Migration image (golang-migrate + MySQL base)

Build the image:

docker build -t unique-migrate -f docker/migrate/Dockerfile .

Run migrations (example):

docker run --rm \
  -e DATABASE_URL='mysql://root:password@tcp(db-host:3306)/your_db?multiStatements=true' \
  unique-migrate

Environment:

• DATABASE_URL: required, format mysql://user:pass@tcp(host:port)/dbname?multiStatements=true
• MAX_RETRIES: optional, default 60
• SLEEP: optional retry sleep seconds, default 2

docker-compose service example:

version: "3.8"
services:
  db:
    image: mysql:8.0
    environment:
      - MYSQL_ROOT_PASSWORD=password
      - MYSQL_DATABASE=your_db
    healthcheck:
      test: ["CMD", "mysqladmin", "ping", "-h", "localhost"]
      interval: 5s
      timeout: 5s
      retries: 10

  migrate:
    image: unique-migrate
    depends_on:
      db:
        condition: service_healthy
    environment:
      - DATABASE_URL=mysql://root:password@tcp(db:3306)/your_db?multiStatements=true
    restart: "no"