monitoring: expose jetson scrape line length

services/monitoring/jetson-tegrastats-exporter.yaml

@@ -17,7 +17,7 @@ spec:
       annotations:
         prometheus.io/scrape: "true"
         prometheus.io/port: "9100"
-        monitoring.bstein.dev/restart-rev: "5"
+        monitoring.bstein.dev/restart-rev: "6"
     spec:
       serviceAccountName: default
       hostPID: true

services/monitoring/scripts/jetson_tegrastats_exporter.py

@@ -14,6 +14,7 @@ BASE_METRICS = {
     "ram_used_mb": 0.0,
     "ram_total_mb": 0.0,
     "power_5v_in_mw": 0.0,
+    "log_line_len": 0.0,
     "last_scrape_ts": 0.0,
 }
 
@@ -33,7 +34,7 @@ def parse_line(line: str) -> dict:
     if m:
         updates["ram_used_mb"] = float(m.group(1))
         updates["ram_total_mb"] = float(m.group(2))
-    m = re.search(r"(?:POM_5V_IN|VDD_IN)\\s+(\\d+)/(\\d+)", line)
+    m = re.search(r"(?:POM_5V_IN|VDD_IN)\\s+(\\d+)(?:mW)?/(\\d+)(?:mW)?", line)
     if m:
         updates["power_5v_in_mw"] = float(m.group(1))
     return updates
@@ -66,6 +67,7 @@ class Handler(http.server.BaseHTTPRequestHandler):
         line = read_latest_line()
         if line:
             metrics.update(parse_line(line))
+            metrics["log_line_len"] = float(len(line))
         metrics["last_scrape_ts"] = time()
         out = []
         label = f'{{node="{NODE_NAME}"}}'