diff --color -Nur ansible-2.5.5.orig/lib/ansible/modules/system/hostname.py ansible-2.5.5/lib/ansible/modules/system/hostname.py
--- ansible-2.5.5.orig/lib/ansible/modules/system/hostname.py	2018-06-15 05:20:41.000000000 +0800
+++ ansible-2.5.5/lib/ansible/modules/system/hostname.py	2021-12-16 16:28:49.652405482 +0800
@@ -762,6 +762,10 @@
     distribution = 'Neon'
     strategy_class = DebianStrategy
 
+class OpenEulerHostname(Hostname):
+    platform = 'Linux'
+    distribution = 'Openeuler'
+    strategy_class = SystemdStrategy
 
 def main():
     module = AnsibleModule(
diff --color -Nur ansible-2.5.5.orig/lib/ansible/module_utils/facts/system/distribution.py ansible-2.5.5/lib/ansible/module_utils/facts/system/distribution.py
--- ansible-2.5.5.orig/lib/ansible/module_utils/facts/system/distribution.py	2018-06-15 05:20:41.000000000 +0800
+++ ansible-2.5.5/lib/ansible/module_utils/facts/system/distribution.py	2021-12-16 14:16:19.859943412 +0800
@@ -408,7 +408,7 @@
     # keep keys in sync with Conditionals page of docs
     OS_FAMILY_MAP = {'RedHat': ['RedHat', 'Fedora', 'CentOS', 'Scientific', 'SLC',
                                 'Ascendos', 'CloudLinux', 'PSBM', 'OracleLinux', 'OVS',
-                                'OEL', 'Amazon', 'Virtuozzo', 'XenServer'],
+                                'OEL', 'Amazon', 'Virtuozzo', 'XenServer', 'openEuler'],
                      'Debian': ['Debian', 'Ubuntu', 'Raspbian', 'Neon', 'KDE neon',
                                 'Linux Mint'],
                      'Suse': ['SuSE', 'SLES', 'SLED', 'openSUSE', 'openSUSE Tumbleweed',
diff --color -Nur ansible-2.5.5.orig/test/sanity/import/lib/ansible/module_utils/facts/system/distribution.py ansible-2.5.5/test/sanity/import/lib/ansible/module_utils/facts/system/distribution.py
--- ansible-2.5.5.orig/test/sanity/import/lib/ansible/module_utils/facts/system/distribution.py	2018-06-15 05:20:41.000000000 +0800
+++ ansible-2.5.5/test/sanity/import/lib/ansible/module_utils/facts/system/distribution.py	2021-12-16 14:16:19.859943412 +0800
@@ -408,7 +408,7 @@
     # keep keys in sync with Conditionals page of docs
     OS_FAMILY_MAP = {'RedHat': ['RedHat', 'Fedora', 'CentOS', 'Scientific', 'SLC',
                                 'Ascendos', 'CloudLinux', 'PSBM', 'OracleLinux', 'OVS',
-                                'OEL', 'Amazon', 'Virtuozzo', 'XenServer'],
+                                'OEL', 'Amazon', 'Virtuozzo', 'XenServer', 'openEuler'],
                      'Debian': ['Debian', 'Ubuntu', 'Raspbian', 'Neon', 'KDE neon',
                                 'Linux Mint'],
                      'Suse': ['SuSE', 'SLES', 'SLED', 'openSUSE', 'openSUSE Tumbleweed',