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Docker changes for libnetwork vendoring..

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Signed-off-by: Santhosh Manohar <santhosh@docker.com>
This commit is contained in:
Santhosh Manohar 2016-01-08 13:38:52 -08:00
parent 8ccf5cffa7
commit 64a6dc3558
7 changed files with 22 additions and 56 deletions
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2
api/server/router/network/network_routes.go
View file

@ -182,7 +182,7 @@ func buildNetworkResource(nw libnetwork.Network) *types.NetworkResource {
}
func buildIpamResources(r *types.NetworkResource, nw libnetwork.Network) {
id, ipv4conf, ipv6conf := nw.Info().IpamConfig()
id, _, ipv4conf, ipv6conf := nw.Info().IpamConfig()
r.IPAM.Driver = id

4
container/container_unix.go
View file

@ -269,6 +269,10 @@ func (container *Container) BuildCreateEndpointOptions(n libnetwork.Network) ([]
}
}
if !container.HostConfig.NetworkMode.IsUserDefined() {
createOptions = append(createOptions, libnetwork.CreateOptionDisableResolution())
}
// Other configs are applicable only for the endpoint in the network
// to which container was connected to on docker run.
if n.Name() != container.HostConfig.NetworkMode.NetworkName() &&

2
daemon/container_operations_unix.go
View file

@ -665,7 +665,7 @@ func validateNetworkingConfig(n libnetwork.Network, epConfig *networktypes.Endpo
if !hasUserDefinedIPAddress(epConfig) {
return nil
}
_, nwIPv4Configs, nwIPv6Configs := n.Info().IpamConfig()
_, _, nwIPv4Configs, nwIPv6Configs := n.Info().IpamConfig()
for _, s := range []struct {
ipConfigured bool
subnetConfigs []*libnetwork.IpamConf

2
daemon/daemon_unix.go
View file

@ -607,7 +607,7 @@ func initBridgeDriver(controller libnetwork.NetworkController, config *Config) e
netlabel.GenericData: netOption,
netlabel.EnableIPv6: config.Bridge.EnableIPv6,
}),
libnetwork.NetworkOptionIpam("default", "", v4Conf, v6Conf),
libnetwork.NetworkOptionIpam("default", "", v4Conf, v6Conf, nil),
libnetwork.NetworkOptionDeferIPv6Alloc(deferIPv6Alloc))
if err != nil {
return fmt.Errorf("Error creating default \"bridge\" network: %v", err)

2
daemon/network.go
View file

@ -114,7 +114,7 @@ func (daemon *Daemon) CreateNetwork(name, driver string, ipam network.IPAM, opti
return nil, err
}
nwOptions = append(nwOptions, libnetwork.NetworkOptionIpam(ipam.Driver, "", v4Conf, v6Conf))
nwOptions = append(nwOptions, libnetwork.NetworkOptionIpam(ipam.Driver, "", v4Conf, v6Conf, nil))
nwOptions = append(nwOptions, libnetwork.NetworkOptionDriverOpts(options))
n, err := c.NewNetwork(driver, name, nwOptions...)
if err != nil {

18
docs/userguide/networking/work-with-networks.md
View file

@ -252,24 +252,8 @@ lo Link encap:Local Loopback
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
```
Display the container's `etc/hosts` file:
```bash
/ # cat /etc/hosts
172.17.0.3 498eaaaf328e
127.0.0.1 localhost
::1 localhost ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
172.21.3.3 container3
172.21.3.3 container3.isolated_nw
```
On the `isolated_nw` which was user defined, the Docker network feature updated the `/etc/hosts` with the proper name resolution. Inside of `container2` it is possible to ping `container3` by name.
On the `isolated_nw` which was user defined, the Docker embedded DNS server enables name resolution for other containers in the network. Inside of `container2` it is possible to ping `container3` by name.
```bash
/ # ping -w 4 container3

48
integration-cli/docker_cli_network_unix_test.go
View file

@ -622,27 +622,6 @@ func (s *DockerDaemonSuite) TestDockerNetworkNoDiscoveryDefaultBridgeNetwork(c *
c.Assert(err, checker.IsNil)
c.Assert(string(hosts), checker.Equals, string(hostsPost),
check.Commentf("Unexpected %s change on second network connection", hostsFile))
cName := "container3"
out, err = s.d.Cmd("run", "-d", "--net", network, "--name", cName, "busybox", "top")
c.Assert(err, check.IsNil, check.Commentf(out))
cid3 := strings.TrimSpace(out)
defer s.d.Cmd("stop", cid3)
// container1 etc/hosts file should contain an entry for the third container
hostsPost, err = s.d.Cmd("exec", cid1, "cat", hostsFile)
c.Assert(err, checker.IsNil)
c.Assert(string(hostsPost), checker.Contains, cName,
check.Commentf("Container 1 %s file does not contain entries for named container %q: %s", hostsFile, cName, string(hostsPost)))
// on container3 disconnect, first container's etc/hosts should go back to original form
out, err = s.d.Cmd("network", "disconnect", network, cid3)
c.Assert(err, check.IsNil, check.Commentf(out))
hostsPost, err = s.d.Cmd("exec", cid1, "cat", hostsFile)
c.Assert(err, checker.IsNil)
c.Assert(string(hosts), checker.Equals, string(hostsPost),
check.Commentf("Unexpected %s content after disconnecting from second network", hostsFile))
}
func (s *DockerNetworkSuite) TestDockerNetworkAnonymousEndpoint(c *check.C) {
@ -693,28 +672,27 @@ func (s *DockerNetworkSuite) TestDockerNetworkAnonymousEndpoint(c *check.C) {
out, _ = dockerCmd(c, "run", "-d", "--net", cstmBridgeNw, "--name", cName, "busybox", "top")
cid3 := strings.TrimSpace(out)
// verify etc/hosts file for first two containers contains the named container entry
hosts1post, err = readContainerFileWithExec(cid1, hostsFile)
c.Assert(err, checker.IsNil)
c.Assert(string(hosts1post), checker.Contains, cName,
check.Commentf("Container 1 %s file does not contain entries for named container %q: %s", hostsFile, cName, string(hosts1post)))
// verify that container 1 and 2 can ping the named container
dockerCmd(c, "exec", cid1, "ping", "-c", "1", cName)
dockerCmd(c, "exec", cid2, "ping", "-c", "1", cName)
hosts2post, err := readContainerFileWithExec(cid2, hostsFile)
c.Assert(err, checker.IsNil)
c.Assert(string(hosts2post), checker.Contains, cName,
check.Commentf("Container 2 %s file does not contain entries for named container %q: %s", hostsFile, cName, string(hosts2post)))
// Stop named container and verify first two containers' etc/hosts entries are back to original
// Stop named container and verify first two containers' etc/hosts file hasn't changed
dockerCmd(c, "stop", cid3)
hosts1post, err = readContainerFileWithExec(cid1, hostsFile)
c.Assert(err, checker.IsNil)
c.Assert(string(hosts1), checker.Equals, string(hosts1post),
check.Commentf("Unexpected %s change on anonymous container creation", hostsFile))
check.Commentf("Unexpected %s change on name container creation", hostsFile))
hosts2post, err = readContainerFileWithExec(cid2, hostsFile)
hosts2post, err := readContainerFileWithExec(cid2, hostsFile)
c.Assert(err, checker.IsNil)
c.Assert(string(hosts2), checker.Equals, string(hosts2post),
check.Commentf("Unexpected %s change on anonymous container creation", hostsFile))
check.Commentf("Unexpected %s change on name container creation", hostsFile))
// verify that container 1 and 2 can't ping the named container now
_, _, err = dockerCmdWithError("exec", cid1, "ping", "-c", "1", cName)
c.Assert(err, check.NotNil)
_, _, err = dockerCmdWithError("exec", cid2, "ping", "-c", "1", cName)
c.Assert(err, check.NotNil)
}
func (s *DockerNetworkSuite) TestDockerNetworkLinkOndefaultNetworkOnly(c *check.C) {