Make smoke test resolve mapped port via inspect

Author: AnastaZIuk

.github/workflows/docker-publish.yml

@@ -67,14 +67,20 @@ jobs:
  set -euo pipefail
  cid=$(docker run -d -p 0:3000 "$IMAGE_UNDER_TEST")
  trap "docker rm -f $cid >/dev/null 2>&1" EXIT
- port=$(docker port "$cid" 3000/tcp | sed -E 's/.*:([0-9]+)$/\1/')
+ port=$(docker inspect -f '{{ (index (index .NetworkSettings.Ports "3000/tcp") 0).HostPort }}' "$cid")
+ if [ -z "$port" ]; then
+ echo "Failed to resolve mapped port for container $cid" >&2
+ docker logs "$cid" || true
+ exit 1
+ fi
  for i in {1..20}; do
  if curl -fsS "http://127.0.0.1:${port}/" > /dev/null; then
  exit 0
  fi
  sleep 1
  done
  echo "Service did not respond on / after 20s" >&2
+ docker logs "$cid" || true
  exit 1
 
  - name: Log in to GHCR