5263bea70f
Perform the validation when the daemon starts instead of performing these validations for each individual container, so that we can fail early. Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
37 lines
1.2 KiB
Go
37 lines
1.2 KiB
Go
package main
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import (
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cdcgroups "github.com/containerd/cgroups"
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systemdDaemon "github.com/coreos/go-systemd/v22/daemon"
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"github.com/docker/docker/daemon/config"
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"github.com/docker/docker/pkg/sysinfo"
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"github.com/pkg/errors"
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)
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// preNotifyReady sends a message to the host when the API is active, but before the daemon is
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func preNotifyReady() {
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}
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// notifyReady sends a message to the host when the server is ready to be used
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func notifyReady() {
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// Tell the init daemon we are accepting requests
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go systemdDaemon.SdNotify(false, systemdDaemon.SdNotifyReady)
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}
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// notifyStopping sends a message to the host when the server is shutting down
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func notifyStopping() {
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go systemdDaemon.SdNotify(false, systemdDaemon.SdNotifyStopping)
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}
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func validateCPURealtimeOptions(config *config.Config) error {
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if config.CPURealtimePeriod == 0 && config.CPURealtimeRuntime == 0 {
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return nil
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}
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if cdcgroups.Mode() == cdcgroups.Unified {
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return errors.New("daemon-scoped cpu-rt-period and cpu-rt-runtime are not implemented for cgroup v2")
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}
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if !sysinfo.New().CPURealtime {
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return errors.New("daemon-scoped cpu-rt-period and cpu-rt-runtime are not supported by the kernel")
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}
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return nil
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}
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