Be able to customize some timeouts for openshift auth (#5652)

* Be able to customize some timeouts for openshift auth
fixes: #5650

* add trace log to confirm what the timeout is being set to.
The log message will look like this:

  2022-11-29T19:02:39Z TRC OpenShift auth timeout is set to [13s]

business/openshift_oauth.go

@@ -59,7 +59,7 @@ type OAuthRouteTLSSpec struct {
 	Termination string `json:"termination"`
 }
 
-const defaultRequestTimeout = 10 * time.Second
+var defaultAuthRequestTimeout = 0 * time.Second // will be determined by config first time it is needed
 
 var kialiNamespace string
 
@@ -205,7 +205,12 @@ func (in *OpenshiftOAuthService) Logout(token string) error {
 }
 
 func request(method string, serverPrefix string, url string, auth *string, useSystemCA bool, customCA string) ([]byte, error) {
-	return requestWithTimeout(method, serverPrefix, url, auth, time.Duration(defaultRequestTimeout), useSystemCA, customCA)
+	if defaultAuthRequestTimeout == (0 * time.Second) {
+		config := config.Get().Auth.OpenShift
+		defaultAuthRequestTimeout = time.Duration(config.AuthTimeout) * time.Second
+		log.Tracef("OpenShift auth timeout is set to [%v]", defaultAuthRequestTimeout)
+	}
+	return requestWithTimeout(method, serverPrefix, url, auth, time.Duration(defaultAuthRequestTimeout), useSystemCA, customCA)
 }
 
 func requestWithTimeout(method string, serverPrefix string, url string, auth *string, timeout time.Duration, useSystemCA bool, customCA string) ([]byte, error) {

config/config.go

@@ -324,6 +324,7 @@ type AuthConfig struct {
 
 // OpenShiftConfig contains specific configuration for authentication when on OpenShift
 type OpenShiftConfig struct {
+	AuthTimeout    int    `yaml:"auth_timeout,omitempty"`
 	ClientIdPrefix string `yaml:"client_id_prefix,omitempty"`
 	ClientId       string `yaml:"client_id,omitempty"`
 	ServerPrefix   string `yaml:"server_prefix,omitempty"`
@@ -547,6 +548,7 @@ func NewConfig() (c *Config) {
 				UsernameClaim:           "sub",
 			},
 			OpenShift: OpenShiftConfig{
+				AuthTimeout:    10,
 				ClientIdPrefix: "kiali",
 				ServerPrefix:   "https://kubernetes.default.svc/",
 			},