docker-compose.yml

version: "3"
services:
  telegraf:
    image: telegraf:1.17.0
    container_name: telegraf
    restart: always
    environment:
      HOST_PROC: /rootfs/proc
      HOST_SYS: /rootfs/sys
      HOST_ETC: /rootfs/etc
    volumes:
      - ./telegraf.conf:/etc/telegraf/telegraf.conf:ro
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - /sys:/rootfs/sys:ro
      - /proc:/rootfs/proc:ro
      - /etc:/rootfs/etc:ro
    depends_on:
      - otelcollector
  # 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", "--set=service.telemetry.logs.level=debug"]
    volumes:
      - ./otel-collector-config.yml:/etc/otel-collector-config.yml
    depends_on:
      splunk:
        condition: service_healthy