stub service

src/lego_monitoring/__init__.py

@@ -1,6 +1,19 @@
+import argparse
 import time
 
+from .core.config import load_config
+
+
 def main() -> None:
+    parser = argparse.ArgumentParser(
+        prog="lego-monitoring",
+        description="Lego-monitoring service",
+    )
+    parser.add_argument('-c', '--config', required=True)
+
+    config_path = parser.parse_args().config
+    config = load_config(config_path)
+
     while True:
-        print("service running...")
+        print(f"service running... opt 1 is {config.non_secret_config_option}, opt 2 is secret, but if you really wanna know, it's {config.config_option}", flush=True)
         time.sleep(300)

src/lego_monitoring/core/config.py

@@ -0,0 +1,32 @@
+import json
+from dataclasses import dataclass
+from typing import Optional
+
+from alt_utils import NestedDeserializableDataclass
+
+
+@dataclass
+class Config(NestedDeserializableDataclass):
+    non_secret_config_option: str
+    config_option: Optional[str]
+
+def load_config(filepath: str) -> Config:
+    with open(filepath) as f:
+        cfg_dict = json.load(f)
+
+    # load secrets from paths
+    new_cfg_dict = {}
+    for k in cfg_dict:
+        if k.endswith('_secret_path'):
+            actual_opt_key = k[:-12]
+            secret_path = cfg_dict[k]
+            if secret_path is None:
+                new_cfg_dict[actual_opt_key] = None
+            else:
+                with open(secret_path) as sf:
+                    new_cfg_dict[actual_opt_key] = sf.read().rstrip()
+        else:
+            new_cfg_dict[k] = cfg_dict[k]
+
+    cfg = Config.from_dict(new_cfg_dict)
+    return cfg