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 | Type | Value |
|---|---|---|---|
replicas | Number of replicas. | int | 2 |
resources | Explicit CPU and memory configuration for each NATS replica. When omitted, the preset defined in resourcesPreset is applied. | object | {} |
resources.cpu | CPU available to each replica. | quantity | "" |
resources.memory | Memory (RAM) available to each replica. | quantity | "" |
resourcesPreset | Default sizing preset used when resources is omitted. | string | nano |
storageClass | StorageClass used to store the data. | string | "" |
external | Enable external access from outside the cluster. | bool | false |
Application-specific parameters
| Name | Description | Type | Value |
|---|---|---|---|
users | Users configuration map. | map[string]object | {} |
users[name].password | Password for the user. | string | "" |
jetstream | Jetstream configuration. | object | {} |
jetstream.enabled | Enable or disable Jetstream for persistent messaging in NATS. | bool | true |
jetstream.size | Jetstream persistent storage size. | quantity | 10Gi |
config | NATS configuration. | object | {} |
config.merge | Additional configuration to merge into NATS config. | *object | {} |
config.resolver | Additional resolver configuration to merge into NATS config. | *object | {} |
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 |