Oracle DB 23.4.0 FREE setup binds to docker host name

[tomasr]

Seems like the 23.4.0 setup files will produce a non-working tnsnames.ora file that is bound to the docker hostname instead of 0.0.0.0:

# tnsnames.ora Network Configuration File: /opt/oracle/product/23ai/dbhomeFree/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.

FREE =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = f545cf6d23da)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = FREE)
    )
  )

LISTENER_FREE =
  (ADDRESS = (PROTOCOL = TCP)(HOST = f545cf6d23da)(PORT = 1521))


FREEPDB1 =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = 0.0.0.0)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = FREEPDB1)
    )
  )

This causes a failure during startup because the TNS listener won't start if the hostname has changed:

Oracle Database instance FREE started.

Failed to start Oracle Net Listener using /opt/oracle/product/23ai/dbhomeFree/bin/tnslsnr and Oracle Database using /opt/oracle/product/23ai/dbhomeFree/bin/sqlplus.
The Oracle base remains unchanged with value /opt/oracle

Looking at the setup scripts, the way tnsnames.ora was definitely changed between 23.3.0 and 23.4.0.

[tomasr]

Looking at this a bit closer, I think the issue might be less tnsnames.ora and more listener.ora, which is still bound to the hostname.

[aditya059]

Hi @tomasr

I build and ran 23.4 free container on my machine. For me the files created are correct. Output below:

bash-4.4$ podman run -td --name free23.4 oracle/database:23.4.0-free

bash-4.4$ podman logs -f free23.4
Specify a password to be used for database accounts. Oracle recommends that the password entered should be at least 8 characters in length, contain at least 1 uppercase character, 1 lower case character and 1 digit [0-9]. Note that the same password will be used for SYS, SYSTEM and PDBADMIN accounts:
Confirm the password:
Configuring Oracle Listener.
Listener configuration succeeded.
Configuring Oracle Database FREE.
Enter SYS user password: 
*******************
Enter SYSTEM user password: 
****************
Enter PDBADMIN User Password: 
*****************
Prepare for db operation
7% complete
Copying database files
29% complete
Creating and starting Oracle instance
30% complete
33% complete
36% complete
39% complete
43% complete
Completing Database Creation
47% complete
49% complete
50% complete
Creating Pluggable Databases
54% complete
71% complete
Executing Post Configuration Actions
93% complete
Running Custom Scripts
100% complete
Database creation complete. For details check the logfiles at:
 /opt/oracle/cfgtoollogs/dbca/FREE.
Database Information:
Global Database Name:FREE
System Identifier(SID):FREE
Look at the log file "/opt/oracle/cfgtoollogs/dbca/FREE/FREE.log" for further details.

Connect to Oracle Database using one of the connect strings:
     Pluggable database: b45412fbfd63/FREEPDB1
     Multitenant container database: b45412fbfd63

SQL*Plus: Release 23.0.0.0.0 - Production on Fri Jun 28 07:06:01 2024
Version 23.4.0.24.05

Copyright (c) 1982, 2024, Oracle.  All rights reserved.


Connected to:
Oracle Database 23ai Free Release 23.0.0.0.0 - Develop, Learn, and Run for Free
Version 23.4.0.24.05

SQL> 
System altered.

SQL> 
Pluggable database altered.

SQL> 
PL/SQL procedure successfully completed.

SQL> SQL> 
Session altered.

SQL> 
User created.

SQL> 
Grant succeeded.

SQL> 
Grant succeeded.

SQL> 
Grant succeeded.

SQL> 
User altered.

SQL> SQL> Disconnected from Oracle Database 23ai Free Release 23.0.0.0.0 - Develop, Learn, and Run for Free
Version 23.4.0.24.05
The Oracle base remains unchanged with value /opt/oracle
The Oracle base remains unchanged with value /opt/oracle
#########################
DATABASE IS READY TO USE!
#########################
The following output is now a tail of the alert.log:
FREEPDB1(3):Tablespace created: USERS ts# 6
FREEPDB1(3):Completed: CREATE SMALLFILE TABLESPACE "USERS" LOGGING  DATAFILE  '/opt/oracle/oradata/FREE/FREEPDB1/users01.dbf' SIZE 5M REUSE AUTOEXTEND ON NEXT  1280K MAXSIZE UNLIMITED  EXTENT MANAGEMENT LOCAL  SEGMENT SPACE MANAGEMENT  AUTO
FREEPDB1(3):ALTER DATABASE DEFAULT TABLESPACE "USERS"
FREEPDB1(3):Completed: ALTER DATABASE DEFAULT TABLESPACE "USERS"
ALTER PLUGGABLE DATABASE FREEPDB1 SAVE STATE
Completed: ALTER PLUGGABLE DATABASE FREEPDB1 SAVE STATE
2024-06-28T07:06:01.505992+00:00
ALTER SYSTEM SET local_listener='' SCOPE=BOTH;
ALTER PLUGGABLE DATABASE FREEPDB1 SAVE STATE
Completed: ALTER PLUGGABLE DATABASE FREEPDB1 SAVE STATE
2024-06-28T07:06:35.297816+00:00
TABLE SYS.WRP$_REPORTS: ADDED AUTOLIST FRAGMENT SYS_P362 (2) VALUES (( 1444875687, TO_DATE(' 2024-06-24 00:00:00', 'syyyy-mm-dd hh24:mi:ss', 'nls_calendar=gregorian') ))
TABLE SYS.WRP$_REPORTS_DETAILS: ADDED AUTOLIST FRAGMENT SYS_P363 (2) VALUES (( 1444875687, TO_DATE(' 2024-06-24 00:00:00', 'syyyy-mm-dd hh24:mi:ss', 'nls_calendar=gregorian') ))
TABLE SYS.WRP$_REPORTS_TIME_BANDS: ADDED AUTOLIST FRAGMENT SYS_P366 (2) VALUES (( 1444875687, TO_DATE(' 2024-06-24 00:00:00', 'syyyy-mm-dd hh24:mi:ss', 'nls_calendar=gregorian') ))
^Cbash-4.4$ 
bash-4.4$ 
bash-4.4$ 
bash-4.4$ podman exec -it free23.4 bash
bash-4.4$ 
bash-4.4$ 
bash-4.4$ cat "$ORACLE_HOME"/network/admin/sqlnet.ora
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT, HOSTNAME)
DISABLE_OOB=ON
SQLNET.EXPIRE_TIME=3
bash-4.4$ 
bash-4.4$ 
bash-4.4$ cat "$ORACLE_HOME"/network/admin/listener.ora
# listener.ora Network Configuration File: /opt/oracle/product/23ai/dbhomeFree/network/admin/listener.ora
# Generated by Oracle configuration tools.

DEFAULT_SERVICE_LISTENER = FREE

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 0.0.0.0)(PORT = 1521))
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
    )
  )

bash-4.4$ 
bash-4.4$ 
bash-4.4$ cat "$ORACLE_HOME"/network/admin/tnsnames.ora
# tnsnames.ora Network Configuration File: /opt/oracle/product/23ai/dbhomeFree/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.

FREE =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = 0.0.0.0)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = FREE)
    )
  )

LISTENER_FREE =
  (ADDRESS = (PROTOCOL = TCP)(HOST = 0.0.0.0)(PORT = 1521))


FREEPDB1 =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = 0.0.0.0)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = FREEPDB1)
    )
  )

[doberkofler]

@tomasr I might have a related problem (#2870) and was wondering if you are also using (doker) buildkit?

[tomasr]

@tomasr I might have a related problem (#2870) and was wondering if you are also using (doker) buildkit?

Not intentionally, no. My issue was more related to restarting the container after build. Like I said, my listener changes worked, not sure why the team insists it is correct, since it's obviously broken if hostnames change.