Run the load generators against our server: the window holds, memory returns to baseline, no defects

interop-tests/peers/dumbclient/entrypoint.sh

@@ -0,0 +1,23 @@
+#!/bin/sh
+# smpp-dumb-client is one-shot and dials out, so it needs node:2775 already listening - the same
+# problem compose.smppload.yaml's entrypoint solves, and the same fix: a healthcheck this marker
+# satisfies at once, and node depends on it rather than the other way round.
+#
+# Its own smpp.remote config field is fed straight into net.ParseIP with no DNS resolution at all
+# (hdr.go), so the compose service name in every conf/*.yml is a NODE_HOST placeholder, resolved
+# here and substituted into a writable copy before the real binary ever sees the config file.
+set -eu
+
+touch /tmp/healthy
+
+host="${SMPP_HOST:-node}"
+port="${SMPP_PORT:-2775}"
+
+until nc -z "$host" "$port"; do
+	sleep 1
+done
+
+ip="$(getent hosts "$host" | awk '{print $1}' | head -n1)"
+sed "s/NODE_HOST/$ip/" "$1" > /tmp/effective-config.yml
+
+exec "${DUMBCLIENT_BIN:-/app/smpp-dumb-client}" -config /tmp/effective-config.yml