On Wed, 22 Apr 2015, [email protected] wrote:
Guy, you saved my day!
You are right, my script is not a module, it is just called by the *shell*
module. Then using the *changed_when* clause did the job. Here is the code.
*my_playbook.yml*:
[...]
- name: my action
shell: /path/to/my_action.sh {{ my_arg }}
register: script
changed_when: script.rc == "changed"
when: my_arg is defined
[...]
*my_action.sh*:
[...]
echo "rc=changed"
exit 0
[...]
*Execution*:
[root@my_host] # ansible-playbook -v -l $(hostname -s) -c local
/path/to/my_playbook.yml
[...]
TASK: [my action]
*************************************************************
ok: [my_host] => {"changed": false, "cmd": "/path/to/my_action.sh
2015-04-05", "delta": "0:00:00.213521", "end": "2015-04-22 17:17:54.159018",
"rc": 0, "start": "2015-04-22 17:17:53.945497", "stderr": "", "stdout": "",
"stdout_lines": []}
Thank you very much, Brian!
I don't think this is right, script.rc reflects the return code, which is
an integer in the range 0 and 255. In your case this is 0 because you did
a "exit 0". So it can never be "changed".
Why not make your script into an Bash ansible module and have it return
"changed": true ? Here is a simple example of how to achieve this:
The bash module:
----
[dag@moria ansible]$ cat library/my_action
#!/bin/bash
changed=true
cpu_count=2
cpu_type="intel"
cat <<EOF
{
"changed": $changed,
"ansible_facts": {
"cpu_count": $cpu_count,
"cpu_type": "$cpu_type"
}
}
EOF
exit 0
----
The playbook:
----
- hosts: all
gather_facts: no
tasks:
- action: my_action
register: script
- action: debug msg='CPU count is {{ cpu_count }}'
----
The output:
----
[dag@moria ansible]$ ansible-playbook -v -l localhost testmodule.yml
PLAY [all]
********************************************************************
TASK: [my_action]
********************************************************************
changed: [localhost] => {"ansible_facts": {"cpu_count": 2, "cpu_type": "intel"},
"changed": true}
TASK: [debug msg='CPU count is {{ cpu_count }}']
********************************************************************
ok: [localhost] => {
"msg": "CPU count is 2"
}
PLAY RECAP
********************************************************************
localhost : ok=2 changed=1 unreachable=0 failed=0
----
Hope this helps...
--
Dag
