Add ability to configure auth redirect url per playground

handlers/login.go

@@ -73,15 +73,20 @@ func Login(rw http.ResponseWriter, req *http.Request) {
 		return
 	}
 
-	scheme := "http"
+	if playground.AuthRedirectURL != "" {
-	if req.TLS != nil {
+		provider.RedirectURL = playground.AuthRedirectURL
-		scheme = "https"
+	} else {
+		scheme := "http"
+		if req.TLS != nil {
+			scheme = "https"
+		}
+		host := "localhost"
+		if req.Host != "" {
+			host = req.Host
+		}
+		provider.RedirectURL = fmt.Sprintf("%s://%s/oauth/providers/%s/callback", scheme, host, providerName)
 	}
-	host := "localhost"
+
-	if req.Host != "" {
-		host = req.Host
-	}
-	provider.RedirectURL = fmt.Sprintf("%s://%s/oauth/providers/%s/callback", scheme, host, providerName)
 	url := provider.AuthCodeURL(loginRequest.Id, oauth2.SetAuthURLParam("nonce", uuid.NewV4().String()))
 
 	http.Redirect(rw, req, url, http.StatusFound)

pwd/types/playground.go

@@ -88,6 +88,7 @@ type Playground struct {
 	GoogleClientSecret          string           `json:"google_client_secret" bson:"google_client_secret"`
 	DockerClientID              string           `json:"docker_client_id" bson:"docker_client_id"`
 	DockerClientSecret          string           `json:"docker_client_secret" bson:"docker_client_secret"`
+	AuthRedirectURL             string           `json:"auth_redirect_url" bson:"auth_redirect_url"`
 	DockerHost                  string           `json:"docker_host" bson:"docker_host"`
 	MaxInstances                int              `json:"max_instances" bson:"max_instances"`
 	Privileged                  bool             `json:"privileged" bson:"privileged"`