add docker build

main.py

@@ -1,6 +1,88 @@
-def main():
-    print("Hello from authelia-metrics!")
+import os
+import time
+from prometheus_client import start_http_server, Gauge, REGISTRY
+from dotenv import load_dotenv
+
+# 1. Define Metrics with Labels
+# Use labels for domain and feature to avoid creating 100s of unique metric names
+DOMAIN_FEATURE = Gauge(
+    "caddy_domain_imports",
+    "Binary status of domain features (1=enabled, 0=disabled)",
+    ["domain", "feature"],
+)
+
+GLOBAL_STATS = Gauge(
+    "caddy_global_stats", "Aggregated counts of features across all domains", ["type"]
+)
+
+
+load_dotenv()
+
+CADDY_PATH = os.environ["CADDY_PATH"]
+
+
+def load_caddyfile():
+    with open(CADDY_PATH, "r") as f:
+        return f.read()
+
+
+def parse(data):
+    from libs.parse_caddyfile import parse as caddy_parse
+
+    return caddy_parse(data)
+
+
+def mathing(data: dict):
+    total_domains = len(data.items())
+    # info = dict({"auth": 0, "wan": 0, "noauth": 0, "nowan": 0, "none": 0})
+    info = dict({"no_auth": 0, "no_wan": 0})
+    for domain, imports in data.items():
+        if len(imports) == 0:
+            if "none" not in info:
+                info["none"] = 1
+            info["none"] += 1
+            continue
+        for imp in imports:
+            if imp not in info:
+                info[imp] = 1
+            info[imp] += 1
+        if "auth" not in imports:
+            info["no_auth"] += 1
+        if "wan" not in imports:
+            info["no_wan"] += 1
+    info["total_domains"] = total_domains
+    return info
+
+
+def update_metrics():
+    # Your existing parsing logic
+    try:
+        raw_data = load_caddyfile()
+        hosts = parse(raw_data)
+        info = mathing(hosts)
+
+        # --- Update Global Metrics ---
+        for key, value in info.items():
+            GLOBAL_STATS.labels(type=key).set(value)
+
+        # --- Update Per-Domain Metrics ---
+        tracked_features = ["auth", "wan"]
+
+        for domain, imports in hosts.items():
+            for feature in tracked_features:
+                is_enabled = 1 if feature in imports else 0
+                DOMAIN_FEATURE.labels(domain=domain, feature=feature).set(is_enabled)
+
+        print(f"Metrics updated at {time.ctime()}")
+
+    except Exception as e:
+        print(f"Error updating metrics: {e}")
 
 
 if __name__ == "__main__":
-    main()
+    start_http_server(port=8000, addr="0.0.0.0")
+    print("Prometheus server started on port 8000")
+
+    while True:
+        update_metrics()
+        time.sleep(60)