The image shows an OCI Region with three Availability Domains with a VCN containing two Public Subnets, Virtual Disk Bucket, Events, Functions, DevOps, and Policies.

Public Subnet (10.0.0.0/24) contains Apache Airflow in Availability Domain 1. Public Subnet (10.0.1.0/24) contains a Worker Instance connected to Block Volume in Availability Domain 2.

1. The user uploads a new virtual disk image to the OCI Object Storage bucket.
2. When the virtual disk image file upload is finalized, the event triggers the execution of an OCI Function.
3. The function will fetch the virtual disk object metadata and call the Apache Airflow API to start DAG (Directed Acyclic Graph) execution.
4. The Apache Airflow DAG will handle the import of the virtual disk image into OCI Block Volume.
5. Users can monitor the DAG execution by connecting to Apache Airflow.