To answer your other question about neutron: I use "quantum_floating_ip" to assign IPs on Openstack.
It would be very useful if these API calls could also be parallelized. I imagine a lot more time would be spent on 100 serial API calls than doing them in parallel. -Kurt On Monday, July 14, 2014 10:16:13 AM UTC-4, Kurt Yoder wrote: > > There's an undocumented min_count and max_count option in > python-novaclient ServerManager.create() which looks like what you want [1]. > > -Kurt > > > [1] > https://github.com/openstack/python-novaclient/blob/cc7364067f995bd952149cd172cebf083fe4dc99/novaclient/v3/servers.py#L427 > > > On Friday, July 11, 2014 9:50:10 PM UTC-4, Michael DeHaan wrote: >> >> "So should I make a custom module which loops over nova_compute >> asynchronously, and also assigns floating IPs?" >> >> I'd first rather know where the openstack API allows simultaneous >> creation of N virtual machines of the same image type. >> >> I expect the floating IP stuff is fast and a usual with_items loop isn't >> a problem there, once those guests exist. >> >> (Using neutron, I assume?) >> >> >> On Fri, Jul 11, 2014 at 6:54 PM, Kurt Yoder <[email protected]> >> wrote: >> >>> So should I make a custom module which loops over nova_compute >>> asynchronously, and also assigns floating IPs? >>> >>> Would such a module be useful to the wider community, or is it too >>> specialized to contribute back? >>> >>> On Friday, July 11, 2014 6:34:47 PM UTC-4, Michael DeHaan wrote: >>> >>>> So some of the provisioning modules, like AWS in particular, support >>>> spinning up "N" modules at a time by passing "count" or "exact_count". >>>> >>>> Rackspace I believe does this with manual looping (for now), but I >>>> could be wrong and that might have just been historical truth. >>>> >>>> If the OpenStack API says we can launch 10 at once, it could be made to >>>> do similar things. >>>> >>>> >>>> >>>> >>>> On Fri, Jul 11, 2014 at 5:28 PM, Kurt Yoder <[email protected]> >>>> wrote: >>>> >>>>> I guess that error is because I put a "with_items" in there. >>>>> >>>>> How does everyone else do this? I don't understand how to loop >>>>> asynchronously. See pseudo-code: >>>>> >>>>> < start all 5 at once: > >>>>> < start up openstack host > >>>>> < assign it a floating ip > >>>>> < capture the floating ip > >>>>> < end when all 5 have a floating ip > >>>>> < wait for all 5 floating IPs to have an open SSH port > >>>>> >>>>> On Friday, July 11, 2014 5:20:34 PM UTC-4, Kurt Yoder wrote: >>>>>> >>>>>> Well, "async" is totally a bust. I got a message: >>>>>> >>>>>> fatal: [localhost] => lookup plugins (with_*) cannot be used with >>>>>> async tasks >>>>>> >>>>>> >>>>>> >>>>>> On Thursday, July 10, 2014 6:17:48 PM UTC-4, Kurt Yoder wrote: >>>>>>> >>>>>>> Hello list, >>>>>>> >>>>>>> I anticipate provisioning 10-20 VMs using Ansible, then assigning >>>>>>> floating IPs to each, then waiting for SSH to become available for each >>>>>>> VM. >>>>>>> I would like to do this in parallel instead of serially. Specifically: >>>>>>> >>>>>>> >>>>>>> - Start the VMs, but don't block >>>>>>> - Assign the IPs, but don't block >>>>>>> - Wait on SSH until all VMs respond >>>>>>> >>>>>>> >>>>>>> I saw the nova_compute "wait: 'no'" option, but when I use it I get >>>>>>> a stack trace: >>>>>>> >>>>>>> failed: [localhost] => (item=1) => {"failed": true, "item": 1, >>>>>>>> "parsed": false} >>>>>>>> invalid output was: Traceback (most recent call last): >>>>>>>> File >>>>>>>> "/home/ubuntu/.ansible/tmp/ansible-tmp-1405028178.0-234314980043958/nova_compute", >>>>>>>> >>>>>>>> line 1490, in <module> >>>>>>>> main() >>>>>>>> File >>>>>>>> "/home/ubuntu/.ansible/tmp/ansible-tmp-1405028178.0-234314980043958/nova_compute", >>>>>>>> >>>>>>>> line 266, in main >>>>>>>> _create_server(module, nova) >>>>>>>> File >>>>>>>> "/home/ubuntu/.ansible/tmp/ansible-tmp-1405028178.0-234314980043958/nova_compute", >>>>>>>> >>>>>>>> line 194, in _create_server >>>>>>>> private = [ x['addr'] for x in getattr(server, >>>>>>>> 'addresses').itervalues().next() if x['OS-EXT-IPS:type'] == >>>>>>>> 'fixed'] >>>>>>>> StopIteration >>>>>>>> >>>>>>> >>>>>>> Perhaps I'm using it incorrectly: >>>>>>> >>>>>>> - name: Launch cluster VM on Openstack >>>>>>>> nova_compute: >>>>>>>> name: "{{ os_username }}_cluster1" >>>>>>>> state: present >>>>>>>> login_username: "{{ os_username }}" >>>>>>>> login_tenant_name: "{{ os_tenant }}" >>>>>>>> login_password: "{{ os_password }}" >>>>>>>> image_id: "{{ os_image_id }}" >>>>>>>> key_name: "{{ os_username }}_controller_key" >>>>>>>> wait: "no" >>>>>>>> flavor_id: "{{ os_flavor_id }}" >>>>>>>> auth_url: "{{ os_url }}" >>>>>>>> user_data: "#cloud-config\nmanage_etc_hosts: true" >>>>>>>> >>>>>>> >>>>>>> >>>>>>> So, two questions: >>>>>>> >>>>>>> >>>>>>> 1. Am I using "wait" correctly? >>>>>>> 2. Should I use "wait" to get to my desired parallel VM launch, >>>>>>> as described above, or should I use something else, e.g. "async"? >>>>>>> >>>>>>> >>>>>>> Thanks, >>>>>>> >>>>>>> -Kurt >>>>>>> >>>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "Ansible Project" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to [email protected]. >>>>> To post to this group, send email to [email protected]. >>>>> To view this discussion on the web visit https://groups.google.com/d/ >>>>> msgid/ansible-project/32b58cdf-17cd-42c9-8ef6- >>>>> dc90327e989a%40googlegroups.com >>>>> <https://groups.google.com/d/msgid/ansible-project/32b58cdf-17cd-42c9-8ef6-dc90327e989a%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>> . >>>>> >>>>> For more options, visit https://groups.google.com/d/optout. >>>>> >>>> >>>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Ansible Project" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> To post to this group, send email to [email protected]. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/ansible-project/2326c06a-dec5-43b2-bd22-bb6856d14227%40googlegroups.com >>> >>> <https://groups.google.com/d/msgid/ansible-project/2326c06a-dec5-43b2-bd22-bb6856d14227%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- You received this message because you are subscribed to the Google Groups "Ansible Project" group. 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