, there isn't enough of an OS
> there to have a shell, no editor, and do anything except run the webapp.
>
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