Hands-On Microservices with Kubernetes

Deploying Cassandra on Kubernetes using StatefulSets

Here is a truncated version that includes the parts we should focus on.

The first part includes apiVersion, kind, metadata, and spec, as we've seen before. The name is cassandra, and the label is app: cassandra. In spec, the serviceName name is also cassandra, and there are three replicas:

apiVersion: apps/v1kind: StatefulSetmetadata:  name: cassandra  labels:    app: cassandra spec:   serviceName: cassandra   replicas: 3   selector:     matchLabels:       app: cassandra 

The pod template has a matching label of app: cassandra. The container is named cassandra, too, and uses a Google sample image with the always pull policy. Here, terminationGraceInSeconds is set to 1,800 seconds (that is, 30 minutes). That's ...