homelab-nomad/ansible_playbooks/recover-nomad.yaml

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---
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- name: Recover Nomad
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hosts: nomad_instances
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any_errors_fatal: true
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tasks:
- name: Stop Nomad
systemd:
name: nomad
state: stopped
become: true
- name: Get node-id
slurp:
src: /var/nomad/server/node-id
register: nomad_node_id
become: true
- name: Node Info
debug:
msg: |
node_id: {{ nomad_node_id.content | b64decode }}
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address: {{ ansible_default_ipv4.address }}
- name: Save
copy:
dest: /var/nomad/server/raft/peers.json
# I used to have reject('equalto', inventory_hostname) in the loop, but I'm not sure if I should
content: |
[
{% for host in ansible_play_hosts -%}
{
"id": "{{ hostvars[host].nomad_node_id.content | b64decode }}",
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"address": "{{ hostvars[host].ansible_default_ipv4.address }}:4647",
"non_voter": false
}{% if not loop.last %},{% endif %}
{% endfor -%}
]
become: true
- name: Restart Nomad
systemd:
name: nomad
state: restarted
become: true