OBuilder has support for running health checks to identify issues with the platform it is running on. Presently those checks assume a Linux platform with Docker being available. eg
$ obuilder healthcheck --store=zfs:tank
Healthcheck passed
Now that OBuilder has support for FreeBSD and macOS that do not use docker, we should drop the docker installation requirement and implement a more suitable health check on those platforms.
In particular on FreeBSD, we install a docker client binary to satisfy this requirement but never use it to perform builds. Similarly for macOS
OBuilder has support for running health checks to identify issues with the platform it is running on. Presently those checks assume a Linux platform with Docker being available. eg
Now that OBuilder has support for FreeBSD and macOS that do not use docker, we should drop the docker installation requirement and implement a more suitable health check on those platforms.
In particular on FreeBSD, we install a docker client binary to satisfy this requirement but never use it to perform builds. Similarly for macOS