Why can't replication work for perkona?

Question

MySQL

I can't set up replication, because who the hell knows why.) It doesn't write anything worthwhile in the error log.

config one:

[client]
socket=/var/run/mysqld/mysqld.sock

[mysqld]
server-id=1
datadir=/var/lib/mysql
socket=/var/run/mysqld/mysqld.sock
log-error=/var/log/mysql/error.log
pid-file=/var/run/mysqld/mysqld.pid
binlog_expire_logs_seconds=604800
wsrep_provider=/usr/lib/galera4/libgalera_smm.so
wsrep_cluster_address=gcomm://10.0.0.4,10.0.0.5,10.0.0.6
binlog_format=ROW
wsrep_slave_threads=8
wsrep_log_conflicts
innodb_autoinc_lock_mode=2
wsrep_cluster_name=cluster-1
wsrep_node_name=n1
wsrep_node_address=10.0.0.4
pxc_strict_mode=ENFORCING
wsrep_sst_method=xtrabackup-v2
wsrep_provider_options=”socket.ssl_key=server-key.pem;socket.ssl_cert=server-cert.pem;socket.ssl_ca=ca.pem”
log_error = /var/log/mysql/error.log

[sst]
encrypt=4
ssl-key=server-key.pem
ssl-ca=ca.pem
ssl-cert=server-cert.pem

Config 2:

[client]
socket=/var/run/mysqld/mysqld.sock

[mysqld]
server-id=2
datadir=/var/lib/mysql
socket=/var/run/mysqld/mysqld.sock
log-error=/var/log/mysql/error.log
pid-file=/var/run/mysqld/mysqld.pid
binlog_expire_logs_seconds=604800
wsrep_provider=/usr/lib/galera4/libgalera_smm.so
wsrep_cluster_address=gcomm://10.0.0.4,10.0.0.5,10.0.0.6
binlog_format=ROW
wsrep_slave_threads=8
wsrep_log_conflicts
innodb_autoinc_lock_mode=2
wsrep_cluster_name=cluster-1
wsrep_node_name=n2
wsrep_node_address=10.0.0.6
pxc_strict_mode=ENFORCING
wsrep_sst_method=xtrabackup-v2
wsrep_provider_options=”socket.ssl_key=server-key.pem;socket.ssl_cert=server-cert.pem;socket.ssl_ca=ca.pem”
log_error = /var/log/mysql/error.log

[sst]
encrypt=4
ssl-key=server-key.pem
ssl-ca=ca.pem
ssl-cert=server-cert.pem

config three:

[client]
socket=/var/run/mysqld/mysqld.sock

[mysqld]
server-id=3
datadir=/var/lib/mysql
socket=/var/run/mysqld/mysqld.sock
log-error=/var/log/mysql/error.log
pid-file=/var/run/mysqld/mysqld.pid
binlog_expire_logs_seconds=604800
wsrep_provider=/usr/lib/galera4/libgalera_smm.so
wsrep_cluster_address=gcomm://10.0.0.4,10.0.0.5,10.0.0.6
binlog_format=ROW
wsrep_slave_threads=8
wsrep_log_conflicts
innodb_autoinc_lock_mode=2
wsrep_cluster_name=cluster-1
wsrep_node_name=n3
wsrep_node_address=10.0.0.5
pxc_strict_mode=ENFORCING
wsrep_sst_method=xtrabackup-v2
wsrep_provider_options=”socket.ssl_key=server-key.pem;socket.ssl_cert=server-cert.pem;socket.ssl_ca=ca.pem”
log_error = /var/log/mysql/error.log

[sst]
encrypt=4
ssl-key=server-key.pem
ssl-ca=ca.pem
ssl-cert=server-cert.pem

I start the first node in bootstrap mode, check replication:

mysql> SHOW STATUS LIKE 'wsrep%';
+-----------------------------+-----------------------------------+
| Variable_name               | Value                             |
+-----------------------------+-----------------------------------+
| wsrep_cluster_capabilities  |                                   |
| wsrep_cluster_conf_id       | 18446744073709551615              |
| wsrep_cluster_size          | 0                                 |
| wsrep_cluster_state_uuid    |                                   |
| wsrep_cluster_status        | Disconnected                      |
| wsrep_connected             | OFF                               |
| wsrep_local_bf_aborts       | 0                                 |
| wsrep_local_index           | 18446744073709551615              |
| wsrep_provider_capabilities |                                   |
| wsrep_provider_name         | none                              |
| wsrep_provider_vendor       | Codership Oy <[email protected]> |
| wsrep_provider_version      | 26                                |
| wsrep_ready                 | OFF                               |
| wsrep_thread_count          | 0                                 |
+-----------------------------+-----------------------------------+
14 rows in set (0.00 sec)

Something is wrong, I think, oh well. I run the rest of the nodes, they do not connect, of course. Nothing interesting in the logs:

May 22 15:01:53 db1 mysqld[1972]: 2020-05-22T12:01:53.588513Z 1 [Note] [MY-000000] [WSREP] wsrep_init_schema_and_SR (nil)
May 22 15:01:53 db1 mysqld[1972]: 2020-05-22T12:01:53.594030Z 1 [System] [MY-000000] [WSREP] PXC upgrade completed successfully
May 22 15:01:53 db1 mysqld[1972]: 2020-05-22T12:01:53.673159Z 0 [Warning] [MY-010068] [Server] CA certificate ca.pem is self signed.
May 22 15:01:53 db1 mysqld[1972]: 2020-05-22T12:01:53.686006Z 0 [Note] [MY-000000] [WSREP] Initialized wsrep sidno 2
May 22 15:01:53 db1 mysqld[1972]: 2020-05-22T12:01:53.686274Z 0 [Note] [MY-000000] [Galera] Loading provider none initial position: 00000000-0000-0000-0000-000000000000:-1
May 22 15:01:53 db1 mysqld[1972]: 2020-05-22T12:01:53.686284Z 0 [Note] [MY-000000] [Galera] wsrep_load(): loading provider library 'none'
May 22 15:01:53 db1 mysqld[1972]: 2020-05-22T12:01:53.686385Z 0 [System] [MY-010931] [Server] /usr/sbin/mysqld: ready for connections. Version: '8.0.18-9'  socket: '/var/run/mysqld/mysqld
May 22 15:01:53 db1 mysql-systemd[2017]:  SUCCESS!
May 22 15:01:53 db1 systemd[1]: Started Percona XtraDB Cluster with config /etc/default/mysql.bootstrap.
May 22 15:01:53 db1 mysqld[1972]: 2020-05-22T12:01:53.848072Z 0 [System] [MY-011323] [Server] X Plugin ready for connections. Socket: '/var/run/mysqld/mysqlx.sock' bind-address: '::' port

The lib specified in the config is in its place. All servers are the same version. What could be wrong?