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• docker-compose build
• docker-compose run web rails db:create
• docker-compose run web rails db:migrate
• docker-compose run -e EDITOR=vim web rails credentials:edit # set line_channel_token
• docker-compose up
• open http://localhost:3011

• copy config/master.key (this file is ignored from git)
  • or you can recreate credentials.yml.enc and master.key:
    • rm credentials.yml.enc
    • docker-compose run -e EDITOR=vim web rails credentials:edit
      • you need to set Rails.application.credentials variables
• docker-compose -f docker-compose.production.yml build
• docker-compose -f docker-compose.production.yml run web rails db:create RAILS_ENV=production DISABLE_DATABASE_ENVIRONMENT_CHECK=1
• docker-compose -f docker-compose.production.yml run web rails db:migrate RAILS_ENV=production
• docker-compose -f docker-compose.production.yml up -d
• when nginx exit before web started: docker-compose -f docker-compose.production.yml up -d nginx

When you use line webhook set line_channel_id, line_channel_secret, and line_channel_token in credentials.

• ngrok http 3011
• set the url to config.hosts in development.rb

• generate Home controller docker-compose run web rails g controller Users