Description
To reproduce, start influxd using docker with a custom port binding:
docker run -p 9086:8086 influxdb:latest
Then, go through the onboarding via the UI (accessed via http://localhost:9086 in this case) and chose "quick start" - this will result in a scraper being created. The scraper will be set up to use http://localhost:9086/metrics as the target, but this won't work, because for the server running inside the docker container http://localhost:9086 is not valid; it actually needs to be http://localhost:8086. Deleting the broken scraper and creating a new scraper with the URL http://localhost:8086/metrics works as expected.
It doesn't seem like there's a quick fix for this since it would involve the UI somehow knowing if it is a docker container or not. It may be viable to allow the user to customize/confirm their scraper URL as part of onboarding if they chose the quick start.