Hi Michael, thank you for taking the time to respond!
It's a bit of an unusual use case, so I am trying to understand if there is
a better way to solve the problem.
I am setting up mongo replication on two types of environments
1. Single-instance with replication for testing purposes
2. Multi-instance with replication for production purposes
In the single-instance case there are three init scripts on one machine
- /etc/init.d/mongod-mongo1
- /etc/init.d/mongod-mongo2
- /etc/init.d/mongod-mongo3
Starting all three services on instance A is a simple task for the single
instance topology
- name: start all three mongodb service
shell: creates=/var/lock/subsys/mongod-{{ item.name }}
/etc/init.d/mongod-{{ item.name }} start
with_items:
- { name: mongo1, host: mongo1.example.com }
- { name: mongo2, host: mongo2.example.com }
- { name: mongo3, host: mongo3.example.com }
However, if we're dealing with a multi-instance topology, I would want to
start */etc/init.d/mongo1* on instance A, and */etc/init.d/mongo2* on
instance B, and */etc/init.d/mongo3* on instance C. Here is a a crappy
solution to help illustrate the problem.
- name: start all three mongodb service
shell: ssh root@"{{ item.host}}"; creates=/var/lock/subsys/mongod-{{
item.name }} /etc/init.d/mongod-{{ item.name }} start
with_items:
- { name: mongo1, host: mongo1.example.com }
- { name: mongo2, host: mongo2.example.com }
- { name: mongo3, host: mongo3.example.com }
Thanks, Mike.
On Tuesday, 19 August 2014 11:38:21 UTC-7, Michael DeHaan wrote:
>
> " am running a playbook that connects to* remote host A*, and would like
> to know if it is possible to run a *delegate_to:* command on the *remote
> host* *A."*
>
> The delegate_to keyword is there to supply a different host to run on than
> one being traversed by Ansible's host loop. If you are looping over the
> playbook on A, and want to run the command on A, you would leave off the
> delegate_to entirely.
>
> I'm perhaps not understanding the question though.
>
>
>
>
> On Tue, Aug 19, 2014 at 12:38 AM, Mike Trienis <[email protected]
> <javascript:>> wrote:
>
>> Hi All,
>>
>> I am running a playbook that connects to* remote host A*, and would like
>> to know if it is possible to run a *delegate_to:* command on the *remote
>> host* *A. *The use case is that I have two different types of
>> environments, one that relies on /etc/hosts to resolve the domain, and
>> another type of environment that uses DNS to resolve the domain. So if I
>> run delegate_to: "my.host.com", it will either resolve to 127.0.0.1 in
>> the case of a single instance, or it will resolve the public IP address in
>> the case for a remote machine.
>>
>> - name: start all three mongodb services
>> delegate_to: "{{ item.host }}"
>> shell: creates=/var/lock/subsys/mongod-{{ item.name }}
>> /etc/init.d/mongod-{{ item.name }} start
>> with_flattened:
>> - replication_servers
>>
>> Any help would be appreciated
>>
>> --
>> 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 [email protected] <javascript:>.
>> To post to this group, send email to [email protected]
>> <javascript:>.
>> To view this discussion on the web visit
>> https://groups.google.com/d/msgid/ansible-project/c196e116-ce13-4ca6-b169-f01fac80ff3c%40googlegroups.com
>>
>> <https://groups.google.com/d/msgid/ansible-project/c196e116-ce13-4ca6-b169-f01fac80ff3c%40googlegroups.com?utm_medium=email&utm_source=footer>
>> .
>> For more options, visit https://groups.google.com/d/optout.
>>
>
>
--
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 [email protected].
To post to this group, send email to [email protected].
To view this discussion on the web visit
https://groups.google.com/d/msgid/ansible-project/69f4c41e-9d7f-4d1f-a5cd-da4984a6f25b%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
