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path: root/roles/monitoring/prometheus/exporter/snmp/tasks/main.yml
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---
- name: generate apt pin file for exporter-snmp package
  when: prometheus_exporter_snmp_version is defined
  copy:
    dest: "/etc/apt/preferences.d/prom-exporter-snmp.pref"
    content: |
      Package: prom-exporter-snmp
      Pin: version {{ prometheus_exporter_snmp_version }}-1
      Pin-Priority: 1001

- name: remove apt pin file for exporter-snmp package
  when: prometheus_exporter_snmp_version is not defined
  file:
    path: "/etc/apt/preferences.d/prom-exporter-snmp.pref"
    state: absent

- name: install apt packages
  apt:
    name: "prom-exporter-snmp{% if prometheus_exporter_snmp_version is defined %}={{ prometheus_exporter_snmp_version }}-1{% endif %}"
    state: present
    allow_downgrade: yes
  notify: restart prometheus-snmp-exporter

- name: overwrite default configuration
  when: prometheus_exporter_snmp_config_default is defined
  copy:
    content: |
      # Ansible managed

      {{ prometheus_exporter_snmp_config_default | to_nice_yaml(indent=2) }}
    dest: /etc/prometheus/exporter/snmp/config-default.yml
  notify: reload prometheus-snmp-exporter

- name: generate extra configuration
  when: prometheus_exporter_snmp_config_extra is defined
  copy:
    content: |
      # Ansible managed

      {{ prometheus_exporter_snmp_config_extra | to_nice_yaml(indent=2) }}
    dest: /etc/prometheus/exporter/snmp/config-extra.yml
  notify: reload prometheus-snmp-exporter

- name: generate systemd service unit
  template:
    src: service.j2
    dest: /etc/systemd/system/prometheus-snmp-exporter.service
  notify: restart prometheus-snmp-exporter

- name: make sure prometheus-snmp-exporter is enabled and started
  systemd:
    name: prometheus-snmp-exporter.service
    daemon_reload: yes
    state: started
    enabled: yes

- name: register exporter
  copy:
    content: |
      location = /snmp {
          proxy_pass http://127.0.0.1:9116/metrics;
      }
      location = /snmp/probe {
          proxy_pass http://127.0.0.1:9116/snmp;
      }
    dest: /etc/prometheus/exporter/snmp.locations
  notify: reload nginx