Java17 and modernize

.github/workflows/CI.yml

@@ -19,11 +19,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
-    - name: Set up JDK 11
-      uses: actions/setup-java@v3
+    - name: Set up JDK 17
+      uses: actions/setup-java@v5
       with:
-        java-version: '11'
-        distribution: 'adopt'
+        java-version: '17'
+        distribution: 'temurin'
         cache: maven
     - name: Build with Maven
       run: mvn -B clean install
@@ -36,10 +36,10 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - name: Set up Maven Central Repository
-        uses: actions/setup-java@v3
+        uses: actions/setup-java@v5
         with:
-          java-version: '11'
-          distribution: 'adopt'
+          java-version: '17'
+          distribution: 'temurin'
           server-id: geosolutions
           server-username: MAVEN_USERNAME
           server-password: MAVEN_PASSWORD

.gitignore

@@ -2,4 +2,6 @@
 .project
 .settings
 */target/*
-target/
+target/
+.idea/
+main/assembly/*

Dockerfile

@@ -0,0 +1,22 @@
+# --- Build stage ---
+FROM eclipse-temurin:17-jdk-alpine AS build
+
+RUN apk add --no-cache maven
+
+WORKDIR /app
+COPY pom.xml .
+RUN mvn dependency:go-offline -B
+
+COPY src ./src
+RUN mvn clean package -Pdocker -DskipTests -B
+
+# --- Runtime stage ---
+FROM gcr.io/distroless/java17-debian12
+
+COPY --from=build /app/target/http-proxy.jar /app/http-proxy.jar
+
+ENV PORT=8080
+EXPOSE 8080
+
+USER nonroot:nonroot
+ENTRYPOINT ["java", "-jar", "/app/http-proxy.jar"]