docker-compose.yml

version: "3.7"

services:
  postgres:
    image: "postgres:12.1-alpine"
    restart: always
    environment:
      POSTGRES_USER: "postgres"
      POSTGRES_PASSWORD: "postgres"

  pgbouncer:
    image: "tophfr/pgbouncer:1.12.0"
    restart: always
    environment:
      DEFAULT_HOST: "postgres"
      AUTH__POSTGRES: "postgres"
      CONF__PGBOUNCER__POOL_MODE: "transaction"
      CONF__PGBOUNCER__STATS_USERS: "postgres"
      CONF__PGBOUNCER__IGNORE_STARTUP_PARAMETERS: "extra_float_digits"
    depends_on:
      - postgres

  pgbouncerexporter:
    build:
      context: .
    restart: always
    ports:
      - "9127:9127"
    environment:
      DATABASE_URL: "postgres://postgres:postgres@pgbouncer:5432/pgbouncer?sslmode=disable&binary_parameters=yes"
    depends_on:
      - pgbouncer