nix-infra/common/fragments/minecraft.nix

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{ pkgs, config, lib, ... }:
let
rsyncSSHKeys = config.users.users.agatha.openssh.authorizedKeys.keys
++ config.users.users.julia.openssh.authorizedKeys.keys;
jre8 = pkgs.temurin-bin-8;
jre17 = pkgs.temurin-bin-17;
jvmOpts = lib.concatStringsSep " " [
"-XX:+UseG1GC"
"-XX:+ParallelRefProcEnabled"
"-XX:MaxGCPauseMillis=200"
"-XX:+UnlockExperimentalVMOptions"
"-XX:+DisableExplicitGC"
"-XX:+AlwaysPreTouch"
"-XX:G1NewSizePercent=40"
"-XX:G1MaxNewSizePercent=50"
"-XX:G1HeapRegionSize=16M"
"-XX:G1ReservePercent=15"
"-XX:G1HeapWastePercent=5"
"-XX:G1MixedGCCountTarget=4"
"-XX:InitiatingHeapOccupancyPercent=20"
"-XX:G1MixedGCLiveThresholdPercent=90"
"-XX:G1RSetUpdatingPauseTimePercent=5"
"-XX:SurvivorRatio=32"
"-XX:+PerfDisableSharedMem"
"-XX:MaxTenuringThreshold=1"
];
serverDefaults = {
white-list = true;
spawn-protection = 0;
allow-flight = true;
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max-tick-time = 2 * 60 * 1000;
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};
in {
services.modded-minecraft-servers = {
eula = true;
instances = {
# End to End encrypted modded minecraft yay
e2e = {
enable = true;
inherit rsyncSSHKeys jvmOpts;
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jvmInitialAllocation = "2G";
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jvmMaxAllocation = "8G";
jvmPackage = jre8;
serverConfig = serverDefaults // {
server-port = 25565;
rcon-port = 25566;
motd = "Enigmeowtica 2: Expert";
extra-options.level-type = "BIOMESOP";
};
};
};
};
systemd.services.mc-e2e.path = with pkgs; [ getconf gawk ];
users.users.agatha.packages = with pkgs; [ mcrcon ];
}