# Radarr With Healthcheck Simple healthcheck that polls the official Radarr v3 API to see if there are any problems. Based on the `linuxserver/radarr:preview` image. ## Environmental Variables Both MUST be defined otherwise the healthcheck will fail. - `RADARR_URL` - The URL to your Radarr container. Either an IP address with port number or URL if you're using a reverse proxy. - `APIKEY` - Can be found in Settings -> General.