Spanner Omni is a downloadable Spanner database that you can run anywhere.
Run Spanner in your own data centers, across clouds, or on a laptop to AI-enabled applications wherever you operate.
Spanner can now be downloaded as a docker container/helm chart for development, integration testing, learning, etc. Includes all the features.... (SQL, Graph, full text search, Paxos replication, etc) -- it's the real Spanner binary sharing 99% of the code that Google runs in production.
Download here:
https://docs.cloud.google.com/spanner-omni/download