"exec_die" every 30 seconds

[W11T]

In the journal i noticed messages
run-docker-runtime\x2drunc-moby-<img-id>runc.YEccej.mount: Succeeded.
every 30 seconds.
Running "/usr/bin/curl --no-buffer --unix-socket /var/run/docker.sock http://foo/events" returns

{
  "status": "exec_die",
  "id": ***,
  "from": "ghcr.io/ct-open-source/ctnodered:latest",
  "Type": "container",
  "Action": "exec_die",
...

again every 30 seconds.
What's the reason of all this?

[W11T]

Sorry! My fault!
These are the processes running the healthcheck itself. The container is fine.