Get host name of the servers where the task failed

[Pandu jh]

I have a task in my playbook where it runs against multiple servers.

I need to get the hostname of all servers where my task failed and append it to a variable as a list.

Please assist how to get this.

---

- name: GET OS DETAILS

hosts: all

tasks:

- name: GET

shell: lsb_release -a | grep Release ; uname -r ; uptime

register: cmd_out

- debug:

msg:

- OS Version: "{{ ansible_distribution_version }}"

- Kernel Version: "{{ ansible_kernel }}"

- Uptime: "{{ facter_system_uptime.uptime }}"

[vinoth kumar]

If you are running in ansible engine it will automatically create a file as yourplayboonname.retry in same folder 

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