github.com/circular-dark/docker@v1.7.0/daemon/start.go (about)

     1  package daemon
     2  
     3  import (
     4  	"fmt"
     5  
     6  	"github.com/docker/docker/runconfig"
     7  )
     8  
     9  func (daemon *Daemon) ContainerStart(name string, hostConfig *runconfig.HostConfig) error {
    10  	container, err := daemon.Get(name)
    11  	if err != nil {
    12  		return err
    13  	}
    14  
    15  	if container.IsPaused() {
    16  		return fmt.Errorf("Cannot start a paused container, try unpause instead.")
    17  	}
    18  
    19  	if container.IsRunning() {
    20  		return fmt.Errorf("Container already started")
    21  	}
    22  
    23  	if _, err = daemon.verifyHostConfig(hostConfig); err != nil {
    24  		return err
    25  	}
    26  
    27  	// This is kept for backward compatibility - hostconfig should be passed when
    28  	// creating a container, not during start.
    29  	if hostConfig != nil {
    30  		if err := daemon.setHostConfig(container, hostConfig); err != nil {
    31  			return err
    32  		}
    33  	}
    34  
    35  	if err := container.Start(); err != nil {
    36  		container.LogEvent("die")
    37  		return fmt.Errorf("Cannot start container %s: %s", name, err)
    38  	}
    39  
    40  	return nil
    41  }