Class: Rage::Configuration

Inherits:
Object
  • Object
show all
Defined in:
lib/rage/configuration.rb

Overview

Rage.configure can be used to adjust the behavior of your Rage application:

Rage.configure do
  config.logger = Rage::Logger.new(STDOUT)
  config.server.workers_count = 2
end

General Configuration

• config.logger

The logger that will be used for Rage.logger and any related Rage logging. Custom loggers should implement Ruby’s Logger interface.

• config.log_formatter

The formatter of the Rage logger. Built in options include Rage::TextFormatter and Rage::JSONFormatter. Defaults to an instance of Rage::TextFormatter.

• config.log_level

Defines the verbosity of the Rage logger. This option defaults to :debug for all environments except production, where it defaults to :info. The available log levels are: :debug, :info, :warn, :error, :fatal, and :unknown.

• config.secret_key_base

The secret_key_base is used as the input secret to the application’s key generator, which is used to encrypt cookies. Rage will fall back to the SECRET_KEY_BASE environment variable if this is not set.

• config.fallback_secret_key_base

Defines one or several old secrets that need to be rotated. Can accept a single key or an array of keys. Rage will fall back to the FALLBACK_SECRET_KEY_BASE environment variable if this is not set.

Middleware Configuration

• config.middleware.use

Adds a middleware to the top of the middleware stack. This is the recommended way of adding a middleware.

config.middleware.use Rack::Cors do
  allow do
    origins "*"
    resource "*", headers: :any
  end
end

• config.middleware.insert_before

Adds middleware at a specified position before another middleware. The position can be either an index or another middleware.

❗️Heads up: By default, Rage always uses the Rage::FiberWrapper middleware, which wraps every request in a separate fiber. Make sure to always have this middleware in the top of the stack. Placing other middlewares in front may lead to undefined behavior.

config.middleware.insert_before Rack::Head, Magical::Unicorns
config.middleware.insert_before 0, Magical::Unicorns

• config.middleware.insert_after

Adds middleware at a specified position after another middleware. The position can be either an index or another middleware.

config.middleware.insert_after Rack::Head, Magical::Unicorns

Server Configuration

• config.server.max_clients

Limits the number of simultaneous connections the server can accept. Defaults to the maximum number of open files.

❗️Heads up: Decreasing this number is almost never a good idea. Depending on your application specifics, you are encouraged to use other methods to limit the number of concurrent connections:

  1. If your application is exposed to the public, you may want to use a cloud rate limiter, like Cloudflare WAF or Fastly WAF.

  2. Otherwise, consider using tools like Rack::Attack or connection_pool.

# Limit the amount of connections your application can accept
config.middleware.use Rack::Attack
Rack::Attack.throttle("req/ip", limit: 300, period: 5.minutes) do |req|
  req.ip
end
#
# Limit the amount of connections to a specific resource
HTTP = ConnectionPool.new(size: 5, timeout: 5) { Net::HTTP }
HTTP.with do |conn|
  conn.get("/my-resource")
end

• config.server.port

Specifies what port the server will listen on.

• config.server.workers_count

Specifies the number of server processes to run. Defaults to 1 in development and to the number of available CPU cores in other environments.

• config.server.timeout

Specifies connection timeout.

Static file server

• config.public_file_server.enabled

Configures whether Rage should serve static files from the public directory. Defaults to false.

Cable Configuration

• config.cable.protocol

Specifies the protocol the server will use. The only value currently supported is Rage::Cable::Protocol::ActioncableV1Json. The client application will need to use @rails/actioncable to talk to the server.

• config.cable.allowed_request_origins

Restricts the server to only accept requests from specified origins. The origins can be instances of strings or regular expressions, against which a check for the match will be performed.

• config.cable.disable_request_forgery_protection

Allows requests from any origin.

Transient Settings

The settings described in this section should be configured using environment variables and are either temporary or will become the default in the future.

• RAGE_DISABLE_IO_WRITE

Disables the io_write hook to fix the “zero-length iov” error on Ruby < 3.3.

• RAGE_DISABLE_AR_POOL_PATCH

Disables the ActiveRecord::ConnectionPool patch and makes Rage use the original ActiveRecord implementation.

• RAGE_DISABLE_AR_WEAK_CONNECTIONS

Instructs Rage to not reuse Active Record connections between different fibers.

Defined Under Namespace

Classes: Cable, Middleware, PublicFileServer, Server

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#fallback_secret_key_base ⇒ Object 



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# File 'lib/rage/configuration.rb', line 162

def fallback_secret_key_base
  Array(@fallback_secret_key_base || ENV["FALLBACK_SECRET_KEY_BASE"])
end

#log_formatter ⇒ Object

Returns the value of attribute log_formatter.



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# File 'lib/rage/configuration.rb', line 143

def log_formatter
  @log_formatter
end

#log_level ⇒ Object

Returns the value of attribute log_level.



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# File 'lib/rage/configuration.rb', line 143

def log_level
  @log_level
end

#logger ⇒ Object

Returns the value of attribute logger.



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# File 'lib/rage/configuration.rb', line 142

def logger
  @logger
end

#secret_key_base ⇒ Object 



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# File 'lib/rage/configuration.rb', line 158

def secret_key_base
  @secret_key_base || ENV["SECRET_KEY_BASE"]
end

Instance Method Details

#cable ⇒ Object 



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# File 'lib/rage/configuration.rb', line 174

def cable
  @cable ||= Cable.new
end

#config ⇒ Object

used in DSL



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# File 'lib/rage/configuration.rb', line 147

def config = self

#internal ⇒ Object 



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# File 'lib/rage/configuration.rb', line 182

def internal
  @internal ||= Internal.new
end

#middleware ⇒ Object 



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# File 'lib/rage/configuration.rb', line 170

def middleware
  @middleware ||= Middleware.new
end

#public_file_server ⇒ Object 



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# File 'lib/rage/configuration.rb', line 178

def public_file_server
  @public_file_server ||= PublicFileServer.new
end

#server ⇒ Object 



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# File 'lib/rage/configuration.rb', line 166

def server
  @server ||= Server.new
end