rebooting nodes (centos)

[Trond Hindenes]

Hi all,

As part of a playbook I reboot nodes if they're missing a file I'm checking against. This is done like so:

- name: Reboot node if check file does not exist (we assume this is the first run)

  command: shutdown -r now "Ansible updates triggered"

  when: reboot_check_file.stat.exists == False

  async: 0

  poll: 0

  ignore_errors: true

However, whatever I do I always get a "exception: SSH Error: Shared connection to app10002 closed". How can I force ansible to continue running although it lost its connection?

[Trond Hindenes]

This is the actual error I'm getting:

fatal: [<servername>] => SSH Error: Shared connection to <servername> closed.

[David Karban]

Hi, are you using wait_for?

- name: Reboot

  command: shutdown -r now

  

- name: Wait until ssh is available again

  local_action: wait_for port=22 host={{ inventory_hostname }} search_regex=OpenSSH delay=10

David Karban
Linux server specialist/Specialista na správu linuxových serverů
www.karban.eu

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[Bill Nottingham]

When you call 'shutdown -r now', that means the task cleanup is going to race against the system shutdown killing the ssh daemon. Even if you're running it async, you probably want a bit of delay.

Bill

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Bill Nottingham

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[Vikas Kumar]

Hi Trond,

I use these tasks to reboot servers. These work fine for CentOS 6 and 7 servers.

- shell: sleep 5 && shutdown -r "{{ '1' if ansible_distribution_major_version == '7' else 'now' }}"

- local_action: wait_for host={{ ansible_hostname }} port=22 timeout=300 delay=90 state=started

Hope this helps.

Regards,

Vikas

[Trond Hindenes]

Thanks guys. A shell wait combined with async is probably the way to go. I'll test tomorrow and report back!