Use WLST

You can use the WebLogic Scripting Tool (WLST) to manage a domain running in Kubernetes. If the Administration Server was configured to expose a T3 channel using the exposeAdminT3Channel setting when creating the domain, then the matching T3 service can be used to connect. For example, if the domainUID is domain1, and the Administration Server name is admin-server, then the service would be called:

domain1-admin-server-external  

This service will be in the same namespace as the domain. The external port number can be obtained by checking this service’s nodePort:

$ kubectl get service domain1-admin-server-external -n domain1 -o jsonpath='{.spec.ports[0].nodePort}'
30012

In this example, the nodePort is 30012. If the Kubernetes server’s address was kubernetes001, then WLST can connect to t3://kubernetes001:30012 as shown below:

$ ~/wls/oracle_common/common/bin/wlst.sh

Initializing WebLogic Scripting Tool (WLST) ...

Welcome to WebLogic Server Administration Scripting Shell

Type help() for help on available commands

wls:/offline> connect('weblogic','*password*','t3:// kubernetes001:30012')
Connecting to t3:// kubernetes001:30012 with userid weblogic ...
Successfully connected to Admin Server "admin-server" that belongs to domain "base_domain".

Warning: An insecure protocol was used to connect to the server.
To ensure on-the-wire security, the SSL port or Admin port should be used instead.

wls:/base_domain/serverConfig/> exit()


Exiting WebLogic Scripting Tool.