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Versions: 26
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Contents
module Aws
# @api private
class CredentialProviderChain
def initialize(config)
@config = config
end
def resolve
providers.each do |method_name, options|
credentials = send(method_name, options.merge(config: @config))
return credentials if credentials && credentials.set?
end
nil
end
private
def providers
[
[:static_credentials, {}],
[:env_credentials, { prefix: 'AWS' }],
[:env_credentials, { prefix: 'AMAZON' }],
[:env_credentials, { key:'AWS_ACCESS_KEY', secret:'AWS_SECRET_KEY' }],
[:shared_credentials, {}],
[:instance_profile_credentials, {}],
]
end
def static_credentials(options)
config = options[:config]
Credentials.new(
config.access_key_id,
config.secret_access_key,
config.session_token)
end
def env_credentials(options)
env_keys = []
if prefix = options[:prefix]
env_keys << "#{prefix}_ACCESS_KEY_ID"
env_keys << "#{prefix}_SECRET_ACCESS_KEY"
env_keys << "#{prefix}_SESSION_TOKEN"
else
env_keys << options[:key]
env_keys << options[:secret]
end
Credentials.new(*ENV.values_at(*env_keys))
end
def shared_credentials(options = {})
SharedCredentials.new(profile_name: options[:config].profile)
rescue Errors::NoSuchProfileError
nil
end
def instance_profile_credentials(*args)
InstanceProfileCredentials.new
end
end
end
Version data entries
26 entries across 26 versions & 1 rubygems