add nut aka UPS to prometheus monitoring

6 files changed, 73 insertions, 2 deletions

diff --git a/roles/monitoring/prometheus/exporter/blackbox/tasks/main.yml b/roles/monitoring/prometheus/exporter/blackbox/tasks/main.yml
index 3b8e997d..7ecd8113 100644
--- a/roles/monitoring/prometheus/exporter/blackbox/tasks/main.yml
+++ b/roles/monitoring/prometheus/exporter/blackbox/tasks/main.yml
@@ -21,7 +21,7 @@
     dest: /etc/systemd/system/prometheus-blackbox-exporter.service
   notify: restart prometheus-blackbox-exporter
 
-- name: make sure prometheus-exporter-exporter is enabled and started
+- name: make sure prometheus-blackbox-exporter is enabled and started
   systemd:
     name: prometheus-blackbox-exporter.service
     daemon_reload: yes
diff --git a/roles/monitoring/prometheus/exporter/meta/main.yml b/roles/monitoring/prometheus/exporter/meta/main.yml
index d1d3eac7..01e3f7f2 100644
--- a/roles/monitoring/prometheus/exporter/meta/main.yml
+++ b/roles/monitoring/prometheus/exporter/meta/main.yml
@@ -5,3 +5,5 @@ dependencies:
     when: "'node' in (prometheus_exporters_default | union(prometheus_exporters_extra))"
   - role: monitoring/prometheus/exporter/blackbox
     when: "'blackbox' in (prometheus_exporters_default | union(prometheus_exporters_extra))"
+  - role: monitoring/prometheus/exporter/nut
+    when: "'nut' in (prometheus_exporters_default | union(prometheus_exporters_extra))"
diff --git a/roles/monitoring/prometheus/exporter/node/tasks/main.yml b/roles/monitoring/prometheus/exporter/node/tasks/main.yml
index c8756acf..8392e580 100644
--- a/roles/monitoring/prometheus/exporter/node/tasks/main.yml
+++ b/roles/monitoring/prometheus/exporter/node/tasks/main.yml
@@ -15,7 +15,7 @@
     dest: /etc/systemd/system/prometheus-node-exporter.service
   notify: restart prometheus-node-exporter
 
-- name: make sure prometheus-exporter-exporter is enabled and started
+- name: make sure prometheus-node-exporter is enabled and started
   systemd:
     name: prometheus-node-exporter.service
     daemon_reload: yes
diff --git a/roles/monitoring/prometheus/exporter/nut/handlers/main.yml b/roles/monitoring/prometheus/exporter/nut/handlers/main.yml
new file mode 100644
index 00000000..6e10f43b
--- /dev/null
+++ b/roles/monitoring/prometheus/exporter/nut/handlers/main.yml
@@ -0,0 +1,11 @@
+---
+- name: restart prometheus-nut-exporter
+  service:
+    name: prometheus-nut-exporter
+    state: restarted
+
+- name: reload prometheus-exporter-exporter
+  service:
+    name: prometheus-exporter-exporter
+    ## TODO: implement reload once exporter_exporter supports this...
+    state: restarted
diff --git a/roles/monitoring/prometheus/exporter/nut/tasks/main.yml b/roles/monitoring/prometheus/exporter/nut/tasks/main.yml
new file mode 100644
index 00000000..519ac7a0
--- /dev/null
+++ b/roles/monitoring/prometheus/exporter/nut/tasks/main.yml
@@ -0,0 +1,28 @@
+---
+- name: install apt packages
+  apt:
+    name: prom-exporter-nut
+    state: present
+
+- name: generate systemd service unit
+  template:
+    src: service.j2
+    dest: /etc/systemd/system/prometheus-nut-exporter.service
+  notify: restart prometheus-nut-exporter
+
+- name: make sure prometheus-nut-exporter is enabled and started
+  systemd:
+    name: prometheus-nut-exporter.service
+    daemon_reload: yes
+    state: started
+    enabled: yes
+
+- name: register exporter
+  copy:
+    content: |
+      method: http
+      http:
+        port: 9199
+        path: /ups_metrics
+    dest: /etc/prometheus/exporter/enabled/nut.yml
+  notify: reload prometheus-exporter-exporter
diff --git a/roles/monitoring/prometheus/exporter/nut/templates/service.j2 b/roles/monitoring/prometheus/exporter/nut/templates/service.j2
new file mode 100644
index 00000000..ffafcb3c
--- /dev/null
+++ b/roles/monitoring/prometheus/exporter/nut/templates/service.j2
@@ -0,0 +1,30 @@
+[Unit]
+Description=Prometheus nut exporter
+
+[Service]
+Restart=always
+User=prometheus-exporter
+ExecStart=/usr/bin/prometheus-nut-exporter --web.listen-address="127.0.0.1:9199"
+
+# 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