Laravel 5.8, MySQL5.6のDockerfileでマイグレーションしたら、えっらー！

$ docker-compose exec php-fpm php /app/artisan migrate:refresh

Migration table not found.
Migration table created successfully.
Migrating: 2014_10_12_000000_create_users_table

   Illuminate\Database\QueryException  : SQLSTATE[42000]: Syntax error or access violation: 1071 Specified key was too long; max key length is 767 bytes (SQL: alter table `users` add unique `users_email_unique`(`email`))

  at /app/vendor/laravel/framework/src/Illuminate/Database/Connection.php:664
    660|         // If an exception occurs when attempting to run a query, we'll format the error
    661|         // message to include the bindings with SQL, which will make this exception a
    662|         // lot more helpful to the developer instead of just the database's errors.
    663|         catch (Exception $e) {
  > 664|             throw new QueryException(
    665|                 $query, $this->prepareBindings($bindings), $e
    666|             );
    667|         }

Laravel5.4以上かつMySQL5.7.7未満でmigrationすると「Specified key was too long; max key length is 767 bytes (SQL: alter table `users` add unique･･･」エラーが出る。

解決策

MySQLのバージョンを上げる

docker-compose.yml

$ cat docker-compose.yml
version: '3.2'
services:
  mysql57:
    container_name: "mysql56"
    image: mysql:5.7
    environment:
        MYSQL_DATABASE: yomuyodb
        MYSQL_ROOT_PASSWORD: naishodayo
    ports:
      - "3306"
    restart: always
    volumes:
      - "../db:/var/lib/mysql"
  nginx:
    container_name: "nginx"
    build:
      context: .
      dockerfile: ./docker/nginx/Dockerfile
    volumes:
      - "./yomuyo/public:/app/public/"
    ports:
      - "80:80"
    depends_on:
      - php-fpm
    restart: always
  php-fpm:
    container_name: "php-fpm"
    build:
      context: .
      dockerfile: ./docker/php-fpm/Dockerfile
    volumes:
      - "./yomuyo/:/app/"
    restart: always
    links:
     - mysql57
  pma:
    container_name: "pma"
    image: phpmyadmin/phpmyadmin:latest
    environment:
      PMA_HOST: mysql57
    ports:
    - "8080:80"
    restart: always
    links:
     - mysql57

MySQLのイメージをmydql5.6からmysql5.7に変更することで対応

PHP-FPMのDockerfile

FROM php:7-fpm

ENV DEBIAN_FRONTEND noninteractive

RUN apt-get update && apt-get install -y git zlib1g-dev zip unzip libzip-dev
RUN docker-php-ext-install zip mysqli pdo_mysql

RUN mkdir -p /app
ADD ./ /app
WORKDIR /app

RUN usermod -u 1000 www-data
RUN groupmod -g 1000 www-data
RUN chown -R www-data:www-data /app

# install composer
ENV COMPOSER_ALLOW_SUPERUSER 1
ENV COMPOSER_HOME /composer
ENV PATH $PATH:/composer/vendor/bin
RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer

pdo_mysql, mysqliも必要なので、「RUN docker-php-ext-install zip mysqli pdo_mysql」をしよう。

@see

• Laravel5.4以上、MySQL5.7.7未満 でusersテーブルのマイグレーションを実行すると Syntax error が発生する