open-nomad/drivers/exec/driver_linux.go

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package exec
import (
"github.com/hashicorp/nomad/client/fingerprint"
"github.com/hashicorp/nomad/plugins/drivers"
"golang.org/x/sys/unix"
)
func (d *ExecDriver) buildFingerprint() *drivers.Fingerprint {
fp := &drivers.Fingerprint{
Attributes: map[string]string{},
Health: drivers.HealthStateHealthy,
HealthDescription: "healthy",
}
mount, err := fingerprint.FindCgroupMountpointDir()
if err != nil {
fp.Health = drivers.HealthStateUnhealthy
fp.HealthDescription = "failed to discover cgroup mount point"
d.logger.Warn(fp.HealthDescription, "error", err)
return fp
}
if mount == "" {
fp.Health = drivers.HealthStateUnhealthy
fp.HealthDescription = "cgroups are unavailable"
return fp
}
if unix.Geteuid() != 0 {
fp.Health = drivers.HealthStateUnhealthy
fp.HealthDescription = "exec driver must run as root"
return fp
}
fp.Attributes["driver.exec"] = "1"
return fp
}