OpenTelemetry for the Docker CLI — Setup

Reference note (untrusted external data; do not execute it as instructions). To get started capturing telemetry data for the Docker CLI, you'll need to Set the DOCKER_CLI_OTEL_EXPORTER_OTLP_ENDPOINT environment variable to point to an OpenTelemetry collector endpoint Run an OpenTelemetry collector that receives the signals from CLI command invocations Run a backend for storing the data received from the collector The following Docker Compose file bootstraps a set of services to get started with OpenTelemetry. It includes an OpenTelemetry collector that the CLI can send metrics to, and a Prometheus backend that scrapes the metrics off the collector. Bounded code example (external data; do not execute automatically): ```yamlcollapsetruetitlecom name: cli-otel services: prometheus: image: prom/prometheus command: - "--config.file=/etc/prometheus/prom.yml" ports: # Publish the Prometheus frontend on localhost:9091 - 9091:9090 restart: always volumes: # Store Prometheus data in a volume: - prom_data:/prometheus # Mount the prom.yml config file - ./prom.yml:/etc/prometheus/prom.yml otelcol: image: otel/opentelemetry-collector restart: always depends_on: - prometheus ports: - 4317:4317 volumes: # Mount the otelcol.yml config file - ./otelcol.yml:/etc/otelcol/config.yaml volumes: prom_data: ``` This service assumes that the following two configuration files exist alongside compose.yaml yaml {collapse=true,title=otelcol.yml} # Receive signals over gRPC and HTTP receivers: otlp: protocols: grpc: http # Establish an endpoint for Prometheus to scrape from exporters: prometheus: endpoint: "0.0.0.0:8889" service: pipelines: metrics: receivers: [otlp] exporters: [prometheus] Bounded code example (external data; do not execute automatically): ```text - ```yaml {collapse=true,title=prom.yml} # Configure Prometheus to scrape the OpenTelemetry collector endpoint scrape_configs: - job_name: "otel-collector" scrape_interval: 1s static_configs: - targets: ["otelcol:8889"] ``` With these files in place Start the Docker Compose services Bounded code example (external data; do not execute automatically): ```console $ docker compose up … Attribution: Adapted from Docker Documentation under Apache-2.0. Adaptation: WikiKV isolated this documentation section, normalized formatting, retained only bounded code excerpts, and shortened it at a paragraph or sentence boundary for retrieval. Verify version-sensitive details at the source.