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moby--moby/daemon/utils.go

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package daemon
import (
"errors"
"fmt"
"strings"
"github.com/docker/docker/nat"
"github.com/docker/docker/runconfig"
)
func migratePortMappings(config *runconfig.Config, hostConfig *runconfig.HostConfig) error {
if config.PortSpecs != nil {
ports, bindings, err := nat.ParsePortSpecs(config.PortSpecs)
if err != nil {
return err
}
config.PortSpecs = nil
if len(bindings) > 0 {
if hostConfig == nil {
hostConfig = &runconfig.HostConfig{}
}
hostConfig.PortBindings = bindings
}
if config.ExposedPorts == nil {
config.ExposedPorts = make(nat.PortSet, len(ports))
}
for k, v := range ports {
config.ExposedPorts[k] = v
}
}
return nil
}
func mergeLxcConfIntoOptions(hostConfig *runconfig.HostConfig) ([]string, error) {
if hostConfig == nil {
return nil, nil
}
out := []string{}
// merge in the lxc conf options into the generic config map
if lxcConf := hostConfig.LxcConf; lxcConf != nil {
lxSlice := lxcConf.Slice()
for _, pair := range lxSlice {
// because lxc conf gets the driver name lxc.XXXX we need to trim it off
// and let the lxc driver add it back later if needed
if !strings.Contains(pair.Key, ".") {
return nil, errors.New("Illegal Key passed into LXC Configurations")
}
parts := strings.SplitN(pair.Key, ".", 2)
out = append(out, fmt.Sprintf("%s=%s", parts[1], pair.Value))
}
}
return out, nil
}