docker-compose.yml

version: "3.5"

services:
  api01: &api
    image: renatolfc/ferrugem:0.1
    command: /app/rinha -d "postgresql://%2Fvar%2Frun%2Fpostgresql/rinha?user=postgres&password=postgres" --min-pool 2 --max-pool 2
    hostname: api01
    user: "999:999"
    environment:
      - PORT=9997
    ulimits:
      nofile:
        soft: 1000000
        hard: 1000000
    network_mode: host
    depends_on:
      postgres:
        condition: service_healthy
    deploy:
      resources:
        limits:
          cpus: "0.15"
          memory: "8MB"
    restart: always
    volumes:
      - shared:/var/run/postgresql

  api02:
    <<: *api
    hostname: api02
    environment:
      - PORT=9998

  balanco:
    image: renatolfc/ferrugem:0.1
    restart: always
    depends_on:
      - api01
      - api02
    environment:
      - PORT=9999
      - SERVERS=127.0.0.1:9997,127.0.0.1:9998
    command: ["/app/balanço"]
    network_mode: host
    deploy:
      resources:
        limits:
          cpus: "0.42"
          memory: "8MB"

  postgres:
    image: postgres:latest
    hostname: postgres
    environment:
      - POSTGRES_PASSWORD=postgres
      - POSTGRES_USER=postgres
      - POSTGRES_DB=rinha
    volumes:
      - ./init.sql:/docker-entrypoint-initdb.d/init.sql
      - shared:/var/run/postgresql
    command: >
      postgres -c checkpoint_timeout=1200 -c max_wal_size=64MB -c wal_writer_delay=600
               -c wal_buffers=8MB -c log_min_messages='panic' -c log_min_messages='panic'
               -c log_min_error_statement='panic' -c synchronous_commit=off
               -c full_page_writes=0 -c max_connections=64 -c shared_buffers=256MB
               -c work_mem=256MB -c effective_cache_size=200MB
               -c autovacuum_vacuum_scale_factor=.5 -c log_statement=none
               -c log_checkpoints=0 -c log_duration=off
               -c temp_buffers=2MB -c commit_delay=1200
               -c max_parallel_workers=0
    healthcheck:                                     
      test: ["CMD", "pg_isready", "--username", "postgres"]
      interval: 60s
      retries: 10
      start_period: 20s
      start_interval: 1s
    deploy:
      resources:
        limits:
          cpus: "0.78"
          memory: "128MB"

volumes:
  shared: