Perhaps suggest waiting period when the dbpedia spotlight docker container is run for the first time

[ChristophLeonhardt]

If you run the docker container for the very first time as suggested by the README (see chunk below), the container seems to start by downloading the language model itself. I think that it is important that the container is not queried while doing so as otherwise, the download seems to be interrupted, leading to an unusable setup. Waiting for a couple of minutes in the first start up seemed to work for me, at least.

dbpedia/README.Rmd

Lines 48 to 53 in 01c5d91

	docker run -tid \
	--restart unless-stopped \
	--name dbpedia-spotlight.de \
	--mount source=spotlight-model,target=/opt/spotlight \
	-p 2222:80 \
	dbpedia/dbpedia-spotlight spotlight.sh de

I am not sure if this is a general problem, but maybe a hint in the README that the container might be ready to use only after a few minutes if you use it for the first time might be useful for other users as well.

[ablaette]

You can run this command in the terminal for checking the status of a docker container, see: https://docs.docker.com/reference/cli/docker/inspect/

docker inspect --type=container --format '{{.State.Running}}' CONTAINER-ID

You need the Container ID for this command. So to prepare querying the container like this, I included getting the Container id from calling docker container ls in dbpedia_spotlight_status().

container_id <- dbpedia_spotlight_status()[["container_id"]]
system2(
  command = "docker",
  args = c(
    "inspect",
    "--type=container",
    "--format '{{.State.Running}}'",
    container_id
  )
)

What I do not know: If the container is running, does it imply that the container is fully loaded? So we may need another flavour of docker inspect.