claude (blind_chess)
b01f324c3b
A second, LAN-only deploy alongside the CT 690 / chess.sethpc.xyz instance. Runs on VDJ-RIG as a persistent systemd daemon, served on port 80 and reachable at http://chess.local via an mDNS alias. - blind-chess-local.service: server unit; binds port 80 as the non-root blindchess user via CAP_NET_BIND_SERVICE. - chess-mdns-alias{,.service}: publishes the chess.local mDNS name with avahi-publish -a -R (-R skips the reverse PTR, which would otherwise collide with the host's own <hostname>.local record). - install-local.sh: idempotent root-side installer (Node 22 via NodeSource, avahi-utils, blindchess user, /opt/blind-chess, units). - CLAUDE.md: documents the local instance under Operations. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
22 lines
934 B
Bash
22 lines
934 B
Bash
#!/bin/bash
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# Publish "chess.local" as an mDNS alias for this host's primary IPv4 address.
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# Invoked by chess-mdns-alias.service (blind_chess local deploy).
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#
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# avahi-daemon already advertises the host's own <hostname>.local; this adds
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# the friendly "chess.local" name pointing at the same machine. Runs in the
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# foreground holding the registration until the service is stopped.
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set -euo pipefail
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IP="$(hostname -I | awk '{print $1}')"
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if [ -z "$IP" ]; then
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echo "chess-mdns-alias: no IPv4 address found" >&2
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exit 1
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fi
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echo "chess-mdns-alias: publishing chess.local -> $IP"
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# -R/--no-reverse: skip the reverse (PTR) record. avahi-daemon already owns the
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# PTR for this IP via the host's own <hostname>.local, so publishing chess.local
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# for the same address *with* a reverse entry collides ("Local name collision").
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# Clients only need the forward A record, which -a still publishes.
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exec avahi-publish -a -R chess.local "$IP"
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