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Wire shared MOTD into BBS hub and IRC

Browse source 
Use profullstack.com/motd as the shared Message of the Day across both
the SSH BBS hub and the Ergo IRC server.

- internal/motd: fetch + in-memory cache with background refresh (stdlib
  only); Current() never blocks session start, keeps last value on error.
  Source overridable via AGENTBBS_MOTD_URL.
- hub: append the daily MOTD below the existing welcome/onboarding text.
- IRC: deploy/ergo/refresh-motd.sh pulls /motd into Ergo's ergo.motd and
  rehashes; setup.sh installs it + an ergo-motd.timer (hourly) mirroring
  the ergo-certs timer, with a seeded fallback if the source is offline.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Anthony Ettinger 2026-06-25 11:51:06 +00:00
parent 63548bcbbe
commit fb7722eacc
4 changed files with 177 additions and 6 deletions
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37
deploy/ergo/refresh-motd.sh Executable file
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#!/usr/bin/env bash
#
# refresh-motd.sh — pull the shared Message of the Day from profullstack.com
# into Ergo's MOTD file and reload Ergo if it changed. setup.sh installs this to
# /usr/local/bin/ergo-refresh-motd and runs it from the ergo-motd.timer, so the
# IRC server's MOTD (shown on connect / via /MOTD) tracks profullstack.com/motd.
#
# Ergo resolves the `motd:` path in ircd.yaml relative to the config dir, so the
# file lives at $ERGO_CONF_DIR/ergo.motd (default /etc/ergo/ergo.motd).
set -euo pipefail
MOTD_URL="${MOTD_URL:-https://profullstack.com/motd}"
ERGO_CONF_DIR="${ERGO_CONF_DIR:-/etc/ergo}"
DST="$ERGO_CONF_DIR/ergo.motd"
tmp="$(mktemp)"
trap 'rm -f "$tmp"' EXIT
if curl -fsSL --max-time 10 "$MOTD_URL" -o "$tmp" && [ -s "$tmp" ]; then
if ! cmp -s "$tmp" "$DST"; then
install -m 0644 "$tmp" "$DST"
chown ergo:ergo "$DST" 2>/dev/null || true
echo "updated Ergo MOTD from $MOTD_URL"
# Ergo rehashes config (incl. MOTD) on SIGHUP (systemctl reload).
systemctl reload ergo 2>/dev/null || systemctl restart ergo 2>/dev/null || true
else
echo "Ergo MOTD already current"
fi
elif [ ! -s "$DST" ]; then
# First run and the source is unreachable — seed a minimal MOTD so Ergo has
# something to serve; the timer replaces it once profullstack.com is reachable.
printf '%s\n' "Welcome to AgentBBS IRC." > "$DST"
chown ergo:ergo "$DST" 2>/dev/null || true
echo "MOTD source unreachable; seeded placeholder"
else
echo "MOTD source unreachable; keeping existing MOTD"
fi