sensor data to prometheus metrics

This commit is contained in:
lucs7 2020-12-16 23:39:33 +01:00
parent 47b99764ea
commit 3d6dd8ff87

View File

@ -22,17 +22,74 @@
* Prometheus support
\*********************************************************************************************/
#define XSNS_75 75
#define XSNS_75 75
const char *UnitfromType(const char *type)
{
if (strcmp(type, "time") == 0)
{
return "_seconds";
}
if (strcmp(type, "temperature") == 0 || strcmp(type, "dewpoint") == 0)
{
return "_celsius";
}
if (strcmp(type, "pressure") == 0)
{
return "_hpa";
}
if (strcmp(type, "voltage") == 0)
{
return "_volts";
}
if (strcmp(type, "current") == 0)
{
return "_amperes";
}
if (strcmp(type, "mass") == 0)
{
return "_grams";
}
if (strcmp(type, "carbondioxide") == 0)
{
return "_ppm";
}
if (strcmp(type, "humidity") == 0)
{
return "_percentage";
}
return "";
}
const char *FormatMetricName(const char *metric)
{
char *formated = (char *)malloc(strlen(metric) + 1);
uint32_t cnt = 0;
for (cnt; cnt < strlen(metric) + 1; cnt++)
{
if (metric[cnt] == ' ')
{ //replace space with
formated[cnt] = '_';
}
else
{
formated[cnt] = tolower(metric[cnt]);
}
}
return formated;
}
void HandleMetrics(void)
{
if (!HttpCheckPriviledgedAccess()) { return; }
if (!HttpCheckPriviledgedAccess())
{
return;
}
AddLog_P(LOG_LEVEL_DEBUG, PSTR(D_LOG_HTTP "Prometheus"));
WSContentBegin(200, CT_PLAIN);
char parameter[FLOATSZ];
// Pseudo-metric providing metadata about the running firmware version.
@ -42,22 +99,24 @@ void HandleMetrics(void)
WSContentSend_P(PSTR("# TYPE tasmota_boot_count counter\ntasmota_boot_count %d\n"), Settings.bootcount);
WSContentSend_P(PSTR("# TYPE tasmota_flash_writes_total counter\ntasmota_flash_writes_total %d\n"), Settings.save_flag);
// Pseudo-metric providing metadata about the WiFi station.
WSContentSend_P(PSTR("# TYPE tasmota_wifi_station_info gauge\ntasmota_wifi_station_info{bssid=\"%s\",ssid=\"%s\"} 1\n"), WiFi.BSSIDstr().c_str(), WiFi.SSID().c_str());
// Wi-Fi Signal strength
WSContentSend_P(PSTR("# TYPE tasmota_wifi_station_signal_dbm gauge\ntasmota_wifi_station_signal_dbm{mac_address=\"%s\"} %d\n"), WiFi.BSSIDstr().c_str(), WiFi.RSSI());
if (!isnan(TasmotaGlobal.temperature_celsius)) {
if (!isnan(TasmotaGlobal.temperature_celsius))
{
dtostrfd(TasmotaGlobal.temperature_celsius, Settings.flag2.temperature_resolution, parameter);
WSContentSend_P(PSTR("# TYPE tasmotaglobal_temperature_celsius gauge\ntasmotaglobal_temperature_celsius %s\n"), parameter);
}
if (TasmotaGlobal.humidity != 0) {
if (TasmotaGlobal.humidity != 0)
{
dtostrfd(TasmotaGlobal.humidity, Settings.flag2.humidity_resolution, parameter);
WSContentSend_P(PSTR("# TYPE tasmotaglobal_humidity gauge\ntasmotaglobal_humidity %s\n"), parameter);
}
if (TasmotaGlobal.pressure_hpa != 0) {
if (TasmotaGlobal.pressure_hpa != 0)
{
dtostrfd(TasmotaGlobal.pressure_hpa, Settings.flag2.pressure_resolution, parameter);
WSContentSend_P(PSTR("# TYPE tasmotaglobal_pressure_hpa gauge\ntasmotaglobal_pressure_hpa %s\n"), parameter);
}
@ -75,24 +134,69 @@ void HandleMetrics(void)
WSContentSend_P(PSTR("# TYPE energy_power_kilowatts_total counter\nenergy_power_kilowatts_total %s\n"), parameter);
#endif
for (uint32_t device = 0; device < TasmotaGlobal.devices_present; device++) {
for (uint32_t device = 0; device < TasmotaGlobal.devices_present; device++)
{
power_t mask = 1 << device;
WSContentSend_P(PSTR("# TYPE relay%d_state gauge\nrelay%d_state %d\n"), device+1, device+1, (TasmotaGlobal.power & mask));
WSContentSend_P(PSTR("# TYPE relay%d_state gauge\nrelay%d_state %d\n"), device + 1, device + 1, (TasmotaGlobal.power & mask));
}
/*
// Alternative method using the complete sensor JSON data
// For prometheus it may need to be decoded to # TYPE messages
ResponseClear();
MqttShowSensor();
char json[strlen(TasmotaGlobal.mqtt_data) +1];
char json[strlen(TasmotaGlobal.mqtt_data) + 1];
snprintf_P(json, sizeof(json), TasmotaGlobal.mqtt_data);
// Do your Prometheus specific processing here.
// Look at function DisplayAnalyzeJson() in file xdrv_13_display.ino as an example how to decode the JSON message
WSContentSend_P(json);
*/
String jsonStr = json;
JsonParser parser((char *)jsonStr.c_str());
JsonParserObject root = parser.getRootObject();
if (root)
{ // did JSON parsing went ok?
for (auto key1 : root)
{
JsonParserToken value1 = key1.getValue();
if (value1.isObject())
{
JsonParserObject Object2 = value1.getObject();
for (auto key2 : Object2)
{
JsonParserToken value2 = key2.getValue();
if (value2.isObject())
{
JsonParserObject Object3 = value2.getObject();
for (auto key3 : Object3)
{
const char *value = key3.getValue().getStr(nullptr);
if (value != nullptr && isdigit(value[0]))
{
const char *sensor = FormatMetricName(key2.getStr()); //cleanup sensor name
const char *type = FormatMetricName(key3.getStr()); //cleanup sensor type
const char *unit = UnitfromType(type); //grab base unit corresponding to type
WSContentSend_P(PSTR("# TYPE tasmota_sensors_%s%s gauge\ntasmota_sensors_%s%s{sensor=\"%s\"} %s\n"), type, unit, type, unit, sensor, value); //build metric as "# TYPE tasmota_sensors_%type%_%unit% gauge\ntasmotasensors_%type%_%unit%{sensor=%sensor%"} %value%""
}
}
}
else
{
const char *value = value2.getStr(nullptr);
if (value != nullptr && isdigit(value[0]))
{
const char *sensor = FormatMetricName(key1.getStr());
const char *type = FormatMetricName(key2.getStr());
const char *unit = UnitfromType(type);
WSContentSend_P(PSTR("# TYPE tasmota_sensors_%s%s gauge\ntasmota_sensors_%s%s{sensor=\"%s\"} %s\n"), type, unit, type, unit, sensor, value);
}
}
}
}
else
{
const char *value = value1.getStr(nullptr);
if (value != nullptr && isdigit(value[0] && strcmp(key1.getStr(), "Time") != 0))
{ //remove false 'time' metric
const char *sensor = FormatMetricName(key1.getStr());
WSContentSend_P(PSTR("# TYPE tasmota_sensors_%s gauge\ntasmota_sensors{sensor=\"%s\"} %s\n"), sensor, sensor, value);
}
}
}
}
WSContentEnd();
}
@ -105,12 +209,13 @@ bool Xsns75(uint8_t function)
{
bool result = false;
switch (function) {
case FUNC_WEB_ADD_HANDLER:
WebServer_on(PSTR("/metrics"), HandleMetrics);
break;
switch (function)
{
case FUNC_WEB_ADD_HANDLER:
WebServer_on(PSTR("/metrics"), HandleMetrics);
break;
}
return result;
}
#endif // USE_PROMETHEUS
#endif // USE_PROMETHEUS