tools/inventory: rename all section into default

Signed-off-by: Olivier Hoareau <olivier.hoareau@vates.tech>

Author: olivierh-pro

README.md

@@ -671,7 +671,7 @@ Take a look at an example inventory file:
 ```toml
 # my_inventory.toml
 
-[all]
+[default]
 repositories = ["xcp-ng-base"]
 hosting_pool = "A"
 
@@ -686,9 +686,10 @@ hosting_pool = "B"
 ```
 
 > [!IMPORTANT]
-> Config values under `hosts` override values under `all`. For instance, the above inventory would produce
+> * `default` is applied to all hosts
+> * Config values under `hosts` override values under `default`. For instance, the above inventory would produce
 > the following python dict:
 >
 > `{'ip_or_hostname-1': {'repositories': ['xcp-ng-base'], 'hosting_pool': 'A'}, 'ip_or_hostname-2': {'repositories': ['xcp-ng-updates'], 'hosting_pool': 'B'}}`
 >
-> Using *enablerepo flag* `-e` with inventory is still possible, it won't be used though.
+> * Using *enablerepo flag* `-e` with inventory is still possible, it won't be used though.

lib/tools/inventory.py

@@ -24,17 +24,17 @@ def load_inventory(inventory_path: Path) -> Inventory:
     with open(inventory_path, "rb") as f:
         data = tomllib.load(f)
 
-    all = data.get("all", {})
+    default = data.get("default", {})
     hosts = data.get("hosts", [])
 
     inventory_hosts: HostConfigs = {}
     for h, config in hosts.items():
         repos = config.get("repositories", [])
         hosting_pool = config.get("hosting_pool", None)
         if hosting_pool is None:
-            hosting_pool = all.get("hosting_pool", None)
+            hosting_pool = default.get("hosting_pool", None)
         host: HostConfig = {
-            "repositories": repos or all.get("repositories", []),
+            "repositories": repos or default.get("repositories", []),
             "hosting_pool": hosting_pool,
         }
         inventory_hosts[h] = host