Function Specifications

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Function Specifications
- Function.spec

Function Specifications

Learn about Function Specifications.

This document describes the specifications of the Function CRD.

Function.spec

Name	Type	Description	Required
image	string	Image upload path, e.g. demorepo/demofunction:v1	true
build	object	Builder specification for the function	false
imageCredentials	object	Credentials for accessing the image repository, refer to v1.LocalObjectReference	false
serving	object	Serving specification for the function	false
version	string	Function version, e.g. v1.0.0	false
workloadRuntime	string	WorkloadRuntime for Function. Know values: OCIContainer and WasmEdge.Default: OCIContainer	false

Function.spec.build

Name	Type	Description	Required
srcRepo	object	The configuration of the source code repository	true
builder	string	Name of the Builder	false
builderCredentials	object	Credentials for accessing the image repository, refer to v1.LocalObjectReference	false
builderMaxAge	string	The maximum time of finished builders to retain.	false
dockerfile	string	Path to the Dockerfile instructing Shipwright when using the Dockerfile to build images	false
env	map[string]string	Environment variables passed to the buildpacks builder	false
failedBuildsHistoryLimit	integer	The number of failed builders to retain. Default is 1.	false
shipwright	object	Specification of the Shipwright engine	false
successfulBuildsHistoryLimit	integer	The number of successful finished builders to retain. Default is 0.	false
timeout	string	The maximum time for the builder to build the image	false

Function.spec.build.srcRepo

Name	Type	Description	Required
bundleContainer	object	BundleContainer describes the source code bundle container to pull	false
credentials	object	Repository access credentials, refer to v1.LocalObjectReference	false
revision	string	Referencable instances in the repository, such as commit ID and branch name.	false
sourceSubPath	string	The directory of the function in the repository, e.g. functions/function-a/	false
url	string	Source code repository address	false

Function.spec.build.srcRepo.bundleContainer

Name	Type	Description	Required
image	string	The bundleContainer image name	true

Function.spec.build.shipwright

Name	Type	Description	Required
params	[]object	Parameters for the build strategy	false
strategy	object	Strategy references the BuildStrategy to use to build the image	false
timeout	string	The maximum amount of time the shipwright Build should take to execute	false

Function.spec.serving

Name	Type	Description	Required
annotations	map[string]string	Annotations that will be added to the workload	false
bindings	map[string]object	Dapr bindings that the function needs to create and use.	false
hooks	object	Hooks that will be executed before or after the function execution	false
labels	map[string]string	Labels that will be added to the workload	false
outputs	[]object	The outputs which the function will send data to	false
params	map[string]string	Parameters required by the function, will be passed to the function as environment variables	false
pubsub	map[string]object	Dapr pubsub that the function needs to create and use	false
scaleOptions	object	Configuration of auto scaling.	false
states	map[string]object	Dapr state store that the function needs to create and use	false
template	object	Template is a pod template which allows modifying operator generated pod template.	false
timeout	string	Timeout defines the maximum amount of time the Serving should take to execute before the Serving is running	false
tracing	object	Configuration of tracing	false
triggers	object	Triggers used to trigger the function. Refer to Function Trigger.	true
workloadType	string	The type of workload used to run the function, known values are: Deployment, StatefulSet and Job	false

Function.spec.serving.hooks

Name	Type	Description	Required
policy	string	There are two kind of hooks, global hooks and private hooks, the global hooks define in the config file of OpenFunction Controller, the private hooks define in the Function. Policy is the relationship between the global hooks and the private hooks of the function. Known values are: Append: All hooks will be executed, the private pre hooks will execute after the global pre hooks , and the private post hooks will execute before the global post hooks. this is the default policy. Override: Only execute the private hooks.	false
post	[]string	The hooks will be executed after the function execution	false
pre	[]string	The hooks will be executed before the function execution	false

Function.spec.serving.outputs[index]

Name	Type	Description	Required
dapr	object	Dapr output, refer to a exist component or a component defined in bindings or pubsub	false

Function.spec.serving.outputs[index].dapr

Name	Type	Description	Required
name	string	The name of the dapr component	true
metadata	map[string]string	Metadata passed to Dapr	false
operation	string	Operation field tells the Dapr component which operation it should perform, refer to Dapr docs	false
topic	string	When the type is pubsub, you need to set the topic	false
type	string	Type of Dapr component, such as: bindings.kafka, pubsub.rocketmq	false

Function.spec.serving.scaleOptions

Name	Type	Description	Required
keda	object	Configuration about keda autoscaling	false
knative	map[string]string	Knative autiscaling annotations. Refer to Knative autoscaling.	false
maxReplicas	integer	Minimum number of replicas which will scale the resource down to. By default, it scales to 0.	false
minReplicas	integer	Maximum number of replicas which will scale the resource up to.	false

Function.spec.serving.scaleOptions.keda

Name	Type	Description	Required
scaledJob	object	Scale options for job	false
scaledObject	object	Scale options for deployment and statefulset	false
triggers	[]object	Event sources that trigger dynamic scaling of workloads. Refer to kedav1alpha1.ScaleTriggers.	false

Function.spec.serving.scaleOptions.keda.scaledJob

Name	Type	Description	Required
failedJobsHistoryLimit	integer	How many failed jobs should be kept. It defaults to 100.	false
pollingInterval	integer	The pollingInterval is in seconds. This is the interval in which KEDA checks the triggers for the queue length or the stream lag. It defaults to 30 seconds.	false
restartPolicy	string	Restart policy for all containers within the pod. Value options are OnFailure or Never. It defaults to Never.	false
scalingStrategy	object	Select a scaling strategy. Value options are default, custom, or accurate. The default value is default. Refer to kedav1alpha1.ScalingStrategy	false
successfulJobsHistoryLimit	integer	How many completed jobs should be kept. It defaults to 100.	false

Function.spec.serving.scaleOptions.keda.scaledObject

Name	Type	Description	Required
advanced	object	This property specifies whether the target resource (for example, Deployment and StatefulSet) should be scaled back to original replicas count after the ScaledObject is deleted. Default behavior is to keep the replica count at the same number as it is in the moment of ScaledObject deletion. Refer to kedav1alpha1.AdvancedConfig.	false
cooldownPeriod	integer	The cooldownPeriod is in seconds, and it is the period of time to wait after the last trigger activated before scaling back down to 0. It defaults to 300 seconds.	false
pollingInterval	integer	The pollingInterval is in seconds. This is the interval in which KEDA checks the triggers for the queue length or the stream lag. It defaults to 30 seconds.	false

Function.spec.serving.states[key]

Name	Type	Description	Required
spec	object	Dapr state stroe component spec. Refer to Dapr docs.	false

Function.spec.serving.tracing

Name	Type	Description	Required
baggage	map[string]string	Baggage is contextual information that passed between spans. It is a key-value store that resides alongside span context in a trace, making values available to any span created within that trace.	true
enabled	boolean	Wether to enable tracing	true
provider	object	The tracing implementation used to create and send span	true
tags	map[string]string	The tag that needs to be added to the spans	false

Function.spec.serving.tracing.provider

Name	Type	Description	Required
name	string	Tracing provider name, known values are skywalking and opentelemetry	true
exporter	object	Service to collect span for opentelemetry	false
oapServer	string	The skywalking server url	false

Function.spec.serving.tracing.provider.exporter

Name	Type	Description	Required
endpoint	string	The exporter url	true
name	string	The exporter name, known values are otlp, jaeger, and zipkin	true
compression	string	The compression type to use on OTLP trace requests. Options include gzip. By default no compression will be used.	false
headers	string	Key-value pairs separated by commas to pass as request headers on OTLP trace requests.	false
protocol	string	The transport protocol to use on OTLP trace requests. Options include grpc and http/protobuf. Default is grpc.	false
timeout	string	The maximum waiting time, in milliseconds, allowed to send each OTLP trace batch. Default is 10000.	false

Function.spec.serving.triggers

Name	Type	Description	Required
dapr	[]object	List of dapr triggers, refer to dapr bindings or pusub components	false
http	object	The http trigger	false
inputs	[]object	A list of components that the function can get data from	false

Function.spec.serving.triggers.dapr[index]

Name	Type	Description	Required
name	string	The dapr component name	true
topic	string	When the component type is pubsub, you need to set the topic	false
type	string	Type of Dapr component, such as: bindings.kafka, pubsub.rocketmq	false

Function.spec.serving.triggers.http

Name	Type	Description	Required
port	integer	The port the function is listening on, e.g. 8080	false
route	object	Route defines how traffic from the Gateway listener is routed to a function.	false

Function.spec.serving.triggers.http.route

Name	Type	Description	Required
gatewayRef	object	GatewayRef references the Gateway resources that a Route wants	false
hostnames	[]string	Hostnames defines a set of hostname that should match against the HTTP Host header to select a HTTPRoute to process the request.	false
rules	[]object	Rules are a list of HTTP matchers, filters and actions. Refer to HTTPRouteRule.	false

Function.spec.serving.triggers.http.route.gatewayRef

Name	Type	Description	Required
name	string	The name of the gateway	true
namespace	string	The namespace of the gateway	true

Function.spec.serving.triggers.inputs[index]

Name	Type	Description	Required
dapr	object	A dapr component that function can get data from. Now just support dapr state store	true

Function.spec.serving.triggers.inputs[index].dapr

Name	Type	Description	Required
name	string	The dapr component name, maybe a exist component or a component defined in state	true
type	string	The dapr component type, such as state.redis	false

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