setup docker build

server/build.gradle.kts

@@ -1,12 +1,16 @@
+import eu.jonahbauer.chat.build.jlink.JLinkTask
+
 plugins {
     id("chat-bot.java-conventions")
-    application
 }
 
 group = "eu.jonahbauer.chat"
 version = "0.1.0-SNAPSHOT"
 
-val bots = project(":bots").subprojects
+val bot : Configuration by configurations.creating
+configurations.runtimeOnly {
+    extendsFrom(bot)
+}
 
 dependencies {
     implementation(project(":bot-api"))
@@ -16,13 +20,27 @@ dependencies {
 
     runtimeOnly(libs.logback)
 
-    bots.forEach {
-        implementation(project(it.path))
+    project.project(":bots").subprojects.forEach {
+        bot(project(it.path))
     }
 }
 
-application {
-    mainClass.set("eu.jonahbauer.chat.server.Main")
-    mainModule.set("eu.jonahbauer.chat.server")
-    applicationDefaultJvmArgs = listOf("--enable-preview")
-}
+tasks.named<JavaCompile>("compileJava") {
+    options.javaModuleMainClass = "eu.jonahbauer.chat.server.Main"
+}
+
+tasks.register<JLinkTask>("jlink") {
+    modules = listOf("ALL-MODULE-PATH", "jdk.crypto.ec")
+    options = listOf("--no-header-files", "--no-man-pages", "--strip-debug", "--compress=zip-6")
+}
+
+tasks.register<Exec>("run") {
+    group = "application"
+    description = "runs the application using the custom runtime image"
+
+    executable = project.layout.buildDirectory.file("dist/jre/bin/java").get().asFile.path
+    args("--enable-preview", "-m", "eu.jonahbauer.chat.server")
+
+    dependsOn(tasks.named<JLinkTask>("jlink"))
+}
+