From https://once.com/writebook

bin/docker-entrypoint

@@ -0,0 +1,8 @@
+#!/bin/bash -e
+
+# Enable jemalloc for reduced memory usage and latency.
+if [ -f /usr/lib/*/libjemalloc.so.2 ]; then
+  export LD_PRELOAD="$(echo /usr/lib/*/libjemalloc.so.2) $LD_PRELOAD"
+fi
+
+exec "${@}"