Open Stack

Robert Collins <robertc at robertcollins.net> wrote on 09/29/2013 02:21:28 
AM:

> Host not hypervisor I think; consider nova baremetal, where hypervisor
> == machine that runs tftpd and makes IPMI calls, and host == place
> where the user workload will execute.

In nova baremetal, is there still a "hypervisor" in the picture, and is it 
necessarily the same machine as the "host"?

Another reason to prefer host is that we have other resources to locate 
besides compute.

But the current API maps a host to a list of uniformly-shaped contents, it 
is not obvious to me what would be a good way to extend this.  Any ideas? 
Following is an example, it is the result of a GET on 
http://novahost:port/v2/tennantid/os-hosts/hostname


1.      {
2.          "host":
3.          [
4.              {
5.                  "resource":
6.                  {
7.                      "project": "(total)",
8.                      "memory_mb": 96661,
9.                      "host": "x3630r7n8",
10.                     "cpu": 32,
11.                     "disk_gb": 2216
12.                 }
13.             },
14.             {
15.                 "resource":
16.                 {
17.                     "project": "(used_now)",
18.                     "memory_mb": 70144,
19.                     "host": "x3630r7n8",
20.                     "cpu": 34,
21.                     "disk_gb": 880
22.                 }
23.             },
24.             {
25.                 "resource":
26.                 {
27.                     "project": "(used_max)",
28.                     "memory_mb": 69632,
29.                     "host": "x3630r7n8",
30.                     "cpu": 34,
31.                     "disk_gb": 880
32.                 }
33.             },
34.             {
35.                 "resource":
36.                 {
37.                     "project": "5e5e2b0da114499b838c8d24c31bea08",
38.                     "memory_mb": 69632,
39.                     "host": "x3630r7n8",
40.                     "cpu": 34,
41.                     "disk_gb": 880
42.                 }
43.             }
44.         ]
45.     }
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