205 lines
6.3 KiB
Bash
Executable File
205 lines
6.3 KiB
Bash
Executable File
#!/usr/bin/env bash
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#
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# Single entry point for deploying from removable media.
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#
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# ./install.sh reads deploy.conf next to this script
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# ./install.sh -c other.conf reads a different config
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# ./install.sh --check verify prerequisites and exit
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#
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# Copies itself off read-only media, installs prerequisites, and runs the
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# deploy. Everything is configured in deploy.conf, so there are no flags to
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# remember at the console.
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set -euo pipefail
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HERE="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
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CONF="$HERE/deploy.conf"
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CHECK_ONLY=0
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WORKDIR=""
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die() { printf '\n\033[1;31merror:\033[0m %s\n\n' "$*" >&2; exit 1; }
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step() { printf '\n\033[1m=== %s ===\033[0m\n\n' "$*"; }
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info() { echo ">>> $*"; }
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warn() { echo " warning: $*" >&2; }
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while [ $# -gt 0 ]; do
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case "$1" in
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-c|--config) CONF="${2:-}"; shift 2 ;;
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--check) CHECK_ONLY=1; shift ;;
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-w|--workdir) WORKDIR="${2:-}"; shift 2 ;;
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-h|--help) awk 'NR>1 && /^#/ {sub(/^# ?/,""); print; next} NR>1 {exit}' "$0"; exit 0 ;;
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*) die "unknown option: $1" ;;
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esac
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done
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[ "$(id -u)" -ne 0 ] || die "run this as your normal user, not root — it calls sudo itself"
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# ------------------------------------------------------------------ config ---
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[ -f "$CONF" ] || die "no config at $CONF
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Copy deploy.conf.example to deploy.conf and edit it first."
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# shellcheck source=/dev/null
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. "$CONF"
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for v in PACK_NAME AUTHOR MIRROR_URL SHARE; do
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[ -n "${!v:-}" ] || die "$v is not set in $CONF"
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done
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MC_VERSION="${MC_VERSION:-1.21.1}"
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NEOFORGE="${NEOFORGE:-latest}"
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MC_PORT="${MC_PORT:-25565}"
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HTTP_PORT="${HTTP_PORT:-18080}"
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HTTP_BIND="${HTTP_BIND:-0.0.0.0}"
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XMX="${XMX:-10G}"
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XMS="${XMS:-$XMX}"
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ACCEPT_EULA="${ACCEPT_EULA:-no}"
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START_SERVER="${START_SERVER:-no}"
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CAP_ZFS_ARC="${CAP_ZFS_ARC:-}"
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# ------------------------------------------------------------- prequisites ---
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step "Checking prerequisites"
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MISSING=()
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need() { command -v "$1" >/dev/null || MISSING+=("$2"); }
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need curl curl
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need go golang
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need python3 python3
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need zfs zfs
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need findmnt util-linux
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need mkfifo coreutils
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# Any java is not enough: NeoForge 21.1.x needs 21 exactly.
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if ! ls /usr/lib/jvm/java-21-openjdk*/bin/java >/dev/null 2>&1; then
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MISSING+=(java-21-openjdk-headless)
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fi
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if [ "${#MISSING[@]}" -gt 0 ]; then
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info "missing: ${MISSING[*]}"
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if (( CHECK_ONLY )); then
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die "prerequisites missing (see above)"
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fi
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info "installing with dnf"
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sudo dnf install -y "${MISSING[@]}" \
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|| die "could not install: ${MISSING[*]}
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Install them by hand and re-run."
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else
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info "all present"
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fi
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if ls /usr/lib/jvm/java-21-openjdk*/bin/java >/dev/null 2>&1; then
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info "java 21 present: $(ls -d /usr/lib/jvm/java-21-openjdk*/bin/java | head -1)"
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else
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die "Java 21 is still missing after the install step.
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sudo dnf install java-21-openjdk-headless"
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fi
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if ! mountpoint -q "$SHARE"; then
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die "$SHARE is not a mountpoint — the ZFS dataset is not mounted.
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Import and mount the pool first:
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sudo zpool import -a && sudo zfs mount -a
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Then re-run. Deploying onto an unmounted path would fill the root disk."
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fi
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info "$SHARE is mounted ($(findmnt -no SOURCE "$SHARE"))"
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if (( CHECK_ONLY )); then
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step "Prerequisites OK"
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exit 0
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fi
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# --------------------------------------------------------------- workspace ---
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# The media is very likely read-only, and the deploy needs somewhere writable
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# for the go build and the pack. Copy the kit onto the host first.
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if [ -z "$WORKDIR" ]; then
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if [ -w "$HERE" ]; then
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WORKDIR="$HERE"
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else
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WORKDIR="$HOME/mc-packwiz-deploy"
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info "media is read-only — copying the kit to $WORKDIR"
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mkdir -p "$WORKDIR"
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cp -f "$HERE"/*.sh "$HERE"/*.py "$WORKDIR"/ 2>/dev/null || true
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cp -f "$CONF" "$WORKDIR/deploy.conf"
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chmod +x "$WORKDIR"/*.sh "$WORKDIR"/*.py 2>/dev/null || true
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fi
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fi
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cd "$WORKDIR"
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[ -x ./deploy.sh ] || die "deploy.sh not found in $WORKDIR"
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# ----------------------------------------------------------------- zfs arc ---
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if [ -n "$CAP_ZFS_ARC" ]; then
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if [ ! -f /etc/modprobe.d/zfs.conf ] || ! grep -q zfs_arc_max /etc/modprobe.d/zfs.conf; then
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step "Capping the ZFS ARC at $CAP_ZFS_ARC bytes"
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echo "options zfs zfs_arc_max=$CAP_ZFS_ARC" | sudo tee /etc/modprobe.d/zfs.conf >/dev/null
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warn "the ARC cap needs a reboot (and 'sudo dracut --force') to take effect"
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else
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info "ZFS ARC already capped in /etc/modprobe.d/zfs.conf"
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fi
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fi
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# ------------------------------------------------------------------ deploy ---
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EULA_FLAG=""
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case "${ACCEPT_EULA,,}" in
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yes|true|1) EULA_FLAG="--accept-eula" ;;
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*) die "ACCEPT_EULA is not set to yes in $CONF.
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Read https://aka.ms/MinecraftEULA, then set ACCEPT_EULA=\"yes\" to accept it." ;;
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esac
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step "Deploying $PACK_NAME"
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./deploy.sh \
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-n "$PACK_NAME" \
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-a "$AUTHOR" \
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-u "$MIRROR_URL" \
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-m "$MC_VERSION" \
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-N "$NEOFORGE" \
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-s "$SHARE" \
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-p "$MC_PORT" \
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-H "$HTTP_PORT" \
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-B "$HTTP_BIND" \
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-X "$XMX" \
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-x "$XMS" \
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$EULA_FLAG
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# ------------------------------------------------------------------- start ---
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case "${START_SERVER,,}" in
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yes|true|1)
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step "Starting Minecraft"
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sudo systemctl start minecraft
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sleep 3
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if systemctl is-active --quiet minecraft; then
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info "minecraft.service is running"
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else
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warn "minecraft.service did not come up — journalctl -u minecraft -n 50"
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fi
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;;
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esac
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# ------------------------------------------------------------------- done ----
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SITE="${MIRROR_URL%/*}"
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HOSTONLY="$(sed -e 's#^[a-z]*://##' -e 's#/.*##' -e 's#:.*##' <<<"$SITE")"
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[ "$MC_PORT" = "25565" ] && SHOWN="$HOSTONLY" || SHOWN="$HOSTONLY:$MC_PORT"
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step "Done"
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cat <<EOF
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Kit installed in: $WORKDIR
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Pack HTTP server: ${HTTP_BIND}:${HTTP_PORT} (proxy / -> this)
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Players connect to: $SHOWN
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Setup guides: $SITE/setup-windows-packwiz.html
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$SITE/setup-linux-packwiz.html
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Still to do by hand:
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1. Point your reverse proxy at ${HTTP_BIND}:${HTTP_PORT}
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2. Drop mod jars into $SHARE/mods
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3. Run $WORKDIR/mc-refresh-restart.sh to register them
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sudo systemctl start minecraft
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journalctl -u minecraft -f
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echo "op YourName" | sudo tee /run/minecraft/console
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EOF
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