trs/wip/prometheus-systemd-collector

backoffice.yaml

@@ -33,6 +33,11 @@
         name: prometheus
         state: reloaded
 
+    - name: prometheus-node-exporter is restarted
+      service:
+        name: prometheus-node-exporter
+        state: restarted
+
     - name: promtail is restarted
       service:
         name: promtail

tasks/prometheus.yaml

@@ -48,6 +48,19 @@
   notify:
     - prometheus is reloaded
 
+- name: prometheus-node-exporter invocation is configured
+  replace:
+    path: /etc/default/prometheus-node-exporter
+    regexp: '(?ms)^ARGS=".+?"$'
+    replace: |-
+      ARGS="--collector.diskstats.ignored-devices=^(ram|loop|fd|(h|s|v|xv)d[a-z]|nvme\\d+n\\d+p)\\d+$ \
+            --collector.filesystem.ignored-mount-points=^/(sys|proc|dev|run)($|/) \
+            --collector.netdev.ignored-devices=^lo$ \
+            --collector.textfile.directory=/var/lib/prometheus/node-exporter \
+            --collector.systemd"
+  notify:
+    - prometheus-node-exporter is restarted
+
 - name: prometheus-textfile group exists
   group:
     name: prometheus-textfile