docker-compose.yml

version: "3"
services:
  # Sample bash script producing logs.
  logging:
    image: bash:latest
    container_name: logging
    command: 'bash -c "while(true) do echo \"$$(date) new message\" >> /output/file.log ; sleep 1; done"'
    depends_on:
      - otelcollector
    volumes:
      - ./output:/output
  # Splunk Enterprise server:
  splunk:
    image: splunk/splunk:latest
    container_name: splunk
    environment:
      - SPLUNK_START_ARGS=--accept-license
      - SPLUNK_HEC_TOKEN=00000000-0000-0000-0000-0000000000000
      - SPLUNK_PASSWORD=changeme
    ports:
      - 18000:8000
    healthcheck:
      test: ['CMD', 'curl', '-f', 'http://localhost:8000']
      interval: 5s
      timeout: 5s
      retries: 20
    volumes:
      - ./splunk.yml:/tmp/defaults/default.yml
      - /opt/splunk/var
      - /opt/splunk/etc
  # OpenTelemetry Collector
  otelcollector:
    image:  quay.io/signalfx/splunk-otel-collector:latest
    container_name: otelcollector
    command: ["--config=/etc/otel-collector-config.yml"]
    volumes:
      - ./otel-collector-config.yml:/etc/otel-collector-config.yml
      - ./output:/output
    depends_on:
      splunk:
        condition: service_healthy
    ports:
      - 18088:8088