Open Stack

Another option:

1. Run a workflow with a loop (i.e. task calls itself), in order to have a delay between task executions you can use either wait-before/wait-after task policies
2.a The workflow can be stopped via Mistral API by a 3rd party, if needed.
2.b The workflow can have a special task that checks if it still needs to be running (i.e. making a request to a 3rd party), it can be done using conditional transitions


Renat Akhmerov
@Nokia

> On 23 Mar 2017, at 09:40, Lingxian Kong <anlin.kong at gmail.com> wrote:
> 
> Yeah, as Bob said, cron-trigger is what you are looking for.
> 
> As our discussion on IRC, currently, Mistral doesn't support to execute shell command directly, my suggestion is, you could consider using http action (which is supproted by Mistral out of the box) or providing a host (physical or virtual) to run 'ping' command and use ssh action in Mistral.
> 
> 
> Cheers,
> Lingxian Kong (Larry)
> 
> On Thu, Mar 23, 2017 at 1:16 PM, gongys2017 <gongys2017 at aliyun.com <mailto:gongys2017 at aliyun.com>> wrote:
> Hi mistral stackers,
> 
> Tacker is using the mistral as its part of system. Now we have a requirement:
> 
> tacker server registers an openstack as its NFVI, and needs to ping<or http-ping) the openstack's management IP,
> for example the keystone URL until tacker updates or delete the openstack NFVI.
> 
> Can the mistral be asked to start a workflow which  contains  just such a kind of task:
> for ever running until extenal tells him to stop.
> 
> 
> Thanks
> 
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