Class: AWS::Core::CredentialProviders::ENVProvider

Inherits:

Object

• Object
• AWS::Core::CredentialProviders::ENVProvider

Includes:

Provider

Defined in:

lib/aws/core/credential_providers.rb

Overview

Fetches credentials from the environment (ENV). You construct an ENV provider with a prefix. Given the prefix “AWS” ENV will be checked for the following keys:

• AWS_ACCESS_KEY_ID

• AWS_SECRET_ACCESS_KEY

• AWS_SESSION_TOKEN (optional)

Constant Summary

Constants included from Provider

Provider::KEYS

Instance Attribute Summary

• #prefix ⇒ String readonly

Instance Method Summary

• #get_credentials ⇒ Hash

  This method is called on a credential provider to fetch credentials.

• #initialize(prefix) ⇒ ENVProvider constructor

  A new instance of ENVProvider.

Methods included from Provider

#access_key_id, #credentials, #refresh, #secret_access_key, #session_token

Constructor Details

#initialize(prefix) ⇒ ENVProvider

Returns a new instance of ENVProvider.

Parameters:

• prefix (String) —

  The prefix to apply to the ENV variable.

# File 'lib/aws/core/credential_providers.rb', line 174

def initialize prefix
  @prefix = prefix
end

Instance Attribute Details

#prefix ⇒ String (readonly)

Returns:

• (String)

# File 'lib/aws/core/credential_providers.rb', line 179

def prefix
  @prefix
end

Instance Method Details

#get_credentials ⇒ Hash

This method is called on a credential provider to fetch credentials. The credentials hash returned from this method will be cashed until the client calls Provider#refresh.

Returns:

• (Hash)

# File 'lib/aws/core/credential_providers.rb', line 182

def get_credentials
  credentials = {}
  KEYS.each do |key|
    if value = ENV["#{@prefix}_#{key.to_s.upcase}"]
      credentials[key] = value
    end
  end
  credentials
end