node_exporter: Run textfile collectors every 10min

roles/node_exporter/files/node-exporter-run-textfile-collector.sh

@@ -0,0 +1,21 @@
+#!/bin/sh
+
+set -eu
+
+umask 022
+
+if [ "$(uname -s)" = "OpenBSD" ]; then
+    OUTDIR="/var/db/node-exporter"
+else
+    OUTDIR="/var/lib/prometheus/node-exporter"
+fi
+
+for script in /usr/local/libexec/node-exporter/*; do
+    [ -x "$script" ] || continue
+    target="${OUTDIR}/$(basename "$script")"
+    if "$script" > "${target}.tmp" ; then
+        mv "${target}.tmp" "${target}.prom"
+    else
+        rm -f "${target}.tmp"
+    fi
+done

roles/node_exporter/tasks/main.yml

@@ -40,6 +40,28 @@
     group: _nodeexporter
   when: ansible_os_family == "OpenBSD"
 
+- name: Create directory for textfile collector scripts
+  ansible.builtin.file:
+    path: /usr/local/libexec/node-exporter
+    state: directory
+    mode: 0755
+    owner: root
+    group: "{{ ansible_wheel }}"
+
+- name: Add script for running textfile collector scripts
+  ansible.builtin.copy:
+    dest: /usr/local/sbin/node-exporter-run-textfile-collector
+    src: node-exporter-run-textfile-collector.sh
+    mode: 0755
+    owner: root
+    group: "{{ ansible_wheel }}"
+
+- name: Add cron job for running textfile collector scripts
+  ansible.builtin.cron:
+    name: node-exporter-run-textfile-collector
+    job: /usr/local/sbin/node-exporter-run-textfile-collector
+    minute: "*/10"
+
 - name: Modify config
   ansible.builtin.lineinfile:
     path: /etc/default/prometheus-node-exporter