Docker healthcheck

When WebSummoner UI is launched inside of container, the /health-check command would run every 30s inside of a container to check if everything is still okay. To adjust the command in a custom extended container, you could supply it with arg -uri http://localhost:8080/ping in an overridden HEALTHCHECK directive.

In case the status is unhealthy, you can get more insights with docker inspect --format "{{json .State.Health}}" <container_id> command, that would give something like:

{
  "Status": "healthy",
  "FailingStreak": 0,
  "Log": [
    {
      "Start": "2020-02-10T00:21:57.7672821Z",
      "End": "2020-02-10T00:21:57.9054291Z",
      "ExitCode": 0,
      "Output": "2020/02/10 00:21:57 OK\n"
    },
    {
      "Start": "2020-02-10T00:22:27.8795685Z",
      "End": "2020-02-10T00:22:28.0146071Z",
      "ExitCode": 0,
      "Output": "2020/02/10 00:22:27 OK\n"
    }
  ]
}