Backend: Adds feature when backend serves frontend (#3)

To keep the system simple and not to have nodejs running in the same image or a separate image for frontend. Backend will serve static files and redirect game ids to the index.html

Dockerfile

@@ -8,11 +8,11 @@ RUN npm run build
 # Step 2: Backend Builder
 FROM gradle:7.6-jdk17 as backend-builder
 COPY backend /backend
-COPY --from=frontend-builder /frontend/dist /backend/src/main/resources/public
+COPY --from=frontend-builder /frontend/dist /backend/src/main/resources/static
 WORKDIR /backend
 RUN gradle build -x check
 
 # Step 3: Final
 FROM eclipse-temurin:17-jre
-COPY --from=backend-builder /backend/build/libs/tri-game-backend.war /app/tri-game.war
-CMD ["java","-jar","/app/tri-game.war"]
+COPY --from=backend-builder /backend/build/libs/tri-game-backend.jar /app/tri-game.jar
+CMD ["java","-jar","/app/tri-game.jar"]

backend/.gitignore

@@ -35,3 +35,6 @@ out/
 
 ### VS Code ###
 .vscode/
+
+### Frontend build ###
+backend/src/main/resources/static/

backend/build.gradle.kts

@@ -8,8 +8,6 @@ plugins {
 	id("org.springframework.boot") version "3.0.5"
 	id("io.spring.dependency-management") version "1.1.0"
 	id("org.springdoc.openapi-gradle-plugin") version "1.6.0"
-
-	war
 }
 
 group = "io.zakh"

backend/src/main/kotlin/io/zakh/tri/WebConfig.kt

@@ -1,18 +1,13 @@
 package io.zakh.tri
 
 import org.springframework.context.annotation.Configuration
-import org.springframework.web.servlet.config.annotation.CorsRegistry
-import org.springframework.web.servlet.config.annotation.EnableWebMvc
+import org.springframework.web.servlet.config.annotation.ViewControllerRegistry
 import org.springframework.web.servlet.config.annotation.WebMvcConfigurer
 
 @Configuration
-@EnableWebMvc
 class WebConfig : WebMvcConfigurer {
-    override fun addCorsMappings(registry: CorsRegistry) {
-
-        registry.addMapping("/**")
-            .allowedOrigins("http://localhost:5173", "http://localhost:4000")
-            .allowCredentials(true)
-            .allowedMethods("*")
+    override fun addViewControllers(registry: ViewControllerRegistry) {
+        registry.addViewController("/{gameID:\\w*}")
+            .setViewName("index.html")
     }
 }

frontend/package.json

@@ -7,6 +7,7 @@
     "dev": "vite",
     "build": "tsc && vite build",
     "preview": "vite preview",
+    "watch": "vite build --watch --emptyOutDir --outDir ../backend/src/main/resources/static",
     "generate-rest-client": "swagger-typescript-api -p ../backend/build/openapi.json -o ./src/api -n rest.ts"
   },
   "dependencies": {