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Rails Generate New Master.key

 

If your master.key has been compromised, you might want to regenerate it.

Rails Generate Master Key

It seems that bin/rails credentials:edit ignores the Rails master key if it's set via ENV var rather than config/master.key. Steps to reproduce Generate a new Rails app cd newapp && cat config/master.key prints 8fe10c494a635b461cfe23b. Railsコマンド(rails) - Railsドキュメント はじめに 全てのrailsコマンドは-h (or -help)オプションでヘルプが見れる $ rails -h $ rails generate -h $ rails generate scaffold -hgenerateのショートカットはg $ rails g scaffoldgenerateは-p, -pretendでドライランできる $ rails generate scaffold AdminU. Ruby on Rails 5.2 Release NotesHighlights in Rails 5.2: Active Storage Redis Cache Store HTTP/2 Early Hints Credentials Content Security Policy These release notes cover only the major changes. To learn about various bug fixes and changes, please refer to the change logs or check out the list of commits in the main Rails repository on GitHub.

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Ruby on Rails 5.2 Release NotesHighlights in Rails 5.2: Active Storage Redis Cache Store HTTP/2 Early Hints Credentials Content Security Policy These release notes cover only the major changes. To learn about various bug fixes and changes, please refer to the change logs or check out the list of commits in the main Rails repository on GitHub. On a new project create I get the credentials.yml.enc file but no master.key. I have deleted that file and edited again creating a new one and no master.key. I also edited the original one and saved and no master key gets generated.

No key regeneration feature at the moment.We have to do it manually.

  1. Copy content of original credentials rails credentials:show somewhere temporarily.
  2. Remove config/master.key and config/credentials.yml.enc
  3. Run EDITOR=vim rails credentials:edit in the terminal: This command will create a new master.key and credentials.yml.enc if they do not exist.
  4. Paste the original credentials you copied (step 1) in the new credentials file (and save + quit vim)
  5. Add and Commit the file config/credentials.yml.enc

Rails Generate New Master.key Card

Important

Rails Generate Secret

Rails Generate New Master.key
  • Make sure config/master.key is listed in .gitignore and NOT tracked by git.
  • The command EDITOR=vim rails credentials:edit might not work if you require credential value in some file (initializers or database.yml).I had the problem with devise.rb. I just uncommented the line secret_key = .. just the time to run the command to regenerate the credentials file, and then commented the line out again.
  • If you want to use Sublime to edit the credentials, you can replace the command EDITOR=vim rails credentials:edit by EDITOR='/Applications/Sublime Text.app/Contents/SharedSupport/bin/subl -w' rails credentials:edit

source: https://blog.eq8.eu/til/rails-52-credentials-tricks.html