Guillaume,
I have exactly the same problem with setting up OSD via ADM host and I was
pulling my hair for 2 days.
I don't know how to thank you:)
On Wednesday, December 11, 2013 at 3:24:37 PM UTC+1, Guillaume Subiron
wrote:
>
> After reading nested.py and realizing it would never do what I wanted,
> I found a workaround.
>
> On each ceph-ODSs :
>
> - delegate_to: "{{ ceph-admin }}"
> shell: echo {{ inventory_hostname }}-{{ item }}
> with_items: disks
>
>
>
> Anyway, thank you very much for your help :)
>
>
> Le 13/12/11 14:53, Guillaume Subiron claviotta :
> > Hum, this is not what I'm looking for, because my action is not
> > executed on the ceph-OSDs, but on another host (a centralized admin
> > node).
> > In this playbook, I'm not doing anything on the ceph-OSDs.
> >
> > What I need to do (only on my admin node) is :
> >
> > - shell: echo {{ item.0 }}-{{ item.1 }}
> > with_nested:
> > - groups['ceph-OSDs']
> > - the disks of the current item in the "groups['ceph-OSDs']" loop
> >
> > I want it to print (on the admin host) :
> >
> > osd0-sdb
> > osd1-sdb
> > osd1-sdc
> >
> > Do you understand the problem ? I don't see any workaround. This is a
> > matter of syntax.
> >
> >
> > Le 13/12/11 08:24, Michael DeHaan claviotta :
> > > I think you probably want this:
> > >
> > > - shell: echo {{ item.0 }}-{{item.1 }}
> > > with_together:
> > > - groups['ceph-OSDs']
> > > - disks
> > >
> > > this will print for the first host
> > >
> > > osd0-sdb
> > > osd1-sdb
> > >
> > > and for the second host
> > >
> > > osd0-sdb
> > > osd0-sdc
> > > osd1-sdb
> > > osd1-sdc
> > >
> > > Let me know if that works for you and if I'm missing something we'll
> figure
> > > it out.
> > >
> > > Thanks!
> > >
> > >
> > >
> > >
> > >
> > > On Wed, Dec 11, 2013 at 8:21 AM, Guillaume Subiron <[email protected]
> <javascript:>>wrote:
> > >
> > > > Le 13/12/11 08:05, Michael DeHaan claviotta :
> > > > > Before we dive into a technical solution let me understand your
> use case
> > > > > and what you are modelling a bit better.
> > > > >
> > > > > So groups['ceph-ODSs'] would be all machines in the ceph-ODSs
> group.
> > > >
> > > > That's right.
> > > >
> > > > >
> > > > > I'd probably just define a variable like "disks" on the group, but
> I'm
> > > > > unclear why that wouldn't work in your case.
> > > > >
> > > > > I could probably understand more if I could see how "disks"
> differs
> > > > between
> > > > > hosts.
> > > >
> > > > It's simple, my Ceph OSD (storage nodes) are all différents. Some
> > > > contains 2 hard drives (sdb, sdc), some contains 10 (sdb, sdc,
> sdd…).
> > > > "disks" is a list of hard drives, which is different from one host
> to
> > > > another. ex:
> > > >
> > > > inventory
> > > >
> > > > osd0
> > > > osd1
> > > >
> > > > [ceph-OSDs]
> > > > osd0
> > > > osd1
> > > >
> > > > host_vars/osd0
> > > >
> > > > disks:
> > > > - sdb
> > > >
> > > > host_vars/osd1
> > > >
> > > > disks:
> > > > - sdb
> > > > - sdc
> > > >
> > > > In my nested loop, I need to loop over the Ceph Storage nodes and
> > > > their hard drive. The hard drive list is an host variable
> (accessible
> > > > by hostvars[osd0]['disks'], for instance).
> > > >
> > > > With the example above, I want my playbook to do :
> > > >
> > > > ceph_deploy osd prepare osd0:sda
> > > > ceph_deploy osd prepare osd1:sda
> > > > ceph_deploy osd prepare osd1:sdb
> > > >
> > > > > > > On 11 December 2013 09:53, Guillaume Subiron <
> [email protected] <javascript:>>
> > > > > > wrote:
> > > > > > >
> > > > > > > > Hi,
> > > > > > > >
> > > > > > > > I'm trying to do a special kind of nesting loop, using the
> item of
> > > > the
> > > > > > > > first loop in the second loop:
> > > > > > > >
> > > > > > > > - name: Prepare OSDs
> > > > > > > > shell: ceph-deploy osd prepare {{ item[0] }}:{{ item[1] }}
> > > > > > > > with_nested:
> > > > > > > > - groups['ceph-ODSs']
> > > > > > > > - hostvars[item[0]]['disks']
> > > > > > > >
> > > > > > > > I'm not sure if this is possible, but I can't find any
> workaround.
> > > > > > > >
> > > >
> > > > --
> > > > Guillaume Subiron
> > > > Mail - [email protected] <javascript:>
> > > > GPG - C7C4 455C
> > > > Jabber - [email protected] <javascript:>
> > > > IRC - maethor@(freenode|geeknode)
> > > >
> > > > --
> > > > You received this message because you are subscribed to the Google
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> > > > email to [email protected] <javascript:>.
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> > > >
> > >
> > >
> > >
> > > --
> > > Michael DeHaan <[email protected] <javascript:>>
> > > CTO, AnsibleWorks, Inc.
> > > http://www.ansibleworks.com/
> > >
> > > --
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> >
> > --
> > Guillaume Subiron
> > Mail - [email protected] <javascript:>
> > GPG - C7C4 455C
> > Jabber - [email protected] <javascript:>
> > IRC - maethor@(freenode|geeknode)
> >
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>
> --
> Guillaume Subiron
> Mail - [email protected] <javascript:>
> GPG - C7C4 455C
> Jabber - [email protected] <javascript:>
> IRC - maethor@(freenode|geeknode)
>
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