Prometheus: Promote Azure auth flag to configuration (#53447)

pkg/setting/setting.go

@@ -115,6 +115,7 @@ var (
 
 	// HTTP auth
 	SigV4AuthEnabled bool
+	AzureAuthEnabled bool
 
 	AnonymousEnabled bool
 
@@ -287,6 +288,7 @@ type Cfg struct {
 	TokenRotationIntervalMinutes int
 	SigV4AuthEnabled             bool
 	SigV4VerboseLogging          bool
+	AzureAuthEnabled             bool
 	BasicAuthEnabled             bool
 	AdminUser                    string
 	AdminPassword                string
@@ -1291,6 +1293,10 @@ func readAuthSettings(iniFile *ini.File, cfg *Cfg) (err error) {
 	cfg.SigV4AuthEnabled = SigV4AuthEnabled
 	cfg.SigV4VerboseLogging = auth.Key("sigv4_verbose_logging").MustBool(false)
 
+	// Azure Auth
+	AzureAuthEnabled = auth.Key("azure_auth_enabled").MustBool(false)
+	cfg.AzureAuthEnabled = AzureAuthEnabled
+
 	// anonymous access
 	AnonymousEnabled = iniFile.Section("auth.anonymous").Key("enabled").MustBool(false)
 	cfg.AnonymousEnabled = AnonymousEnabled