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