Fix ansible_pkg_mgr is unknown in Kylin Linux (#81314)

Signed-off-by: bo.jiang <bo.jiang@daocloud.io>

changelogs/fragments/81332-fix-pkg-mgr-in-kylin.yml

@@ -0,0 +1,2 @@
+bugfixes:
+  - pkg_mgr.py - Fix `ansible_pkg_mgr` is unknown in Kylin Linux (https://github.com/ansible/ansible/issues/81332)

lib/ansible/module_utils/facts/system/pkg_mgr.py

@@ -85,13 +85,17 @@ class PkgMgrFactCollector(BaseFactCollector):
                 break
 
         try:
-            distro_major_ver = int(collected_facts['ansible_distribution_major_version'])
+            major_version = collected_facts['ansible_distribution_major_version']
+            if collected_facts['ansible_distribution'] == 'Kylin Linux Advanced Server':
+                major_version = major_version.lstrip('V')
+            distro_major_ver = int(major_version)
         except ValueError:
             # a non integer magical future version
             return self._default_unknown_pkg_mgr
 
         if (
             (collected_facts['ansible_distribution'] == 'Fedora' and distro_major_ver < 23)
+            or (collected_facts['ansible_distribution'] == 'Kylin Linux Advanced Server' and distro_major_ver < 10)
             or (collected_facts['ansible_distribution'] == 'Amazon' and distro_major_ver < 2022)
             or (collected_facts['ansible_distribution'] == 'TencentOS' and distro_major_ver < 3)
             or distro_major_ver < 8  # assume RHEL or a clone

test/units/module_utils/facts/system/test_pkg_mgr.py

@@ -14,9 +14,21 @@ _FEDORA_FACTS = {
     "ansible_os_family": "RedHat"
 }
 
+_KYLIN_FACTS = {
+    "ansible_distribution": "Kylin Linux Advanced Server",
+    "ansible_distribution_major_version": "V10",
+    "ansible_os_family": "RedHat"
+}
+
 # NOTE pkg_mgr == "dnf" means the dnf module for the dnf 4 or below
 
 
+def test_default_dnf_version_detection_kylin_dnf4(mocker):
+    mocker.patch("os.path.exists", lambda p: p in ("/usr/bin/dnf", "/usr/bin/dnf-3"))
+    mocker.patch("os.path.realpath", lambda p: {"/usr/bin/dnf": "/usr/bin/dnf-3"}.get(p, p))
+    assert PkgMgrFactCollector().collect(collected_facts=_KYLIN_FACTS).get("pkg_mgr") == "dnf"
+
+
 def test_default_dnf_version_detection_fedora_dnf4(mocker):
     mocker.patch("os.path.exists", lambda p: p in ("/usr/bin/dnf", "/usr/bin/dnf-3"))
     mocker.patch("os.path.realpath", lambda p: {"/usr/bin/dnf": "/usr/bin/dnf-3"}.get(p, p))