add prometheus exporter

This commit is contained in:
luxifer 2022-11-15 16:45:24 +00:00
parent 5887eb9816
commit 40cd0127dc
2 changed files with 270 additions and 1 deletions

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@ -38,10 +38,13 @@ Of the 3 groups below, the grpc scripts are really the only ones being actively
### The grpc scripts
This set of scripts includes `dish_grpc_text.py`, `dish_grpc_influx.py`, `dish_grpc_influx2.py`, `dish_grpc_sqlite.py`, and `dish_grpc_mqtt.py`. They mostly support the same functionality, but write their output in different ways. `dish_grpc_text.py` writes data to standard output, `dish_grpc_influx.py` and `dish_grpc_influx2.py` send it to an InfluxDB 1.x and 2.x server, respectively, `dish_grpc_sqlite.py` writes it to a sqlite database, and `dish_grpc_mqtt.py` sends it to a MQTT broker.
This set of scripts includes `dish_grpc_text.py`, `dish_grpc_influx.py`, `dish_grpc_influx2.py`, `dish_grpc_sqlite.py`, `dish_grpc_mqtt.py`, and `dish_grpc_prometheus.py`. They mostly support the same functionality, but write their output in different ways. `dish_grpc_text.py` writes data to standard output, `dish_grpc_influx.py` and `dish_grpc_influx2.py` send it to an InfluxDB 1.x and 2.x server, respectively, `dish_grpc_sqlite.py` writes it to a sqlite database, and `dish_grpc_mqtt.py` sends it to a MQTT broker. `dish_grpc_prometheus.py` does not write anywhere but will listen for HTTP requests and
return data in a format Prometheus can scrape.
All these scripts support processing status data and/or history data in various modes. The status data is mostly what appears related to the dish in the Debug Data section of the Starlink app, whereas most of the data displayed in the Statistics page of the Starlink app comes from the history data. Specific status or history data groups can be selected by including their mode names on the command line. Run the scripts with `-h` command line option to get a list of available modes. See the documentation at the top of `starlink_grpc.py` for detail on what each of the fields means within each mode group.
`dish_grpc_prometheus.py` has only been tested with the modes `status`, `usage`, and `alert_detail`.
For example, data from all the currently available status groups can be output by doing:
```shell script
python3 dish_grpc_text.py status obstruction_detail alert_detail

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dish_grpc_prometheus.py Normal file
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@ -0,0 +1,266 @@
#!/usr/bin/python3
"""Prometheus exporter for Starlink user terminal data info.
This script pulls the current status info and/or metrics computed from the
history data and makes it available via HTTP in the format Prometeus expects.
"""
import logging
import sys
from http import HTTPStatus
from http.server import BaseHTTPRequestHandler, ThreadingHTTPServer
import dish_common
class MetricInfo:
unit = ""
kind = "gauge"
help = ""
def __init__(self, unit=None, kind=None, help=None) -> None:
if unit:
self.unit = f"_{unit}"
if kind:
self.kind = kind
if help:
self.help = help
pass
METRICS_INFO = {
"status_uptime": MetricInfo(unit="seconds", kind="counter"),
"status_snr": MetricInfo(),
"status_seconds_to_first_nonempty_slot": MetricInfo(),
"status_pop_ping_drop_rate": MetricInfo(),
"status_downlink_throughput_bps": MetricInfo(),
"status_uplink_throughput_bps": MetricInfo(),
"status_pop_ping_latency_ms": MetricInfo(),
"status_alerts": MetricInfo(),
"status_fraction_obstructed": MetricInfo(),
"status_currently_obstructed": MetricInfo(),
"status_seconds_obstructed": MetricInfo(),
"status_obstruction_duration": MetricInfo(),
"status_obstruction_interval": MetricInfo(),
"status_direction_azimuth": MetricInfo(),
"status_direction_elevation": MetricInfo(),
"status_is_snr_above_noise_floor": MetricInfo(),
"status_alert_motors_stuck": MetricInfo(),
"status_alert_thermal_throttle": MetricInfo(),
"status_alert_thermal_shutdown": MetricInfo(),
"status_alert_mast_not_near_vertical": MetricInfo(),
"status_alert_unexpected_location": MetricInfo(),
"status_alert_slow_ethernet_speeds": MetricInfo(),
"status_alert_roaming": MetricInfo(),
"status_alert_install_pending": MetricInfo(),
"status_alert_is_heating": MetricInfo(),
"status_alert_power_supply_thermal_throttle": MetricInfo(),
"ping_stats_samples": MetricInfo(kind="counter"),
"ping_stats_end_counter": MetricInfo(kind="counter"),
"usage_download_usage": MetricInfo(unit="bytes", kind="counter"),
"usage_upload_usage": MetricInfo(unit="bytes", kind="counter"),
}
STATE_VALUES = [
"UNKNOWN",
"CONNECTED",
"BOOTING",
"SEARCHING",
"STOWED",
"THERMAL_SHUTDOWN",
"NO_SATS",
"OBSTRUCTED",
"NO_DOWNLINK",
"NO_PINGS",
"DISH_UNREACHABLE",
]
class Metric:
name = ""
timestamp = ""
kind = None
help = None
values = None
def __init__(self, name, timestamp, kind="gauge", help="", values=None):
self.name = name
self.timestamp = timestamp
self.kind = kind
self.help = help
if values:
self.values = values
else:
self.values = []
pass
def __str__(self):
if not self.values:
return ""
lines = []
lines.append(f"# HELP {self.name} {self.help}")
lines.append(f"# TYPE {self.name} {self.kind}")
for value in self.values:
lines.append(f"{self.name}{value} {self.timestamp*1000}")
lines.append("")
return str.join("\n", lines)
class MetricValue:
value = 0
labels = None
def __init__(self, value, labels=None) -> None:
self.value = value
self.labels = labels
def __str__(self):
label_str = ""
if self.labels:
label_str = (
"{"
+ str.join(",", [f'{v[0]}="{v[1]}"' for v in self.labels.items()])
+ "}"
)
return f"{label_str} {self.value}"
opts = None
gstate = None
def parse_args():
global opts
parser = dish_common.create_arg_parser(
output_description="Prometheus exporter", bulk_history=False
)
group = parser.add_argument_group(title="HTTP server options")
group.add_argument("--address", default="0.0.0.0", help="IP address to listen on")
group.add_argument("--port", default=8080, type=int, help="Port to listen on")
opts = dish_common.run_arg_parser(parser)
def prometheus_export():
global opts, gstate
raw_data = {}
def data_add_item(name, value, category):
raw_data[category + "_" + name] = value
pass
def data_add_sequencem(name, value, category, start):
raise NotImplementedError("Did not expect sequence data")
rc, status_ts, hist_ts = dish_common.get_data(
opts, gstate, data_add_item, data_add_sequencem
)
metrics = []
metrics.append(
Metric(
name="starlink_status_state",
timestamp=status_ts,
values=[
MetricValue(
value=int(raw_data["status_state"] == state_value),
labels={"state": state_value},
)
for state_value in STATE_VALUES
],
)
)
del raw_data["status_state"]
info_metrics = ["status_id", "status_hardware_version", "status_software_version"]
metrics_not_found = []
metrics_not_found.extend([x for x in info_metrics if x not in raw_data])
if len(metrics_not_found) < len(info_metrics):
metrics.append(
Metric(
name="starlink_info",
timestamp=status_ts,
values=[
MetricValue(
value=1,
labels={
x.replace("status_", ""): raw_data.pop(x)
for x in info_metrics
if x in raw_data
},
)
],
)
)
for name, metric_info in METRICS_INFO.items():
if name in raw_data:
metrics.append(
Metric(
name=f"starlink_{name}{metric_info.unit}",
timestamp=status_ts,
kind=metric_info.kind,
values=[MetricValue(value=float(raw_data.pop(name) or 0))],
)
)
else:
metrics_not_found.append(name)
metrics.append(
Metric(
name="starlink_exporter_unprocessed_metrics",
timestamp=status_ts,
values=[MetricValue(value=1, labels={"metric": name}) for name in raw_data],
)
)
metrics.append(
Metric(
name="starlink_exporter_missing_metrics",
timestamp=status_ts,
values=[
MetricValue(
value=1,
labels={"metric": name},
)
for name in metrics_not_found
],
)
)
return str.join("\n", [str(metric) for metric in metrics])
class MetricsRequestHandler(BaseHTTPRequestHandler):
def do_GET(self):
content = prometheus_export()
self.send_response(HTTPStatus.OK)
self.send_header("Content-type", "text/plain")
self.send_header("Content-Length", len(content))
self.end_headers()
self.wfile.write(content.encode())
def main():
global opts, gstate
parse_args()
logging.basicConfig(format="%(levelname)s: %(message)s", stream=sys.stderr)
gstate = dish_common.GlobalState(target=opts.target)
httpd = ThreadingHTTPServer((opts.address, opts.port), MetricsRequestHandler)
httpd.serve_forever()
sys.exit()
if __name__ == "__main__":
main()