Showing posts from May, 2020

How to create a Cassandra container for testing with Keyspace and the latest schema with a single script call

The problem: We have an application that uses Cassandra as the preferred persistence technology and we would like to have a one-command container running for local development and testing. In other words, we need the Cassandra container to have the Keyspace and the up-to-date schema following our migration scripts by executing something like   ./ Breaking this problem into two sub-problems we identify that in order to do that we need a DB migration tool. In RDBMS we have tools like Flyway or Liquibase. For Cassandra, with a little bit of digging,  com.hhandoko:cassandra-migration  can be found. Which we can be incorporated into our codebase as a dependency or can exist as a standalone artefact (jar file) to be run on demand by a script. The latest is what we are going to use here. When we go to releases  of that repo, we can see the version of the jar with dependencies. (Current version cassandra-migration-0.17-jar-with-dependencies.ja r).