How to use hostvars?

[黄冠雄]

My ansible version is 2.5.

In my playbook, one host needs to access other host's variable which I defined in inventory file.

I used {{ hostvars['groupname'].var_name }} and get an error, I also tried to use {{ hostvars['groupname']['var_name'] }} which get an error also.

So, I want to be clear how to use hostvars to access another host variables defined in the inventory file?

[Dick Visser]

You don't say what error you get?

In any case, you are trying to access hostvars for a group, which
isn't possible.
Instead, you need to access hostvars from a host.
So for a group, practically this is done by accessing the hostvars of
the first host of a group, like this:

hostvars[groups['groupname'][0]]['var_name']

Dick

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Dick Visser
Trust & Identity Service Operations Manager
GÉANT

[黄冠雄]

Hi, thanks for your reply, I resolve this by using {{ hostvars[groups['groupname'][0]].var_name }}.

在 2019年9月9日星期一 UTC+8下午6:26:25，Dick Visser写道：

You don't say what error you get?

In any case, you are trying to access hostvars for a group, which
isn't possible.
Instead, you need to access hostvars from a host.
So for a group, practically this is done by accessing the hostvars of
the first host of a group, like this:

 hostvars[groups['groupname'][0]]['var_name']

Dick

On Mon, 9 Sep 2019 at 11:54, 黄冠雄 <huanggu...@gmail.com> wrote:
>
> My ansible version is 2.5.
> In my playbook, one host needs to access other host's variable which I defined in inventory file.
> I used {{ hostvars['groupname'].var_name }} and get an error, I also tried to use {{ hostvars['groupname']['var_name'] }} which get an error also.
> So, I want to be clear how to use hostvars to access another host variables defined in the inventory file?
>
> --
> You received this message because you are subscribed to the Google Groups "Ansible Project" group.

> To unsubscribe from this group and stop receiving emails from it, send an email to ansible...@googlegroups.com.