# Models

## The Status object

```json
{"openapi":"3.0.3","info":{"title":"PCD-K Cluster API","version":"v1beta1"},"components":{"schemas":{"Status":{"type":"object","properties":{"apiVersion":{"type":"string"},"kind":{"type":"string"},"metadata":{"type":"object","description":"Always present; typically empty (`{}`)."},"status":{"type":"string","enum":["Success","Failure"]},"message":{"type":"string","description":"Human-readable description of the error."},"reason":{"type":"string","description":"Machine-readable reason. Common values: `NotFound`, `AlreadyExists`, `BadRequest`, `Unauthorized`, `Forbidden`, `Invalid`.\n"},"details":{"type":"object","description":"Additional error context. Present on `NotFound` (includes `name`, `group`, `kind`) and `Invalid` / `422` responses (includes `causes` with per-field errors).\n","properties":{"name":{"type":"string","description":"Name of the resource involved."},"group":{"type":"string","description":"API group of the resource (e.g. `cluster.x-k8s.io`)."},"kind":{"type":"string","description":"Resource kind (e.g. `clusters`)."},"causes":{"type":"array","description":"Per-field validation errors (present on `422` responses).","items":{"type":"object","properties":{"reason":{"type":"string"},"message":{"type":"string"},"field":{"type":"string"}}}}}},"code":{"type":"integer","description":"HTTP status code."}}}}}}
```

## The ClusterRequest object

```json
{"openapi":"3.0.3","info":{"title":"PCD-K Cluster API","version":"v1beta1"},"components":{"schemas":{"ClusterRequest":{"type":"object","required":["apiVersion","kind","metadata","spec"],"properties":{"apiVersion":{"type":"string","enum":["cluster.x-k8s.io/v1beta1"]},"kind":{"type":"string","enum":["Cluster"]},"metadata":{"type":"object","required":["name"],"properties":{"name":{"type":"string"}}},"spec":{"type":"object","required":["topology"],"properties":{"controlPlaneEndpoint":{"type":"object","description":"API server endpoint — webhook-generated from `deploymentUnit` variables, not set by the user.\nFormat: `<cluster-name>.<keystone-domain>-<keystone-tenant>.k8s.<du-name>.<du-domain>`.\nUse this host:port to reach the workload cluster's Kubernetes API.\n","properties":{"host":{"type":"string"},"port":{"type":"integer"}}},"topology":{"type":"object","required":["version","workers","variables"],"properties":{"version":{"type":"string","description":"Kubernetes version (no `v` prefix)."},"class":{"type":"string","enum":["openstack-default-v1","byoh-default-v1"],"description":"Webhook-resolved from `infrastructure.type` and `deploymentUnit.type` — omit this field.\nSet `infrastructure.type: byoh` in variables to use `byoh-default-v1`; otherwise `openstack-default-v1` is used.\n"},"classNamespace":{"type":"string","enum":["kaapi"],"description":"Webhook-set to `kaapi` — omit this field."},"workers":{"type":"object","properties":{"machineDeployments":{"type":"array","items":{"$ref":"#/components/schemas/MachineDeployment"}}}},"variables":{"type":"array","description":"Each entry is `{ name: <variable>, value: <object> }`.\nThe webhook manages `kubeadmConfigFiles`, `customSecurityGroupRules`, and\nsystem-required `apiServerFlags` automatically — do not set these.\n\n| Variable | Schema | Required | Notes |\n|---|---|---|---|\n| `deploymentUnit` | `DeploymentUnitValue` | Always | `name`, `domain`, `region` are required fields |\n| `network` | `NetworkValue` | OpenStack only | `networkID`, `subnetID` UUIDs |\n| `infrastructure` | `InfrastructureValue` | Only for BYOH | Omit entirely for OpenStack |\n| `workerNode` | `WorkerNodeValue` | OpenStack per-pool override | `flavor`, `imageName` required |\n| `rootVolume` | `RootVolumeValue` | Optional, OpenStack | Boot from Cinder volume |\n| `apiServerFlags` | string array | Optional | Merged with system defaults |\n| `controllerManagerFlags` | string array | Optional | — |\n| `schedulerFlags` | string array | Optional | — |\n| `enableSSH` | boolean | Optional, OpenStack | Adds SSH security group rule |\n| `allowedAddressPairs` | string array | Optional, OpenStack | CIDRs for allowed address pairs |\n","items":{"type":"object","required":["name","value"],"properties":{"name":{"type":"string"},"value":{}}}}}}}}}},"MachineDeployment":{"type":"object","required":["name","class"],"properties":{"name":{"type":"string","description":"Pool name — must be unique within the cluster."},"class":{"type":"string","enum":["ost-md","byoh-md"],"description":"`ost-md` for OpenStack worker pools; `byoh-md` for BYOH pools."},"replicas":{"type":"integer","minimum":0,"description":"Fixed replica count. Omit when enabling cluster autoscaler."},"failureDomain":{"type":"string","description":"Virtualized cluster name"},"metadata":{"type":"object","properties":{"annotations":{"type":"object","additionalProperties":{"type":"string"},"description":"Autoscaler annotations — set both to enable, null both to disable:\n- `cluster.x-k8s.io/cluster-api-autoscaler-node-group-min-size`\n- `cluster.x-k8s.io/cluster-api-autoscaler-node-group-max-size`\n"}}},"variables":{"type":"object","description":"Per-pool variable overrides. OpenStack pools use `workerNode` (and optionally\n`rootVolume`) here. BYOH pools do not use overrides.\n","properties":{"overrides":{"type":"array","items":{"type":"object","required":["name","value"],"properties":{"name":{"type":"string","enum":["workerNode","rootVolume","network"]},"value":{}}}}}}}}}}}
```

## The Cluster object

```json
{"openapi":"3.0.3","info":{"title":"PCD-K Cluster API","version":"v1beta1"},"components":{"schemas":{"Cluster":{"allOf":[{"$ref":"#/components/schemas/ClusterRequest"},{"type":"object","properties":{"metadata":{"type":"object","properties":{"namespace":{"type":"string","description":"Tenant namespace the cluster belongs to."},"uid":{"type":"string","format":"uuid"},"resourceVersion":{"type":"string"},"creationTimestamp":{"type":"string","format":"date-time"},"deletionTimestamp":{"type":"string","format":"date-time","description":"Set when deletion is in progress. Present until all finalizers are removed."},"labels":{"type":"object","additionalProperties":{"type":"string"},"description":"Labels set by the webhook and controllers. Do not rely on specific values for business logic."},"finalizers":{"type":"array","items":{"type":"string"},"description":"CAPI finalizers preventing premature deletion."}}},"status":{"type":"object","properties":{"phase":{"type":"string","enum":["Provisioning","Provisioned","Deleting","Failed"]},"controlPlaneReady":{"type":"boolean"},"infrastructureReady":{"type":"boolean"},"failureMessage":{"type":"string","description":"Human-readable error message when `phase` is `Failed`."},"failureDomains":{"type":"object","description":"Map of OpenStack availability zone names to their control-plane eligibility.\nPopulated from the `OpenStackCluster` status after infrastructure is ready.\n","additionalProperties":{"type":"object","properties":{"controlPlane":{"type":"boolean"}}}},"conditions":{"type":"array","description":"Standard CAPI conditions. Key `type` values to watch:\n`Ready`, `ControlPlaneInitialized`, `ControlPlaneReady`,\n`InfrastructureReady`, `TopologyReconciled`.\nAll conditions reach `status: \"True\"` when the cluster is fully provisioned.\n","items":{"type":"object","properties":{"type":{"type":"string"},"status":{"type":"string","enum":["True","False","Unknown"]},"reason":{"type":"string"},"message":{"type":"string"},"lastTransitionTime":{"type":"string","format":"date-time"}}}}}}}}]},"ClusterRequest":{"type":"object","required":["apiVersion","kind","metadata","spec"],"properties":{"apiVersion":{"type":"string","enum":["cluster.x-k8s.io/v1beta1"]},"kind":{"type":"string","enum":["Cluster"]},"metadata":{"type":"object","required":["name"],"properties":{"name":{"type":"string"}}},"spec":{"type":"object","required":["topology"],"properties":{"controlPlaneEndpoint":{"type":"object","description":"API server endpoint — webhook-generated from `deploymentUnit` variables, not set by the user.\nFormat: `<cluster-name>.<keystone-domain>-<keystone-tenant>.k8s.<du-name>.<du-domain>`.\nUse this host:port to reach the workload cluster's Kubernetes API.\n","properties":{"host":{"type":"string"},"port":{"type":"integer"}}},"topology":{"type":"object","required":["version","workers","variables"],"properties":{"version":{"type":"string","description":"Kubernetes version (no `v` prefix)."},"class":{"type":"string","enum":["openstack-default-v1","byoh-default-v1"],"description":"Webhook-resolved from `infrastructure.type` and `deploymentUnit.type` — omit this field.\nSet `infrastructure.type: byoh` in variables to use `byoh-default-v1`; otherwise `openstack-default-v1` is used.\n"},"classNamespace":{"type":"string","enum":["kaapi"],"description":"Webhook-set to `kaapi` — omit this field."},"workers":{"type":"object","properties":{"machineDeployments":{"type":"array","items":{"$ref":"#/components/schemas/MachineDeployment"}}}},"variables":{"type":"array","description":"Each entry is `{ name: <variable>, value: <object> }`.\nThe webhook manages `kubeadmConfigFiles`, `customSecurityGroupRules`, and\nsystem-required `apiServerFlags` automatically — do not set these.\n\n| Variable | Schema | Required | Notes |\n|---|---|---|---|\n| `deploymentUnit` | `DeploymentUnitValue` | Always | `name`, `domain`, `region` are required fields |\n| `network` | `NetworkValue` | OpenStack only | `networkID`, `subnetID` UUIDs |\n| `infrastructure` | `InfrastructureValue` | Only for BYOH | Omit entirely for OpenStack |\n| `workerNode` | `WorkerNodeValue` | OpenStack per-pool override | `flavor`, `imageName` required |\n| `rootVolume` | `RootVolumeValue` | Optional, OpenStack | Boot from Cinder volume |\n| `apiServerFlags` | string array | Optional | Merged with system defaults |\n| `controllerManagerFlags` | string array | Optional | — |\n| `schedulerFlags` | string array | Optional | — |\n| `enableSSH` | boolean | Optional, OpenStack | Adds SSH security group rule |\n| `allowedAddressPairs` | string array | Optional, OpenStack | CIDRs for allowed address pairs |\n","items":{"type":"object","required":["name","value"],"properties":{"name":{"type":"string"},"value":{}}}}}}}}}},"MachineDeployment":{"type":"object","required":["name","class"],"properties":{"name":{"type":"string","description":"Pool name — must be unique within the cluster."},"class":{"type":"string","enum":["ost-md","byoh-md"],"description":"`ost-md` for OpenStack worker pools; `byoh-md` for BYOH pools."},"replicas":{"type":"integer","minimum":0,"description":"Fixed replica count. Omit when enabling cluster autoscaler."},"failureDomain":{"type":"string","description":"Virtualized cluster name"},"metadata":{"type":"object","properties":{"annotations":{"type":"object","additionalProperties":{"type":"string"},"description":"Autoscaler annotations — set both to enable, null both to disable:\n- `cluster.x-k8s.io/cluster-api-autoscaler-node-group-min-size`\n- `cluster.x-k8s.io/cluster-api-autoscaler-node-group-max-size`\n"}}},"variables":{"type":"object","description":"Per-pool variable overrides. OpenStack pools use `workerNode` (and optionally\n`rootVolume`) here. BYOH pools do not use overrides.\n","properties":{"overrides":{"type":"array","items":{"type":"object","required":["name","value"],"properties":{"name":{"type":"string","enum":["workerNode","rootVolume","network"]},"value":{}}}}}}}}}}}
```

## The MachineDeployment object

```json
{"openapi":"3.0.3","info":{"title":"PCD-K Cluster API","version":"v1beta1"},"components":{"schemas":{"MachineDeployment":{"type":"object","required":["name","class"],"properties":{"name":{"type":"string","description":"Pool name — must be unique within the cluster."},"class":{"type":"string","enum":["ost-md","byoh-md"],"description":"`ost-md` for OpenStack worker pools; `byoh-md` for BYOH pools."},"replicas":{"type":"integer","minimum":0,"description":"Fixed replica count. Omit when enabling cluster autoscaler."},"failureDomain":{"type":"string","description":"Virtualized cluster name"},"metadata":{"type":"object","properties":{"annotations":{"type":"object","additionalProperties":{"type":"string"},"description":"Autoscaler annotations — set both to enable, null both to disable:\n- `cluster.x-k8s.io/cluster-api-autoscaler-node-group-min-size`\n- `cluster.x-k8s.io/cluster-api-autoscaler-node-group-max-size`\n"}}},"variables":{"type":"object","description":"Per-pool variable overrides. OpenStack pools use `workerNode` (and optionally\n`rootVolume`) here. BYOH pools do not use overrides.\n","properties":{"overrides":{"type":"array","items":{"type":"object","required":["name","value"],"properties":{"name":{"type":"string","enum":["workerNode","rootVolume","network"]},"value":{}}}}}}}}}}}
```


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