Docker image building on GitHub CI + Adds Dockerfile

Author: QuanTrieuPCYT

.github/workflows/docker-build.yml

@@ -0,0 +1,46 @@
+name: Build and Push Docker Image
+on:
+  push:
+    branches: [ "main" ]
+  workflow_dispatch:
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract Docker metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ghcr.io/${{ github.repository }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          push: true
+          provenance: false
+          platforms: linux/amd64, linux/arm64
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

Dockerfile

@@ -0,0 +1,17 @@
+FROM gradle:9.4.1-jdk21 AS builder
+
+WORKDIR /app
+COPY gradle ./gradle
+COPY build.gradle.kts ./
+COPY settings.gradle.kts ./
+COPY src ./src
+RUN gradle build --no-daemon
+
+FROM eclipse-temurin:21-jre-alpine
+
+WORKDIR /app
+RUN addgroup -S nolmax && adduser -S nolmax -G nolmax
+RUN chown nolmax:nolmax /app
+COPY --from=builder --chown=nolmax:nolmax /app/build/libs/*.jar /app/authAPI.jar
+USER nolmax:nolmax
+ENTRYPOINT ["java", "-jar", "/app/authAPI.jar"]

README.md

@@ -8,6 +8,9 @@ Designed to be used in conjunction with [nolmax's main server](https://github.co
 - On first run, the application will spawn a `config.yml` file next to the JAR executable and exit. Make sure to edit the configuration file to include the necessary server configuration and credentials.
 - Start the server again, and the app will be online at the listening address and the listening port of your choice. By default, this is `0.0.0.0:63636`.
 
+# Docker image
+- The configuration file can be inserted in the container with the path `/app/config.yml`.
+
 # Startup arguments
 There are startup arguments that override their respective options in the configuration file when specified:
 ```

src/main/java/com/qtpc/tech/nolmax/authapi/configuration/AppConfig.java

@@ -30,8 +30,8 @@ public static class Server {
     public static void createDefaultConfig(Path configPath) throws IOException {
         String defaultConfig = """
                 database:
-                  address: ""
-                  port: 36363
+                  address: "127.0.0.1"
+                  port: 5432
                   username: ""
                   password: ""
                   db: ""