IAM Auth for BYO-Cassandra

[shabemdadi1]

I am referring to the helm charts docs here GitHub - temporalio/helm-charts: Temporal Helm charts for how we can connect our own Cassandra instance, which mentions that we should update the relevant values in helm-charts/values/values.cassandra.yaml at master · temporalio/helm-charts · GitHub. We want to use our AWS Keyspace managed Cassandra instance, which uses IAM auth for allowing our services to connect (so, doesn’t use username/password). Is that supported?

[shabemdadi1]

NVM - noted from these posts that Temporal is not compatible with AWS Keyspaces:

AWS Keyspace as managed cassandra for Temporal

It seems from that webpage that Keyspaces supports LWT actually: “Amazon Keyspaces (for Apache Cassandra) fully supports compare and set functionality on INSERT and UPDATE commands, which are known as lightweight transactions (LWTs) in Apache Cassandra. As a serverless offering, Amazon Keyspaces (for Apache Cassandra) provides consistent performance at any scale, including for lightweight transactions. With Amazon Keyspaces, there is no performance penalty for using lightweight transactions.”

Running on Amazon Keyspaces

We’ve had a few requests for keyspaces so this is something we definitely want to support and I’m actively tracking it. Right now it seems like a few off the shelf hosted Cassandra solutions aren’t actually as compatible as we hoped so as Mark said, there is considerable work.