github.com/ruphin/docker@v1.10.1/runconfig/hostconfig_unix.go (about) 1 // +build !windows 2 3 package runconfig 4 5 import ( 6 "fmt" 7 "runtime" 8 "strings" 9 10 "github.com/docker/engine-api/types/container" 11 ) 12 13 // DefaultDaemonNetworkMode returns the default network stack the daemon should 14 // use. 15 func DefaultDaemonNetworkMode() container.NetworkMode { 16 return container.NetworkMode("bridge") 17 } 18 19 // IsPreDefinedNetwork indicates if a network is predefined by the daemon 20 func IsPreDefinedNetwork(network string) bool { 21 n := container.NetworkMode(network) 22 return n.IsBridge() || n.IsHost() || n.IsNone() || n.IsDefault() 23 } 24 25 // ValidateNetMode ensures that the various combinations of requested 26 // network settings are valid. 27 func ValidateNetMode(c *container.Config, hc *container.HostConfig) error { 28 // We may not be passed a host config, such as in the case of docker commit 29 if hc == nil { 30 return nil 31 } 32 parts := strings.Split(string(hc.NetworkMode), ":") 33 if parts[0] == "container" { 34 if len(parts) < 2 || parts[1] == "" { 35 return fmt.Errorf("--net: invalid net mode: invalid container format container:<name|id>") 36 } 37 } 38 39 if (hc.NetworkMode.IsHost() || hc.NetworkMode.IsContainer()) && c.Hostname != "" { 40 return ErrConflictNetworkHostname 41 } 42 43 if hc.NetworkMode.IsHost() && len(hc.Links) > 0 { 44 return ErrConflictHostNetworkAndLinks 45 } 46 47 if hc.NetworkMode.IsContainer() && len(hc.Links) > 0 { 48 return ErrConflictContainerNetworkAndLinks 49 } 50 51 if (hc.NetworkMode.IsHost() || hc.NetworkMode.IsContainer()) && len(hc.DNS) > 0 { 52 return ErrConflictNetworkAndDNS 53 } 54 55 if (hc.NetworkMode.IsContainer() || hc.NetworkMode.IsHost()) && len(hc.ExtraHosts) > 0 { 56 return ErrConflictNetworkHosts 57 } 58 59 if (hc.NetworkMode.IsContainer() || hc.NetworkMode.IsHost()) && c.MacAddress != "" { 60 return ErrConflictContainerNetworkAndMac 61 } 62 63 if hc.NetworkMode.IsContainer() && (len(hc.PortBindings) > 0 || hc.PublishAllPorts == true) { 64 return ErrConflictNetworkPublishPorts 65 } 66 67 if hc.NetworkMode.IsContainer() && len(c.ExposedPorts) > 0 { 68 return ErrConflictNetworkExposePorts 69 } 70 return nil 71 } 72 73 // ValidateIsolationLevel performs platform specific validation of the 74 // isolation level in the hostconfig structure. Linux only supports "default" 75 // which is LXC container isolation 76 func ValidateIsolationLevel(hc *container.HostConfig) error { 77 // We may not be passed a host config, such as in the case of docker commit 78 if hc == nil { 79 return nil 80 } 81 if !hc.Isolation.IsValid() { 82 return fmt.Errorf("invalid --isolation: %q - %s only supports 'default'", hc.Isolation, runtime.GOOS) 83 } 84 return nil 85 }