fix: handle MaxMind 429 and backoff

asn-updater/entrypoint.sh

@@ -2,12 +2,16 @@
 set -eu
 
 INTERVAL_SECONDS="${INTERVAL_SECONDS:-2592000}"
+RETRY_SECONDS="${RETRY_SECONDS:-3600}"
 echo "[start] updater interval=${INTERVAL_SECONDS}s out_dir=${OUT_DIR:-/data}"
 
 while true; do
   echo "[run] update now"
-  python /app/update.py
-  echo "[sleep] ${INTERVAL_SECONDS}s"
-  sleep "${INTERVAL_SECONDS}"
+  if python /app/update.py; then
+    echo "[sleep] ${INTERVAL_SECONDS}s"
+    sleep "${INTERVAL_SECONDS}"
+  else
+    echo "[warn] update failed; retry in ${RETRY_SECONDS}s"
+    sleep "${RETRY_SECONDS}"
+  fi
 done
-