configs/rename-metric-attributes.yaml

# Copyright 2023 Google LLC
#
# 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
#
#      https:#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.

# rename-metric-attributes.yaml: this config renames metric attributes
# which are reserved. If your app exports metrics with these
# attributes, rename them with this config to avoid rejected API
# requests.

receivers:
  otlp:
    protocols:
      grpc:
        endpoint: 0.0.0.0:4317
      http:
        endpoint: 0.0.0.0:4318

processors:
  # automatically detect Cloud Run resource metadata
  resourcedetection:
    detectors: [env, gcp]
    timeout: 2s
    override: false

  transform:
    # "location", "cluster", "namespace", "job", "instance", and "project_id" are reserved, and
    # metrics containing these labels will be rejected.  Prefix them with exported_ to prevent this.
    metric_statements:
    - context: datapoint
      statements:
      - set(attributes["exported_location"], attributes["location"])
      - delete_key(attributes, "location")
      - set(attributes["exported_cluster"], attributes["cluster"])
      - delete_key(attributes, "cluster")
      - set(attributes["exported_namespace"], attributes["namespace"])
      - delete_key(attributes, "namespace")
      - set(attributes["exported_job"], attributes["job"])
      - delete_key(attributes, "job")
      - set(attributes["exported_instance"], attributes["instance"])
      - delete_key(attributes, "instance")
      - set(attributes["exported_project_id"], attributes["project_id"])
      - delete_key(attributes, "project_id")

exporters:
  googlemanagedprometheus: # Note: this is intentionally left blank

extensions:
  health_check:
    endpoint: 0.0.0.0:13133

service:
  extensions: [health_check]
  pipelines:
    metrics:
      receivers: [otlp]
      processors: [resourcedetection, transform]
      exporters: [googlemanagedprometheus]