Ok thanks. Indeed I've resorted to writing the inventory and host
parameters to a tmp file, off a jinja2 template, and using the ansible -i
option to read from it. Still it would be a nice enhancement for Ansible to
support such "piped" inventories, as the Ansible API is way too cumbersome
to use (passing all those config params is a nightmare in 2.0+).
Rough working code is:
inventory_template = jinja2.Template(inventory)
rendered_inventory = inventory_template.render({
'host': "centos2"
})
# Create a temporary file and write the template string to it
hosts_inv = NamedTemporaryFile(delete=False, bufsize=0)
hosts_inv.write(rendered_inventory)
cmd = "ansible-playbook " + playbook + \
" -i " + hosts_inv.name
" -e " + extra_params
if debug:
cmd += " -vvv"
print("Ansible command: %s" % cmd)
with hosts_inv:
try:
ret = call(cmd, shell=True)
except Exception as e:
print "ERROR: [%s]: could not execute [%s]" % (cmd, e.errno)
if not ret:
print("Command '%s' executed successfully" % cmd)
else:
print "ERROR: [%s]: failed in execution not execute [%s]" %
(cmd, ret)
On Wednesday, February 15, 2017 at 6:04:08 PM UTC+1, Matt Martz wrote:
>
> I hit enter too early, my other recommendation was an inventory script,
> that wouldn't have to have anything hard coded, and could pull from the
> same database that your "REST server" utilizes. For documentation on
> dynamic inventories see:
>
> http://docs.ansible.com/ansible/dev_guide/developing_inventory.html
>
> On Wed, Feb 15, 2017 at 11:02 AM, Matt Martz <[email protected]
> <javascript:>> wrote:
>
>> You are going to need an actual file. There really isn't a way to just
>> pass an inventory blob into ansible, that doesn't exist as a file.
>>
>> I've done it with the ansible python API, but it was a bit complex, and
>> potentially very fragile as the API was not designed for this.
>>
>> On Wed, Feb 15, 2017 at 7:40 AM, W Dec <[email protected] <javascript:>>
>> wrote:
>>
>>> Hi All,
>>>
>>> while trying, and so far not very successfully, to work with the (overly
>>> verbose) Ansible 2 programmatic API, I came to think of another possible
>>> solution to my problem, but am looking for tips on how to put it into
>>> action.
>>> The problem: I have a python REST server which accepts host
>>> registrations. From these I'm able to generate a JSON/YAML inventory blob,
>>> that I'd like to pass simply to the ansible-playbook command line command
>>> spun up in a seperate thread. I do not want to write the inventory to a
>>> local file.
>>>
>>> In other words, invoke ansible CLI from my python script, but poassing a
>>> dynamically generated inventory blob.
>>>
>>> Playing around with all kinds of "ansible-playbook -i ... <name of
>>> playbook>" redirects was so far unsucessful. Any pointers/examples of
>>> something like this?
>>>
>>> Cheers,
>>> W.
>>>
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>>
>>
>>
>> --
>> Matt Martz
>> @sivel
>> sivel.net
>>
>
>
>
> --
> Matt Martz
> @sivel
> sivel.net
>
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