gather further host list to run next play

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1

Hi,

i guys, is there a possibility to do stuff like the following?

my playbook:

2

Hi,

Take a look at the "add_host" module which could probably be used to
achieve this. Hope this helps!

-Tim

3

Cool! I didnt find it before… it seems that this module really helps me out

4

Hi once again,

maybe some can give me one more hint, what my failure here:

5

Do you have any hosts in [all] right now? You need at least one,
probably "localhost". So I'd try something like this:

inventory:

[local]
localhost

and then the play:

- hosts: local
  tasks:
    - name: add hosts to new group
      action: add_host name=10.1.93.171 groups=just_created

...

Your second play looks fine.

Hope this helps,

-Tim

6

Yeah be aware hosts:all is not how you want to use “group_by”, more like “hosts:localhost”. Won’t hurt anything, but you really want to only run that step once, not once per host.

And you want to make sure that localhost is defined in inventory too.

7

Hi Michael, hi Tim,

you’re right, host: all isnt good, but i limited the playbook call to one single host with -l :)… Anyways, yes i got an inventory with one group (all) and about 4000 machines.
The machine in my test play (10.1.93.171), exists also in there.

Now i moved my inventory script in /etc/ansible/hosts and have written only one host (localhost) in there as Tim suggested. same result:

lborchard@smo001:~/ansible_work$ ansible-playbook -l localhost count-tst.yml -vv

PLAY [all] *********************

GATHERING FACTS *********************
REMOTE_MODULE setup
ok: [localhost]

TASK: [add hosts to new group] *********************
creating host via ‘add_host’: hostname=10.1.93.171
added host to group via add_host module: just_created
changed: [localhost] => {“changed”: true, “new_groups”: [“just_created”], “new_host”: “10.1.93.171”}

PLAY [just_created] *********************
skipping: no hosts matched

PLAY RECAP *********************
localhost : ok=2 changed=1 unreachable=0 failed=0

lborchard@smo001:~/ansible_work$ cat /etc/ansible/hosts
[all]
localhost

Dont get it… :frowning:
lborchard@smo001:~/ansible_work$ ansible --version
ansible 1.1