| package main |
| |
| import ( |
| cdcgroups "github.com/containerd/cgroups/v3" |
| systemdDaemon "github.com/coreos/go-systemd/v22/daemon" |
| "github.com/docker/docker/daemon/config" |
| "github.com/docker/docker/pkg/sysinfo" |
| "github.com/pkg/errors" |
| ) |
| |
| // preNotifyReady sends a message to the host when the API is active, but before the daemon is |
| func preNotifyReady() { |
| } |
| |
| // notifyReady sends a message to the host when the server is ready to be used |
| func notifyReady() { |
| // Tell the init daemon we are accepting requests |
| go systemdDaemon.SdNotify(false, systemdDaemon.SdNotifyReady) |
| } |
| |
| // notifyStopping sends a message to the host when the server is shutting down |
| func notifyStopping() { |
| go systemdDaemon.SdNotify(false, systemdDaemon.SdNotifyStopping) |
| } |
| |
| func validateCPURealtimeOptions(config *config.Config) error { |
| if config.CPURealtimePeriod == 0 && config.CPURealtimeRuntime == 0 { |
| return nil |
| } |
| if cdcgroups.Mode() == cdcgroups.Unified { |
| return errors.New("daemon-scoped cpu-rt-period and cpu-rt-runtime are not implemented for cgroup v2") |
| } |
| if !sysinfo.New().CPURealtime { |
| return errors.New("daemon-scoped cpu-rt-period and cpu-rt-runtime are not supported by the kernel") |
| } |
| return nil |
| } |