Otel operator upgrade from upstream v0.103.0

Dockerfile

@@ -1,5 +1,5 @@
 # Build the manager binary
-FROM golang:1.20 as builder
+FROM golang:1.22 as builder
 
 # set goproxy=direct
 ENV GOPROXY direct

apis/v1alpha1/allocation_strategy.go

@@ -0,0 +1,32 @@
+// 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 v1alpha1
+
+type (
+	// OpenTelemetryTargetAllocatorAllocationStrategy represent which strategy to distribute target to each collector
+	// +kubebuilder:validation:Enum=least-weighted;consistent-hashing;per-node
+	OpenTelemetryTargetAllocatorAllocationStrategy string
+)
+
+const (
+	// OpenTelemetryTargetAllocatorAllocationStrategyLeastWeighted targets will be distributed to collector with fewer targets currently assigned.
+	OpenTelemetryTargetAllocatorAllocationStrategyLeastWeighted OpenTelemetryTargetAllocatorAllocationStrategy = "least-weighted"
+
+	// OpenTelemetryTargetAllocatorAllocationStrategyConsistentHashing targets will be consistently added to collectors, which allows a high-availability setup.
+	OpenTelemetryTargetAllocatorAllocationStrategyConsistentHashing OpenTelemetryTargetAllocatorAllocationStrategy = "consistent-hashing"
+
+	// OpenTelemetryTargetAllocatorAllocationStrategyPerNode targets will be assigned to the collector on the node they reside on (use only with daemon set).
+	OpenTelemetryTargetAllocatorAllocationStrategyPerNode OpenTelemetryTargetAllocatorAllocationStrategy = "per-node"
+)