c12s-kubespray/roles/kernel-upgrade/tasks/reboot.yml

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---
# Reboot the machine gets more complicated as we want to support bastion hosts. A simple wait_for task would not work
# as we can not directly reach the hosts (except the bastion). In case a basion is used, we first check for it to come
# back. After it is back, we check for all the hosts by delegating to the bastion.
- name: Rebooting server
shell: nohup bash -c "sleep 5 && shutdown -r now 'Reboot required for updated kernel'" &
- name: Wait for some seconds
pause:
seconds: 10
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- set_fact:
is_bastion: "{{ inventory_hostname == 'bastion' }}"
wait_for_delegate: "localhost"
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- set_fact:
wait_for_delegate: "{{hostvars['bastion']['ansible_ssh_host']}}"
when: "{{ 'bastion' in groups['all'] }}"
- name: wait for bastion to come back
wait_for:
host: "{{ ansible_ssh_host }}"
port: 22
delay: 10
timeout: 300
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become: false
delegate_to: localhost
when: "is_bastion"
- name: waiting for server to come back (using bastion if necessary)
wait_for:
host: "{{ ansible_ssh_host }}"
port: 22
delay: 10
timeout: 300
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become: false
delegate_to: "{{ wait_for_delegate }}"
when: "not is_bastion"