Custom JDBC drivers

• Latest Dynatrace
• How-to guide
• 3-min read
• Published Aug 25, 2026

For custom JDBC extensions or vendor-specific drivers with restrictive licenses (for example, SAP HANA DB), you may need to provide a custom JDBC driver JAR to the SQL Extension Executor pod. You can provide custom JDBC drivers in two ways:

Option 1: Mount a volume with custom drivers

In your DynaKube, mount a volume to /app/user/libs. The drivers in this directory are automatically discovered and loaded by the SQL Extension Executor pod at startup. If you update the mounted volume, a restart of the SQL Extension Executor pod is required to pick up the new drivers.

spec:
  extensions:
    databases:
    - replicas: 2
      id: default
      volumes:
      - name: custom-drivers
        secret:
          name: sql-drivers-secret
      volumeMounts:
      - name: custom-drivers
        mountPath: /app/user/libs

Option 2: Use a custom container image

Build a custom container image based on the Dynatrace SQL Extension Executor image with custom JDBC drivers pre-installed in /app/user/libs/. Then specify the image for sqlExtensionExecutor:

templates:
  sqlExtensionExecutor:
    imageRef:
      repository: your-registry/your-custom-executor-image
      tag: <tag>