Golang libnetwork.OptionResolvConfPath函数代码示例

func (sc *sandboxCreate) parseOptions() []libnetwork.SandboxOption {
	var setFctList []libnetwork.SandboxOption
	if sc.HostName != "" {
		setFctList = append(setFctList, libnetwork.OptionHostname(sc.HostName))
	}
	if sc.DomainName != "" {
		setFctList = append(setFctList, libnetwork.OptionDomainname(sc.DomainName))
	}
	if sc.HostsPath != "" {
		setFctList = append(setFctList, libnetwork.OptionHostsPath(sc.HostsPath))
	}
	if sc.ResolvConfPath != "" {
		setFctList = append(setFctList, libnetwork.OptionResolvConfPath(sc.ResolvConfPath))
	}
	if sc.UseDefaultSandbox {
		setFctList = append(setFctList, libnetwork.OptionUseDefaultSandbox())
	}
	if sc.DNS != nil {
		for _, d := range sc.DNS {
			setFctList = append(setFctList, libnetwork.OptionDNS(d))
		}
	}
	if sc.ExtraHosts != nil {
		for _, e := range sc.ExtraHosts {
			setFctList = append(setFctList, libnetwork.OptionExtraHost(e.Name, e.Address))
		}
	}
	return setFctList
}

func setupPathsAndSandboxOptions(container *container.Container, sboxOptions *[]libnetwork.SandboxOption) error {
	var err error

	container.HostsPath, err = container.GetRootResourcePath("hosts")
	if err != nil {
		return err
	}
	*sboxOptions = append(*sboxOptions, libnetwork.OptionHostsPath(container.HostsPath))

	container.ResolvConfPath, err = container.GetRootResourcePath("resolv.conf")
	if err != nil {
		return err
	}
	*sboxOptions = append(*sboxOptions, libnetwork.OptionResolvConfPath(container.ResolvConfPath))
	return nil
}

func (daemon *Daemon) buildSandboxOptions(container *Container, n libnetwork.Network) ([]libnetwork.SandboxOption, error) {
	var (
		sboxOptions []libnetwork.SandboxOption
		err         error
		dns         []string
		dnsSearch   []string
		dnsOptions  []string
	)

	sboxOptions = append(sboxOptions, libnetwork.OptionHostname(container.Config.Hostname),
		libnetwork.OptionDomainname(container.Config.Domainname))

	if container.hostConfig.NetworkMode.IsHost() {
		sboxOptions = append(sboxOptions, libnetwork.OptionUseDefaultSandbox())
		sboxOptions = append(sboxOptions, libnetwork.OptionOriginHostsPath("/etc/hosts"))
		sboxOptions = append(sboxOptions, libnetwork.OptionOriginResolvConfPath("/etc/resolv.conf"))
	} else if daemon.execDriver.SupportsHooks() {
		// OptionUseExternalKey is mandatory for userns support.
		// But optional for non-userns support
		sboxOptions = append(sboxOptions, libnetwork.OptionUseExternalKey())
	}

	container.HostsPath, err = container.getRootResourcePath("hosts")
	if err != nil {
		return nil, err
	}
	sboxOptions = append(sboxOptions, libnetwork.OptionHostsPath(container.HostsPath))

	container.ResolvConfPath, err = container.getRootResourcePath("resolv.conf")
	if err != nil {
		return nil, err
	}
	sboxOptions = append(sboxOptions, libnetwork.OptionResolvConfPath(container.ResolvConfPath))

	if len(container.hostConfig.DNS) > 0 {
		dns = container.hostConfig.DNS
	} else if len(daemon.configStore.DNS) > 0 {
		dns = daemon.configStore.DNS
	}

	for _, d := range dns {
		sboxOptions = append(sboxOptions, libnetwork.OptionDNS(d))
	}

	if len(container.hostConfig.DNSSearch) > 0 {
		dnsSearch = container.hostConfig.DNSSearch
	} else if len(daemon.configStore.DNSSearch) > 0 {
		dnsSearch = daemon.configStore.DNSSearch
	}

	for _, ds := range dnsSearch {
		sboxOptions = append(sboxOptions, libnetwork.OptionDNSSearch(ds))
	}

	if len(container.hostConfig.DNSOptions) > 0 {
		dnsOptions = container.hostConfig.DNSOptions
	} else if len(daemon.configStore.DNSOptions) > 0 {
		dnsOptions = daemon.configStore.DNSOptions
	}

	for _, ds := range dnsOptions {
		sboxOptions = append(sboxOptions, libnetwork.OptionDNSOptions(ds))
	}

	if container.NetworkSettings.SecondaryIPAddresses != nil {
		name := container.Config.Hostname
		if container.Config.Domainname != "" {
			name = name + "." + container.Config.Domainname
		}

		for _, a := range container.NetworkSettings.SecondaryIPAddresses {
			sboxOptions = append(sboxOptions, libnetwork.OptionExtraHost(name, a.Addr))
		}
	}

	for _, extraHost := range container.hostConfig.ExtraHosts {
		// allow IPv6 addresses in extra hosts; only split on first ":"
		parts := strings.SplitN(extraHost, ":", 2)
		sboxOptions = append(sboxOptions, libnetwork.OptionExtraHost(parts[0], parts[1]))
	}

	// Link feature is supported only for the default bridge network.
	// return if this call to build join options is not for default bridge network
	if n.Name() != "bridge" {
		return sboxOptions, nil
	}

	ep, _ := container.getEndpointInNetwork(n)
	if ep == nil {
		return sboxOptions, nil
	}

	var childEndpoints, parentEndpoints []string

	children, err := daemon.children(container.Name)
	if err != nil {
		return nil, err
	}

	for linkAlias, child := range children {
//.........这里部分代码省略.........

func TestResolvConf(t *testing.T) {
	if !netutils.IsRunningInContainer() {
		defer netutils.SetupTestNetNS(t)()
	}

	tmpResolvConf1 := []byte("search pommesfrites.fr\nnameserver 12.34.56.78\nnameserver 2001:4860:4860::8888\n")
	expectedResolvConf1 := []byte("search pommesfrites.fr\nnameserver 12.34.56.78\n")
	tmpResolvConf2 := []byte("search pommesfrites.fr\nnameserver 112.34.56.78\nnameserver 2001:4860:4860::8888\n")
	expectedResolvConf2 := []byte("search pommesfrites.fr\nnameserver 112.34.56.78\n")
	tmpResolvConf3 := []byte("search pommesfrites.fr\nnameserver 113.34.56.78\n")

	//take a copy of resolv.conf for restoring after test completes
	resolvConfSystem, err := ioutil.ReadFile("/etc/resolv.conf")
	if err != nil {
		t.Fatal(err)
	}
	//cleanup
	defer func() {
		if err := ioutil.WriteFile("/etc/resolv.conf", resolvConfSystem, 0644); err != nil {
			t.Fatal(err)
		}
	}()

	netOption := options.Generic{
		netlabel.GenericData: options.Generic{
			"BridgeName":            "testnetwork",
			"AllowNonDefaultBridge": true,
		},
	}
	n, err := createTestNetwork("bridge", "testnetwork", netOption)
	if err != nil {
		t.Fatal(err)
	}
	defer func() {
		if err := n.Delete(); err != nil {
			t.Fatal(err)
		}
	}()

	ep, err := n.CreateEndpoint("ep")
	if err != nil {
		t.Fatal(err)
	}
	defer func() {
		if err := ep.Delete(); err != nil {
			t.Fatal(err)
		}
	}()

	if err := ioutil.WriteFile("/etc/resolv.conf", tmpResolvConf1, 0644); err != nil {
		t.Fatal(err)
	}

	resolvConfPath := "/tmp/libnetwork_test/resolv.conf"
	defer os.Remove(resolvConfPath)

	sb1, err := controller.NewSandbox(containerID, libnetwork.OptionResolvConfPath(resolvConfPath))
	if err != nil {
		t.Fatal(err)
	}
	defer func() {
		if err := sb1.Delete(); err != nil {
			t.Fatal(err)
		}
	}()

	err = ep.Join(sb1)
	runtime.LockOSThread()
	if err != nil {
		t.Fatal(err)
	}

	finfo, err := os.Stat(resolvConfPath)
	if err != nil {
		t.Fatal(err)
	}

	fmode := (os.FileMode)(0644)
	if finfo.Mode() != fmode {
		t.Fatalf("Expected file mode %s, got %s", fmode.String(), finfo.Mode().String())
	}

	content, err := ioutil.ReadFile(resolvConfPath)
	if err != nil {
		t.Fatal(err)
	}

	if !bytes.Equal(content, expectedResolvConf1) {
		fmt.Printf("\n%v\n%v\n", expectedResolvConf1, content)
		t.Fatalf("Expected:\n%s\nGot:\n%s", string(expectedResolvConf1), string(content))
	}

	err = ep.Leave(sb1)
	runtime.LockOSThread()
	if err != nil {
		t.Fatal(err)
	}

	if err := ioutil.WriteFile("/etc/resolv.conf", tmpResolvConf2, 0644); err != nil {
		t.Fatal(err)
//.........这里部分代码省略.........

func TestResolvConfHost(t *testing.T) {
	if !netutils.IsRunningInContainer() {
		defer netutils.SetupTestNetNS(t)()
	}

	tmpResolvConf := []byte("search localhost.net\nnameserver 127.0.0.1\nnameserver 2001:4860:4860::8888\n")

	//take a copy of resolv.conf for restoring after test completes
	resolvConfSystem, err := ioutil.ReadFile("/etc/resolv.conf")
	if err != nil {
		t.Fatal(err)
	}
	//cleanup
	defer func() {
		if err := ioutil.WriteFile("/etc/resolv.conf", resolvConfSystem, 0644); err != nil {
			t.Fatal(err)
		}
	}()

	n, err := controller.NetworkByName("testhost")
	if err != nil {
		t.Fatal(err)
	}

	ep1, err := n.CreateEndpoint("ep1", nil)
	if err != nil {
		t.Fatal(err)
	}

	if err := ioutil.WriteFile("/etc/resolv.conf", tmpResolvConf, 0644); err != nil {
		t.Fatal(err)
	}

	resolvConfPath := "/tmp/libnetwork_test/resolv.conf"
	defer os.Remove(resolvConfPath)

	sb, err := controller.NewSandbox(containerID,
		libnetwork.OptionResolvConfPath(resolvConfPath),
		libnetwork.OptionOriginResolvConfPath("/etc/resolv.conf"))
	if err != nil {
		t.Fatal(err)
	}
	defer func() {
		if err := sb.Delete(); err != nil {
			t.Fatal(err)
		}
	}()

	err = ep1.Join(sb)
	if err != nil {
		t.Fatal(err)
	}
	defer func() {
		err = ep1.Leave(sb)
		if err != nil {
			t.Fatal(err)
		}
	}()

	finfo, err := os.Stat(resolvConfPath)
	if err != nil {
		t.Fatal(err)
	}

	fmode := (os.FileMode)(0644)
	if finfo.Mode() != fmode {
		t.Fatalf("Expected file mode %s, got %s", fmode.String(), finfo.Mode().String())
	}

	content, err := ioutil.ReadFile(resolvConfPath)
	if err != nil {
		t.Fatal(err)
	}

	if !bytes.Equal(content, tmpResolvConf) {
		t.Fatalf("Expected:\n%s\nGot:\n%s", string(tmpResolvConf), string(content))
	}
}

func TestEnableIPv6(t *testing.T) {
	if !netutils.IsRunningInContainer() {
		defer netutils.SetupTestNetNS(t)()
	}

	tmpResolvConf := []byte("search pommesfrites.fr\nnameserver 12.34.56.78\nnameserver 2001:4860:4860::8888\n")
	//take a copy of resolv.conf for restoring after test completes
	resolvConfSystem, err := ioutil.ReadFile("/etc/resolv.conf")
	if err != nil {
		t.Fatal(err)
	}
	//cleanup
	defer func() {
		if err := ioutil.WriteFile("/etc/resolv.conf", resolvConfSystem, 0644); err != nil {
			t.Fatal(err)
		}
	}()

	ip, cidrv6, err := net.ParseCIDR("fe80::1/64")
	if err != nil {
		t.Fatal(err)
	}
	cidrv6.IP = ip

	netOption := options.Generic{
		netlabel.EnableIPv6: true,
		netlabel.GenericData: options.Generic{
			"BridgeName":            "testnetwork",
			"FixedCIDRv6":           cidrv6,
			"AllowNonDefaultBridge": true,
		},
	}

	n, err := createTestNetwork("bridge", "testnetwork", netOption)
	if err != nil {
		t.Fatal(err)
	}
	defer func() {
		if err := n.Delete(); err != nil {
			t.Fatal(err)
		}
	}()

	ep1, err := n.CreateEndpoint("ep1")
	if err != nil {
		t.Fatal(err)
	}
	defer func() {
		if err := ep1.Delete(); err != nil {
			t.Fatal(err)
		}
	}()

	if err := ioutil.WriteFile("/etc/resolv.conf", tmpResolvConf, 0644); err != nil {
		t.Fatal(err)
	}

	resolvConfPath := "/tmp/libnetwork_test/resolv.conf"
	defer os.Remove(resolvConfPath)

	sb, err := controller.NewSandbox(containerID, libnetwork.OptionResolvConfPath(resolvConfPath))
	if err != nil {
		t.Fatal(err)
	}
	defer func() {
		if err := sb.Delete(); err != nil {
			t.Fatal(err)
		}
	}()

	err = ep1.Join(sb)
	if err != nil {
		t.Fatal(err)
	}
	defer func() {
		err = ep1.Leave(sb)
		runtime.LockOSThread()
		if err != nil {
			t.Fatal(err)
		}
	}()

	content, err := ioutil.ReadFile(resolvConfPath)
	if err != nil {
		t.Fatal(err)
	}

	if !bytes.Equal(content, tmpResolvConf) {
		t.Fatalf("Expected:\n%s\nGot:\n%s", string(tmpResolvConf), string(content))
	}

	if err != nil {
		t.Fatal(err)
	}
}

func (container *Container) buildSandboxOptions() ([]libnetwork.SandboxOption, error) {
	var (
		sboxOptions []libnetwork.SandboxOption
		err         error
		dns         []string
		dnsSearch   []string
	)

	sboxOptions = append(sboxOptions, libnetwork.OptionHostname(container.Config.Hostname),
		libnetwork.OptionDomainname(container.Config.Domainname))

	if container.hostConfig.NetworkMode.IsHost() {
		sboxOptions = append(sboxOptions, libnetwork.OptionUseDefaultSandbox())
		sboxOptions = append(sboxOptions, libnetwork.OptionOriginHostsPath("/etc/hosts"))
		sboxOptions = append(sboxOptions, libnetwork.OptionOriginResolvConfPath("/etc/resolv.conf"))
	}

	container.HostsPath, err = container.getRootResourcePath("hosts")
	if err != nil {
		return nil, err
	}
	sboxOptions = append(sboxOptions, libnetwork.OptionHostsPath(container.HostsPath))

	container.ResolvConfPath, err = container.getRootResourcePath("resolv.conf")
	if err != nil {
		return nil, err
	}
	sboxOptions = append(sboxOptions, libnetwork.OptionResolvConfPath(container.ResolvConfPath))

	if len(container.hostConfig.DNS) > 0 {
		dns = container.hostConfig.DNS
	} else if len(container.daemon.configStore.DNS) > 0 {
		dns = container.daemon.configStore.DNS
	}

	for _, d := range dns {
		sboxOptions = append(sboxOptions, libnetwork.OptionDNS(d))
	}

	if len(container.hostConfig.DNSSearch) > 0 {
		dnsSearch = container.hostConfig.DNSSearch
	} else if len(container.daemon.configStore.DNSSearch) > 0 {
		dnsSearch = container.daemon.configStore.DNSSearch
	}

	for _, ds := range dnsSearch {
		sboxOptions = append(sboxOptions, libnetwork.OptionDNSSearch(ds))
	}

	if container.NetworkSettings.SecondaryIPAddresses != nil {
		name := container.Config.Hostname
		if container.Config.Domainname != "" {
			name = name + "." + container.Config.Domainname
		}

		for _, a := range container.NetworkSettings.SecondaryIPAddresses {
			sboxOptions = append(sboxOptions, libnetwork.OptionExtraHost(name, a.Addr))
		}
	}

	var childEndpoints, parentEndpoints []string

	children, err := container.daemon.children(container.Name)
	if err != nil {
		return nil, err
	}

	for linkAlias, child := range children {
		_, alias := path.Split(linkAlias)
		// allow access to the linked container via the alias, real name, and container hostname
		aliasList := alias + " " + child.Config.Hostname
		// only add the name if alias isn't equal to the name
		if alias != child.Name[1:] {
			aliasList = aliasList + " " + child.Name[1:]
		}
		sboxOptions = append(sboxOptions, libnetwork.OptionExtraHost(aliasList, child.NetworkSettings.IPAddress))
		if child.NetworkSettings.EndpointID != "" {
			childEndpoints = append(childEndpoints, child.NetworkSettings.EndpointID)
		}
	}

	for _, extraHost := range container.hostConfig.ExtraHosts {
		// allow IPv6 addresses in extra hosts; only split on first ":"
		parts := strings.SplitN(extraHost, ":", 2)
		sboxOptions = append(sboxOptions, libnetwork.OptionExtraHost(parts[0], parts[1]))
	}

	refs := container.daemon.containerGraph().RefPaths(container.ID)
	for _, ref := range refs {
		if ref.ParentID == "0" {
			continue
		}

		c, err := container.daemon.Get(ref.ParentID)
		if err != nil {
			logrus.Error(err)
		}

		if c != nil && !container.daemon.configStore.DisableBridge && container.hostConfig.NetworkMode.IsPrivate() {
			logrus.Debugf("Update /etc/hosts of %s for alias %s with ip %s", c.ID, ref.Name, container.NetworkSettings.IPAddress)
//.........这里部分代码省略.........

func (daemon *Daemon) buildSandboxOptions(container *container.Container, n libnetwork.Network) ([]libnetwork.SandboxOption, error) {
	var (
		sboxOptions []libnetwork.SandboxOption
		err         error
		dns         []string
		dnsSearch   []string
		dnsOptions  []string
		bindings    = make(nat.PortMap)
		pbList      []types.PortBinding
		exposeList  []types.TransportPort
	)

	defaultNetName := runconfig.DefaultDaemonNetworkMode().NetworkName()
	sboxOptions = append(sboxOptions, libnetwork.OptionHostname(container.Config.Hostname),
		libnetwork.OptionDomainname(container.Config.Domainname))

	if container.HostConfig.NetworkMode.IsHost() {
		sboxOptions = append(sboxOptions, libnetwork.OptionUseDefaultSandbox())
		sboxOptions = append(sboxOptions, libnetwork.OptionOriginHostsPath("/etc/hosts"))
		sboxOptions = append(sboxOptions, libnetwork.OptionOriginResolvConfPath("/etc/resolv.conf"))
	} else if daemon.execDriver.SupportsHooks() {
		// OptionUseExternalKey is mandatory for userns support.
		// But optional for non-userns support
		sboxOptions = append(sboxOptions, libnetwork.OptionUseExternalKey())
	}

	container.HostsPath, err = container.GetRootResourcePath("hosts")
	if err != nil {
		return nil, err
	}
	sboxOptions = append(sboxOptions, libnetwork.OptionHostsPath(container.HostsPath))

	container.ResolvConfPath, err = container.GetRootResourcePath("resolv.conf")
	if err != nil {
		return nil, err
	}
	sboxOptions = append(sboxOptions, libnetwork.OptionResolvConfPath(container.ResolvConfPath))

	if len(container.HostConfig.DNS) > 0 {
		dns = container.HostConfig.DNS
	} else if len(daemon.configStore.DNS) > 0 {
		dns = daemon.configStore.DNS
	}

	for _, d := range dns {
		sboxOptions = append(sboxOptions, libnetwork.OptionDNS(d))
	}

	if len(container.HostConfig.DNSSearch) > 0 {
		dnsSearch = container.HostConfig.DNSSearch
	} else if len(daemon.configStore.DNSSearch) > 0 {
		dnsSearch = daemon.configStore.DNSSearch
	}

	for _, ds := range dnsSearch {
		sboxOptions = append(sboxOptions, libnetwork.OptionDNSSearch(ds))
	}

	if len(container.HostConfig.DNSOptions) > 0 {
		dnsOptions = container.HostConfig.DNSOptions
	} else if len(daemon.configStore.DNSOptions) > 0 {
		dnsOptions = daemon.configStore.DNSOptions
	}

	for _, ds := range dnsOptions {
		sboxOptions = append(sboxOptions, libnetwork.OptionDNSOptions(ds))
	}

	if container.NetworkSettings.SecondaryIPAddresses != nil {
		name := container.Config.Hostname
		if container.Config.Domainname != "" {
			name = name + "." + container.Config.Domainname
		}

		for _, a := range container.NetworkSettings.SecondaryIPAddresses {
			sboxOptions = append(sboxOptions, libnetwork.OptionExtraHost(name, a.Addr))
		}
	}

	for _, extraHost := range container.HostConfig.ExtraHosts {
		// allow IPv6 addresses in extra hosts; only split on first ":"
		parts := strings.SplitN(extraHost, ":", 2)
		sboxOptions = append(sboxOptions, libnetwork.OptionExtraHost(parts[0], parts[1]))
	}

	if container.HostConfig.PortBindings != nil {
		for p, b := range container.HostConfig.PortBindings {
			bindings[p] = []nat.PortBinding{}
			for _, bb := range b {
				bindings[p] = append(bindings[p], nat.PortBinding{
					HostIP:   bb.HostIP,
					HostPort: bb.HostPort,
				})
			}
		}
	}

	portSpecs := container.Config.ExposedPorts
	ports := make([]nat.Port, len(portSpecs))
	var i int
//.........这里部分代码省略.........

func TestEnableIPv6(t *testing.T) {
	if !testutils.IsRunningInContainer() {
		defer testutils.SetupTestOSContext(t)()
	}

	tmpResolvConf := []byte("search pommesfrites.fr\nnameserver 12.34.56.78\nnameserver 2001:4860:4860::8888\n")
	//take a copy of resolv.conf for restoring after test completes
	resolvConfSystem, err := ioutil.ReadFile("/etc/resolv.conf")
	if err != nil {
		t.Fatal(err)
	}
	//cleanup
	defer func() {
		if err := ioutil.WriteFile("/etc/resolv.conf", resolvConfSystem, 0644); err != nil {
			t.Fatal(err)
		}
	}()

	netOption := options.Generic{
		netlabel.EnableIPv6: true,
		netlabel.GenericData: options.Generic{
			"BridgeName": "testnetwork",
		},
	}
	ipamV6ConfList := []*libnetwork.IpamConf{&libnetwork.IpamConf{PreferredPool: "fe80::/64"}}

	n, err := createTestNetwork("bridge", "testnetwork", netOption, nil, ipamV6ConfList)
	if err != nil {
		t.Fatal(err)
	}
	defer func() {
		if err := n.Delete(); err != nil {
			t.Fatal(err)
		}
	}()

	ep1, err := n.CreateEndpoint("ep1")
	if err != nil {
		t.Fatal(err)
	}

	if err := ioutil.WriteFile("/etc/resolv.conf", tmpResolvConf, 0644); err != nil {
		t.Fatal(err)
	}

	resolvConfPath := "/tmp/libnetwork_test/resolv.conf"
	defer os.Remove(resolvConfPath)

	sb, err := controller.NewSandbox(containerID, libnetwork.OptionResolvConfPath(resolvConfPath))
	if err != nil {
		t.Fatal(err)
	}
	defer func() {
		if err := sb.Delete(); err != nil {
			t.Fatal(err)
		}
	}()

	err = ep1.Join(sb)
	if err != nil {
		t.Fatal(err)
	}

	content, err := ioutil.ReadFile(resolvConfPath)
	if err != nil {
		t.Fatal(err)
	}

	if !bytes.Equal(content, tmpResolvConf) {
		t.Fatalf("Expected:\n%s\nGot:\n%s", string(tmpResolvConf), string(content))
	}

	if err != nil {
		t.Fatal(err)
	}
}