Added text collector conversion for ipmitool output. (#746)

* Added text collector conversion for ipmitool output.

* Sort metrics before exporting, add namespace.

* Added HELP string, tidy up a bit.

* Make status a gauge.

1 files changed, 89 insertions, 0 deletions

diff --git a/text_collector_examples/ipmitool b/text_collector_examples/ipmitool
new file mode 100755
index 0000000..bb38c91
--- /dev/null
+++ b/text_collector_examples/ipmitool
@@ -0,0 +1,89 @@
+#!/usr/bin/awk -nf
+
+#
+# Converts output of `ipmitool sensor` to prometheus format.
+#
+# With GNU awk:
+#   ipmitool sensor | ./ipmitool > ipmitool.prom
+#
+# With BSD awk:
+#   ipmitool sensor | awk -f ./ipmitool > ipmitool.prom
+#
+
+function export(values, name) {
+        if (values["metric_count"] < 1) {
+                return
+        }
+        delete values["metric_count"]
+
+        printf("# HELP %s%s %s sensor reading from ipmitool\n", namespace, name, help[name]);
+        printf("# TYPE %s%s gauge\n", namespace, name);
+        for (sensor in values) {
+                printf("%s%s{sensor=\"%s\"} %f\n", namespace, name, sensor, values[sensor]);
+        }
+}
+
+# Fields are Bar separated, with space padding.
+BEGIN {
+        FS = "[ ]*[|][ ]*";
+        namespace = "node_ipmi_";
+
+        # Friendly description of the type of sensor for HELP.
+        help["temperature_celcius"] = "Temperature";
+        help["volts"] = "Voltage";
+        help["power_watts"] = "Power";
+        help["speed_rpm"] = "Fan";
+        help["status"] = "Chassis status";
+
+        temperature_celcius["metric_count"] = 0;
+        volts["metric_count"] = 0;
+        power_watts["metric_count"] = 0;
+        speed_rpm["metric_count"] = 0;
+        status["metric_count"] = 0;
+}
+
+# Not a valid line.
+{
+        if (NF < 3) {
+                next
+        }
+}
+
+# $2 is value field.
+$2 ~ /na/ {
+        next
+}
+
+# $3 is type field.
+$3 ~ /degrees C/ {
+        temperature_celcius[$1] = $2;
+        temperature_celcius["metric_count"]++;
+}
+
+$3 ~ /Volts/ {
+        volts[$1] = $2;
+        volts["metric_count"]++;
+}
+
+$3 ~ /Watts/ {
+        power_watts[$1] = $2;
+        power_watts["metric_count"]++;
+}
+
+$3 ~ /RPM/ {
+        speed_rpm[$1] = $2;
+        speed_rpm["metric_count"]++;
+}
+
+$3 ~ /discrete/ {
+        status[$1] = $2;
+        status["metric_count"]++;
+}
+
+END {
+        export(temperature_celcius, "temperature_celcius");
+        export(volts, "volts");
+        export(power_watts, "power_watts");
+        export(speed_rpm, "speed_rpm");
+        export(status, "status");
+}