Re: [atomic-devel] Install Atomic "at runtime" on CentOS

Hi Joe,

Thanks for getting back to me.

I'm in an environment where I can't choose images of my choice, the only [relevant] ones I have available are CentOS 6 & 7 and RHEL 6 & 7.

I know that Red Hat developed kpatch; which enables hot-patching of a running kernel.

With CoreOS's FastPatch I just need to join a non CoreOS host to a CoreOS cluster (it's easy to join etcd, then fleet follows via systemd [DBUS]).

How would I go about setting up something similar with Project Atomic's ecosystem?

Happy to contribute some elbow-grease!

Alec Taylor

On Thu, Jul 16, 2015 at 9:51 PM, Joe Brockmeier <jzb redhat com> wrote:

On 07/15/2015 08:52 PM, Alec Taylor wrote:
>
> Can I just patch the kernel and install a bunch of software once I've
> logged into the CentOS host?
>
> Or is it not possible to get Atomic that way?

I'm assuming by "atomic" you mean all the features including rpm-ostree
updates, etc.?

No - this isn't something you can install on a running CentOS host.
You'd need to install an atomic build from the start.

What's your scenario here? Are you being provided hosts from another
department and just unable to use the images of your choice, or...?

Best,

jzb
--
Joe Brockmeier | Community Team, OSAS
jzb redhat com | http://community.redhat.com/
Twitter: @jzb | http://dissociatedpress.net/