No, I tried to explain this in a previous response.
add_host is what is called a "bypass host loop" plugin. This means that
add_host will only execute for the first host targeted by your `hosts`
specification. Your `hosts` targets a group containing the following hosts:
aaa-frs-ans-test1
aaa-frs-ans-test2
aaa-frs-ans-test3
As such, add_host only runs for aaa-frs-ans-test1.
The problem is with how you have structured your tasks. You have
instructed ansible to build a new server, for each one of these servers.
The results of your `ec2` variable that you register, get stored per host
(aaa-frs-ans-test1, aaa-frs-ans-test2, aaa-frs-ans-test3). This means that
`ec2.instances` only hold the results of a single host build, per host.
Most people only target localhost, instead of a group that contains
multiple hosts.
And then they build servers with the ec2 module using exact_count, or
with_items, then all of the results for building all new instances, are
stored with 1 inventory host.
So again, you are building 3 new instances, using 3 old instances, so
effectively you end up with an `ec2` variable stored for each host
(aaa-frs-ans-test1, aaa-frs-ans-test2, aaa-frs-ans-test3).
However add_host only runs on the first host (bypass host loop plugin), and
thus only has access to the `ec2` var stored for aaa-frs-ans-test1.
Another solution would be to do something like:
- name: Add hosts group temporary inventory group
add_host: name={{ hostvars[item]['ec2'].instances.0.private_ip }}
groups=dynamic
with_items: "{{ play_hosts }}"
However, that assumes you always have only created 1 instance via the ec2
task per host in the play.
Another option, and this is completely untested, is to use the `extract`
filter, something like:
- name: Add hosts group temporary inventory group
add_host: name={{ item.private_ip }} groups=dynamic
with_items: "{{ play_hosts|map('extract', hostvars, ['ec2',
'instances'])|list }}"
On Fri, May 27, 2016 at 11:42 AM, Eric S <[email protected]> wrote:
> is it an issue with the add_host module? I even tried upgrading to 2.1
> and still am experiencing the same thing. Can the add_host module only add
> one host at a time?
>
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Matt Martz
@sivel
sivel.net
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