52 lines
1.3 KiB
Go
52 lines
1.3 KiB
Go
package daemon
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import (
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"fmt"
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"runtime"
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"github.com/docker/docker/runconfig"
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)
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// ContainerStart starts a container.
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func (daemon *Daemon) ContainerStart(name string, hostConfig *runconfig.HostConfig) error {
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container, err := daemon.Get(name)
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if err != nil {
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return err
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}
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if container.isPaused() {
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return fmt.Errorf("Cannot start a paused container, try unpause instead.")
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}
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if container.IsRunning() {
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return fmt.Errorf("Container already started")
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}
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// Windows does not have the backwards compatibility issue here.
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if runtime.GOOS != "windows" {
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// This is kept for backward compatibility - hostconfig should be passed when
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// creating a container, not during start.
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if hostConfig != nil {
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if err := daemon.setHostConfig(container, hostConfig); err != nil {
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return err
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}
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}
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} else {
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if hostConfig != nil {
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return fmt.Errorf("Supplying a hostconfig on start is not supported. It should be supplied on create")
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}
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}
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// check if hostConfig is in line with the current system settings.
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// It may happen cgroups are umounted or the like.
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if _, err = daemon.verifyContainerSettings(container.hostConfig, nil); err != nil {
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return err
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}
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if err := container.Start(); err != nil {
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return fmt.Errorf("Cannot start container %s: %s", name, err)
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}
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return nil
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}
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