Fix systemd and centos9.

* some package were missing on c9s
* fix systemd socket as it requires a list.

Change-Id: I9cf60ae7b16639a6bf06e050e284757b35dd0dce

tasks/galera_server_post_install.yml

@@ -52,7 +52,8 @@
         standard_output: "socket"
         sockets:
           - socket_name: "mariadbcheck"
-            after_targets: "network.target"
+            after_targets:
+              - "network.target"
             enabled: "{{ galera_monitoring_check_enabled }}"
             state: "restarted"
             options:

vars/redhat-9.yml

@@ -23,6 +23,7 @@ _galera_gpg_keys: {}
 _galera_disable_privatedevices: yes
 
 galera_server_required_distro_packages:
+  - findutils
   - gnupg2
   - libaio
   - libstdc++
@@ -36,7 +37,7 @@ galera_etc_conf_file: "/etc/mysql/my.cnf"
 galera_etc_include_dir: "/etc/mysql/conf.d"
 galera_var_run_socket: "/var/lib/mysql/mysql.sock"
 
-_galera_mariadb_server_package: "mariadb"
+_galera_mariadb_server_package: "mariadb-server"
 
 galera_server_mariadb_distro_packages:
   - which
@@ -57,7 +58,8 @@ _galera_repo: {}
 
 galera_wsrep_provider: "/usr/lib64/galera/libgalera_smm.so"
 
-galera_client_distro_packages: []
+galera_client_distro_packages:
+  - mariadb
 
 galera_devel_distro_packages:
   - mariadb-connector-c-devel