GENERATE RAILS MASTER KEY UPGRADE

When you save it, it will encrypt it again using your master key. This will open up a vim editor with the decrypted version of the file (you can use others editors too, not necessarily vim). You can do that by running the following command: EDITOR=vim rails credentials:edit Since it’s encrypted, Rails 5.2 comes with a way to edit the config/ file. You need to keep it as a secret, so make sure to list it in your. It is NOT a good idea to version config/master.key file into your source control tool. The RAILS_MASTER_KEY is the key that Rails will use to decrypt your config/. The second file, config/master.key, is the file where your RAILS_MASTER_KEY will be placed.

This is why it IS safe to version this file into your source control tool.

GENERATE RAILS MASTER KEY UPGRADE

When you upgrade Rails to v5.2, the file where you are going to store all your private credentials is config/.Īs it’s extension suggests, this file is going to be encrypted - so you won’t be able to read what’s inside of it - unless you have the proper master key to decrypt it. The intention behind this change is mainly to remove some of the confusion introduced by the combinations of config/secrets.yml, config/ and SECRET_BASE_KEY used in earlier versions of Rails, and attempt to unify everything using a more straightforward approach.įrom now on, Rails 5.2 will only intend to use these two files instead: As announced in Rails 5.2.0 release candidate, Rails 5.2 will go out with a brand new credentials API that will eventually replace the current config/secrets.yml and config/.

Generate rails master key