cozystack/packages/apps/kafka/values.schema.json

{
  "title": "Chart Values",
  "type": "object",
  "x-cozystack-name": {
    "type": "string",
    "description": "Kafka cluster name. The KRaft controller pods are named `kafka-\u003cname\u003e-c-\u003chash\u003e-\u003cid\u003e` with an 8-character hash, and that pod hostname must fit the 63-character DNS-1123 label limit even for the smallest cluster.",
    "maxLength": 44
  },
  "properties": {
    "external": {
      "description": "Enable external access from outside the cluster.",
      "type": "boolean",
      "default": false
    },
    "tls": {
      "description": "TLS configuration. Strimzi manages the cluster PKI automatically (no cert-manager is involved for this chart): the operator auto-creates `\u003crelease\u003e-cluster-ca-cert` and `\u003crelease\u003e-clients-ca-cert` secrets, both exposed for client trust setup. The internal TLS listener on 9093 is always on; this toggle only controls the external listener on 9094.",
      "type": "object",
      "default": {},
      "properties": {
        "enabled": {
          "description": "Enable TLS on the external listener. When unset, inherits the value of `external` (TLS is on when external access is enabled). Warning: setting this to false while external is true exposes Kafka over plaintext on a public IP via LoadBalancer. Strimzi does not provide authentication on this listener unless SCRAM, mTLS, or OAuth is separately configured. Use only in controlled networks.",
          "type": "boolean"
        }
      }
    },
    "version": {
      "description": "Kafka version to deploy. Upgrade-only: once a cluster's KRaft metadata is at a given version, Strimzi refuses an in-place downgrade, so lowering this on a running cluster (e.g. v3.9 back to v3.8) leaves the Kafka CR stuck in a reconcile error. Pick the target version at creation and only ever raise it.",
      "type": "string",
      "default": "v3.9",
      "enum": [
        "v3.9",
        "v3.8"
      ]
    },
    "topics": {
      "description": "Topics configuration.",
      "type": "array",
      "default": [],
      "items": {
        "type": "object",
        "required": [
          "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": {
        "controllerStorageSize": {
          "description": "Persistent Volume size for KRaft controller metadata (used during ZK-to-KRaft migration).",
          "default": "5Gi",
          "pattern": "^(\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))(([KMGTPE]i)|[numkMGTPE]|([eE](\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))))?$",
          "anyOf": [
            {
              "type": "integer"
            },
            {
              "type": "string"
            }
          ],
          "x-kubernetes-int-or-string": true
        },
        "replicas": {
          "description": "Number of Kafka replicas.",
          "type": "integer",
          "default": 3
        },
        "resources": {
          "description": "Explicit CPU and memory configuration. When omitted, the preset defined in `resourcesPreset` is applied.",
          "type": "object",
          "default": {},
          "properties": {
            "cpu": {
              "description": "CPU available to each replica.",
              "pattern": "^(\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))(([KMGTPE]i)|[numkMGTPE]|([eE](\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))))?$",
              "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]+))))?$",
              "anyOf": [
                {
                  "type": "integer"
                },
                {
                  "type": "string"
                }
              ],
              "x-kubernetes-int-or-string": true
            }
          }
        },
        "resourcesPreset": {
          "description": "Default sizing preset used when `resources` is omitted.",
          "type": "string",
          "default": "c1.small",
          "enum": [
            "t1.nano",
            "t1.micro",
            "t1.small",
            "t1.medium",
            "t1.large",
            "t1.xlarge",
            "t1.2xlarge",
            "t1.4xlarge",
            "c1.nano",
            "c1.micro",
            "c1.small",
            "c1.medium",
            "c1.large",
            "c1.xlarge",
            "c1.2xlarge",
            "c1.4xlarge",
            "s1.nano",
            "s1.micro",
            "s1.small",
            "s1.medium",
            "s1.large",
            "s1.xlarge",
            "s1.2xlarge",
            "s1.4xlarge",
            "u1.nano",
            "u1.micro",
            "u1.small",
            "u1.medium",
            "u1.large",
            "u1.xlarge",
            "u1.2xlarge",
            "u1.4xlarge",
            "m1.nano",
            "m1.micro",
            "m1.small",
            "m1.medium",
            "m1.large",
            "m1.xlarge",
            "m1.2xlarge",
            "m1.4xlarge",
            "nano",
            "micro",
            "small",
            "medium",
            "large",
            "xlarge",
            "2xlarge"
          ]
        },
        "size": {
          "description": "Persistent Volume size for Kafka.",
          "default": "10Gi",
          "pattern": "^(\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))(([KMGTPE]i)|[numkMGTPE]|([eE](\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))))?$",
          "anyOf": [
            {
              "type": "integer"
            },
            {
              "type": "string"
            }
          ],
          "x-kubernetes-int-or-string": true
        },
        "storageClass": {
          "description": "StorageClass used to store the Kafka data.",
          "type": "string",
          "default": "",
          "x-kubernetes-validations": [
            {
              "rule": "self == oldSelf",
              "message": "storageClass is immutable"
            }
          ],
          "x-cozystack-options": {
            "source": "storageclass"
          }
        }
      }
    }
  }
}