CentOS Stream 9
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Pacemaker : Access to Web GUI2022/03/25

It's possible to operate Cluster resource on Web Admin Console.
[1] On Cluster Nodes, if Firewalld is running, allow service port.
[root@node01 ~]#
firewall-cmd --add-port=2224/tcp

[root@node01 ~]#
firewall-cmd --runtime-to-permanent

[2] Start Web browser on any Client Computer and Access to [https://(Cluster Node's hostname or IP address):2224/]. Then, login form of Cluster Management UI is shown like follows, Login with Cluster admin user ([hacluster] on this example).
[3] After login successfully, Cluster Management console is shown.
To add existing cluster, click [Add existing cluster] button.
[4] Input a hostname of a member of cluster on [Node Name] section.
[5] Existing cluster added.
[6] To Click Cluster Name, details of Cluster is shown. It's possible to confirm status or manage settings.
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