HOstname always change

[Pietro Leone]

Hi, I created this playbook:

---

- name: basic host configuration

  hosts: ansibleclt00

  become: True

  tasks:

  - name: get hostname

    shell: hostname

    register: nomemacchina

  - name: change hostname

    vars:

      mio_ipaddr: 192.168.43.101

      mio_prefix: 24

      mio_gateway: 192.168.43.1

      mio_dns: 8.8.8.8

      mio_hostname: ansibleclt00

    command: hostnamectl set-hostname {{ mio_hostname }}

    when: nomemacchina != mio_hostname

    register: nomehost

  - name: reboot the server

    shell: /sbin/shutdown -r 1

    async: 0

    poll: 0

    ignore_errors: true

    register: riavvio

    when: nomehost.changed

When I run it:

PLAY [basic host configuration] ************************************************

TASK [setup] *******************************************************************

ok: [ansibleclt00]

TASK [get hostname] ************************************************************

changed: [ansibleclt00]

TASK [change hostname] *********************************************************

changed: [ansibleclt00]

TASK [reboot the server] *******************************************************

changed: [ansibleclt00]

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

ansibleclt00               : ok=4    changed=3    unreachable=0    failed=0

I'm experimenting with ansible, my idea is to verify the hostname of a server, if the name differs from the name in variable "mio_hostname", the hostname is changed (task "change hostname") to mio_hostname and then the server is rebooted.

But seems that the hostname differs everytime and I do not understand why.

Any idea?

ansible 2.1.1.0 on CentOS7

Thanks, Pietro.

[Dick Davies]

nomemacchina isn't a simple string.

add a debug: task to print it, it's a data structure. start with
nomemacchina.stdout and take it from there.

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