podman/libpod/network/internal/util/create.go

43 lines
1.1 KiB
Go

package util
import (
"github.com/containers/podman/v3/libpod/define"
"github.com/containers/podman/v3/libpod/network/types"
"github.com/pkg/errors"
)
func CommonNetworkCreate(n NetUtil, network *types.Network) error {
if network.Labels == nil {
network.Labels = map[string]string{}
}
if network.Options == nil {
network.Options = map[string]string{}
}
if network.IPAMOptions == nil {
network.IPAMOptions = map[string]string{}
}
var name string
var err error
// validate the name when given
if network.Name != "" {
if !define.NameRegex.MatchString(network.Name) {
return errors.Wrapf(define.RegexError, "network name %s invalid", network.Name)
}
if _, err := n.Network(network.Name); err == nil {
return errors.Wrapf(define.ErrNetworkExists, "network name %s already used", network.Name)
}
} else {
name, err = GetFreeDeviceName(n)
if err != nil {
return err
}
network.Name = name
// also use the name as interface name when we create a bridge network
if network.Driver == types.BridgeNetworkDriver && network.NetworkInterface == "" {
network.NetworkInterface = name
}
}
return nil
}