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Managed NATS Service

NATS is an open-source, simple, secure, and high performance messaging system. It provides a data layer for cloud native applications, IoT messaging, and microservices architectures.

Parameters

Common parameters

Name Description Value
replicas Number of replicas 2
resources Explicit CPU and memory configuration for each NATS replica. When left empty, the preset defined in resourcesPreset is applied. {}
resourcesPreset Default sizing preset used when resources is omitted. Allowed values: nano, micro, small, medium, large, xlarge, 2xlarge. nano
storageClass StorageClass used to store the data ""
external Enable external access from outside the cluster false

Application-specific parameters

Name Description Value
users Users configuration (see example) {}
jetstream.enabled Enable or disable Jetstream true
jetstream.size Jetstream persistent storage size 10Gi
config.merge Additional configuration to merge into NATS config (see example) {}
config.resolver Additional resolver configuration to merge into NATS config (see example) {}

Parameter examples and reference

resources and resourcesPreset

resources sets explicit CPU and memory configurations for each replica. When left empty, the preset defined in resourcesPreset is applied.

resources:
  cpu: 4000m
  memory: 4Gi

resourcesPreset sets named CPU and memory configurations for each replica. This setting is ignored if the corresponding resources value is set.

Preset name CPU memory
nano 250m 128Mi
micro 500m 256Mi
small 1 512Mi
medium 1 1Gi
large 2 2Gi
xlarge 4 4Gi
2xlarge 8 8Gi