[Added] Basis for Backend

backend/.devcontainer/Dockerfile

@@ -1,15 +0,0 @@
-# Use an official OpenJDK as a parent image
-FROM openjdk:17-jdk-slim
-
-# Set the working directory
-WORKDIR /app
-
-# Install Maven
-RUN apt-get update && apt-get install -y \
-    maven=3.3.9-4 \
-    && apt-get clean \
-    && rm -rf /var/lib/apt/lists/*
-
-RUN mvn clean package
-
-CMD ["tail","-f","/dev/null"]

backend/.devcontainer/devcontainer.json

@@ -2,13 +2,19 @@
   "name": "Quiz Backend",
   
   "build": {
-    "context": ".",
-    "dockerfile": "Dockerfile",
+    "context": "..",
+    "dockerfile": "../Dockerfile",
     "args": {
-      "WORKDIR": "/app"
-    }
+      "WORKDIR": "/app",
+      // "UID": "${localEnv:USER_UID}",
+      // "GID": "${localEnv:USER_GID}"
+    },
+    "target": "development"
   },
-  "runArgs": ["--name=quiz-backend-dev-cont"],
+  "runArgs": [
+    "--name=quiz-backend-dev-cont",
+    "--net=host" // Allows it to be opened on the host network
+  ],
   "workspaceFolder": "/app",
   "mounts": [
     "source=.,target=/app,type=bind"
@@ -17,6 +23,8 @@
     "vscode": {
       "settings": {},
       "extensions": [
+        "vscjava.vscode-java-pack",
+        "Oracle.oracle-java"
       ]
     }
   }