feat: change world on slot switch

Minecraft-Realms-Emulator/Minecraft-Realms-Emulator.csproj

@@ -10,6 +10,7 @@
 
 	<ItemGroup>
 	  <EmbeddedResource Include="Resources\files\template\Dockerfile" />
+	  <EmbeddedResource Include="Resources\files\template\entrypoint" />
 	</ItemGroup>
 
   <ItemGroup>

Minecraft-Realms-Emulator/Modes/Realms/Controllers/WorldsController.cs

@@ -657,6 +657,13 @@ namespace Minecraft_Realms_Emulator.Modes.Realms.Controllers
         public ActionResult<bool> Reset(int wId)
         {
             Console.WriteLine($"Resetting world {wId}");
+
+            var world = _context.Worlds.Find(wId);
+            var server = new DockerHelper(world);
+
+            server.RunCommand($"rm -rf slot-{world.ActiveSlot}");
+            server.RebootServer();
+
             return Ok(true);
         }
 
@@ -850,6 +857,11 @@ namespace Minecraft_Realms_Emulator.Modes.Realms.Controllers
                 _context.SaveChanges();
             }
 
+            var server = new DockerHelper(world);
+            
+            server.RunCommand($"sed -i 's#level-name=slot-{world.ActiveSlot}#level-name=slot-{sId}#' server.properties");
+            server.RebootServer();
+
             world.ActiveSlot = sId;
             world.Minigame = null;
             world.WorldType = nameof(WorldTypeEnum.NORMAL);

Minecraft-Realms-Emulator/Modes/Realms/Helpers/DockerHelper.cs

@@ -58,6 +58,18 @@ namespace Minecraft_Realms_Emulator.Modes.Realms.Helpers
             serverProcess.Start();
         }
 
+        public void RebootServer()
+        {
+            ProcessStartInfo serverProcessInfo = new();
+
+            serverProcessInfo.FileName = "docker";
+            serverProcessInfo.Arguments = $"container restart realm-server-{world.Id}";
+
+            Process serverProcess = new();
+            serverProcess.StartInfo = serverProcessInfo;
+            serverProcess.Start();
+        }
+
         public void DeleteServer()
         {
             ProcessStartInfo serverProcessInfo = new();
@@ -110,5 +122,18 @@ namespace Minecraft_Realms_Emulator.Modes.Realms.Helpers
 
             commandProcess.Start();
         }
+
+        public void RunCommand(string command)
+        {
+            ProcessStartInfo commandProcessInfo = new();
+
+            commandProcessInfo.FileName = "docker";
+            commandProcessInfo.Arguments = $"exec realm-server-{world.Id} /bin/sh -c \"{command}\"";
+
+            Process commandProcess = new();
+            commandProcess.StartInfo = commandProcessInfo;
+
+            commandProcess.Start();
+        }
     }
 }

Minecraft-Realms-Emulator/Resources/files/template/Dockerfile

@@ -1,11 +1,7 @@
 FROM eclipse-temurin:21-jre-alpine
 
-WORKDIR /server
 COPY . .
 
-RUN mkdir mc
-WORKDIR mc
-
 RUN apk upgrade
 RUN apk add openssl
 
@@ -15,19 +11,8 @@ RUN tar xzf rcon-cli.tar.gz
 RUN rm rcon-cli.tar.gz
 RUN mv rcon-cli /bin/rcon-cli
 
+WORKDIR mc
 RUN wget -O server.jar https://piston-data.mojang.com/v1/objects/450698d1863ab5180c25d7c804ef0fe6369dd1ba/server.jar
 
 EXPOSE 25565
-
-RUN java -jar server.jar
-
-RUN echo "$(openssl rand -hex 20)" > .rcon-pwd
-
-RUN echo eula=true > eula.txt
-RUN echo "enable-rcon=true" >> server.properties
-RUN echo "rcon.password=$(cat .rcon-pwd)" >> server.properties
-
-RUN echo "password: $(cat .rcon-pwd)" >> /root/.rcon-cli.yaml
-
-RUN rm .rcon-pwd
-CMD ["java", "-jar", "server.jar"]
+ENTRYPOINT ["/entrypoint"]

Minecraft-Realms-Emulator/Resources/files/template/entrypoint

@@ -0,0 +1,14 @@
+#!/bin/sh
+
+RCON_PASSWORD="$(openssl rand -hex 20)"
+echo "password: $RCON_PASSWORD" >> /root/.rcon-cli.yaml
+
+[ ! -f eula.txt ] && echo "eula=true" > eula.txt
+
+if [ ! -f server.properties ]; then
+  echo "enable-rcon=true" >> server.properties
+  echo "rcon.password=$RCON_PASSWORD" >> server.properties
+  echo "level-name=slot-1" >> server.properties
+fi
+
+java -jar server.jar