【M1 Mac】Railsの開発環境をdocker-composeで作成する

$ docker --version
Docker version 20.10.1, build 831ebeae96

$ docker-compose --version
docker-compose version 1.27.4, build 40524192

$ mkdir ~/railsapp
$ cd ~/railsapp
$ vim Dockerfile

FROM ruby:3.0.0
RUN apt-get update -qq && apt-get install -y build-essential nodejs
RUN mkdir /app
WORKDIR /app
COPY Gemfile /app/Gemfile
COPY Gemfile.lock /app/Gemfile.lock
RUN bundle install
COPY . /app

RUN curl https://deb.nodesource.com/setup_12.x | bash
RUN curl https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add -
RUN echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.list.d/yarn.list
RUN apt-get update && apt-get install -y nodejs yarn postgresql-client

source 'https://rubygems.org'
gem 'rails', '6.0.3.4'

$ vim Gemfile.lock

version: '3'
services:
  web:
    build: .
    command: bundle exec rails s -p 3000 -b '0.0.0.0'
    volumes:
      - .:/app
    ports:
      - 3000:3000
    depends_on:
      - db
    tty: true
    stdin_open: true
  db:
    image: mysql@sha256:dce31fcdd15aaedb5591aa89f19ec37cb79981af46511781fa41287d88ed0abd
    volumes:
      - db-volume:/var/lib/mysql
      - ./mysql-confd:/etc/mysql/conf.d
    environment:
      MYSQL_ROOT_PASSWORD: password
volumes:
  db-volume:

[db]
default_authentication_plugin= mysql_native_password

.
├── Dockerfile
├── Gemfile
├── Gemfile.lock
├── docker-compose.yml
└── mysql-confd
    └── default_authentication.cnf

1 directory, 5 files

$ docker-compose run web rails new . --force --database=mysql

/railsapp $ ls
Dockerfile              Rakefile                config                  lib                     package.json            test
Gemfile                 app                     config.ru               log                     postcss.config.js       tmp
Gemfile.lock            babel.config.js         db                      mysql-confd             public                  vendor
README.md               bin                     docker-compose.yml      node_modules            storage                 yarn.lock

$ docker-compose build

# MySQL. Versions 5.5.8 and up are supported.
#
# Install the MySQL driver
#   gem install mysql2
#
# Ensure the MySQL gem is defined in your Gemfile
#   gem 'mysql2'
#
# And be sure to use new-style password hashing:
#   https://dev.mysql.com/doc/refman/5.7/en/password-hashing.html
#
default: &default
  adapter: mysql2
  encoding: utf8mb4
  pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
  username: root
  password: password # 変更
  host: db # 変更

development:
  <<: *default
  database: app_development

# Warning: The database defined as "test" will be erased and
# re-generated from your development database when you run "rake".
# Do not set this db to the same as development or production.
test:
  <<: *default
  database: app_test

# As with config/credentials.yml, you never want to store sensitive information,
# like your database password, in your source code. If your source code is
# ever seen by anyone, they now have access to your database.
#
# Instead, provide the password as a unix environment variable when you boot
# the app. Read https://guides.rubyonrails.org/configuring.html#configuring-a-database
# for a full rundown on how to provide these environment variables in a
# production deployment.
#
# On Heroku and other platform providers, you may have a full connection URL
# available as an environment variable. For example:
#
#   DATABASE_URL="mysql2://myuser:mypass@localhost/somedatabase"
#
# You can use this database configuration with:
#
#   production:
#     url: <%= ENV['DATABASE_URL'] %>
#
production:
  <<: *default
  database: app_production
  username: app
  password: <%= ENV['APP_DATABASE_PASSWORD'] %>

$ docker-compose up -d

$ docker-compose ps
     Name                   Command               State           Ports         
--------------------------------------------------------------------------------
railsapp_db_1    docker-entrypoint.sh mysqld      Up      3306/tcp, 33060/tcp   
railsapp_web_1   bundle exec rails s -p 300 ...   Up      0.0.0.0:3000->3000/tcp

$ docker-compose run web bundle exec rake db:create

Mysql2::Error::ConnectionError: Plugin caching_sha2_password could not be loaded: /usr/lib/aarch64-linux-gnu/mariadb19/plugin/caching_sha2_password.so: cannot open shared object file: No such file or directory

$ docker exec -it ror_db_1 bash
root@a503c7951a1f:/# mysql -u root -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 10
Server version: 8.0.22 MySQL Community Server - GPL

Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> SELECT User, Host, Plugin  FROM mysql.user; 
+------------------+-----------+-----------------------+
| User             | Host      | Plugin                |
+------------------+-----------+-----------------------+
| root             | %         | caching_sha2_password |
| mysql.infoschema | localhost | caching_sha2_password |
| mysql.session    | localhost | caching_sha2_password |
| mysql.sys        | localhost | caching_sha2_password |
| root             | localhost | caching_sha2_password |
+------------------+-----------+-----------------------+
5 rows in set (0.04 sec)

mysql> select @@version;
+-----------+
| @@version |
+-----------+
| 8.0.22    |
+-----------+
1 row in set (0.02 sec)

mysql> alter user 'root'@'%' identified WITH mysql_native_password by 'password';
Query OK, 0 rows affected (0.22 sec)

mysql> alter user 'root'@'localhost' identified WITH mysql_native_password by 'password';
Query OK, 0 rows affected (0.13 sec)

mysql> SELECT User, Host, Plugin  FROM mysql.user;
+------------------+-----------+-----------------------+
| User             | Host      | Plugin                |
+------------------+-----------+-----------------------+
| root             | %         | mysql_native_password |
| mysql.infoschema | localhost | caching_sha2_password |
| mysql.session    | localhost | caching_sha2_password |
| mysql.sys        | localhost | caching_sha2_password |
| root             | localhost | mysql_native_password |
+------------------+-----------+-----------------------+
5 rows in set (0.01 sec)

$ docker-compose run web bundle exec rake db:create
Creating ror_web_run ... done
Created database 'app_development'
Created database 'app_test'