Minecraft server

VM 생성

2: Prepare the data disk

sudo mkdir -p /home/minecraft
sudo mkfs.ext4 -F -E lazy_itable_init=0,\
lazy_journal_init=0,discard \
/dev/disk/by-id/google-minecraft-disk

Result

sudo mkfs.ext4 -F -E lazy_itable_init=0,\
> lazy_journal_init=0,discard \
> /dev/disk/by-id/google-minecraft-disk
mke2fs 1.43.4 (31-Jan-2017)
Discarding device blocks: done                            
Creating filesystem with 13107200 4k blocks and 3276800 inodes
Filesystem UUID: b7c787e3-4996-4c22-a21b-2a7fc266f091
Superblock backups stored on blocks: 
        32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 
        4096000, 7962624, 11239424
Allocating group tables: done                            
Writing inode tables: done                            
Creating journal (65536 blocks): done
Writing superblocks and filesystem accounting information: done   

Mount

sudo mount -o discard,defaults /dev/disk/by-id/google-minecraft-disk /home/minecraft

3. Install and run the application

Java 설치

sudo apt-get update

sudo apt-get install -y default-jre-headless

cd /home/minecraft

sudo apt-get install wget

sudo wget https://launcher.mojang.com/v1/objects/d0d0fe2b1dc6ab4c65554cb734270872b72dadd6/server.jar

Initialize the Minecraft server

sudo apt-get update
sudo apt-get install -y default-jre-headless
cd /home/minecraft
sudo apt-get install wget
sudo wget https://launcher.mojang.com/v1/objects/d0d0fe2b1dc6ab4c65554cb734270872b72dadd6/server.jar
sudo java -Xmx1024M -Xms1024M -jar server.jar nogui

트러블슈팅

eula.txt eula=true

Create a virtual terminal screen to start the Minecraft server

sudo apt-get install -y screen sudo screen -S mcs java -Xmx1024M -Xms1024M -jar server.jar nogui

Detach from the screen and close your SSH session

sudo screen -r mcs

Allow client traffic

Create a firewall rule

5: Schedule regular backups

gsutil mb gs://$YOUR_BUCKET_NAME-minecraft-backup gsutil mb gs://$YOUR_BUCKET_NAME-minecraft-backup

Backup.sh

#!/bin/bash
screen -r mcs -X stuff '/save-all\n/save-off\n'
/usr/bin/gsutil cp -R ${BASH_SOURCE%/*}/world gs://${YOUR_BUCKET_NAME}-minecraft-backup/$(date "+%Y%m%d-%H%M%S")-world
screen -r mcs -X stuff '/save-on\n'

sudo chmod 755 /home/minecraft/backup.sh . /home/minecraft/backup.sh

sudo crontab -e

0 */4 * * * /home/minecraft/backup.sh

Server maintenance

정지

sudo screen -r -X stuff '/stop\n'

Automate server maintenance with startup and shutdown scripts

https://storage.googleapis.com/cloud-training/archinfra/mcserver/startup.sh

https://storage.googleapis.com/cloud-training/archinfra/mcserver/shutdown.sh