diff options
Diffstat (limited to 'roles/monitoring/prometheus/exporter/snmp')
5 files changed, 121 insertions, 0 deletions
diff --git a/roles/monitoring/prometheus/exporter/snmp/defaults/main.yml b/roles/monitoring/prometheus/exporter/snmp/defaults/main.yml new file mode 100644 index 00000000..a8c67a23 --- /dev/null +++ b/roles/monitoring/prometheus/exporter/snmp/defaults/main.yml @@ -0,0 +1,8 @@ +--- +# prometheus_exporter_snmp_version: + +## the default config will be replaced with this +# prometheus_exporter_snmp_config: + +## this extends the default config +# prometheus_exporter_snmp_config_extra: diff --git a/roles/monitoring/prometheus/exporter/snmp/handlers/main.yml b/roles/monitoring/prometheus/exporter/snmp/handlers/main.yml new file mode 100644 index 00000000..f6059aa6 --- /dev/null +++ b/roles/monitoring/prometheus/exporter/snmp/handlers/main.yml @@ -0,0 +1,15 @@ +--- +- name: restart prometheus-snmp-exporter + service: + name: prometheus-snmp-exporter + state: restarted + +- name: reload prometheus-snmp-exporter + service: + name: prometheus-snmp-exporter + state: reloaded + +- name: reload nginx + service: + name: nginx + state: reloaded diff --git a/roles/monitoring/prometheus/exporter/snmp/tasks/main.yml b/roles/monitoring/prometheus/exporter/snmp/tasks/main.yml new file mode 100644 index 00000000..8fc93f0b --- /dev/null +++ b/roles/monitoring/prometheus/exporter/snmp/tasks/main.yml @@ -0,0 +1,64 @@ +--- +- 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: generate configuration + when: prometheus_exporter_snmp_config is defined + template: + src: config.yml.j2 + dest: /etc/prometheus/exporter/snmp/config.yml + notify: reload prometheus-snmp-exporter + +- name: extend the default configuration + when: + - prometheus_exporter_snmp_config is not defined + - prometheus_exporter_snmp_config_extra is defined + blockinfile: + path: /etc/prometheus/exporter/snmp/config.yml + block: | + {{ prometheus_exporter_snmp_config_extra | to_nice_yaml(indent=2) }} + 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 diff --git a/roles/monitoring/prometheus/exporter/snmp/templates/config.yml.j2 b/roles/monitoring/prometheus/exporter/snmp/templates/config.yml.j2 new file mode 100644 index 00000000..c75b8469 --- /dev/null +++ b/roles/monitoring/prometheus/exporter/snmp/templates/config.yml.j2 @@ -0,0 +1,3 @@ +# {{ ansible_managed }} + +{{ prometheus_exporter_snmp_config | combine(prometheus_exporter_snmp_config_extra | default({})) | to_nice_yaml(indent=2) }} diff --git a/roles/monitoring/prometheus/exporter/snmp/templates/service.j2 b/roles/monitoring/prometheus/exporter/snmp/templates/service.j2 new file mode 100644 index 00000000..7fccb2da --- /dev/null +++ b/roles/monitoring/prometheus/exporter/snmp/templates/service.j2 @@ -0,0 +1,31 @@ +[Unit] +Description=Prometheus snmp exporter + +[Service] +Restart=always +User=prometheus-exporter +ExecStart=/usr/bin/prometheus-snmp-exporter --web.listen-address="127.0.0.1:9116" --config.file=/etc/prometheus/exporter/snmp/config.yml +ExecReload=/bin/kill -HUP $MAINPID + +# systemd hardening-options +AmbientCapabilities= +CapabilityBoundingSet= +DeviceAllow=/dev/null rw +DevicePolicy=strict +LockPersonality=true +MemoryDenyWriteExecute=true +NoNewPrivileges=true +PrivateDevices=true +PrivateTmp=true +ProtectControlGroups=true +ProtectHome=true +ProtectKernelModules=true +ProtectKernelTunables=true +ProtectSystem=strict +RemoveIPC=true +RestrictNamespaces=true +RestrictRealtime=true +SystemCallArchitectures=native + +[Install] +WantedBy=multi-user.target |