Base
Hardened build
minimal ports, security patches applied at build time
Virtuoso Open Source Edition on Ubuntu 24.04
Azure
Databases
a multi model server that unites an RDF SPARQL triplestore with a relational SQL engine and the Conductor web admin: browse schemas, run SQL and SPARQL, and manage the server from one daemon.
Overview
Virtuoso Open Source Edition is a multi model data server: a single daemon that is at once an RDF SPARQL triplestore, a relational SQL engine and a built in HTTP server, fronted by the Conductor web administration console. It is the same engine that powers DBpedia. From the browser you log in to the Conductor, browse the SQL schema, run SQL in the Interactive SQL editor, run SPARQL against the RDF store, and administer the server, while applications reach the same data over the SQL, ODBC and JDBC port and the SPARQL HTTP endpoint. It is a strong choice for knowledge graphs, linked data and mixed relational and RDF workloads.
Why the cloudimg image
cloudimg ships Virtuoso hardened by default. Both the SQL server and the HTTP server bind to loopback only and are never exposed directly to the network; the Conductor and SPARQL endpoint are reached solely through an nginx front on port 80, and the well known dba and dav accounts are rotated to unique per VM secrets on first boot using Virtuoso's supported offline password mechanism, so no default dba/dba or dav/dav login ever ships in the image. The OS is fully patched and the whole stack is proven on every build with a 15 point smoke test.
See it running
Real screenshots taken while testing this image against its deployment guide.
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