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@@ -52,6 +52,17 @@ An easy way to spin up a Cassandra instance is using a Cassandra Docker image as **WARNING**: *This step must be executed only once.* +Workflow Designer requires two Cassandra namespaces: + +- WORKFLOW +- ZUSAMMEN_WORKFLOW + +By default, these keyspaces are configured to use a simple replication strategy (`'class' : 'SimpleStrategy'`) +and the replication factor of one (`'replication_factor' : 1`). In order to override this configuration, override +the *create_keyspaces.cql* file at the root of the initialization container using +[Docker volume mapping](https://docs.docker.com/storage/volumes/). Include `IF NOT EXISTS` clause in the keyspace +creation statements to prevent accidental data loss. + `docker run -ti -e CS_HOST=<cassandra-host> -e CS_PORT=<cassandra-port> -e CS_AUTHENTICATE=true/false -e CS_USER=<cassandra-user> -e CS_PASSWORD=<cassandra-password> nexus3.onap.org:10001/onap/workflow-init:latest` |