# gather further host list to run next play **URL:** \ **Category:** Ansible Project\ **Created:** [July 4, 2013, 3:21pm UTC](https://forum.ansible.com/t/gather-further-host-list-to-run-next-play/13067 "2013-07-04T15:21:10Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![mastermind](https://avatars.discourse-cdn.com/v4/letter/m/ecae2f/32.png) [@mastermind](https://forum.ansible.com/u/mastermind)\ **Post date:** [July 4, 2013, 3:21pm UTC](https://forum.ansible.com/t/gather-further-host-list-to-run-next-play/13067/1 "2013-07-04T15:21:10Z")
Hi, i guys, is there a possibility to do stuff like the following? my playbook: ---
**Author:** ![Timothy\_Gerla](https://avatars.discourse-cdn.com/v4/letter/t/977dab/32.png) [@Timothy\_Gerla](https://forum.ansible.com/u/Timothy_Gerla)\ **Post date:** [July 4, 2013, 3:24pm UTC](https://forum.ansible.com/t/gather-further-host-list-to-run-next-play/13067/2 "2013-07-04T15:24:45Z")
Hi, Take a look at the "add\_host" module which could probably be used to achieve this. Hope this helps! -Tim ---
**Author:** ![mastermind](https://avatars.discourse-cdn.com/v4/letter/m/ecae2f/32.png) [@mastermind](https://forum.ansible.com/u/mastermind)\ **Post date:** [July 4, 2013, 3:27pm UTC](https://forum.ansible.com/t/gather-further-host-list-to-run-next-play/13067/3 "2013-07-04T15:27:31Z")
Cool! I didnt find it before… it seems that this module really helps me out ---
**Author:** ![mastermind](https://avatars.discourse-cdn.com/v4/letter/m/ecae2f/32.png) [@mastermind](https://forum.ansible.com/u/mastermind)\ **Post date:** [July 4, 2013, 4:49pm UTC](https://forum.ansible.com/t/gather-further-host-list-to-run-next-play/13067/4 "2013-07-04T16:49:50Z")
Hi once again, maybe some can give me one more hint, what my failure here: ---
**Author:** ![Timothy\_Gerla](https://avatars.discourse-cdn.com/v4/letter/t/977dab/32.png) [@Timothy\_Gerla](https://forum.ansible.com/u/Timothy_Gerla)\ **Post date:** [July 4, 2013, 4:53pm UTC](https://forum.ansible.com/t/gather-further-host-list-to-run-next-play/13067/5 "2013-07-04T16:53:03Z")
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 ---
**Author:** ![Michael\_DeHaan2](https://avatars.discourse-cdn.com/v4/letter/m/da6949/32.png) [@Michael\_DeHaan2](https://forum.ansible.com/u/Michael_DeHaan2)\ **Post date:** [July 4, 2013, 6:28pm UTC](https://forum.ansible.com/t/gather-further-host-list-to-run-next-play/13067/6 "2013-07-04T18:28:16Z")
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. ---
**Author:** ![mastermind](https://avatars.discourse-cdn.com/v4/letter/m/ecae2f/32.png) [@mastermind](https://forum.ansible.com/u/mastermind)\ **Post date:** [July 4, 2013, 8:46pm UTC](https://forum.ansible.com/t/gather-further-host-list-to-run-next-play/13067/7 "2013-07-04T20:46:22Z")
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… ☹ lborchard@smo001:~/ansible\_work$ ansible --version ansible 1.1