RuntimeClass fields

Reference for Controller kind: RuntimeClass. Attach and microservice binding are on Runtime classes.

handler is a top-level field, beside metadata. Describe uses the same shape and has no spec block. Author the root handler so a later describe round-trips.

Deploy

apiVersion: datasance.com/v3 # required, string
kind: RuntimeClass # required, string
metadata:
  name: wasmtime # required, string. Lowercase alphanumeric
  namespace: my-ecn # no, string
handler: wasmtime # required, string. Document root. Not under spec. spin, slight, lunatic, wws, wasmedge, wasmer, wasmtime, or edgelet-wasmtime

Not deployed

These fields come back from describe. Leave them out of the file you pass to deploy.

status:
  linkedAgents: [] # describe only

Fields

Field	Location	Required	Description
metadata.name	metadata	Yes	Controller resource name. Lowercase alphanumeric. Often the same string as handler.
handler	document root	Yes	Runtime key. The microservice copies it to container.runtime.

Handler keys

The key must match a shim installed on the Edgelet node. Deploying this object does not install the binary. See Container engines.

Handler	Shim
spin	Spin
slight	Slight
lunatic	Lunatic
wws	Wasmer WWS
wasmedge	WasmEdge
wasmer	Wasmer
wasmtime	Wasmtime
edgelet-wasmtime	Edgelet Wasmtime

Validation

Condition	Error
Missing metadata.name	Name must be specified.
Invalid name	Lowercase alphanumeric.
Missing handler	handler must be specified.

The Controller can reject an unknown handler or a link request with 400 or 409.

Describe

kind: RuntimeClass
metadata:
  name: wasmtime
  namespace: my-ecn
handler: wasmtime
status:
  linkedAgents:
    - edge-01

Attach and detach accept Edgelet node names. The link API accepts Edgelet nodes.

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