Get stdout using loop

[Александр Лозовской]

Hi! How i can get stdout using loop (f.e. for with_sequence statement)?

An example of how I want to use it:

Введите код...

• hosts: 127.0.0.1
  connection: local
  gather_facts: no

  tasks:

  • name: "TEST"
    command: curl -o /dev/null --silent --head --write-out "%{http_code}" http://host"{{ item }}":80
    register: status
    with_sequence: count=4

  • debug: msg="{{ item.stdout }}"

[Michael DeHaan]

The above request was registered to a variable called "status", but since you are using with_sequence this is saved in an array.

Take a look at what you have like so:

- debug: var=status

Finally, you'll probably see that you want:

- debug: msg="{{ item.stdout }}

  with_items: status

item doesn't mean anything unless there's a loop in play, so you have to loop over status to use it.

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[Brian Coca]

status will be a list, so you have 4 stdout​s to look at:

- debug: msg={{item.stdout}}

  with_items: status.results

[Александр Лозовской]

воскресенье, 22 июня 2014 г., 20:18:58 UTC+4 пользователь Brian Coca написал:

status will be a list, so you have 4 stdout​s to look at:

- debug: msg={{item.stdout}}

  with_items: status.results

In this case i got all message from  status.results and stdout after it.

I solved this problem through this:

debug: msg="{% for results in status.results %} {{results.cmd.7}} - {{ results.stdout }} {% endfor %}"

In this case, I get what I need, but all 4 stdout output in a single line. How do I put a linebreak after each row (Ansible escapes '\n').

[Michael DeHaan]

Do what Brian said.

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[Александр Лозовской]

понедельник, 23 июня 2014 г., 16:09:20 UTC+4 пользователь Michael DeHaan написал:

Do what Brian said.

I've done it.

Playbook:

---

- hosts: 127.0.0.1

  connection: local

  gather_facts: no

  tasks:

  - name: get info

    command: curl -o /dev/null --silent --head --write-out "%{http_code}" "{{item}}"

    register: status

    with_items:

     - http://google.com

     - http://ansible.com

  - debug: var={{item.stdout}}

    with_items: status.results

Results: 

PLAY [127.0.0.1] ************************************************************** 

TASK: [get info] ************************************************************** 

changed: [127.0.0.1] => (item=http://google.com)

changed: [127.0.0.1] => (item=http://ansible.com)

TASK: [debug var={{item.stdout}}] ********************************************* 

ok: [127.0.0.1] => (item={'item': 'http://google.com', u'delta': u'0:00:00.072241', u'cmd': [u'curl', u'-o', u'/dev/null', u'--silent', u'--head', u'--write-out', u'%{http_code}', u'http://google.com'], u'end': u'2014-06-23 17:23:19.005928', u'stderr': u'', u'stdout': u'302', 'invocation': {'module_name': 'command', 'module_args': u'curl -o /dev/null --silent --head --write-out "%{http_code}" "http://google.com"'}, u'changed': True, u'rc': 0, u'start': u'2014-06-23 17:23:18.933687'}) => {

    "302": "302", 

    "item": {

        "changed": true, 

        "cmd": [

            "curl", 

            "-o", 

            "/dev/null", 

            "--silent", 

            "--head", 

            "--write-out", 

            "%{http_code}", 

            "http://google.com"

        ], 

        "delta": "0:00:00.072241", 

        "end": "2014-06-23 17:23:19.005928", 

        "invocation": {

            "module_args": "curl -o /dev/null --silent --head --write-out \"%{http_code}\" \"http://google.com\"", 

            "module_name": "command"

        }, 

        "item": "http://google.com", 

        "rc": 0, 

        "start": "2014-06-23 17:23:18.933687", 

        "stderr": "", 

        "stdout": "302"

    }

}

ok: [127.0.0.1] => (item={'item': 'http://ansible.com', u'delta': u'0:00:00.167076', u'cmd': [u'curl', u'-o', u'/dev/null', u'--silent', u'--head', u'--write-out', u'%{http_code}', u'http://ansible.com'], u'end': u'2014-06-23 17:23:19.212962', u'stderr': u'', u'stdout': u'302', 'invocation': {'module_name': 'command', 'module_args': u'curl -o /dev/null --silent --head --write-out "%{http_code}" "http://ansible.com"'}, u'changed': True, u'rc': 0, u'start': u'2014-06-23 17:23:19.045886'}) => {

    "302": "302", 

    "item": {

        "changed": true, 

        "cmd": [

            "curl", 

            "-o", 

            "/dev/null", 

            "--silent", 

            "--head", 

            "--write-out", 

            "%{http_code}", 

            "http://ansible.com"

        ], 

        "delta": "0:00:00.167076", 

        "end": "2014-06-23 17:23:19.212962", 

        "invocation": {

            "module_args": "curl -o /dev/null --silent --head --write-out \"%{http_code}\" \"http://ansible.com\"", 

            "module_name": "command"

        }, 

        "item": "http://ansible.com", 

        "rc": 0, 

        "start": "2014-06-23 17:23:19.045886", 

        "stderr": "", 

        "stdout": "302"

    }

}

PLAY RECAP ******************************************************************** 

127.0.0.1                  : ok=2    changed=1    unreachable=0    failed=0