How to change weblogic password from Backend in EBS 12.2.x?

On EBS 12.2.X environments , if you are on R12.AD.C.Delta.7 and R12.TXK.C.Delta.7 or later, we can change Weblogic admin server password using the below script.

1. Startup admin server. Do not start any other services

$. ./EBSapps.env RUN
$ cd $ADMIN_SCRIPTS_HOME
$adadminsrvctl.sh start

2. Run the below script  

perl $FND_TOP/patch/115/bin/txkUpdateEBSDomain.pl -action=updateAdminPassword

[The script will prompt for Current and New Weblogic Password and restarts Weblogic admin server using the new password.]

3. Run fs_clone to propagate the changes to the alternate file system (Patch File system).

$adop phase=fs_clone

How to Update APPS password in EBS Datasource (EBS 12.2.x)?

 From EBS 12.2.x versions, whenever we change apps password we need to update the new apps password in EBS Datasource.
Otherwise managed servers wont come up.
Steps to update apps password in Weblogic datasource for EBS 12.2x, post AD-TXK 7:
1. Start Only Admin server,Do not start any other services
$. ./EBSapps.env RUN
$ cd $ADMIN_SCRIPTS_HOME
$adadminsrvctl.sh start

2. Update apps password in Datasource from backend:
$perl $FND_TOP/patch/115/bin/txkManageDBConnectionPool.pl
When prompted select the "updateDSPassword" option.
Sample screen output:

perl $FND_TOP/patch/115/bin/txkManageDBConnectionPool.pl
Please select from list of valid options
        updateDSPassword - Update WebLogic Datasource Password
        updateDSJdbcUrl  - Update WebLogic Datasource Connection String
Enter Your Choice : updateDSPassword
Enter the full path of Applications Context File [DEFAULT -]:
Enter weblogic admin server password:
Enter the APPS user password:

Note: We can also update the apps password in EBS Datasource from Weblogic console.