Fix uniontech os installation failure (#9862)

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

roles/kubernetes/preinstall/defaults/main.yml

@@ -107,3 +107,32 @@ ntp_force_sync_immediately: false
 
 # Set the timezone for your server.  eg: "Etc/UTC","Etc/GMT-8". If not set, the timezone will not change.
 ntp_timezone: ""
+
+# Currently known os distributions
+supported_os_distributions:
+  - 'RedHat'
+  - 'CentOS'
+  - 'Fedora'
+  - 'Ubuntu'
+  - 'Debian'
+  - 'Flatcar'
+  - 'Flatcar Container Linux by Kinvolk'
+  - 'Suse'
+  - 'openSUSE Leap'
+  - 'openSUSE Tumbleweed'
+  - 'ClearLinux'
+  - 'OracleLinux'
+  - 'AlmaLinux'
+  - 'Rocky'
+  - 'Amazon'
+  - 'Kylin Linux Advanced Server'
+  - 'UnionTech'
+  - 'UniontechOS'
+  - 'openEuler'
+
+# Extending some distributions into the redhat os family
+redhat_os_family_extensions:
+  - "Kylin Linux Advanced Server"
+  - "openEuler"
+  - "UnionTech"
+  - "UniontechOS"

roles/kubernetes/preinstall/tasks/0020-verify-settings.yml

@@ -22,9 +22,9 @@
     that: ansible_service_mgr == "systemd"
   when: not ignore_assert_errors
 
-- name: Stop if unknown OS
+- name: Stop if the os does not support
   assert:
-    that: ansible_distribution in ['RedHat', 'CentOS', 'Fedora', 'Ubuntu', 'Debian', 'Flatcar', 'Flatcar Container Linux by Kinvolk', 'Suse', 'openSUSE Leap', 'openSUSE Tumbleweed', 'ClearLinux', 'OracleLinux', 'AlmaLinux', 'Rocky', 'Amazon', 'Kylin Linux Advanced Server', 'UnionTech', 'openEuler']
+    that: ansible_distribution in supported_os_distributions
     msg: "{{ ansible_distribution }} is not a known OS"
   when: not ignore_assert_errors
 

roles/kubernetes/preinstall/tasks/0040-set_facts.yml

@@ -10,7 +10,7 @@
   set_fact:
     ansible_os_family: "RedHat"
     ansible_distribution_major_version: "8"
-  when: ansible_distribution in ["Kylin Linux Advanced Server", "openEuler"]
+  when: ansible_distribution in redhat_os_family_extensions
   tags:
     - facts