---
# Topics are declared, never auto-created.
#
# Two reasons. An application account has no Create ACL — a producer that can
# invent topics can also invent a typo and publish into it for weeks with nobody
# noticing. And auto-created topics take the broker defaults, which is how a
# topic that should be compacted and retained for a year ends up deleted after
# seven days.
#
# One topic per aggregate. Partition count is the ceiling on consumer
# parallelism and cannot be lowered later, so it is set for the traffic
# expected, not for the traffic today.
apiVersion: kafka.strimzi.io/v1
kind: KafkaTopic
metadata:
  name: classic-models.catalog
  namespace: kafka
  labels:
    strimzi.io/cluster: kafka
spec:
  partitions: 3
  replicas: 1
  config:
    retention.ms: "604800000"   # 7 days
    cleanup.policy: delete
    min.insync.replicas: "1"
---
apiVersion: kafka.strimzi.io/v1
kind: KafkaTopic
metadata:
  name: classic-models.sales
  namespace: kafka
  labels:
    strimzi.io/cluster: kafka
spec:
  partitions: 3
  replicas: 1
  config:
    retention.ms: "604800000"
    cleanup.policy: delete
    min.insync.replicas: "1"
---
apiVersion: kafka.strimzi.io/v1
kind: KafkaTopic
metadata:
  name: classic-models.payments
  namespace: kafka
  labels:
    strimzi.io/cluster: kafka
spec:
  partitions: 3
  replicas: 1
  config:
    retention.ms: "604800000"
    cleanup.policy: delete
    min.insync.replicas: "1"