add config

config-default.yml

@@ -0,0 +1,7 @@
+# docker-vol-backup config
+general:
+  compression: gz
+  archive_suffix: datatime
+  archive_path: /home
+
+      

config.yml

@@ -0,0 +1,13 @@
+# docker-vol-backup config
+general:
+  compression: bz2
+
+stacks: 
+  hedgedoc:
+    services:
+      - hedgedoc_database 
+      - hedgedoc_app
+    volumes:
+      - hedgedoc_database
+      - hedgedoc_uploads
+      

volume-backup.py

@@ -2,7 +2,19 @@ from python_on_whales import docker
 import datetime
 import sys
 import pathlib
+import yaml
+import collections.abc
 
+def update(orig_dict, new_dict):
+    for key, val in new_dict.items():
+        if isinstance(val, collections.abc.Mapping):
+            tmp = update(orig_dict.get(key, { }), val)
+            orig_dict[key] = tmp
+        elif isinstance(val, list):
+            orig_dict[key] = (orig_dict.get(key, []) + val)
+        else:
+            orig_dict[key] = new_dict[key]
+    return orig_dict
 
 now = "{date:%Y%m%d-%H%M%S}".format( date=datetime.datetime.now() )
 
@@ -20,7 +32,16 @@ volumes = [ (source_volume,"/volume"),
 
 print("Archive volume: ", source_volume, " to file: ", archive_path)
 
-out=docker.run(image=image,
-               command=command,
-               volumes=volumes)
+#out=docker.run(image=image,
+#               command=command,
+#               volumes=volumes)
 
+with open("config.yml", mode="rt", encoding="utf-8") as file:
+    config = yaml.safe_load(file)
+print(config)    
+with open("config-default.yml", mode="rt", encoding="utf-8") as file:
+    config_default = yaml.safe_load(file)   
+print(config_default)
+
+config = update(config_default, config)
+print(config)