clustercheck: move from xinetd to socat

Needed for CentOS Stream 9 and Rocky Linux 9.

Change-Id: I614e64e227304fdc50c08bd16d67ccf03586b92c

ansible/roles/mariadb/tasks/config.yml

@@ -81,18 +81,3 @@
     - service.enabled | bool
   notify:
     - restart mariadb
-
-- name: Copying over xinetd clustercheck.conf
-  vars:
-    service_name: "mariadb-clustercheck"
-    service: "{{ mariadb_services[service_name] }}"
-  template:
-    src: "{{ role_path }}/templates/xinetd-clustercheck.j2"
-    dest: "{{ node_config_directory }}/{{ service_name }}/clustercheck"
-    mode: "0660"
-  become: true
-  when:
-    - inventory_hostname in groups[service.group]
-    - service.enabled | bool
-  notify:
-    - restart mariadb-clustercheck

ansible/roles/mariadb/templates/mariadb-clustercheck.json.j2

@@ -1,13 +1,6 @@
 {
-    "command": "/usr/sbin/xinetd -dontfork -filelog /var/log/kolla/mariadb/xinetd.log",
-    "config_files": [
-        {
-            "source": "{{ container_config_directory }}/clustercheck",
-            "dest": "/etc/xinetd.d/clustercheck",
-            "owner": "root",
-            "perm": "0600"
-        }
-    ],
+    "command": "socat {% if network_address_family == 'ipv6' %}-6{% endif %} -d -lf/var/log/kolla/mariadb/mariadb-clustercheck.log tcp-l:{{ mariadb_clustercheck_port }},fork,bind={{ api_interface_address }} EXEC:clustercheck",
+    "config_files": [],
     "permissions": [
         {
             "path": "/var/log/kolla/mariadb",

ansible/roles/mariadb/templates/xinetd-clustercheck.j2

@@ -1,16 +0,0 @@
-# default: on
-# description: mysqlchk
-service mysqlchk
-{
-        disable = no
-        flags = REUSE
-        socket_type = stream
-        type = UNLISTED
-        port = {{ mariadb_clustercheck_port }}
-        wait = no
-        user = mysql
-        server = /usr/bin/clustercheck
-        log_type       = FILE /var/log/kolla/mariadb/xinetd.log
-        log_on_failure = HOST ATTEMPT
-        per_source = UNLIMITED
-}