docker-compose.dev.yml

# docker-compose.dev.yml
# Development overlay — extends docker-compose.yml to build the image from source
# instead of pulling from DockerHub, and adds a Jaeger all-in-one backend so
# distributed tracing works out of the box in local dev.
#
# Usage (from the repo root):
#   docker compose -f docker-compose.yml -f docker-compose.dev.yml build
#   docker compose -f docker-compose.yml -f docker-compose.dev.yml up
#   docker compose -f docker-compose.yml -f docker-compose.dev.yml up --build
#
# Jaeger UI: http://localhost:16686
services:
  knot-server:
    build: .
    environment:
      # Tracing on by default in dev; spans are exported to the Jaeger service
      # over OTLP gRPC. Override KNOT_SERVER_TRACING_ENABLED=false to opt out.
      - KNOT_SERVER_TRACING_ENABLED=${KNOT_SERVER_TRACING_ENABLED:-true}
      - KNOT_SERVER_OTLP_ENDPOINT=http://jaeger:4317
    depends_on:
      jaeger:
        condition: service_started

  jaeger:
    image: jaegertracing/all-in-one:1.62.0
    ports:
      - "16686:16686"   # Jaeger UI + query API
      - "4317:4317"     # OTLP gRPC ingest
    environment:
      - COLLECTOR_OTLP_ENABLED=true