14.7. Password Authenticator#
Presto supports authentication with a username and password via a custom password authenticator that validates the credentials and creates a principal.
PasswordAuthenticatorFactory is responsible for creating a
PasswordAuthenticator instance. It also defines the name of this
authenticator which is used by the administrator in a Presto configuration.
PasswordAuthenticator contains a single method,
that validates the credential and returns a
Principal, which is then
authorized by the System Access Control.
The implementation of
PasswordAuthenticatorFactory must be wrapped
as a plugin and installed on the Presto cluster.
After a plugin that implements
PasswordAuthenticatorFactory has been
installed on the coordinator, it is configured using an
etc/password-authenticator.properties file. All of the
properties other than
password-authenticator.name are specific to the
password-authenticator.name property is used by Presto to find a
PasswordAuthenticatorFactory based on the name returned by
PasswordAuthenticatorFactory.getName(). The remaining properties are
passed as a map to
Example configuration file:
password-authenticator.name=custom-access-control custom-property1=custom-value1 custom-property2=custom-value2
Additionally, the coordinator must be configured to use password authentication and have HTTPS enabled (or HTTPS forwarding enabled).