config graphs to show

generate_graphs.py

@@ -13,6 +13,10 @@ import subprocess
 PERIODS = {"3hours": "3h", "1day": "1d", "2weeks": "2w", "1year": "1y"}
 COLORS = ["#2563EB", "#DC2626", "#16A34A", "#9333EA"]
 LOAD_COLORS = ["#FACC15", "#F59E0B", "#DC2626"]  # bottom to top
+DEFAULT_GRAPHS = (
+    "load", "cpu", "thermal", "trouble", "network", "disk",
+    "storage-health", "uptime",
+)
 
 
 def graph(output: Path, rrd: Path, start: str, title: str, unit: str,
@@ -107,7 +111,7 @@ def main() -> None:
     mounts = [item.strip() for item in config["mountpoints"].split(",") if item.strip()]
     if not mounts or mounts[0] != "/":
         mounts.insert(0, "/")
-    definitions = [
+    all_definitions = [
         ("load", "Processor load", "load", [("load15", "15 minutes", "AVERAGE"), ("load5", "5 minutes", "AVERAGE"), ("load1", "1 minute", "AVERAGE")], False, True, False, False, False, False),
         ("cpu", "CPU usage", "%", [("cpu_user", "user", "AVERAGE"), ("cpu_system", "system", "AVERAGE"), ("cpu_nice", "nice", "AVERAGE"), ("io_wait", "I/O wait", "AVERAGE")], False, True, False, False, False, False),
         ("thermal", "CPU temperature and throttling", "°C", [("temperature", "temperature", "AVERAGE"), ("throttled", "throttled", "MAX")], False, False, False, False, True, False),
@@ -117,6 +121,23 @@ def main() -> None:
         ("storage-health", "Storage operational health", "0–10", [(f"health_{'root' if i == 0 else i}", mount, "MIN") for i, mount in enumerate(mounts)], False, False, False, False, False, False),
         ("uptime", "System uptime", "days", [("uptime", "uptime", "AVERAGE")], False, False, False, False, False, False),
     ]
+    configured_graphs = [
+        item.strip()
+        for item in config.get("graphs", ",".join(DEFAULT_GRAPHS)).split(",")
+        if item.strip()
+    ]
+    if not configured_graphs:
+        raise SystemExit("At least one graph must be configured in 'graphs'")
+    definitions_by_name = {definition[0]: definition for definition in all_definitions}
+    unknown = [name for name in configured_graphs if name not in definitions_by_name]
+    if unknown:
+        available = ", ".join(DEFAULT_GRAPHS)
+        raise SystemExit(
+            f"Unknown graph name(s): {', '.join(unknown)}. Available: {available}"
+        )
+    if len(configured_graphs) != len(set(configured_graphs)):
+        raise SystemExit("Graph names in 'graphs' must not be repeated")
+    definitions = [definitions_by_name[name] for name in configured_graphs]
     for period_name, start in PERIODS.items():
         for filename, title, unit, series, logarithmic, stacked, disk_memory, network_mixed, thermal_mixed, trouble_mixed in definitions:
             graph(output_dir / f"{filename}-{period_name}.png", rrd, start,