fix: make crond non-fatal with sleep-loop fallback

entrypoint.sh

@@ -4,36 +4,33 @@
 #
 # Environment variables:
 #   CLEANUP_CRON_SCHEDULE  - Cron schedule for token cleanup (default: "0 */6 * * *", every 6h)
-#                            Examples:
-#                              "0 */1 * * *"  every hour
-#                              "0 */6 * * *"  every 6 hours (default)
-#                              "0 2 * * *"    daily at 2:00 AM
 #   CLEANUP_STARTUP_DELAY  - Seconds to wait after service is ready before first cleanup (default: 10)
 #
 
-set -e
-
 echo "[entrypoint] Starting up at $(date)"
 
 CLEANUP_CRON_SCHEDULE="${CLEANUP_CRON_SCHEDULE:-0 */6 * * *}"
 CLEANUP_STARTUP_DELAY="${CLEANUP_STARTUP_DELAY:-10}"
+CRON_OK=0
 
 mkdir -p /tmp/logs /tmp/crontabs
 
 # Write crontab to /tmp (HuggingFace root filesystem is read-only)
 cat > /tmp/crontabs/root << EOF
-# CLIProxyAPI invalid token cleanup
 ${CLEANUP_CRON_SCHEDULE} /app/cleanup_tokens.sh >> /tmp/logs/cleanup.log 2>&1
 EOF
 
 echo "[entrypoint] Cleanup schedule: ${CLEANUP_CRON_SCHEDULE}"
 
-# Start crond (busybox) with custom crontab directory
-crond -c /tmp/crontabs -l 8 -L /tmp/logs/crond.log
-echo "[entrypoint] crond started"
+# Try crond; if it fails (e.g. permission issues), fall back to a sleep loop
+if crond -c /tmp/crontabs -l 8 -L /tmp/logs/crond.log 2>/dev/null; then
+    echo "[entrypoint] crond started"
+    CRON_OK=1
+else
+    echo "[entrypoint] WARNING: crond failed, will use sleep-loop fallback for scheduled cleanup"
+fi
 
-# Wait for the API to be ready, then run the initial cleanup in background.
-# This runs in a subshell so it doesn't block the main service from starting.
+# Background: wait for API ready, run initial cleanup, then optionally loop
 (
     echo "[entrypoint] Waiting for API to be ready (polling localhost:7860)..."
     MAX_WAIT=120
@@ -50,6 +47,16 @@ echo "[entrypoint] crond started"
     sleep "$CLEANUP_STARTUP_DELAY"
     echo "[entrypoint] Running initial token cleanup..."
     /app/cleanup_tokens.sh >> /tmp/logs/cleanup.log 2>&1
+
+    # If crond failed, run cleanup in a sleep loop (every 6 hours = 21600s)
+    if [ "$CRON_OK" = "0" ]; then
+        echo "[entrypoint] Starting sleep-loop cleanup (every 6h)..."
+        while true; do
+            sleep 21600
+            echo "[cleanup-loop] Running scheduled cleanup at $(date)"
+            /app/cleanup_tokens.sh >> /tmp/logs/cleanup.log 2>&1
+        done
+    fi
 ) &
 
 echo "[entrypoint] Launching cli-proxy-api..."