support client credentials

internal/config/config.go

@@ -5,6 +5,7 @@ import (
 	"go.infratographer.com/x/echox"
 	"go.infratographer.com/x/events"
 	"go.infratographer.com/x/loggingx"
+	"go.infratographer.com/x/oauth2x"
 	"go.infratographer.com/x/otelx"
 
 	"go.equinixmetal.net/infra9-metal-bridge/internal/metal"
@@ -15,6 +16,7 @@ import (
 // AppConfig is the main application configuration.
 var AppConfig struct {
 	Logging      loggingx.Config
+	OIDC         OIDCClientConfig
 	EquinixMetal metal.Config
 	OTel         otelx.Config
 	Server       echox.Config
@@ -29,3 +31,8 @@ type EventsConfig struct {
 	Publisher  events.PublisherConfig
 	Subscriber events.SubscriberConfig
 }
+
+// OIDCClientConfig defines the configuration for OIDC Client Credentials.
+type OIDCClientConfig struct {
+	Client oauth2x.Config
+}