moby--moby/runconfig/hostconfig_unix.go

// +build !windows

package runconfig

import (
	"strings"
)

// IsValid indicates is an isolation level is valid
func (i IsolationLevel) IsValid() bool {
	return i.IsDefault()
}

// IsPrivate indicates whether container uses it's private network stack.
func (n NetworkMode) IsPrivate() bool {
	return !(n.IsHost() || n.IsContainer())
}

// IsDefault indicates whether container uses the default network stack.
func (n NetworkMode) IsDefault() bool {
	return n == "default"
}

// DefaultDaemonNetworkMode returns the default network stack the daemon should
// use.
func DefaultDaemonNetworkMode() NetworkMode {
	return NetworkMode("bridge")
}

// NetworkName returns the name of the network stack.
func (n NetworkMode) NetworkName() string {
	if n.IsBridge() {
		return "bridge"
	} else if n.IsHost() {
		return "host"
	} else if n.IsContainer() {
		return "container"
	} else if n.IsNone() {
		return "none"
	} else if n.IsDefault() {
		return "default"
	} else if n.IsUserDefined() {
		return n.UserDefined()
	}
	return ""
}

// IsBridge indicates whether container uses the bridge network stack
func (n NetworkMode) IsBridge() bool {
	return n == "bridge"
}

// IsHost indicates whether container uses the host network stack.
func (n NetworkMode) IsHost() bool {
	return n == "host"
}

// IsContainer indicates whether container uses a container network stack.
func (n NetworkMode) IsContainer() bool {
	parts := strings.SplitN(string(n), ":", 2)
	return len(parts) > 1 && parts[0] == "container"
}

// IsNone indicates whether container isn't using a network stack.
func (n NetworkMode) IsNone() bool {
	return n == "none"
}

// IsUserDefined indicates user-created network
func (n NetworkMode) IsUserDefined() bool {
	return !n.IsDefault() && !n.IsBridge() && !n.IsHost() && !n.IsNone() && !n.IsContainer()
}

// IsPreDefinedNetwork indicates if a network is predefined by the daemon
func IsPreDefinedNetwork(network string) bool {
	n := NetworkMode(network)
	return n.IsBridge() || n.IsHost() || n.IsNone()
}

//UserDefined indicates user-created network
func (n NetworkMode) UserDefined() string {
	if n.IsUserDefined() {
		return string(n)
	}
	return ""
}

// MergeConfigs merges the specified container Config and HostConfig.
// It creates a ContainerConfigWrapper.
func MergeConfigs(config *Config, hostConfig *HostConfig) *ContainerConfigWrapper {
	return &ContainerConfigWrapper{
		config,
		hostConfig,
		"", nil,
	}
}