build: Change how docker file is generated

Server/build.gradle.kts

@@ -3,7 +3,6 @@ import java.util.Properties
 plugins {
     id("com.github.johnrengelman.shadow") version "8.1.1"
     kotlin("jvm")
-    id("com.bmuschko.docker-java-application") version "9.4.0"
 }
 
 group = "org.readutf.orchestrator"
@@ -62,7 +61,25 @@ tasks.jar {
     manifest {
         attributes["Main-Class"] = "org.readutf.orchestrator.server.ServerStarterKt"
     }
-    finalizedBy("dockerBuildImage")
+    finalizedBy("generateDockerFile")
+}
+
+tasks.register("generateDockerFile") {
+
+    File("$buildDir/Dockerfile").writeText(
+        """
+        FROM eclipse-temurin:21-jdk-jammy as deps
+        
+        WORKDIR /orchestrator
+
+        ADD https://github.com/utfunderscore/orchestrator/releases/download/latest/Server-$version-all.jar /orchestrator
+
+        EXPOSE 2980
+        EXPOSE 9393
+
+        CMD ["java", "-jar", "Server-$version-all.jar"]
+        """.trimIndent(),
+    )
 }
 
 tasks.register("createProperties") {
@@ -78,15 +95,6 @@ tasks.register("createProperties") {
     }
 }
 
-docker {
-    javaApplication {
-        group = "utfunderscore"
-        baseImage.set("eclipse-temurin:21-jdk-jammy")
-        images.set(listOf("utfunderscore/orchestrator:$version"))
-        ports.set(listOf(2980, 9393))
-    }
-}
-
 tasks.named("classes") {
     dependsOn("createProperties")
 }