allocation_strategy.go

// Copyright The OpenTelemetry Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package v1beta1

type (
	// TargetAllocatorAllocationStrategy represent a strategy Target Allocator uses to distribute targets to each collector
	// +kubebuilder:validation:Enum=least-weighted;consistent-hashing;per-node
	TargetAllocatorAllocationStrategy string
	// TargetAllocatorFilterStrategy represent a filtering strategy for targets before they are assigned to collectors
	// +kubebuilder:validation:Enum="";relabel-config
	TargetAllocatorFilterStrategy string
)

const (
	// TargetAllocatorAllocationStrategyLeastWeighted targets will be distributed to collector with fewer targets currently assigned.
	TargetAllocatorAllocationStrategyLeastWeighted TargetAllocatorAllocationStrategy = "least-weighted"

	// TargetAllocatorAllocationStrategyConsistentHashing targets will be consistently added to collectors, which allows a high-availability setup.
	TargetAllocatorAllocationStrategyConsistentHashing TargetAllocatorAllocationStrategy = "consistent-hashing"

	// TargetAllocatorAllocationStrategyPerNode targets will be assigned to the collector on the node they reside on (use only with daemon set).
	TargetAllocatorAllocationStrategyPerNode TargetAllocatorAllocationStrategy = "per-node"

	// TargetAllocatorFilterStrategyRelabelConfig targets will be consistently drops targets based on the relabel_config.
	TargetAllocatorFilterStrategyRelabelConfig TargetAllocatorFilterStrategy = "relabel-config"
)