tl;dr: is there a way to make with_subelements work with dicts? Or
something to that effect?
I've been trying to figure out how to run a task over a dict, that also
loops over a nested dict in order to run the actual commands.
So far, I haven't figured out how to use with_items, with_dict, or
with_nested to do what I want. with_subelements comes close, but keeps
choking on the fact my subelement is not a list.
My playbook (would have pastebined it, but pastebin wouldn't load for
me...):
---
> # testing playbook
> - hosts: 192.168.88.2
> vars:
> people:
> johnsmith:
> fname: john
> lname: smith
> locations:
> birthplace:
> state: id
> city: boise
> second:
> state: or
> city: portland
> third:
> state: ha
> city: honolulu
> jilljones:
> fname: jill
> lname: jones
> locations:
> birthplace:
> state: mo
> city: springfield
> second:
> state: mt
> city: fort benton
> third:
> state: id
> city: emmett
> jilljones:
> locations:
> birthplace:
> state: wa
> city: wilbur
> tasks:
> - name: testing dict
> debug: msg="{{ item.1 }}"
> with_subelements:
> - people
> - locations
The output:
>
> $ ansible-playbook -i hosts -u vagrant --sudo tmp/testing.yml
> PLAY [192.168.88.2]
> ***********************************************************
> GATHERING FACTS
> ***************************************************************
> ok: [192.168.88.2]
> TASK: [testing dict]
> **********************************************************
> fatal: [192.168.88.2] => the key locations should point to a list, got
> '{'birthplace': {'city': 'boise', 'state': 'id'}, 'second': {'city':
> 'portland', 'state': 'or'}, 'third': {'city': 'honolulu', 'state': 'ha'}}'
> FATAL: all hosts have already failed -- aborting
> PLAY RECAP
> ********************************************************************
> to retry, use: --limit @/home/reagand/testing.retry
> 192.168.88.2 : ok=1 changed=0 unreachable=1
> failed=0
What I want to see is something like:
johnsmith:
> birthplace:
> state: id
> city: boise
> second:
> state: or
> city: portland
> third:
> state: ha
> city: honolulu
> jilljones:
> birthplace:
> state: wa
> city: wilbur
> second:
> state: mt
> city: fort benton
> third:
> state: id
> city: emmett
I really need this to be a dict/hash so that hash_behaviour=merge works.
For example, if I want jilljones birthplace to default to springfield, mo,
in group_vars, but for a specific host it should be seattle, wa, then I
would set the following in the specific host_vars file:
people:
> jilljones:
> locations:
> birthplace:
> city: seattle
> state: wa
Note, I've only been using this people hash as something to experiment on.
My actual use case is a task that sets configuration settings for a web
app. The app config didn't lend itself to templating. I tried that first.
Now I've ended up with lininfile regex replacements, each named with their
own key. Something like:
configkey:
> regex:
> value:
> configkey2:
> regex:
> value:
> ...
That's the equivalent of the locations hash in my testing playbook.
I also don't know how many instances of the app I'll have per server, so I
can't just do a task per instance.
Ultimately, if I make my subelement a list, http://pastebin.com/mixMTz6H
(pastebin worked earlier...) it works, but it overrides all the previously
set subelements of the main key. That means I have to copy all the
locations from group_vars into host_vars if I want to override something on
a specific host. I'd prefer to avoid that. So, is there a with_subelements
that would work with a hash like I want? Or another way to get the same
effect?
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