use subelement-variables in templates

[Sebastian Gumprich]

Hi,

I have the following variables:

splunkforwarder_log_items:
  - source: "/var/log"
    app_name: "var_log"
    recursive: true
    index: "testindex"
    splunkforwarder_log_files:
      - logfile: "messages"
        name: "var_log"
        sourcetype: linux_messages_syslog

and the following task:

- name: drop props configuration
  template:
    src=props_conf.j2
    dest={{splunkforwarder_dir}}/etc/apps/{{item.0.app_name}}/props.conf
    owner=splunk
    group=splunk
    mode=640
  with_subelements:
    - splunkforwarder_log_items
    - splunkforwarder_log_files

Is it possible to use the variables from the subelement "splunkforwarder_log_files" in the "props_conf.j2"-template? For example like this:

{% for sources in splunkforwarder_log_items.splunkforwarder_log_files %}
[source::.../{{sources.logfile}}]
sourcetype = {{sources.sourcetype}}
{% endfor %}

Or is there a simpler alternative?

Regards
Sebastian

[Michael DeHaan]

With what you have above, item.0 is the overall list and item.1 is each item in the splunkforwarder_log_files, however it looks like you shouldn't be using "with_subelements" at all, because the only variable in your task definition that changes is item.0

Unless I'm missing something, I would switch to a basic "with_items" and avoid calling the template task multiple times, and then just rely on the loop inside the template.

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[Sebastian Gumprich]

That did the trick!

Here's my configuration now, for completeness:

vars:

splunkforwarder_log_items:
  - app1_name: var_log
    source: "/var/log"

    recursive: true
    index: "testindex"

splunkforwarder_log_files:
  - logfile: "messages"

    app_name: "var_log"
    sourcetype: linux_messages_syslog

task:

- name: drop props configuration
  template:
    src=props_conf.

j2
    dest={{splunkforwarder_dir}}/etc/apps/{{ item.app_name }}/props.conf
    owner=splunk
    group=splunk
    mode=640
  with_items: splunkforwarder_log_files

template:

{% for source in splunkforwarder_log_files %}
[source::.../{{source.logfile}}]
sourcetype = {{source.sourcetype}}
{% endfor %}

Thanks!