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2026-07-13 12:58:18 +08:00

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3.0 KiB
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#!/bin/bash
set -e
cleanup() {
kill $AGENT_PID $NEXTJS_PID $WATCHDOG_PID 2>/dev/null || true
}
trap cleanup EXIT
echo "========================================="
echo "[entrypoint] Starting showcase package: ms-agent-dotnet"
echo "[entrypoint] Time: $(date -u)"
echo "[entrypoint] PORT=${PORT:-not set}"
echo "[entrypoint] NODE_ENV=${NODE_ENV:-not set}"
echo "========================================="
if [ -z "$AZURE_OPENAI_API_KEY" ] && [ -z "$OPENAI_API_KEY" ]; then
echo "[entrypoint] WARNING: Neither AZURE_OPENAI_API_KEY nor OPENAI_API_KEY is set! Agent will fail."
fi
# Start .NET agent backend on :8000 with log prefixing so its output is
# distinguishable from Next.js in the Railway log stream.
# `awk ... fflush()` line-flushes each prefixed line to the container log.
echo "[entrypoint] Starting .NET agent on port 8000..."
dotnet /agent/ProverbsAgent.dll --urls "http://0.0.0.0:8000" &> >(awk '{print "[agent] " $0; fflush()}') &
AGENT_PID=$!
sleep 3
if kill -0 $AGENT_PID 2>/dev/null; then
echo "[entrypoint] Agent started (PID: $AGENT_PID)"
else
echo "[entrypoint] ERROR: Agent failed to start — exiting"
exit 1
fi
echo "========================================="
echo "[entrypoint] Starting Next.js frontend on port ${PORT:-10000}..."
echo "========================================="
PORT=${PORT:-10000}
env NODE_ENV=production npx next start --port $PORT &> >(awk '{print "[nextjs] " $0; fflush()}') &
NEXTJS_PID=$!
echo "[entrypoint] Next.js started (PID: $NEXTJS_PID)"
# Watchdog: Railway deploys of showcase packages have been observed to hit a
# silent agent hang — the agent process stays alive (so `wait -n` never
# fires and the container never restarts) but stops responding on :8000.
# Poll the agent's /health endpoint every 30s; after 3 consecutive failures
# (~90s of unreachable agent), kill the agent process so `wait -n` returns
# and Railway restarts the container. Generalized from
# showcase/integrations/crewai-crews/entrypoint.sh (PRs #4114 + #4115).
(
FAILS=0
while sleep 30; do
if ! kill -0 $AGENT_PID 2>/dev/null; then
break
fi
if curl -fsS --max-time 5 http://127.0.0.1:8000/health > /dev/null 2>&1; then
FAILS=0
else
FAILS=$((FAILS + 1))
echo "[watchdog] Agent health probe failed (count=$FAILS)"
if [ $FAILS -ge 3 ]; then
echo "[watchdog] Agent unresponsive for ~90s — killing PID $AGENT_PID to trigger container restart"
kill -9 $AGENT_PID 2>/dev/null || true
break
fi
fi
done
) &
WATCHDOG_PID=$!
echo "[entrypoint] Watchdog started (PID: $WATCHDOG_PID)"
echo "[entrypoint] All processes running. Waiting..."
wait -n $AGENT_PID $NEXTJS_PID
EXIT_CODE=$?
if ! kill -0 $AGENT_PID 2>/dev/null; then
echo "[entrypoint] Agent (PID: $AGENT_PID) exited with code $EXIT_CODE"
elif ! kill -0 $NEXTJS_PID 2>/dev/null; then
echo "[entrypoint] Next.js (PID: $NEXTJS_PID) exited with code $EXIT_CODE"
else
echo "[entrypoint] A process exited with code $EXIT_CODE"
fi
exit $EXIT_CODE