fix(kafka): bump default resourcesPreset to medium

The `small` preset (512Mi) is not sufficient for the Strimzi 0.45 /
Kafka 3.9 image baseline. With the default Strimzi heap formula
(Kafka 50%, ZooKeeper 75% of container memory limit), the remaining
non-heap budget (Metaspace, code cache, direct buffers, JMX
javaagent, embedded Jetty admin server, KRaft migration endpoints,
thread stacks) consistently overflows the 512Mi cgroup limit at
startup, leading to OOMKilled (exit 137) and CrashLoopBackOff for
both Kafka and ZooKeeper pods.

Bump the default `resourcesPreset` for kafka and zookeeper from
`small` (512Mi) to `medium` (1Gi). The `small` preset stays in the
enum so existing deployments that pin it are unaffected; only the
default changes.

Signed-off-by: Ivan Okhotnikov <ivan.okhotnikov@aenix.io>

api/apps/v1alpha1/kafka/types.go

@@ -40,7 +40,7 @@ type Kafka struct {
 	// +kubebuilder:default:={}
 	Resources Resources `json:"resources,omitempty"`
 	// Default sizing preset used when `resources` is omitted.
-	// +kubebuilder:default:="small"
+	// +kubebuilder:default:="medium"
 	ResourcesPreset ResourcesPreset `json:"resourcesPreset"`
 	// Persistent Volume size for Kafka.
 	// +kubebuilder:default:="10Gi"
@@ -76,7 +76,7 @@ type ZooKeeper struct {
 	// +kubebuilder:default:={}
 	Resources Resources `json:"resources,omitempty"`
 	// Default sizing preset used when `resources` is omitted.
-	// +kubebuilder:default:="small"
+	// +kubebuilder:default:="medium"
 	ResourcesPreset ResourcesPreset `json:"resourcesPreset"`
 	// Persistent Volume size for ZooKeeper.
 	// +kubebuilder:default:="5Gi"

packages/apps/kafka/README.md

@@ -22,30 +22,30 @@
 
 ### Kafka configuration
 
-| Name                     | Description                                                                                              | Type       | Value   |
-| ------------------------ | -------------------------------------------------------------------------------------------------------- | ---------- | ------- |
-| `kafka`                  | Kafka configuration.                                                                                     | `object`   | `{}`    |
-| `kafka.replicas`         | Number of Kafka replicas.                                                                                | `int`      | `3`     |
-| `kafka.resources`        | Explicit CPU and memory configuration. When omitted, the preset defined in `resourcesPreset` is applied. | `object`   | `{}`    |
-| `kafka.resources.cpu`    | CPU available to each replica.                                                                           | `quantity` | `""`    |
-| `kafka.resources.memory` | Memory (RAM) available to each replica.                                                                  | `quantity` | `""`    |
-| `kafka.resourcesPreset`  | Default sizing preset used when `resources` is omitted.                                                  | `string`   | `small` |
-| `kafka.size`             | Persistent Volume size for Kafka.                                                                        | `quantity` | `10Gi`  |
-| `kafka.storageClass`     | StorageClass used to store the Kafka data.                                                               | `string`   | `""`    |
+| Name                     | Description                                                                                              | Type       | Value    |
+| ------------------------ | -------------------------------------------------------------------------------------------------------- | ---------- | -------- |
+| `kafka`                  | Kafka configuration.                                                                                     | `object`   | `{}`     |
+| `kafka.replicas`         | Number of Kafka replicas.                                                                                | `int`      | `3`      |
+| `kafka.resources`        | Explicit CPU and memory configuration. When omitted, the preset defined in `resourcesPreset` is applied. | `object`   | `{}`     |
+| `kafka.resources.cpu`    | CPU available to each replica.                                                                           | `quantity` | `""`     |
+| `kafka.resources.memory` | Memory (RAM) available to each replica.                                                                  | `quantity` | `""`     |
+| `kafka.resourcesPreset`  | Default sizing preset used when `resources` is omitted.                                                  | `string`   | `medium` |
+| `kafka.size`             | Persistent Volume size for Kafka.                                                                        | `quantity` | `10Gi`   |
+| `kafka.storageClass`     | StorageClass used to store the Kafka data.                                                               | `string`   | `""`     |
 
 
 ### ZooKeeper configuration
 
-| Name                         | Description                                                                                              | Type       | Value   |
-| ---------------------------- | -------------------------------------------------------------------------------------------------------- | ---------- | ------- |
-| `zookeeper`                  | ZooKeeper configuration.                                                                                 | `object`   | `{}`    |
-| `zookeeper.replicas`         | Number of ZooKeeper replicas.                                                                            | `int`      | `3`     |
-| `zookeeper.resources`        | Explicit CPU and memory configuration. When omitted, the preset defined in `resourcesPreset` is applied. | `object`   | `{}`    |
-| `zookeeper.resources.cpu`    | CPU available to each replica.                                                                           | `quantity` | `""`    |
-| `zookeeper.resources.memory` | Memory (RAM) available to each replica.                                                                  | `quantity` | `""`    |
-| `zookeeper.resourcesPreset`  | Default sizing preset used when `resources` is omitted.                                                  | `string`   | `small` |
-| `zookeeper.size`             | Persistent Volume size for ZooKeeper.                                                                    | `quantity` | `5Gi`   |
-| `zookeeper.storageClass`     | StorageClass used to store the ZooKeeper data.                                                           | `string`   | `""`    |
+| Name                         | Description                                                                                              | Type       | Value    |
+| ---------------------------- | -------------------------------------------------------------------------------------------------------- | ---------- | -------- |
+| `zookeeper`                  | ZooKeeper configuration.                                                                                 | `object`   | `{}`     |
+| `zookeeper.replicas`         | Number of ZooKeeper replicas.                                                                            | `int`      | `3`      |
+| `zookeeper.resources`        | Explicit CPU and memory configuration. When omitted, the preset defined in `resourcesPreset` is applied. | `object`   | `{}`     |
+| `zookeeper.resources.cpu`    | CPU available to each replica.                                                                           | `quantity` | `""`     |
+| `zookeeper.resources.memory` | Memory (RAM) available to each replica.                                                                  | `quantity` | `""`     |
+| `zookeeper.resourcesPreset`  | Default sizing preset used when `resources` is omitted.                                                  | `string`   | `medium` |
+| `zookeeper.size`             | Persistent Volume size for ZooKeeper.                                                                    | `quantity` | `5Gi`    |
+| `zookeeper.storageClass`     | StorageClass used to store the ZooKeeper data.                                                           | `string`   | `""`     |
 
 
 ## Parameter examples and reference

packages/apps/kafka/values.schema.json

@@ -92,7 +92,7 @@
         "resourcesPreset": {
           "description": "Default sizing preset used when `resources` is omitted.",
           "type": "string",
-          "default": "small",
+          "default": "medium",
           "enum": [
             "nano",
             "micro",
@@ -176,7 +176,7 @@
         "resourcesPreset": {
           "description": "Default sizing preset used when `resources` is omitted.",
           "type": "string",
-          "default": "small",
+          "default": "medium",
           "enum": [
             "nano",
             "micro",

packages/apps/kafka/values.yaml

@@ -61,7 +61,7 @@ topics: []
 kafka:
   replicas: 3
   resources: {}
-  resourcesPreset: "small"
+  resourcesPreset: "medium"
   size: 10Gi
   storageClass: ""
 
@@ -80,6 +80,6 @@ kafka:
 zookeeper:
   replicas: 3
   resources: {}
-  resourcesPreset: "small"
+  resourcesPreset: "medium"
   size: 5Gi
   storageClass: ""

packages/system/kafka-rd/cozyrds/kafka.yaml

@@ -8,7 +8,7 @@ spec:
     plural: kafkas
     singular: kafka
     openAPISchema: |-
-      {"title":"Chart Values","type":"object","properties":{"external":{"description":"Enable external access from outside the cluster.","type":"boolean","default":false},"topics":{"description":"Topics configuration.","type":"array","default":[],"items":{"type":"object","required":["config","name","partitions","replicas"],"properties":{"config":{"description":"Topic configuration.","type":"object","x-kubernetes-preserve-unknown-fields":true},"name":{"description":"Topic name.","type":"string"},"partitions":{"description":"Number of partitions.","type":"integer"},"replicas":{"description":"Number of replicas.","type":"integer"}}}},"kafka":{"description":"Kafka configuration.","type":"object","default":{},"required":["replicas","resourcesPreset","size","storageClass"],"properties":{"replicas":{"description":"Number of Kafka replicas.","type":"integer","default":3},"resources":{"description":"Explicit CPU and memory configuration. When omitted, the preset defined in `resourcesPreset` is applied.","type":"object","default":{},"properties":{"cpu":{"description":"CPU available to each replica.","pattern":"^(\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))(([KMGTPE]i)|[numkMGTPE]|([eE](\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))))?$","anyOf":[{"type":"integer"},{"type":"string"}],"x-kubernetes-int-or-string":true},"memory":{"description":"Memory (RAM) available to each replica.","pattern":"^(\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))(([KMGTPE]i)|[numkMGTPE]|([eE](\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))))?$","anyOf":[{"type":"integer"},{"type":"string"}],"x-kubernetes-int-or-string":true}}},"resourcesPreset":{"description":"Default sizing preset used when `resources` is omitted.","type":"string","default":"small","enum":["nano","micro","small","medium","large","xlarge","2xlarge"]},"size":{"description":"Persistent Volume size for Kafka.","default":"10Gi","pattern":"^(\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))(([KMGTPE]i)|[numkMGTPE]|([eE](\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))))?$","anyOf":[{"type":"integer"},{"type":"string"}],"x-kubernetes-int-or-string":true},"storageClass":{"description":"StorageClass used to store the Kafka data.","type":"string","default":""}}},"zookeeper":{"description":"ZooKeeper configuration.","type":"object","default":{},"required":["replicas","resourcesPreset","size","storageClass"],"properties":{"replicas":{"description":"Number of ZooKeeper replicas.","type":"integer","default":3},"resources":{"description":"Explicit CPU and memory configuration. When omitted, the preset defined in `resourcesPreset` is applied.","type":"object","default":{},"properties":{"cpu":{"description":"CPU available to each replica.","pattern":"^(\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))(([KMGTPE]i)|[numkMGTPE]|([eE](\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))))?$","anyOf":[{"type":"integer"},{"type":"string"}],"x-kubernetes-int-or-string":true},"memory":{"description":"Memory (RAM) available to each replica.","pattern":"^(\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))(([KMGTPE]i)|[numkMGTPE]|([eE](\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))))?$","anyOf":[{"type":"integer"},{"type":"string"}],"x-kubernetes-int-or-string":true}}},"resourcesPreset":{"description":"Default sizing preset used when `resources` is omitted.","type":"string","default":"small","enum":["nano","micro","small","medium","large","xlarge","2xlarge"]},"size":{"description":"Persistent Volume size for ZooKeeper.","default":"5Gi","pattern":"^(\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))(([KMGTPE]i)|[numkMGTPE]|([eE](\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))))?$","anyOf":[{"type":"integer"},{"type":"string"}],"x-kubernetes-int-or-string":true},"storageClass":{"description":"StorageClass used to store the ZooKeeper data.","type":"string","default":""}}}}}
+      {"title":"Chart Values","type":"object","properties":{"external":{"description":"Enable external access from outside the cluster.","type":"boolean","default":false},"topics":{"description":"Topics configuration.","type":"array","default":[],"items":{"type":"object","required":["config","name","partitions","replicas"],"properties":{"config":{"description":"Topic configuration.","type":"object","x-kubernetes-preserve-unknown-fields":true},"name":{"description":"Topic name.","type":"string"},"partitions":{"description":"Number of partitions.","type":"integer"},"replicas":{"description":"Number of replicas.","type":"integer"}}}},"kafka":{"description":"Kafka configuration.","type":"object","default":{},"required":["replicas","resourcesPreset","size","storageClass"],"properties":{"replicas":{"description":"Number of Kafka replicas.","type":"integer","default":3},"resources":{"description":"Explicit CPU and memory configuration. When omitted, the preset defined in `resourcesPreset` is applied.","type":"object","default":{},"properties":{"cpu":{"description":"CPU available to each replica.","pattern":"^(\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))(([KMGTPE]i)|[numkMGTPE]|([eE](\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))))?$","anyOf":[{"type":"integer"},{"type":"string"}],"x-kubernetes-int-or-string":true},"memory":{"description":"Memory (RAM) available to each replica.","pattern":"^(\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))(([KMGTPE]i)|[numkMGTPE]|([eE](\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))))?$","anyOf":[{"type":"integer"},{"type":"string"}],"x-kubernetes-int-or-string":true}}},"resourcesPreset":{"description":"Default sizing preset used when `resources` is omitted.","type":"string","default":"medium","enum":["nano","micro","small","medium","large","xlarge","2xlarge"]},"size":{"description":"Persistent Volume size for Kafka.","default":"10Gi","pattern":"^(\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))(([KMGTPE]i)|[numkMGTPE]|([eE](\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))))?$","anyOf":[{"type":"integer"},{"type":"string"}],"x-kubernetes-int-or-string":true},"storageClass":{"description":"StorageClass used to store the Kafka data.","type":"string","default":""}}},"zookeeper":{"description":"ZooKeeper configuration.","type":"object","default":{},"required":["replicas","resourcesPreset","size","storageClass"],"properties":{"replicas":{"description":"Number of ZooKeeper replicas.","type":"integer","default":3},"resources":{"description":"Explicit CPU and memory configuration. When omitted, the preset defined in `resourcesPreset` is applied.","type":"object","default":{},"properties":{"cpu":{"description":"CPU available to each replica.","pattern":"^(\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))(([KMGTPE]i)|[numkMGTPE]|([eE](\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))))?$","anyOf":[{"type":"integer"},{"type":"string"}],"x-kubernetes-int-or-string":true},"memory":{"description":"Memory (RAM) available to each replica.","pattern":"^(\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))(([KMGTPE]i)|[numkMGTPE]|([eE](\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))))?$","anyOf":[{"type":"integer"},{"type":"string"}],"x-kubernetes-int-or-string":true}}},"resourcesPreset":{"description":"Default sizing preset used when `resources` is omitted.","type":"string","default":"medium","enum":["nano","micro","small","medium","large","xlarge","2xlarge"]},"size":{"description":"Persistent Volume size for ZooKeeper.","default":"5Gi","pattern":"^(\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))(([KMGTPE]i)|[numkMGTPE]|([eE](\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))))?$","anyOf":[{"type":"integer"},{"type":"string"}],"x-kubernetes-int-or-string":true},"storageClass":{"description":"StorageClass used to store the ZooKeeper data.","type":"string","default":""}}}}}
   release:
     prefix: kafka-
     labels: