drasl: init - minecraft auth server (unmojang)

shared/patches/drasl-registration-oidc-env.patch

@@ -0,0 +1,14 @@
+diff --git a/config.go b/config.go
+index 24e17b5..11194e6 100644
+--- a/config.go
++++ b/config.go
+@@ -393,6 +393,9 @@ func CleanConfig(config *Config) error {
+ 			return fmt.Errorf("Duplicate RegistrationOIDC Name: %s", oidcConfig.Name)
+ 		}
+ 		oidcNames.Add(oidcConfig.Name)
++		envkey := fmt.Sprintf("DRASL_REGISTRATION_OIDC_%s_CLIENT_SECRET", strings.ToUpper(oidcConfig.Name))
++		envvalue := strings.TrimSpace(Getenv(envkey, oidcConfig.ClientSecret))
++		oidcConfig.ClientSecret = envvalue
+ 		oidcConfig.Issuer, err = cleanURL(
+ 			fmt.Sprintf("RegistrationOIDC %s Issuer", oidcConfig.Name),
+ 			mo.Some("https://idm.example.com/oauth2/openid/drasl"),