allow to hide login form (#459) (#470)

use the `hide_login_form` parameter in the `auth` settings to configure this feature

internal/config/auth.go

@@ -21,6 +21,9 @@ type Auth struct {
 	// MinPasswordLength is the minimum password length for user accounts. This also applies to the admin user.
 	// It is encouraged to set this value to at least 16 characters.
 	MinPasswordLength int `yaml:"min_password_length"`
+	// HideLoginForm specifies whether the login form should be hidden. If no social login providers are configured,
+	// the login form will be shown regardless of this setting.
+	HideLoginForm bool `yaml:"hide_login_form"`
 }
 
 // BaseFields contains the basic fields that are used to map user information from the authentication providers.

internal/config/config.go

@@ -95,6 +95,9 @@ func (c *Config) LogStartupValues() {
 		"oidcProviders", len(c.Auth.OpenIDConnect),
 		"oauthProviders", len(c.Auth.OAuth),
 		"ldapProviders", len(c.Auth.Ldap),
+		"webauthnEnabled", c.Auth.WebAuthn.Enabled,
+		"minPasswordLength", c.Auth.MinPasswordLength,
+		"hideLoginForm", c.Auth.HideLoginForm,
 	)
 }
 
@@ -169,6 +172,7 @@ func defaultConfig() *Config {
 
 	cfg.Auth.WebAuthn.Enabled = true
 	cfg.Auth.MinPasswordLength = 16
+	cfg.Auth.HideLoginForm = false
 
 	return cfg
 }