Eric WagonerandClaude Opus 5.5
bc5f93c2fa
setup-droplet.sh prepares a host several games share and adds this game to it: its own Caddy site file, port, user, trees and access log, with /etc/caddy/Caddyfile only importing sites/*.caddy. setup-server.sh is folded in. A slug that is already a system group stops the setup with a clear word. new-game.sh now stamps .py files too. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Jm2auWk6RP71CjaAb4FMoG
75 lines
3.2 KiB
Bash
Executable File
75 lines
3.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Prepare a host for __NAME__. The host may be shared with other games of
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# Kestrel's Hall: each keeps its own Caddy site file in /etc/caddy/sites, its
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# own port, service user, data directory and access log, and this script
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# touches nothing that belongs to another game. Copy it and Caddyfile.tmpl
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# to the host and run ON it as root; safe to run again.
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# bash setup-droplet.sh '__DOMAIN__, __SLUG__.<host-ip>.sslip.io'
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# The argument is this game's Caddy site address line: one name, or several
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# separated by commas. Every name must already resolve to this host.
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set -euo pipefail
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HOST="${1:?usage: setup-droplet.sh <site address line>}"
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apt-get update -q
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apt-get install -qy curl rsync
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# Caddy (auto-HTTPS), once per host.
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if ! command -v caddy >/dev/null; then
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apt-get install -qy debian-keyring debian-archive-keyring apt-transport-https
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curl -1sLf 'https://dl.cloudsmith.io/public/caddy/stable/gpg.key' \
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| gpg --dearmor -o /usr/share/keyrings/caddy-stable-archive-keyring.gpg
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curl -1sLf 'https://dl.cloudsmith.io/public/caddy/stable/debian.deb.txt' \
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| tee /etc/apt/sources.list.d/caddy-stable.list
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apt-get update -q && apt-get install -qy caddy
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fi
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# Node 22, once per host; every game runs its server on it.
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if ! command -v node >/dev/null || [[ "$(node -v)" != v22* ]]; then
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curl -fsSL https://deb.nodesource.com/setup_22.x | bash -
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apt-get install -qy nodejs
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fi
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# The host's Caddyfile only gathers the games' site files. A Caddyfile that
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# is neither Caddy's stock one nor this is a single-game host from before the
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# shared layout: stop rather than overwrite it.
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ROOT_CADDY='# Kestrel'"'"'s Hall: every game on this host brings its own site file.
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import sites/*.caddy'
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mkdir -p /etc/caddy/sites
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if ! grep -q '^import sites/\*.caddy' /etc/caddy/Caddyfile 2>/dev/null; then
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if [ -s /etc/caddy/Caddyfile ] && ! grep -q 'root \* /usr/share/caddy' /etc/caddy/Caddyfile; then
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echo "/etc/caddy/Caddyfile holds another site; move it into /etc/caddy/sites/ first" >&2
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exit 1
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fi
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printf '%s\n' "$ROOT_CADDY" > /etc/caddy/Caddyfile
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fi
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# This game: its user, its directories, its site.
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# The service user shares the slug. A slug that is already a system group
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# (Ubuntu ships "dip", "games", "audio" and others) cannot also be a user:
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# stop and say so, and choose another user name in this script and the unit.
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if ! id -u __SLUG__ &>/dev/null; then
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if getent group __SLUG__ >/dev/null; then
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echo "a system group is already called __SLUG__; pick another service user name" >&2
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exit 1
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fi
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useradd -r -m -d /opt/__SLUG__-home __SLUG__
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fi
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mkdir -p /opt/__SLUG__/build /opt/__SLUG__/app /var/lib/__SLUG__/rooms /var/log/__SLUG__
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chown -R root:caddy /opt/__SLUG__/build
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chmod -R g+rX /opt/__SLUG__/build
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chown -R __SLUG__:__SLUG__ /var/lib/__SLUG__
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sed "s|__HOST__|$HOST|" "$(dirname "$0")/Caddyfile.tmpl" > /etc/caddy/sites/__SLUG__.caddy
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caddy validate --config /etc/caddy/Caddyfile
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# Validation as root touches the access logs; Caddy runs as caddy and must own them.
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chown -R caddy:caddy /var/lib/caddy
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systemctl reload-or-restart caddy
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# Firewall: ssh + web only.
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ufw allow OpenSSH
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ufw allow 80/tcp
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ufw allow 443/tcp
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ufw --force enable
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echo "host ready for __SLUG__: now run deploy/deploy.sh <ip> from your machine"
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