I am trying to mount a file secret.txt from the secret to location /opt/tomcat/conf/secret.txt. there are other files at the same location e.g. /opt/tomcat/conf/creds.txt that I want to retain.

This is my deployment.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: tomcat-deployment
spec:
  replicas: 1
  selector:
    matchLabels:
      app: tomcat
  template:
    metadata:
      labels:
        app: tomcat
    spec:
      containers:
      - name: tomcat-container
        image: tomcat:latest
        volumeMounts:
        - name: secret-volume
          mountPath: /opt/tomcat/conf/secret.txt
          subPath: secret.txt
      volumes:
      - name: secret-volume
        secret:
          secretName: mysecret
          items:
          - key: secret.txt
            path: secret.txt

The secret mysecret was created using the below command.

kubectl create secret generic mysecret --from-file=secret.txt

But this config creates a directory under /opt/tomcat/conf/ with the name secret.txt/ and further places secret.txt file inside it.

Overall result is /opt/tomcat/conf/secret.txt/secret.txt.

I want it to be like /opt/tomcat/conf/secret.txt

Is there any way to achieve this? Any help would be valuable.

Thanks!