fix(traefik): validate port 8080 before enabling dashboard

apps/dokploy/components/dashboard/settings/servers/actions/show-traefik-actions.tsx

@@ -97,7 +97,12 @@ export const ShowTraefikActions = ({ serverId }: Props) => {
 									);
 									refetchDashboard();
 								})
-								.catch(() => {});
+								.catch((error) => {
+									const errorMessage =
+										error?.message ||
+										"Failed to toggle dashboard. Please check if port 8080 is available.";
+									toast.error(errorMessage);
+								});
 						}}
 						className="w-full cursor-pointer space-x-3"
 					>

apps/dokploy/server/api/routers/settings.ts

@@ -1,6 +1,7 @@
 import {
 	canAccessToTraefikFiles,
 	checkGPUStatus,
+	checkPortInUse,
 	cleanStoppedContainers,
 	cleanUpDockerBuilder,
 	cleanUpSystemPrune,
@@ -130,6 +131,17 @@ export const settingsRouter = createTRPCRouter({
 			let newPorts = ports;
 			// If receive true, add 8080 to ports
 			if (input.enableDashboard) {
+				// Check if port 8080 is already in use before enabling dashboard
+				const portCheck = await checkPortInUse(8080, input.serverId);
+				if (portCheck.isInUse) {
+					const conflictingContainer = portCheck.conflictingContainer
+						? ` by container "${portCheck.conflictingContainer}"`
+						: "";
+					throw new TRPCError({
+						code: "CONFLICT",
+						message: `Port 8080 is already in use${conflictingContainer}. Please stop the conflicting service or use a different port for the Traefik dashboard.`,
+					});
+				}
 				newPorts.push({
 					targetPort: 8080,
 					publishedPort: 8080,