#!/usr/bin/env bash
# T32: kubectl delete pod에서 --grace-period 생략 시 pod spec의
# terminationGracePeriodSeconds(90s)를 따르는지, 아니면 무조건 30초로 잘리는지 실측.
set -euo pipefail

NS="istio-vt-t32"
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
MANIFEST="${SCRIPT_DIR}/manifest.yaml"

cleanup() {
  echo "=== cleanup: deleting namespace ${NS} ==="
  kubectl delete namespace "${NS}" --wait=false --ignore-not-found
}
trap cleanup EXIT

echo "=== create namespace ${NS} (istio-injection=enabled) ==="
kubectl create namespace "${NS}"
kubectl label namespace "${NS}" istio-injection=enabled --overwrite

echo "=== apply manifest ==="
kubectl apply -f "${MANIFEST}"

echo "=== wait for Ready ==="
kubectl -n "${NS}" wait --for=condition=Ready pod/grace90-pod --timeout=60s

echo "=== timed delete (no --grace-period flag) ==="
T0=$(date +%s)
kubectl -n "${NS}" delete pod grace90-pod --wait=true
T1=$(date +%s)
echo "actual_delete_seconds=$((T1-T0))"

echo "=== events (corroboration) ==="
kubectl -n "${NS}" get events --sort-by='.lastTimestamp' || true