{ "description": "ResourceClaimSpec defines what is being requested in a ResourceClaim and how to configure it.", "properties": { "devices": { "description": "DeviceClaim defines how to request devices with a ResourceClaim.", "properties": { "config": { "description": "This field holds configuration for multiple potential drivers which could satisfy requests in this claim. It is ignored while allocating the claim.", "items": { "description": "DeviceClaimConfiguration is used for configuration parameters in DeviceClaim.", "properties": { "opaque": { "description": "OpaqueDeviceConfiguration contains configuration parameters for a driver in a format defined by the driver vendor.", "properties": { "driver": { "description": "Driver is used to determine which kubelet plugin needs to be passed these configuration parameters.\n\nAn admission policy provided by the driver developer could use this to decide whether it needs to validate them.\n\nMust be a DNS subdomain and should end with a DNS domain owned by the vendor of the driver.", "type": "string" }, "parameters": { "description": "RawExtension is used to hold extensions in external versions.\n\nTo use this, make a field which has RawExtension as its type in your external, versioned struct, and Object in your internal struct. You also need to register your various plugin types.\n\n// Internal package:\n\n\ttype MyAPIObject struct {\n\t\truntime.TypeMeta `json:\",inline\"`\n\t\tMyPlugin runtime.Object `json:\"myPlugin\"`\n\t}\n\n\ttype PluginA struct {\n\t\tAOption string `json:\"aOption\"`\n\t}\n\n// External package:\n\n\ttype MyAPIObject struct {\n\t\truntime.TypeMeta `json:\",inline\"`\n\t\tMyPlugin runtime.RawExtension `json:\"myPlugin\"`\n\t}\n\n\ttype PluginA struct {\n\t\tAOption string `json:\"aOption\"`\n\t}\n\n// On the wire, the JSON will look something like this:\n\n\t{\n\t\t\"kind\":\"MyAPIObject\",\n\t\t\"apiVersion\":\"v1\",\n\t\t\"myPlugin\": {\n\t\t\t\"kind\":\"PluginA\",\n\t\t\t\"aOption\":\"foo\",\n\t\t},\n\t}\n\nSo what happens? Decode first uses json or yaml to unmarshal the serialized data into your external MyAPIObject. That causes the raw JSON to be stored, but not unpacked. The next step is to copy (using pkg/conversion) into the internal struct. The runtime package's DefaultScheme has conversion functions installed which will unpack the JSON stored in RawExtension, turning it into the correct object type, and storing it in the Object. (TODO: In the case where the object is of an unknown type, a runtime.Unknown object will be created and stored.)", "type": "object" } }, "required": [ "driver", "parameters" ], "type": [ "object", "null" ] }, "requests": { "description": "Requests lists the names of requests where the configuration applies. If empty, it applies to all requests.", "items": { "type": [ "string", "null" ] }, "type": [ "array", "null" ], "x-kubernetes-list-type": "atomic" } }, "type": [ "object", "null" ] }, "type": [ "array", "null" ], "x-kubernetes-list-type": "atomic" }, "constraints": { "description": "These constraints must be satisfied by the set of devices that get allocated for the claim.", "items": { "description": "DeviceConstraint must have exactly one field set besides Requests.", "properties": { "matchAttribute": { "description": "MatchAttribute requires that all devices in question have this attribute and that its type and value are the same across those devices.\n\nFor example, if you specified \"dra.example.com/numa\" (a hypothetical example!), then only devices in the same NUMA node will be chosen. A device which does not have that attribute will not be chosen. All devices should use a value of the same type for this attribute because that is part of its specification, but if one device doesn't, then it also will not be chosen.\n\nMust include the domain qualifier.", "type": [ "string", "null" ] }, "requests": { "description": "Requests is a list of the one or more requests in this claim which must co-satisfy this constraint. If a request is fulfilled by multiple devices, then all of the devices must satisfy the constraint. If this is not specified, this constraint applies to all requests in this claim.", "items": { "type": [ "string", "null" ] }, "type": [ "array", "null" ], "x-kubernetes-list-type": "atomic" } }, "type": [ "object", "null" ] }, "type": [ "array", "null" ], "x-kubernetes-list-type": "atomic" }, "requests": { "description": "Requests represent individual requests for distinct devices which must all be satisfied. If empty, nothing needs to be allocated.", "items": { "description": "DeviceRequest is a request for devices required for a claim. This is typically a request for a single resource like a device, but can also ask for several identical devices.\n\nA DeviceClassName is currently required. Clients must check that it is indeed set. It's absence indicates that something changed in a way that is not supported by the client yet, in which case it must refuse to handle the request.", "properties": { "adminAccess": { "description": "AdminAccess indicates that this is a claim for administrative access to the device(s). Claims with AdminAccess are expected to be used for monitoring or other management services for a device. They ignore all ordinary claims to the device with respect to access modes and any resource allocations.\n\nThis is an alpha field and requires enabling the DRAAdminAccess feature gate. Admin access is disabled if this field is unset or set to false, otherwise it is enabled.", "type": [ "boolean", "null" ] }, "allocationMode": { "description": "AllocationMode and its related fields define how devices are allocated to satisfy this request. Supported values are:\n\n- ExactCount: This request is for a specific number of devices.\n This is the default. The exact number is provided in the\n count field.\n\n- All: This request is for all of the matching devices in a pool.\n Allocation will fail if some devices are already allocated,\n unless adminAccess is requested.\n\nIf AlloctionMode is not specified, the default mode is ExactCount. If the mode is ExactCount and count is not specified, the default count is one. Any other requests must specify this field.\n\nMore modes may get added in the future. Clients must refuse to handle requests with unknown modes.", "type": [ "string", "null" ] }, "count": { "description": "Count is used only when the count mode is \"ExactCount\". Must be greater than zero. If AllocationMode is ExactCount and this field is not specified, the default is one.", "format": "int64", "type": [ "integer", "null" ] }, "deviceClassName": { "description": "DeviceClassName references a specific DeviceClass, which can define additional configuration and selectors to be inherited by this request.\n\nA class is required. Which classes are available depends on the cluster.\n\nAdministrators may use this to restrict which devices may get requested by only installing classes with selectors for permitted devices. If users are free to request anything without restrictions, then administrators can create an empty DeviceClass for users to reference.", "type": "string" }, "name": { "description": "Name can be used to reference this request in a pod.spec.containers[].resources.claims entry and in a constraint of the claim.\n\nMust be a DNS label.", "type": "string" }, "selectors": { "description": "Selectors define criteria which must be satisfied by a specific device in order for that device to be considered for this request. All selectors must be satisfied for a device to be considered.", "items": { "description": "DeviceSelector must have exactly one field set.", "properties": { "cel": { "description": "CELDeviceSelector contains a CEL expression for selecting a device.", "properties": { "expression": { "description": "Expression is a CEL expression which evaluates a single device. It must evaluate to true when the device under consideration satisfies the desired criteria, and false when it does not. Any other result is an error and causes allocation of devices to abort.\n\nThe expression's input is an object named \"device\", which carries the following properties:\n - driver (string): the name of the driver which defines this device.\n - attributes (map[string]object): the device's attributes, grouped by prefix\n (e.g. device.attributes[\"dra.example.com\"] evaluates to an object with all\n of the attributes which were prefixed by \"dra.example.com\".\n - capacity (map[string]object): the device's capacities, grouped by prefix.\n\nExample: Consider a device with driver=\"dra.example.com\", which exposes two attributes named \"model\" and \"ext.example.com/family\" and which exposes one capacity named \"modules\". This input to this expression would have the following fields:\n\n device.driver\n device.attributes[\"dra.example.com\"].model\n device.attributes[\"ext.example.com\"].family\n device.capacity[\"dra.example.com\"].modules\n\nThe device.driver field can be used to check for a specific driver, either as a high-level precondition (i.e. you only want to consider devices from this driver) or as part of a multi-clause expression that is meant to consider devices from different drivers.\n\nThe value type of each attribute is defined by the device definition, and users who write these expressions must consult the documentation for their specific drivers. The value type of each capacity is Quantity.\n\nIf an unknown prefix is used as a lookup in either device.attributes or device.capacity, an empty map will be returned. Any reference to an unknown field will cause an evaluation error and allocation to abort.\n\nA robust expression should check for the existence of attributes before referencing them.\n\nFor ease of use, the cel.bind() function is enabled, and can be used to simplify expressions that access multiple attributes with the same domain. For example:\n\n cel.bind(dra, device.attributes[\"dra.example.com\"], dra.someBool && dra.anotherBool)\n\nThe length of the expression must be smaller or equal to 10 Ki. The cost of evaluating it is also limited based on the estimated number of logical steps.", "type": "string" } }, "required": [ "expression" ], "type": [ "object", "null" ] } }, "type": [ "object", "null" ] }, "type": [ "array", "null" ], "x-kubernetes-list-type": "atomic" } }, "required": [ "name", "deviceClassName" ], "type": [ "object", "null" ] }, "type": [ "array", "null" ], "x-kubernetes-list-type": "atomic" } }, "type": [ "object", "null" ] } }, "type": "object", "$schema": "http://json-schema.org/schema#" }