NoIssue: Support for building runable docker container

build.gradle.kts

@@ -1,5 +1,6 @@
 plugins {
     id("java")
+    id("application")
     id("maven-publish")
 }
 
@@ -9,6 +10,10 @@ if (version == "UNSET" && gradle.startParameter.taskNames.any { it.startsWith("p
     throw GradleException("You must set -Pversion=... (use publish.sh / publishCICD.sh)")
 }
 
+application {
+    mainClass.set("com.r35157.nenjim.hubd.impl.ref.Main")
+}
+
 repositories {
     mavenLocal()
 
@@ -28,15 +33,36 @@ repositories {
 }
 
 dependencies {
-    implementation("org.jetbrains:annotations:26.0.1")
-    implementation("log4j:log4j:1.2.17")
-    implementation("com.r35157.nenjim:hubd-api:0.0.0")
+    implementation(platform("org.apache.logging.log4j:log4j-bom:2.25.2"))
+    implementation("org.apache.logging.log4j:log4j-api")
+    runtimeOnly("org.apache.logging.log4j:log4j-core")
+    compileOnly("org.jetbrains:annotations:26.0.2-1")
+
+    implementation("com.r35157.nenjim:hubd-api:0.0-dev")
+    implementation("org.apache.poi:poi-ooxml:5.5.1")
 }
 
 java {
     toolchain { languageVersion.set(JavaLanguageVersion.of(24)) }
 }
 
+val dockerLibsDir = layout.buildDirectory.dir("docker/libs")
+
+tasks.register<Sync>("prepareDockerLibs") {
+    group = "distribution"
+    description = "Copies all runtime dependencies (transitive) to build/docker/libs"
+
+    // Hvis du også vil bygge dit eget jar samtidig, så lad den stå – ellers kan du fjerne den.
+    dependsOn(tasks.named("jar"))
+
+    into(dockerLibsDir)
+
+    // Kun deps (transitivt)
+    from(configurations.runtimeClasspath)
+
+    duplicatesStrategy = DuplicatesStrategy.EXCLUDE
+}
+
 tasks.withType<JavaCompile> {
     options.release.set(24)
 }