Techniques are disclosed relating to managing virtual data sources (VDSs), including creating and using VDSs. A virtual data source manager (VDSM) that is executing on a computer system may receive a VDS creation request to create a particular VDS. The VDS creation request may include information that is usable to identify a data origin of the particular VDS and an ingestion routine. The VDSM may use the ingestion routine to create the particular VDS that includes a bitmap index that is representative of data stored at the origin. In response to a data request corresponding to the origin, the particular VDS may be used to initiate a query to the particular VDS for data without accessing the origin. The VDSM may further maintain various software plugins that are executable to perform corresponding functions in relation to the VDSM and the VDSs managed by the VDSM.