[openstack-dev] [TripleO] [Tuskar] Terminology Revival #1 - Roles
tzumainn at redhat.com
Wed Jan 22 15:47:29 UTC 2014
> On Jan 22, 2014, at 7:09 AM, Jaromir Coufal <jcoufal at redhat.com> wrote:
> > On 2014/22/01 10:00, Jaromir Coufal wrote:
> >> On 2014/22/01 00:56, Tzu-Mainn Chen wrote:
> >>> Hiya - Resource is actually a Heat term that corresponds to what we're
> >>> deploying within
> >>> the Overcloud Stack - i.e., if we specify that we want an Overcloud
> >>> with 1 Controller
> >>> and 3 Compute, Heat will create a Stack that contains 1 Controller and
> >>> 3 Compute
> >>> Resources.
> >> Then a quick question - why do we design deployment by
> >> increasing/decreasing number of *instances* instead of resources?
> >> -- Jarda
> > And one more thing - Resource is very broad term as well as Role is. The
> > only difference is that Heat accepted 'Resource' as specific term for them
> > (you see? they used broad term for their concept). So I am asking myself,
> > where is difference between generic term Resource and Role? Why cannot we
> > accept Roles? It's short, well describing...
> > I am leaning towards Role. We can be more specific with adding some extra
> > word, e.g.:
> > * Node Role
> +1 to Node Role. I agree that “role” is being used as a generic term here.
> I’m still convinced it’s important to use “Node” in the name since this is
> the item we are describing by assigning it a certain type of role.
I'm *strongly* against Node Role. In Ironic, a Node has no explicit Role assigned
to it; whatever Role it has is implicit through the Instance running on it
(which maps to a Heat Resource).
In that sense, we're not really monitoring Nodes; we're monitoring Resources, and
a Node "just happens" to be one attribute of a Resource.
> > * Deployment Role
> > ... and if we are in the context of undercloud, people can shorten it to
> > just Roles. But 'Resource Category' seems to me that it doesn't solve
> > anything.
> > -- Jarda
> > _______________________________________________
> > OpenStack-dev mailing list
> > OpenStack-dev at lists.openstack.org
> > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
> OpenStack-dev mailing list
> OpenStack-dev at lists.openstack.org
More information about the OpenStack-dev