I am new to java playframework. I was asked to generate a hello world app in java playframework and dockerize it.

Requirements

java 17

playframework: 3.0.3

I installed java 17 on my system and downloaded sbt then entered this command to generate a boilerplate

sbt new playframework/play-java-seed.g8 

Dockerfile

# Use an official OpenJDK runtime as a parent image for the build stage
FROM openjdk:11-jdk-slim AS builder

# Set the working directory in the container
WORKDIR /app

# Install necessary tools and sbt
RUN apt-get update && apt-get install -y curl unzip && 
    curl -L -o /tmp/sbt.tgz https://github.com/sbt/sbt/releases/download/v1.4.7/sbt-1.4.7.tgz && 
    mkdir -p /usr/local/bin/sbt && 
    tar -xzf /tmp/sbt.tgz -C /usr/local/bin/sbt --strip-components=1 && 
    ln -s /usr/local/bin/sbt/bin/sbt /usr/bin/sbt && 
    rm /tmp/sbt.tgz

# Copy the application code to the container
COPY . /app

# Build the application
RUN sbt dist

# Use an official OpenJDK runtime as a parent image for the runtime stage
FROM openjdk:11-jre-slim

# Set the working directory in the container
WORKDIR /app

# Copy the distribution zip file from the builder stage
COPY --from=builder /app/target/universal/*.zip /app/

# Extract the distribution zip file
RUN apt-get update && apt-get install -y unzip && 
    unzip /app/*.zip && 
    rm /app/*.zip

# Expose the port that the Play app runs on
EXPOSE 9000

# Define the command to run the application
CMD ["sh", "/app/java-playframework/bin/java-playframework"]

build.sbt

name := """hello-world"""
organization := "com.example"

version := "1.0-SNAPSHOT"

lazy val root = (project in file(".")).enablePlugins(PlayJava)

scalaVersion := "2.13.14"

libraryDependencies += guice

Error

194.9 [info] welcome to sbt 1.10.0 (Oracle Corporation Java 17.0.2)
199.4 [info] loading settings for project app-build from plugins.sbt ...
201.1 [info] loading project definition from /app/project
239.5 [info] set current project to app (in build file:/app/)
239.8 [error] Not a valid command: dist (similar: set, iflast, last)
239.8 [error] Not a valid project ID: dist
239.8 [error] Expected ':'
239.8 [error] Not a valid key: dist (similar: bgList, test, history)
239.8 [error] dist