I have created two diff pods with same code base or image containing same compiled code. Using spring profiling,passed two different arguments for connection to oracle database.

for example

How about try to use StatefulSet for deploying each pod ? StatefulSet make each pod uses each PersistentVolume, so if you place each configuration file which is configured with other database connection data on each PersistentVolume, each pod can use other database each other. Because the pod can refer different config file.

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: app
spec:
  serviceName: "app"
  replicas: 2
  selector:
    matchLabels:
      app: app
  template:
    metadata:
      labels:
        app: app
    spec:
      containers:
      - name: app
        image: example.com/app:1.0
        ports:
        - containerPort: 8080
          name: web
        volumeMounts:
        - name: databaseconfig
          mountPath: /usr/local/databaseconfig
  volumeClaimTemplates:
  - metadata:
      name: databaseconfig
    spec:
      accessModes: [ "ReadWriteOnce" ]
      resources:
        requests:
          storage: 10Mi