display the current task value in the status option

[f2brossi]

It would be useful to display in the status option, the task value of the instance :

RUNNING
SUSPENDING
RESUMING
SPAWNING
NONE

This feature is interesting especially for transition tasks that take time like SUSPENDING, RESUMING.

[f2brossi]

For doing that we need the nova API v2.1 http://developer.openstack.org/api-ref-compute-v2.1.html

Especially the end point /v2.1/servers/details that return notably :
"os-extended-status:locked_by": null,
"os-extended-status:power_state": 1,
"os-extended-status:task_state": null,
"os-extended-status:vm_state": "active",
"progress": 0,owever we
"status": "ACTIVE",
"tenant_id": "openstack",
"updated": "2013-09-16T03:07:10Z",
"user_id": "fake"
The V2.1 API is experimental and not enabled by default in Juno.

However we could check that the endpoint exist and if yes display the information. Feature

[f2brossi]

Also already available in api v2 extensions http://developer.openstack.org/api-ref-compute-v2-ext.html

with endpoint get /v2/​{tenant_id}​/servers/detail

In fact, v2.1 is the same as v2 extensions without xml support and with strong input validation with jsonshema. http://chris.yeoh.info/2014/09/09/nova-v2-1-api/

I will check that.

[f2brossi]

I have just tested on my cloud provider the following command :
get {{novaUrl}}/{{tenant_id}}/servers/detail

I can confirm that we have the transition task_state in the response
For sample, OS-EXT-STS:task_state: "suspending"

So when task_state is not null we can
1° display this information in status option
2° And also preventing from resuming a vm suspending

[f2brossi]

So after a > vagrant suspend

vagrant status
Current machine states:
default State: active - Task: suspending (openstack)

then
Current machine states:
default State: suspended - Task: none (openstack)

And then :
Current machine states:
default State: suspended - Task: resuming (openstack)

And finally
Current machine states:
default State: active - Task: none (openstack)

NB: All tasks transition states are defined here https://github.com/openstack/nova/blob/master/nova/compute/task_states.py

[julienvey]

Work in progress by @f2brossi here #157