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KTAPolicy Custom Resource Definition (CRD)

Example

apiVersion: research.dynatrace.com/v1alpha1
kind: KtaPolicy
metadata:
  name: <name>
spec:
  ... # see below

spec

Field Name Type Description Default Constraint Required
behavior object Policy behavior. Yes
scaleDriver object Scale Driver. Different fields may be required, depending on the type. These fields are marked with n/a. Check the description to see if the field is required for a specific Scale Driver. Currently, a Scale Driver must not be updated. Yes

behavior

Field Name Type Description Default Constraint Required
maxParallelism integer Maximum parallelism of each topology node. Must be greater than or equal to the minimum parallelism. 2147483647 No
minParallelism integer Minimum parallelism of each topology node. 1 No
reconciliationIntervalSeconds integer Reconciliation interval in seconds. 30 No
resultHistoryLength integer Maximum number of past results that are provided to UDFs. 2147483647 No
scaleDownStrategy object Strategy that should be applied when the plan UDF triggers a scale down. NoStrategy No
scaleUpStrategy object Strategy that should be applied when the plan UDF triggers a scale up. NoStrategy No
udfs object UDFs of the autoscaling algorithm. Yes

scaleDownStrategy

Field Name Type Description Default Constraint Required
args string Arguments that configure the scale strategy. Arguments are always passed as string. The format and semantics of the arguments differ based on the scale strategy. No
type string Scale strategy. NoStrategy Yes

scaleUpStrategy

Field Name Type Description Default Constraint Required
args string Arguments that configure the scale strategy. Arguments are always passed as string. The format and semantics of the arguments differ based on the scale strategy. No
type string Scale strategy. NoStrategy Yes

udfs

Field Name Type Description Default Constraint Required
analyzeEndpoint string Analyze UDF endpoint. ^(http|https).* No
monitorEndpoint string Monitor UDF endpoint. ^(http|https).* Yes
planEndpoint string Plan UDF endpoint. ^(http|https).* Yes

scaleDriver

Field Name Type Description Default Constraint Required
flinkJobDeploymentType string Flink job deployment type to determine the required number of task manager deployments. Required for Flink Scale Driver. SharedTaskSlots, StreamingGraphNodePerTaskSlot n/a
flinkJobId string ID of the job to be scaled. Required for Flink Scale Driver. n/a
flinkJobManagerBaseUrl string Job manager base URL. Required for Flink Scale Driver. ^(http|https).* n/a
flinkTaskManagerDeploymentName string Name of the task manager deployment (Kubernetes API version: v1) to automatically scale the number of task managers with the parallelism. Each task manager must contain only a single task slot, this is, one task manager with 1 slot maps to a single replica of the deployment. If not set, the number of task managers has to be scaled externally, e.g., by using the Flink Kubernetes Operator. n/a
flinkTopology array Topology nodes (Flink Streaming Graph Nodes) in topologically sorted order. Required for Flink Scale Driver. n/a
genericKubernetesTopology array Topology nodes in topologically sorted order. Required for GenericKubernetes Scale Driver. n/a
type string Scale driver type. Flink, GenericKubernetes Yes

flinkTopology

Field Name Type Description Default Constraint Required
id string Operator ID. Yes

genericKubernetesTopology

Field Name Type Description Default Constraint Required
kind string Kubernetes resource kind. Kubernetes API versions: Deployment -- v1. Deployment Yes
name string Kubernetes resource name. Yes