17244: Update docs for -cgroup-parent-subsystem flag.

[arvados.git] / lib / crunchrun / crunchrun.go

diff --git a/lib/crunchrun/crunchrun.go b/lib/crunchrun/crunchrun.go
index 9add35335f39380ca61f78390f0eae1ce7ebda03..80258ec2ab2d66a3e0288dc52847dcf1eba6a256 100644 (file)
--- a/lib/crunchrun/crunchrun.go
+++ b/lib/crunchrun/crunchrun.go
@@ -1911,7 +1911,7 @@ func (command) RunCommand(prog string, args []string, stdin io.Reader, stdout, s
        statInterval := flags.Duration("crunchstat-interval", 10*time.Second, "sampling period for periodic resource usage reporting")
        flags.String("cgroup-root", "/sys/fs/cgroup", "path to sysfs cgroup tree (obsolete, ignored)")
        flags.String("cgroup-parent", "docker", "name of container's parent cgroup (obsolete, ignored)")
-       cgroupParentSubsystem := flags.String("cgroup-parent-subsystem", "", "use current cgroup for given `subsystem` as parent cgroup for container (subsystem argument is only relevant for cgroups v1; in cgroups v2 / unified mode, any non-empty value means use current cgroup)")
+       cgroupParentSubsystem := flags.String("cgroup-parent-subsystem", "", "use current cgroup for given `subsystem` as parent cgroup for container (subsystem argument is only relevant for cgroups v1; in cgroups v2 / unified mode, any non-empty value means use current cgroup); if empty, use the docker daemon's default cgroup parent. See https://doc.arvados.org/main/install/crunch2-slurm/install-dispatch.html#CrunchRunCommand-cgroups")
        caCertsPath := flags.String("ca-certs", "", "Path to TLS root certificates")
        detach := flags.Bool("detach", false, "Detach from parent process and run in the background")
        stdinConfig := flags.Bool("stdin-config", false, "Load config and environment variables from JSON message on stdin")