func checkSystem() error {
// check OS version for compatibility, ensure running in global zone
var err error
var id C.zoneid_t
if id, err = C.getzoneid(); err != nil {
return fmt.Errorf("Exiting. Error getting zone id: %+v", err)
}
if int(id) != 0 {
return fmt.Errorf("Exiting because the Docker daemon is not running in the global zone")
}
v, err := kernel.GetKernelVersion()
if kernel.CompareKernelVersion(*v, kernel.VersionInfo{Kernel: 5, Major: 12, Minor: 0}) < 0 {
return fmt.Errorf("Your Solaris kernel version: %s doesn't support Docker. Please upgrade to 5.12.0", v.String())
}
return err
}
// IsContainerized returns true if we are running inside a container.
func IsContainerized() (bool, error) {
if C.getzoneid() != 0 {
return true, nil
}
return false, nil
}