Yan Bondarenko
95d7026c2e
With users configured and jetstream.enabled true, the chart enables
JetStream on the server but generates account A without it, so every
JetStream call from those users fails with error 10039, "JetStream not
enabled for account". The generated account now gets jetstream: true
unless it already sets JetStream itself. nats-server matches config keys
case-insensitively and walks the account map in no fixed order, so a
JetStream key in any casing counts as set. Otherwise the account would
carry both keys and the server would apply either one, changing from
restart to restart.
Assisted-by: LLM
Signed-off-by: Yan Bondarenko <202671653+yankawai@users.noreply.github.com>
(cherry picked from commit 15b7092f3a)
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.
storageClassis annotated as immutable in the chart schema — seedocs/storage-immutability.mdfor the contract and which consumers enforce it.
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 |
t1.nano |
storageClass |
StorageClass used to store the data. | string |
"" |
external |
Enable external access from outside the cluster. | bool |
false |
tls |
TLS configuration. When omitted, TLS follows the external flag. |
object |
{} |
tls.enabled |
Enable TLS. When omitted, TLS is enabled automatically when external is true. |
*bool |
null |
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.
Presets follow a cloud-style <series>.<size> naming convention. Five series cover the full CPU-to-memory ratio range (t1 1:0.5, c1 1:1, s1 1:2, u1 1:4, m1 1:8) and each series ships eight sizes (nano through 4xlarge). The legacy flat names (nano, micro, small, medium, large, xlarge, 2xlarge) remain accepted as deprecated aliases of their 1:1 instance-type equivalents.
See docs/operations/resource-presets.md for the full size matrix and the legacy-to-instance-type mapping.