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Have you ever wondered about those secret keys found in config/secrets.yml of your Rails app? The comments generated in that file describe the keys as such:

1. Rails Secret Key Base
2. Rails 5 Generate Secret_key_base

Mar 24, 2018  After installing rails 5.2 create new project using this version and you will see two files in config folder config/master.key and config/credentials.yml.enc. You can share master.key with your team but don’t check into shared repository. Rails will be automatically adding it to.gitignore file for you.

Nov 03, 2016  We are going to create a new one. Go on and click on Create New Users blue button. You can create 5 users at once. In our case we need just the only one. So enter a name for the user to create, par ex. Leave the checkbox Generate an access key for each user checked and click on Create. Ruby on Rails. Contribute to rails/rails development by creating an account on GitHub.

1. Generate a new secret key. Bundle exec bin/rails secret Copy the generated secret key. Open the app.yaml file that you created earlier, and add an envvariables section. The envvariables defines environment variables in the App Engine flexible environment. The app.yaml file should look similar to the following example with SECRETKEY replaced with your secret key.
2. Generate a new secret key. Bundle exec bin/rails secret Copy the generated secret key. Open the app.yaml file that you created earlier, and add an envvariables section. The envvariables defines environment variables in the App Engine flexible environment. The app.yaml file should look similar to the following example with SECRETKEY.

‘Your secret key is used for verifying the integrity of signed cookies.’

Great… but what if they become compromised? Or we need to change them? We can generate new ones.

Rails provides rake secret for just this purpose.

The source code is here. The code simply requires SecureRandom and spits out a string. If you want to be really clever, you can pipe the string directly into your Vim buffer for the config file, with :.! rake secret.

Check out rake -T secret inside a Rails root directory for more information.

An Engine with the responsibility of coordinating the whole boot process.

Initialization

Rails::Application is responsible for executing all railties and engines initializers. It also executes some bootstrap initializers (check Rails::Application::Bootstrap) and finishing initializers, after all the others are executed (check Rails::Application::Finisher).

Configuration

Besides providing the same configuration as Rails::Engine and Rails::Railtie, the application object has several specific configurations, for example “cache_classes”, “consider_all_requests_local”, “filter_parameters”, “logger” and so forth.

Check Rails::Application::Configuration to see them all.

Routes

The application object is also responsible for holding the routes and reloading routes whenever the files change in development.

Middlewares

The Application is also responsible for building the middleware stack.

Booting process

The application is also responsible for setting up and executing the booting process. From the moment you require “config/application.rb” in your app, the booting process goes like this:

Generate private key from public certificate. Generating a private key and self-signed certificate can be accomplished in a few simple steps using OpenSSL. We provide here detailed instructions on how to create a private key and self-signed certificate valid for 365 days. Public key is embedded in the SSL certificate and private key is stored on the server and kept secret. When a site visitor fills out a form with personal information and submits it to the server, the information gets encrypted with the public key to protect if from eavesdropping. Generate online private and public key for ssh, putty, github, bitbucket Save both of keys on your computer (text file, dropbox, evernote etc)!!! The generated keys are RANDOM and CAN'T be restored. You can create keys without creating an account. Jul 09, 2019  The private key gets generated along with your Certificate Signing Request (CSR). The CSR is submitted to the certificate authority right after you activate your certificate, while the private key must be kept safe and secret on your server or device. Later on, this key is used for installation of your certificate. Dec 01, 2015  To generate a public/private key file: Open puttygen.exe by double clicking on it: The standard install of puttygen.exe is in C:Program. Click the Generate button, and move the mouse around to generate randomness: PuTTYgen defaults. Use ConversionsExport OpenSSL key to export the private.

Multiple Applications

If you decide to define multiple applications, then the first application that is initialized will be set to Rails.application, unless you override it with a different application.

To create a new application, you can instantiate a new instance of a class that has already been created:

In the above example, the configuration from the first application was used to initialize the second application. You can also use the initialize_copy on one of the applications to create a copy of the application which shares the configuration.

If you decide to define Rake tasks, runners, or initializers in an application other than Rails.application, then you must run them manually.

• MODULERails::Application::Bootstrap
• MODULERails::Application::Finisher
• CLASSRails::Application::Configuration
• CLASSRails::Application::DefaultMiddlewareStack
• CLASSRails::Application::RoutesReloader

• config_for,
• console,
• create,

• encrypted,

• inherited,
• initialized?,
• initializer,
• instance,

• rake_tasks,
• reload_routes!,

• secret_key_base,

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Convenience for loading config/foo.yml for the current Rails env.

Example:

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Sends any console called in the instance of a new application up to the console method defined in Rails::Railtie.

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Decrypts the credentials hash as kept in config/credentials.yml.enc. This file is encrypted with the Rails master key, which is either taken from ENV['RAILS_MASTER_KEY'] or from loading config/master.key. If specific credentials file exists for current environment, it takes precedence, thus for production environment look first for config/credentials/production.yml.enc with master key taken from ENV['RAILS_MASTER_KEY'] or from loading config/credentials/production.key. Default behavior can be overwritten by setting config.credentials.content_path and config.credentials.key_path.

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Shorthand to decrypt any encrypted configurations or files.

For any file added with rails encrypted:edit call read to decrypt the file with the master key. The master key is either stored in config/master.key or ENV['RAILS_MASTER_KEY'].

It's also possible to interpret encrypted YAML files with config.

Any top-level configs are also accessible directly on the return value:

Rails Secret Key Base

The files or configs can also be encrypted with a custom key. To decrypt with a key in the ENV, use:

Or to decrypt with a file, that should be version control ignored, relative to Rails.root:

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Stores some of the Rails initial environment parameters which will be used by middlewares and engines to configure themselves.

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Sends any generators called in the instance of a new application up to the generators method defined in Rails::Railtie.

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Returns true if the application is initialized.

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Sends the initializers to the initializer method defined in the Rails::Initializable module. Each Rails::Application class has its own set of initializers, as defined by the Initializable module.

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Sends the isolate_namespace method up to the class method.

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Rails 5 Generate Secret_key_base

Returns the application's KeyGenerator

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Returns a message verifier object.

This verifier can be used to generate and verify signed messages in the application.

It is recommended not to use the same verifier for different things, so you can get different verifiers passing the verifier_name argument.

Parameters

• verifier_name - the name of the message verifier.

Examples

See the ActiveSupport::MessageVerifier documentation for more information.

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If you try to define a set of Rake tasks on the instance, these will get passed up to the Rake tasks defined on the application's class.

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Reload application routes regardless if they changed or not.

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Sends any runner called in the instance of a new application up to the runner method defined in Rails::Railtie.

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The secret_key_base is used as the input secret to the application's key generator, which in turn is used to create all MessageVerifiers/MessageEncryptors, including the ones that sign and encrypt cookies.

In development and test, this is randomly generated and stored in a temporary file in tmp/development_secret.txt.

In all other environments, we look for it first in ENV, then credentials.secret_key_base, and finally secrets.secret_key_base. For most applications, the correct place to store it is in the encrypted credentials file.

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Returns secrets added to config/secrets.yml.

Example:

Rails.application.secrets.namespace returns my_app_production in the production environment.

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