Nomad changes

scripts/publish/docker/dry-run-summary.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+image="${IMAGE:-}"
+version="${VERSION:-}"
+tag_suffix="${TAG_SUFFIX:-}"
+
+if [ -z "$image" ] || [ -z "$version" ]; then
+  echo "Usage: set IMAGE and VERSION (optional TAG_SUFFIX) env vars" >&2
+  exit 2
+fi
+
+echo "Dry run requested; Docker image ${image}:${version}${tag_suffix} tested but not pushed." >>"$GITHUB_STEP_SUMMARY"