Implement app deployment improvements

tools/smoke-service.sh

@@ -0,0 +1,47 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+usage() {
+  cat <<'USAGE'
+Run a service smoke test from a persistent pod, then exec curl inside it.
+
+Usage:
+  NAMESPACE=<namespace> tools/smoke-service.sh http://service.namespace.svc/path
+
+Optional environment:
+  POD_NAME     Reusable smoke pod name (default: service-smoke)
+  SMOKE_IMAGE  Image with curl installed (default: curlimages/curl:8.10.1)
+  CLEANUP      Delete the smoke pod after the test (default: false)
+USAGE
+}
+
+if [[ "${1:-}" == "-h" || "${1:-}" == "--help" || $# -ne 1 ]]; then
+  usage
+  exit 0
+fi
+
+target_url="$1"
+NAMESPACE="${NAMESPACE:-default}"
+POD_NAME="${POD_NAME:-service-smoke}"
+SMOKE_IMAGE="${SMOKE_IMAGE:-curlimages/curl:8.10.1}"
+CLEANUP="${CLEANUP:-false}"
+
+if ! command -v kubectl >/dev/null 2>&1; then
+  echo "ERROR: missing required command: kubectl" >&2
+  exit 1
+fi
+
+if ! kubectl get pod "$POD_NAME" -n "$NAMESPACE" >/dev/null 2>&1; then
+  kubectl run "$POD_NAME" \
+    -n "$NAMESPACE" \
+    --image="$SMOKE_IMAGE" \
+    --restart=Never \
+    --command -- sleep 3600
+fi
+
+kubectl wait -n "$NAMESPACE" --for=condition=Ready "pod/$POD_NAME" --timeout=90s
+kubectl exec -n "$NAMESPACE" "$POD_NAME" -- curl -fsS "$target_url"
+
+if [[ "$CLEANUP" == "true" ]]; then
+  kubectl delete pod "$POD_NAME" -n "$NAMESPACE" --wait=false
+fi