Harwinder Sekhon
83 lines
2.7 KiB
YAML
83 lines
2.7 KiB
YAML
---
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# Verifies the critical services listed per host in the inventory
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# (critical_services) and optionally starts any that are stopped.
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#
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# Extra vars (optional):
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# restart_stopped - default false; when true, start services found stopped
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- name: Check Host Availability
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hosts: ubuntu:rocky
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gather_facts: false
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ignore_unreachable: true
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tasks:
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- name: Ping hosts to check availability
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ansible.builtin.ping:
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register: ping_result
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ignore_errors: true
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ignore_unreachable: true
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- name: Add reachable hosts to group
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ansible.builtin.group_by:
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key: reachable_hosts
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when: ping_result is succeeded
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- name: Report offline hosts
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ansible.builtin.debug:
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msg: "{{ inventory_hostname }} - OFFLINE"
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when: ping_result is not succeeded
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delegate_to: localhost
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- name: Service Check
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hosts: reachable_hosts
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become: true
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gather_facts: false
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vars:
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restart_stopped: false
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tasks:
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- name: Gather service facts
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ansible.builtin.service_facts:
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- name: Evaluate critical services
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ansible.builtin.set_fact:
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service_states: >-
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{{ service_states | default([])
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+ [{'name': item, 'state': (ansible_facts.services[item ~ '.service'].state | default('not-found'))}] }}
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loop: "{{ critical_services | default([]) }}"
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- name: Print report
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ansible.builtin.debug:
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msg: |
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======================================================
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HOST: {{ inventory_hostname }} ({{ ansible_host }})
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======================================================
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{% if service_states | default([]) | length == 0 %}
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no critical services defined in inventory
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{% else %}
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{% for svc in service_states %}
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{{ '%-24s' | format(svc.name) }} {{ 'RUNNING' if svc.state == 'running' else ('NOT FOUND' if svc.state == 'not-found' else svc.state | upper) }}
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{% endfor %}
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{% endif %}
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======================================================
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- name: Warn on services that are not running
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ansible.builtin.debug:
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msg: "WARNING: {{ item.name }} is {{ 'not installed' if item.state == 'not-found' else item.state }} on {{ inventory_hostname }}"
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loop: "{{ service_states | default([]) }}"
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loop_control:
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label: "{{ item.name }}"
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when: item.state != 'running'
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- name: Start stopped services
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ansible.builtin.service:
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name: "{{ item.name }}"
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state: started
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loop: "{{ service_states | default([]) }}"
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loop_control:
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label: "{{ item.name }}"
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when:
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- restart_stopped | bool
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- item.state not in ['running', 'not-found']
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