Re: [ansible-project] with_items and array concatenation?
The first problem here is not about sets or unions or anything. The issue is with_items wants a single list to walk over, not a list of two lists. So with_items: variable_ame works as does with_items: - dog - cat - fish With hard coded strings But if you want to walk two lists, that's with_nested. Here, though you do want to add them together. I just wanted to mention why you were seeing groups[A] literally in the first logfile above. On Thu, Jun 5, 2014 at 10:26 AM, C. Morgan Hamill cham...@wesleyan.edu wrote: Excerpts from Dmitry Makovey's message of 2014-06-04 18:17:04 -0400: Winning combination turned out to be: ( groups['A']+groups['B'] ) | unique I do like how simple it looks vs ( groups['A']|union (groups['B']))| unique Just FYI, the 'unique filter in the latter form is redundant; this should work fine: groups['A']|union(groups['B') Sets, by definition, have no duplicate items. -- Morgan -- 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 ansible-project+unsubscr...@googlegroups.com. To post to this group, send email to ansible-project@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/ansible-project/1401978298-sup-8285%40al.wesleyan.edu . 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 ansible-project+unsubscr...@googlegroups.com. To post to this group, send email to ansible-project@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/ansible-project/CA%2BnsWgwP24dioO_kXnXLYSxCBm49CSwDtTOH%3DYc1i_5UpBdTvg%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
Re: [ansible-project] with_items and array concatenation?
Excerpts from Dmitry Makovey's message of 2014-06-04 18:17:04 -0400: Winning combination turned out to be: ( groups['A']+groups['B'] ) | unique I do like how simple it looks vs ( groups['A']|union (groups['B']))| unique Just FYI, the 'unique filter in the latter form is redundant; this should work fine: groups['A']|union(groups['B') Sets, by definition, have no duplicate items. -- Morgan -- 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 ansible-project+unsubscr...@googlegroups.com. To post to this group, send email to ansible-project@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/ansible-project/1401978298-sup-8285%40al.wesleyan.edu. For more options, visit https://groups.google.com/d/optout.
[ansible-project] with_items and array concatenation?
Hi,
I've got a usecase where I'd like to iterate over several servers based on
groups, so task looks like:
- name: group A B
shell: echo {{ item }} /tmp/log
with_items:
- groups[A]
- groups[B]
so what I get in /tmp/log is:
groups['A']
groups['B']
Now, eliminating either group I can get:
- name: group A
shell: echo {{ item }} /tmp/log
with_items: groups[A]
I get proper result.
I'm pretty certain I've seen this topic come up recently but can't find it
anymore. Any pointers (including links to other topics) are welcome.
P.S.
for bonus points - can I do set-like concatenation - i.e. eliminate
duplicates?
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Re: [ansible-project] with_items and array concatenation?
On 06/04/2014 04:47 PM, Dmitry Makovey wrote: with_items: groups[A] ansible uses jinga2. Look up that syntax. Then, off the top of my head, may not be exactly right, but: groups[A].concat(groups[B]) | set | list Some of that is python syntax(the contact, check jinga2 and python docs), and the |set|list is jinga2. -- 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 ansible-project+unsubscr...@googlegroups.com. To post to this group, send email to ansible-project@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/ansible-project/538F94A6.1030402%40brainfood.com. For more options, visit https://groups.google.com/d/optout.
Re: [ansible-project] with_items and array concatenation?
nice try - but no dice: fatal: [192.168.0.138] = with_items expects a list or a set FATAL: all hosts have already failed -- aborting I even played a bit and checked python syntax making it: groups['A'].extend(groups['B'])|set with or without last list filter with original syntax or with my correction it fails as per above. - doesn't help much to pinpoint where the problem is. -- 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 ansible-project+unsubscr...@googlegroups.com. To post to this group, send email to ansible-project@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/ansible-project/dbf95bca-a694-42ec-b5f8-5a607b202157%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [ansible-project] with_items and array concatenation?
thanks to your hint I'm one step closer:
- name: group A B
shell: echo {{ item }} /tmp/log
with_items: groups[A] + groups[B]
however I still can't figure out how to make a set out of the result.
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Re: [ansible-project] with_items and array concatenation?
You might want to take a look at the 'set' filters provided by ansible at http://docs.ansible.com/playbooks_variables.html#set-theory-filters I imagine something like: with_items: groups['A']|union(groups['B'])|unique would work. I doubt it is needed, but you might have to add |list onto the end of that. I think jinja2 addition may also work: with_items: (groups['A'] + groups['B'])|unique On Wed, Jun 4, 2014 at 4:57 PM, Dmitry Makovey droopy4...@gmail.com wrote: nice try - but no dice: fatal: [192.168.0.138] = with_items expects a list or a set FATAL: all hosts have already failed -- aborting I even played a bit and checked python syntax making it: groups['A'].extend(groups['B'])|set with or without last list filter with original syntax or with my correction it fails as per above. - doesn't help much to pinpoint where the problem is. -- 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 ansible-project+unsubscr...@googlegroups.com. To post to this group, send email to ansible-project@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/ansible-project/dbf95bca-a694-42ec-b5f8-5a607b202157%40googlegroups.com https://groups.google.com/d/msgid/ansible-project/dbf95bca-a694-42ec-b5f8-5a607b202157%40googlegroups.com?utm_medium=emailutm_source=footer . For more options, visit https://groups.google.com/d/optout. -- Matt Martz m...@sivel.net http://sivel.net/ -- 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 ansible-project+unsubscr...@googlegroups.com. To post to this group, send email to ansible-project@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/ansible-project/CAD8N0v8kpHxPd5q-UiiN%2B7G-CDG7WSCv-Cxv_fwio%2BazPmJ%2Baw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
Re: [ansible-project] with_items and array concatenation?
Thanks Matt and Adam! Winning combination turned out to be: ( groups['A']+groups['B'] ) | unique I do like how simple it looks vs ( groups['A']|union (groups['B']))| unique since in my case I have more groups to add and it is very simple with + and less error-prone. -- 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 ansible-project+unsubscr...@googlegroups.com. To post to this group, send email to ansible-project@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/ansible-project/fc93fa6b-72eb-4cab-a4b7-3a7b6153f659%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
