<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Another option:<div class=""><br class=""></div><div class="">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</div><div class="">2.a The workflow can be stopped via Mistral API by a 3rd party, if needed.</div><div class="">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</div><div class=""><br class=""></div><div class=""><br class=""><div class="">
<div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">Renat Akhmerov</div><div class="">@Nokia</div></div>
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<br class=""><div><blockquote type="cite" class=""><div class="">On 23 Mar 2017, at 09:40, Lingxian Kong <<a href="mailto:anlin.kong@gmail.com" class="">anlin.kong@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class=""><div class="gmail_default" style="font-family:tahoma,sans-serif">Yeah, as Bob said, cron-trigger is what you are looking for.</div><div class="gmail_default" style="font-family:tahoma,sans-serif"><br class=""></div><div class="gmail_default" style="font-family:tahoma,sans-serif">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.</div></div><div class="gmail_extra"><br clear="all" class=""><div class=""><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr" class=""><div class=""><div dir="ltr" class=""><div class=""><div dir="ltr" class=""><div class=""><font face="tahoma, sans-serif" class=""><br class="">Cheers,<br class="">Lingxian Kong (Larry)</font></div></div></div></div></div></div></div></div>
<br class=""><div class="gmail_quote">On Thu, Mar 23, 2017 at 1:16 PM, gongys2017 <span dir="ltr" class=""><<a href="mailto:gongys2017@aliyun.com" target="_blank" class="">gongys2017@aliyun.com</a>></span> wrote:<br class=""><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="m_-6495264606226733435__aliyun_email_body_block"><div style="clear:both" class=""><span style="font-family: Tahoma, Arial, STHeiti, SimSun; font-size: 14px;" class="">Hi mistral stackers,</span></div><div style="clear:both" class=""><span style="font-family: Tahoma, Arial, STHeiti, SimSun; font-size: 14px;" class=""><br class=""></span></div><div style="clear:both" class=""><span style="font-family: Tahoma, Arial, STHeiti, SimSun; font-size: 14px;" class="">Tacker is using the mistral as its part of system. Now we have a requirement:</span></div><div style="clear:both" class=""><span style="font-family: Tahoma, Arial, STHeiti, SimSun; font-size: 14px;" class=""><br class=""></span></div><div style="clear:both" class=""><span style="font-family: Tahoma, Arial, STHeiti, SimSun; font-size: 14px;" class="">tacker server registers an openstack as its NFVI, and needs to ping<or http-ping) the openstack's management IP,</span></div><div style="clear:both" class=""><span style="font-family: Tahoma, Arial, STHeiti, SimSun; font-size: 14px;" class="">for example the keystone URL until tacker updates or delete the openstack NFVI.</span></div><div style="clear:both" class=""><span style="font-family: Tahoma, Arial, STHeiti, SimSun; font-size: 14px;" class=""><br class=""></span></div><div style="clear:both" class=""><span style="font-family: Tahoma, Arial, STHeiti, SimSun; font-size: 14px;" class="">Can the mistral be asked to start a workflow which contains just such a kind of task:</span></div><div style="clear:both" class=""><span style="font-family: Tahoma, Arial, STHeiti, SimSun; font-size: 14px;" class="">for ever running until extenal tells him to stop.</span></div><div style="clear:both" class=""><span style="font-family: Tahoma, Arial, STHeiti, SimSun; font-size: 14px;" class=""><br class=""></span></div><div style="clear:both" class=""><span style="font-family: Tahoma, Arial, STHeiti, SimSun; font-size: 14px;" class=""><br class=""></span></div><div style="clear:both" class=""><span style="font-family: Tahoma, Arial, STHeiti, SimSun; font-size: 14px;" class="">Thanks<br class=""></span></div></div><br class="">______________________________<wbr class="">______________________________<wbr class="">______________<br class="">
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