Rails 5.2 Generate Master Key

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

No key regeneration feature at the moment.We have to do it manually. Nitro pro 9 0 5 9 serial key generator.

Steps to reproduce. I have setup a new project and using Rails 5.2 and its encrypted credentials feature. But if my master.key file get compromised then how would I change it and should be able to use encrypted credentials with newly created master key. If you don’t have a master key, that will be created too. Applications after Rails 5.2 automatically have a basic credentials file generated that already contains the secretkeybase.

Rails 5.2 Generate Master Key
Rails generate model example

Rails 5.2 Master Key

  1. Option 2: create a RAILSMASTERKEY ENV variable. Rails will detect it and use it as your master key, e.g. In heroku: heroku config:set RAILSMASTERKEY= your-master-key-here.
  2. As the release notes for Rails 5.2.0 states, the future intent is to replace secrets.yml and secrets.yml.enc with credentials.yml.enc: This will eventually replace Rails.application.secrets and the encrypted secrets introduced in Rails 5.1.
  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

Important

Rails Generate 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

Rails Generate View

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