220 lines
5.9 KiB
Bash
Executable File
220 lines
5.9 KiB
Bash
Executable File
#!/bin/bash
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printf "Better to run as root, because of permisions handeling.\n"
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sleep 2
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### Firewall ###
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printf "Do you want to set up firewall rules by iptables? [Y/n]: \n"
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read ansFirewallSetup
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if [[ "$ansFirewallSetup" =~ ("N"|"n") ]]; then
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printf "+ Thanks, working on next bit\n"
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else
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printf "Do you want to block non-LAN ssh connections? [Y/n/castom]: "
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read sshBlockRange
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if [[ $sshBlockRange =~ ("n"|"N") ]]; then
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printf "+ OK, working on next bit\n"
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ipList=""
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elif [[ $sshBlockRange =~ ("y"|"Y") || -z $sshBlockRange ]]; then
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#Pipes all informations about ip interfaces
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ipList=$(ip -o -4 a show scope global)
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#Founds data in pattern
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ipList=$(echo $ipList | grep -Eo "([0-9]*\.){3}[0-9]*/[0-9]*")
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#substitues space for coma
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ipList=$(echo $ipList | tr " " ",")
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printf "+ Accepting SSH connections only on these ip's: $ipList\n"
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else
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printf "\nHope you know what you are doing, I am not checking these :]"
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printf "\nSubmit your IP range to acces SSH in format 192.168.1.1/24
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\nYour IP range: "
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read ipList
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printf "\n+ Allowing SSH on this range: $ipList \n"
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fi
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fi
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### RAM ###
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printf "How much of RAM are you willing to allocate in GB (Max) [4G/?G]: \n"
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read maxRam
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printf "How little you want to let RAM go down to in GB (Min) [1G/?G]: \n"
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read minRam
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if [[ "$minRam" > "$maxRam" ]]; then
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pritf "\n You allocated too low max ram or too much min ram. Manual intervention at the end will be needed\n"
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echo "-Xmx?G # in place of ? put number of RAM you want to set ass maximum"
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$maxRam="Error"
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elif [[ "$maxRam" =~ ("G"|"M") ]]; then
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printf "\n+ Allocating $maxRam as RAM maximum."
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echo "-Xmx$maxRam" >> data/user_jvm_args.txt
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elif [[ -z $maxRam ]]; then
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$maxRam=4G
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printf "\n+ Allocating $MaxRam as RAM maximum"
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echo "-Xmx$maxRam" >> data/user_jvm_args.txt
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elif [[ ! "$maxRam" =~ ("G"|"MB") ]]; then
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printf "\n+ Allocating ${maxRam}G as RAM maximum"
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echo "-Xmx${maxRam}G" >> data/user_jvm_args.txt
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else
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pritnf "\n \n!!! Sorry I have no idea what are you trying to do :/ Manual intervention will be needed at the end \n"
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$maxRam="Error"
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echo "-Xmx?G # in place of ? put number of RAM you want to set ass maximum"
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fi
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if [[ "$minRam" > "$maxRam" ]]; then
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echo "-Xms?G # in place of ? put number of RAM you want to se ass minimum"
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elif [[ "$minRam" =~ ("G"|"M") ]]; then
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printf "\n+ Allocating $minRam as RAM minimum."
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echo "-Xms$minRam" >> data/user_jvm_args.txt
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elif [[ -z $minRam ]]; then
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$minRam=1G
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printf "\n+ Allocating $minRam as RAM minimum"
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echo "-Xms$minRam" >> data/user_jvm_args.txt
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elif [[ ! "$minRam" =~ ("G"|"MB") ]]; then
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printf "Allocating ${minRam}G as RAM maximum"
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echo "-Xms${minRam}G" >> data/user_jvm_args.txt
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else
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pritnf "\n!!! Sorry I have no idea what are you trying to do :/ Manual intervention will be needed at the end \n"
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$minRam="Error"
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echo "-Xms?G # in place of ? put number of RAM you want to set ass minimum"
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fi
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sleep 2
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### Update ###
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printf "\n+ Starting to upgrade base system\n\n"
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apt update
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apt upgrade -y
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### Installing depandencies ###
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printf "\n+ Installing depandencies \n\n"
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apt install openjdk-17-jre-headless screen p7zip-full -y
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if [[ "$ansFirewallSetup" =~ ("Y"|"y") || -z $ansFirewallSetup ]]; then
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apt install iptables -y
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fi
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### User and groupe managment ###
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printf "\n+ Creating user minecraft and basic file structure"
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groupadd minecraft
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useradd --system --shell /usr/sbin/nologin --home /opt/minecraft -g minecraft minecraft
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### File strukture ###
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mkdir /opt/minecraft
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mv data/Forge-1.20.1.jar /opt/minecraft/
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cd /opt/minecraft/
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### Installing server ###
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printf "+ Installing Forge 1.20.1 \n \n"
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java -Xms512M -Xmx2048M -jar Forge-1.20.1.jar --installServer
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cd -
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cd data/
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mv eula.txt server-icon.png server.properties run.sh user_jvm_args.txt /opt/minecraft/
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cd ..
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mkdir /opt/minecraft/mods
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printf "\n+ Unpacking mods \n \n"
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cd data
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7z x Mods.zip -o/opt/minecraft/mods/
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cd ..
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### Permisions ###
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printf "\n+ Permision handeling\n"
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chown -R minecraft:minecraft /opt/minecraft
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### SystemD service ###
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printf "+ Preparign systemD service\n"
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mv data/mc-forge.service /etc/systemd/system/
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systemctl daemon-reload
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### integration of Maxopoly's instructions on firewall ###
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if [[ "$ansFirewallSetup" =~ ("Y"|"y") || -z "$ansFirewallSetup" ]]; then
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printf "+ Executing firewall setup"
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iptables -P INPUT ACCEPT #Clears existing rules
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iptables -A INPUT -i lo -j ACCEPT #Allow loopback
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iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT #Allow continuing connections
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iptables -A INPUT -p tcp --dport 22 --source $ipList -j ACCEPT #Allow ssh from set network
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iptables -A INPUT -p tcp --dport 25565 -j ACCEPT #Allow MC port
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iptables -L ### Good place to paste a manual check to not lock yourself out
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printf "\n Does it looks right? [Y/n]: "
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read ansFirewallOK
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if [[ "$ansFirewallOK" =~ ("Y"|"y") || -z "$ansFirewallOK" ]]; then
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iptables -P INPUT DROP #Disallow everythink else
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iptables -P FORWARD DROP #Block all forwarding
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iptables -P OUTPUT ACCEPT #Allow all outgouing
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apt install iptables-persistent -y
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else
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printf "\nOK it is time for manual configuration"
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printf "\nAfter you are done ramamber to run 'apt install iptables-persistent' to save your config. System will automaticly remove your work after restart"
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fi
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fi
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### Error handeling ###
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if [[ "$minRam" = "Error" || "$maxRam" = "Error" ]]; then
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printf "\n Encountred some eror in Ram settings"
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pritnf "\n Manual configuration needed"
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printf "\n Open /opt/minecraft/user_jvm_args.txt in your favorite editor. File contains more instructions"
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else
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systemctl start mc-forge.service
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systemctl enable mc-forge
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fi
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printf "\n+ Done, thanks for your time. It is goode idea to chack if everythink is alright by running:"
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printf "\nsystemctl status mc-forge"
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printf "\nsu minecraft -s /bin/bash"
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printf "\n+ it is good idea to have some fun with screen before trying to open minecraft conesole 'screen -r' while loged wia minecraft user"
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