Initialization, dockerization, structure, RabbitMQ setup, docker-compose

SymphonyManager/Dockerfile

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+FROM ubuntu:latest
+LABEL authors="lumijiez"
+
+FROM maven:3.9.8-eclipse-temurin-21 AS build
+
+WORKDIR /app
+
+COPY pom.xml .
+
+RUN mvn dependency:go-offline
+
+COPY src /app/src
+
+RUN mvn clean package -DskipTests
+
+FROM openjdk:21
+
+WORKDIR /app
+
+COPY --from=build /app/target/SymphonyManager-1.0-SNAPSHOT.jar /app/SymphonyManager.jar
+
+EXPOSE 8081
+
+ENTRYPOINT ["java", "-jar", "SymphonyManager.jar"]

SymphonyManager/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>io.github.lumijiez</groupId>
+    <artifactId>SymphonyManager</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <packaging>jar</packaging>
+
+    <dependencies>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.8.1</version>
+                <configuration>
+                    <source>21</source>
+                    <target>21</target>
+                </configuration>
+            </plugin>
+
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-jar-plugin</artifactId>
+                <version>3.1.0</version>
+                <configuration>
+                    <archive>
+                        <manifestEntries>
+                            <Main-Class>io.github.lumijiez.Main</Main-Class>
+                        </manifestEntries>
+                    </archive>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

SymphonyManager/src/main/java/io/github/lumijiez/Main.java

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+package io.github.lumijiez;
+
+//TIP To <b>Run</b> code, press <shortcut actionId="Run"/> or
+// click the <icon src="AllIcons.Actions.Execute"/> icon in the gutter.
+public class Main {
+    public static void main(String[] args) {
+        //TIP Press <shortcut actionId="ShowIntentionActions"/> with your caret at the highlighted text
+        // to see how IntelliJ IDEA suggests fixing it.
+        System.out.printf("Hello and welcome!");
+
+        for (int i = 1; i <= 5; i++) {
+            //TIP Press <shortcut actionId="Debug"/> to start debugging your code. We have set one <icon src="AllIcons.Debugger.Db_set_breakpoint"/> breakpoint
+            // for you, but you can always add more by pressing <shortcut actionId="ToggleLineBreakpoint"/>.
+            System.out.println("i = " + i);
+        }
+    }
+}