I have configured delivery of secrets from Valt to kubernetes cluster. configured via CSI with creation of SecretProviderClass. secret put in volume:

...
    volumeMounts:
    - name: secrets-store-inline
      mountPath: "/mnt/secrets-store"
      readOnly: true
  volumes:
    - name: secrets-store-inline
      csi:
        driver: secrets-store.csi.k8s.io
        readOnly: true
        volumeAttributes:
          secretProviderClass: "vault-database"

use: cat /mnt/secrets-store/test_secret i can read this secret
I need to set this secret in the deployment env DB_PASSWORD, for example. how can I best do this?