Setup Oracle SSL Listener - oracle

Question

I am trying to create an Oracle Database container that has an SSL enabled listener for connections.
But I am having trouble getting the listener to start.
I have tried many configurations but here is where I am stuck:
File structure:
[oracle#361ebc8481f2 /]$ ls -la $ORACLE_HOME/network/admin
total 24
drwxr-xr-x 1 oracle oinstall 4096 Mar 11 17:45 .
drwxr-xr-x 1 oracle oinstall 4096 Feb 26 16:36 ..
lrwxrwxrwx 1 root root 44 Feb 26 17:07 listener.ora -> /opt/oracle/oradata/dbconfig/XE/listener.ora
drwxr-xr-x 2 oracle oinstall 4096 Feb 26 16:36 samples
-rw-r--r-- 1 oracle oinstall 1441 Aug 26 2015 shrept.lst
-rw-r--r-- 1 root root 188 Mar 11 17:45 sqlnet.backup
-rw-r----- 1 oracle oinstall 589 Mar 11 17:45 sqlnet.ora
lrwxrwxrwx 1 root root 44 Feb 26 17:07 tnsnames.ora -> /opt/oracle/oradata/dbconfig/XE/tnsnames.ora
sqlnet.ora:
[oracle#e05203241582 /]$ cat $ORACLE_HOME/network/admin/sqlnet.ora
# sqlnet.ora Network Configuration File: /opt/oracle/product/18c/dbhomeXE/network/admin/sqlnet.ora
# Generated by Oracle configuration tools.
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)
WALLET_LOCATION =
(SOURCE =
(METHOD = FILE)
(METHOD_DATA =
(DIRECTORY = /u01/app/oracle/wallet)
)
)
# General Settings
SSL_CLIENT_AUTHENTICATION = FALSE
# SSL_SERVER_DN_MATCH = FALSE
# SSL_CIPHER_SUITES = (TLS_RSA_WITH_AES_128_CBC_SHA256, TLS_RSA_WITH_AES_256_CBC_SHA256)
# SQLNET Settings
SQLNET.AUTHENTICATION_SERVICES = (TCPS,NTS,BEQ)
# SQLNET.WALLET_OVERRIDE = TRUE
listener.ora:
oracle#e05203241582 /]$ cat $ORACLE_HOME/network/admin/listener.ora
# listener.ora Network Configuration File:
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /opt/oracle/product/18c/dbhomeXE)
(PROGRAM = extproc)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
(ADDRESS = (PROTOCOL = TCP)(HOST = 0.0.0.0)(PORT = 1521))
)
)
SID_LIST_LISTENER2 =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /opt/oracle/product/18c/dbhomeXE)
(PROGRAM = extproc)
)
)
LISTENER2 =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
(ADDRESS = (PROTOCOL = TCPS)(HOST = 0.0.0.0)(PORT = 1522))
)
)
DEFAULT_SERVICE_LISTENER = (XE)
DEFAULT_SERVICE_LISTENER2 = (XESSL)
WALLET_LOCATION =
(SOURCE =
(METHOD = FILE)
(METHOD_DATA =
(DIRECTORY = /u01/app/oracle/wallet)
)
)
SSL_CLIENT_AUTHENTICATION = FALSE
# SSL_SERVER_DN_MATCH = FALSE
tnsnames.ora:
[oracle#e05203241582 /]$ cat $ORACLE_HOME/network/admin/tnsnames.ora
# tnsnames.ora Network Configuration File:
XE =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 0.0.0.0)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = XE)
)
)
LISTENER_XE =
(ADDRESS = (PROTOCOL = TCP)(HOST = 0.0.0.0)(PORT = 1521))
XEPDB1 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 0.0.0.0)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = XEPDB1)
)
)
XESSL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCPS)(HOST = 0.0.0.0)(PORT = 1522))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = XESSL)
)
)
LISTENER2_XESSL =
(ADDRESS = (PROTOCOL = TCPS)(HOST = 0.0.0.0)(PORT = 1522))
XEPDB1SSL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCPS)(HOST = 0.0.0.0)(PORT = 1522))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = XEPDB1SSL)
)
)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
)
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
)
)
Okay so when I start the server LISTENER is running but LISTENER2 is not:
[oracle#e05203241582 /]$ lsnrctl status LISTENER
LSNRCTL for Linux: Version 18.0.0.0.0 - Production on 11-MAR-2021 18:06:01
Copyright (c) 1991, 2018, Oracle. All rights reserved.
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 18.0.0.0.0 - Production
Start Date 11-MAR-2021 18:00:28
Uptime 0 days 0 hr. 5 min. 33 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /opt/oracle/product/18c/dbhomeXE/network/admin/listener.ora
Listener Log File /opt/oracle/diag/tnslsnr/e05203241582/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=e05203241582)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcps)(HOST=127.0.0.1)(PORT=5500))(Security=(my_wallet_directory=/opt/oracle/admin/XE/xdb_wallet))(Presentation=HTTP)(Session=RAW))
Services Summary...
Service "XE" has 1 instance(s).
Instance "XE", status READY, has 1 handler(s) for this service...
Service "XEXDB" has 1 instance(s).
Instance "XE", status READY, has 1 handler(s) for this service...
Service "bc414e16d5db0a27e053020011ac7dda" has 1 instance(s).
Instance "XE", status READY, has 1 handler(s) for this service...
Service "xepdb1" has 1 instance(s).
Instance "XE", status READY, has 1 handler(s) for this service...
The command completed successfully
[oracle#e05203241582 /]$ lsnrctl status LISTENER2
LSNRCTL for Linux: Version 18.0.0.0.0 - Production on 11-MAR-2021 18:06:26
Copyright (c) 1991, 2018, Oracle. All rights reserved.
TNS-01101: Could not find listener name or service name LISTENER2
If I try to start LISTENER2 I get:
[oracle#e05203241582 /]$ lsnrctl start LISTENER2
LSNRCTL for Linux: Version 18.0.0.0.0 - Production on 11-MAR-2021 18:07:49
Copyright (c) 1991, 2018, Oracle. All rights reserved.
Starting /opt/oracle/product/18c/dbhomeXE/bin/tnslsnr: please wait...
TNSLSNR for Linux: Version 18.0.0.0.0 - Production
System parameter file is /opt/oracle/product/18c/dbhomeXE/network/admin/listener.ora
Log messages written to /opt/oracle/diag/tnslsnr/e05203241582/listener2/alert/log.xml
TNS-01151: Missing listener name, LISTENER2, in LISTENER.ORA
Listener failed to start. See the error message(s) above...
But it does exist in that file.
Is there something else I need to configure to get this listener to start correctly?
Sorry I know throwing a bunch of outputs into a stack overflow question isn't great, but I haven't been able to find a way to resolve this for a couple of days. Any help would be appreciated.