Files
Jana Radhakrishnan ef34c93d96 Honor driver side resolv.conf file
For the moment in 1.7.1 since we provide a resolv.conf set api
to the driver honor that so that for host driver we can use the
the host's /etc/resolv.conf file as is rather than putting the
contents through a filtering logic.

It should be noted that the driver side capability to set the
resolv.conf file is most likely going to go away in the future
but this should be fine for 1.7.1

Signed-off-by: Jana Radhakrishnan <mrjana@docker.com>
2015-07-02 10:39:06 -07:00

75 lines
1.7 KiB
Go

package host
import (
"sync"
"github.com/docker/libnetwork/driverapi"
"github.com/docker/libnetwork/types"
)
const networkType = "host"
type driver struct {
network types.UUID
sync.Mutex
}
// Init registers a new instance of host driver
func Init(dc driverapi.DriverCallback) error {
c := driverapi.Capability{
Scope: driverapi.LocalScope,
}
return dc.RegisterDriver(networkType, &driver{}, c)
}
func (d *driver) Config(option map[string]interface{}) error {
return nil
}
func (d *driver) CreateNetwork(id types.UUID, option map[string]interface{}) error {
d.Lock()
defer d.Unlock()
if d.network != "" {
return types.ForbiddenErrorf("only one instance of \"%s\" network is allowed", networkType)
}
d.network = id
return nil
}
func (d *driver) DeleteNetwork(nid types.UUID) error {
return types.ForbiddenErrorf("network of type \"%s\" cannot be deleted", networkType)
}
func (d *driver) CreateEndpoint(nid, eid types.UUID, epInfo driverapi.EndpointInfo, epOptions map[string]interface{}) error {
return nil
}
func (d *driver) DeleteEndpoint(nid, eid types.UUID) error {
return nil
}
func (d *driver) EndpointOperInfo(nid, eid types.UUID) (map[string]interface{}, error) {
return make(map[string]interface{}, 0), nil
}
// Join method is invoked when a Sandbox is attached to an endpoint.
func (d *driver) Join(nid, eid types.UUID, sboxKey string, jinfo driverapi.JoinInfo, options map[string]interface{}) error {
if err := jinfo.SetHostsPath("/etc/hosts"); err != nil {
return err
}
return jinfo.SetResolvConfPath("/etc/resolv.conf")
}
// Leave method is invoked when a Sandbox detaches from an endpoint.
func (d *driver) Leave(nid, eid types.UUID) error {
return nil
}
func (d *driver) Type() string {
return networkType
}