Подготовить skeleton лабораторной 3 по мессенджеру

scripts/stop-one.example.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+set -eu
+# TODO: copy to stop-one.sh, map TARGET_INSTANCE_ID to ONE API container/task.
+# Stop that instance and leave it stopped; no stop of DB/LB/volumes.
+# Return quickly (within 10 s); the test sends requests during this script.
+# Restore the replica explicitly after the test. Never print credentials.
+: "${TARGET_INSTANCE_ID:?test provides target API instance alias}"
+printf '%s
+' 'TODO: implement stop-one.sh for your infrastructure' >&2
+exit 2