github.com/mheon/docker@v0.11.2-0.20150922122814-44f47903a831/runconfig/parse_unix.go (about)

     1  // +build !windows
     2  
     3  package runconfig
     4  
     5  import (
     6  	"fmt"
     7  	"strings"
     8  )
     9  
    10  // ValidateNetMode ensures that the various combinations of requested
    11  // network settings are valid.
    12  func ValidateNetMode(c *Config, hc *HostConfig) error {
    13  	// We may not be passed a host config, such as in the case of docker commit
    14  	if hc == nil {
    15  		return nil
    16  	}
    17  	parts := strings.Split(string(hc.NetworkMode), ":")
    18  	switch mode := parts[0]; mode {
    19  	case "default", "bridge", "none", "host":
    20  	case "container":
    21  		if len(parts) < 2 || parts[1] == "" {
    22  			return fmt.Errorf("--net: invalid net mode: invalid container format container:<name|id>")
    23  		}
    24  	default:
    25  		return fmt.Errorf("invalid --net: %s", hc.NetworkMode)
    26  	}
    27  
    28  	if (hc.NetworkMode.IsHost() || hc.NetworkMode.IsContainer()) && c.Hostname != "" {
    29  		return ErrConflictNetworkHostname
    30  	}
    31  
    32  	if hc.NetworkMode.IsHost() && len(hc.Links) > 0 {
    33  		return ErrConflictHostNetworkAndLinks
    34  	}
    35  
    36  	if hc.NetworkMode.IsContainer() && len(hc.Links) > 0 {
    37  		return ErrConflictContainerNetworkAndLinks
    38  	}
    39  
    40  	if (hc.NetworkMode.IsHost() || hc.NetworkMode.IsContainer()) && len(hc.DNS) > 0 {
    41  		return ErrConflictNetworkAndDNS
    42  	}
    43  
    44  	if (hc.NetworkMode.IsContainer() || hc.NetworkMode.IsHost()) && len(hc.ExtraHosts) > 0 {
    45  		return ErrConflictNetworkHosts
    46  	}
    47  
    48  	if (hc.NetworkMode.IsContainer() || hc.NetworkMode.IsHost()) && c.MacAddress != "" {
    49  		return ErrConflictContainerNetworkAndMac
    50  	}
    51  
    52  	if hc.NetworkMode.IsContainer() && (len(hc.PortBindings) > 0 || hc.PublishAllPorts == true) {
    53  		return ErrConflictNetworkPublishPorts
    54  	}
    55  
    56  	if hc.NetworkMode.IsContainer() && len(c.ExposedPorts) > 0 {
    57  		return ErrConflictNetworkExposePorts
    58  	}
    59  	return nil
    60  }