Re: [ansible-project] Run a playbook with arbitrary host not in the inventory hosts list?

[Brian Coca]

-i 'myhost,'  will define an inventory on the command line where you
can add any host/ip you want.

^ observe the , is needed even if only 1 host is defined to signify
this is a list and not a path to a file


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Brian Coca

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[ansible-project] When using ec2 or rax in a role, facts set following an add_host loop are lost when execution returns to the calling playbook

[Mark Casey]

Hello,

I'm actually revisiting a problem I originally just worked around... maybe 
18 to 24 months ago. I just now did some searching of the list, but there 
were just pages and pages for most searches I tried so apologies if this is 
a solved thing and I missed it.

What I do now to deploy to cloud hosts is have the playbook call a role 
named rax/add_rax or ec2/add_ec2. In that role I use the appropriate cloud 
module to create the hosts (or discover they are already there, of course), 
then I run the add_host loop on the result. The next role that it runs is 
named gather_custom_facts and it detects what provider is in use and uses 
the appropriate "get_facts" type module to set facts named 'private_ip' and 
'public_ip' for each host. (not to imply that hosts from different 
providers are in the same ansible-playbook run; that is still on a Someday 
list somewhere)

I do it this way so that plays work on both clouds with the same names for 
these IP variables (or facts in this case, I suppose). The problem is that 
I feel like it adds quite a bit of overhead (measured both in computing 
resources and to the learning curve for new team members). To just have a 
single ping: task you're already two or three plays in just to have 
inventory.

It seems like the easiest thing would be to use set_fact in the cloud 
provider-specific create/"persist" role and have it still exist in the 
calling playbook. But, of course, the hosts aren't actually in inventory 
yet (and even if they are the set_fact would still be a local_action). I've 
revisited this once or twice in the past and never really got anywhere so 
here I am. :)

Any ideas?

Thank you,
Mark

P.S.: For entertainment value only, I was wondering also if it'd be 
possible to write an inventory script that simply calls ansible-playbook 
again and spits out some inventory-compatible json after running these two 
or three host gathering roles.

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[ansible-project] Run a playbook with arbitrary host not in the inventory hosts list?

[Peter Loron]

Hello. I often want to run a playbook against an arbitrary host, sometimes 
one not defined in my inventory hosts file. Is there a way of specifying an 
arbitrary hostname or IP on the ansible-playbook command line to run things 
this way? It's a pain to have to edit the inventory each time I want to run 
something against a temporary machine (e.g. for testing).

Thanks.

-Pete

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Re: [ansible-project] installation on Mac OSX issue

[Matt Martz]

The recommended method of installing Ansible on Mac is to install from
source and not via homebrew.

http://docs.ansible.com/ansible/intro_installation.html#latest-releases-on-mac-osx


You are likely to only run into problems with homebrew installed ansible

On Tuesday, August 18, 2015, Sebastian M Cheung 
wrote:

> After installation via $brew install ansible
>
>
> then, I added in ~/.bashrc
>
>
> #Ansible
>
> export PATH=/usr/local/Cellar/ansible/1.9.2/bin:$PATH
>
>
> $source .bashrc
>
>
> then
>
>
> $ ansible
>
> /usr/local/Cellar/ansible/1.9.2/bin/ansible:
> /usr/local/Cellar/ansible/1.9.2/libexec/bin/ansible: /usr/bin/python: bad
> interpreter: No such file or directory
>
> /usr/local/Cellar/ansible/1.9.2/bin/ansible: line 2:
> /usr/local/Cellar/ansible/1.9.2/libexec/bin/ansible: Undefined error: 0
>
>
> anyone? My default python is
>
>
> $which python
>
> /Users/seb/anaconda/bin/python so I guess it doesn't know which python
> interpreter to use? If so how to modify Ansible script
>
>
> Thanks
>
>
>
>
> Sebastian
>
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>


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Matt Martz
@sivel
sivel.net

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[ansible-project] installation on Mac OSX issue

[Sebastian M Cheung]

 

After installation via $brew install ansible


then, I added in ~/.bashrc


#Ansible

export PATH=/usr/local/Cellar/ansible/1.9.2/bin:$PATH


$source .bashrc


then


$ ansible

/usr/local/Cellar/ansible/1.9.2/bin/ansible: 
/usr/local/Cellar/ansible/1.9.2/libexec/bin/ansible: /usr/bin/python: bad 
interpreter: No such file or directory

/usr/local/Cellar/ansible/1.9.2/bin/ansible: line 2: 
/usr/local/Cellar/ansible/1.9.2/libexec/bin/ansible: Undefined error: 0


anyone? My default python is 


$which python

/Users/seb/anaconda/bin/python so I guess it doesn't know which python 
interpreter to use? If so how to modify Ansible script


Thanks




Sebastian

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[ansible-project] Re: Ignoring errors in check mode

[Albertdev]

Nobody got any comments if and where to best report these errors? While my 
original mail was more of a rant than a constructive topic, I still have 
these errors when I try to put a variable in ignore_errors:

When I directly reference a variable:

ERROR: error while evaluating conditional: ansible_check_mode
>

When I use a jinja placeholder:

Traceback (most recent call last):
>   File "/usr/bin/ansible-playbook", line 323, in 
> sys.exit(main(sys.argv[1:]))
>   File "/usr/bin/ansible-playbook", line 263, in main
> pb.run()
>   File "/usr/lib/python2.6/site-packages/ansible/playbook/__init__.py", 
> line 348, in run
> if not self._run_play(play):
>   File "/usr/lib/python2.6/site-packages/ansible/playbook/__init__.py", 
> line 788, in _run_play
> if not self._run_task(play, task, False):
>   File "/usr/lib/python2.6/site-packages/ansible/playbook/__init__.py", 
> line 493, in _run_task
> task.ignore_errors =  utils.check_conditional(cond, play.basedir, 
> task.module_vars, fail_on_undefined=C.DEFAULT_UNDEFINED_VAR_BEHAVIOR)
>   File "/usr/lib/python2.6/site-packages/ansible/utils/__init__.py", line 
> 265, in check_conditional
> conditional = template.template(basedir, conditional, inject, 
> fail_on_undefined=fail_on_undefined)
>   File "/usr/lib/python2.6/site-packages/ansible/utils/template.py", line 
> 121, in template
> varname = template_from_string(basedir, varname, templatevars, 
> fail_on_undefined)
>   File "/usr/lib/python2.6/site-packages/ansible/utils/template.py", line 
> 368, in template_from_string
> res = jinja2.utils.concat(rf)
>   File "", line 8, in root
>   File "/usr/lib/python2.6/site-packages/jinja2/runtime.py", line 485, in 
> _fail_with_undefined_error
> raise self._undefined_exception(hint)
> jinja2.exceptions.UndefinedError: 'ansible_check_mode' is undefined
>



I have since worked around the problem like this but I hate this kind of 
boilerplate:

---
> - hosts: all
>   name: testing
>   tasks:
> - name: print variable
>   action: debug msg="Does variable exist [{{ ansible_check_mode 
> }}]"
> - name: Make symlink
>   action: file src="/ohwhat/hai" dest="/there/youare" state=link
>   ignore_errors: True
>   register: symlinkresult
> - name: Fail if symlink could not be created
>   action: fail msg="Symlink could not be created"
>   when: "{{ not ( ansible_check_mode) and (symlinkresult | failed) 
> }}"
>



With best regards,

Albert

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[ansible-project] Using when: x in y if y is a list of dicts

[Rob White]

Hi guys,

I wonder if anyone knows if it's possible do use the 'in' clause with a 
list of dicts.

I have a list that looks like this:

[{u'state': None, u'id': u'i-233b31yy'}, {u'state': None, u'id': 
u'i-2a2281xx'}]

I want to add_host if an id is not in the list, something like:

vars:
  mylist:
- {u'state': None, u'id': u'i-233b31yy'}
- {u'state': None, u'id': u'i-2a2281xx'}
tasks:
  local_action:
module: add_host
name: "{{ ansible_ec2_local_ipv4 }}"
group: not_in_elb
  when: ansible_ec2_instance_id not in mylist

The above fails because the list items are dicts.  How can I just look at 
the id value of each dict in the list?

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[ansible-project] how to abort task execution for other hosts if one task fails for one host

[Leon Xie]

hi all,

I have the below ansible playbook

++
- name: do task for AA
  hosts: AA
  roles:
- AA_ROLE

- name: do task for BB
  hosts: BB
  roles:
- BB_ROLE
++

Currently even if one task in AA_ROLE for AA fails, the tasks in BB_ROLE 
for BB will also be run.

what I want is that if any task in AA_ROLE fails, the tasks in BB_ROLE 
won't be executed.

is there any method to achieve this?

thanks a lot in advance.

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