293 lines
7.2 KiB
Go
293 lines
7.2 KiB
Go
package network
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import (
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"encoding/json"
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"fmt"
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"net/http"
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"golang.org/x/net/context"
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"github.com/docker/docker/api/server/httputils"
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"github.com/docker/docker/errors"
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"github.com/docker/engine-api/types"
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"github.com/docker/engine-api/types/filters"
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"github.com/docker/engine-api/types/network"
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"github.com/docker/libnetwork"
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)
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func (n *networkRouter) getNetworksList(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
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if err := httputils.ParseForm(r); err != nil {
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return err
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}
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filter := r.Form.Get("filters")
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netFilters, err := filters.FromParam(filter)
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if err != nil {
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return err
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}
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list := []types.NetworkResource{}
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if nr, err := n.clusterProvider.GetNetworks(); err == nil {
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for _, nw := range nr {
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list = append(list, nw)
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}
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}
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// Combine the network list returned by Docker daemon if it is not already
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// returned by the cluster manager
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SKIP:
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for _, nw := range n.backend.GetNetworks() {
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for _, nl := range list {
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if nl.ID == nw.ID() {
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continue SKIP
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}
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}
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list = append(list, *n.buildNetworkResource(nw))
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}
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list, err = filterNetworks(list, netFilters)
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if err != nil {
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return err
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}
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return httputils.WriteJSON(w, http.StatusOK, list)
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}
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func (n *networkRouter) getNetwork(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
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if err := httputils.ParseForm(r); err != nil {
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return err
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}
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nw, err := n.backend.FindNetwork(vars["id"])
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if err != nil {
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if nr, err := n.clusterProvider.GetNetwork(vars["id"]); err == nil {
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return httputils.WriteJSON(w, http.StatusOK, nr)
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}
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return err
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}
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return httputils.WriteJSON(w, http.StatusOK, n.buildNetworkResource(nw))
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}
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func (n *networkRouter) postNetworkCreate(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
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var create types.NetworkCreateRequest
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if err := httputils.ParseForm(r); err != nil {
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return err
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}
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if err := httputils.CheckForJSON(r); err != nil {
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return err
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}
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if err := json.NewDecoder(r.Body).Decode(&create); err != nil {
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return err
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}
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if _, err := n.clusterProvider.GetNetwork(create.Name); err == nil {
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return libnetwork.NetworkNameError(create.Name)
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}
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nw, err := n.backend.CreateNetwork(create)
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if err != nil {
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if _, ok := err.(libnetwork.ManagerRedirectError); !ok {
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return err
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}
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id, err := n.clusterProvider.CreateNetwork(create)
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if err != nil {
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return err
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}
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nw = &types.NetworkCreateResponse{ID: id}
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}
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return httputils.WriteJSON(w, http.StatusCreated, nw)
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}
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func (n *networkRouter) postNetworkConnect(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
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var connect types.NetworkConnect
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if err := httputils.ParseForm(r); err != nil {
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return err
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}
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if err := httputils.CheckForJSON(r); err != nil {
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return err
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}
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if err := json.NewDecoder(r.Body).Decode(&connect); err != nil {
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return err
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}
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nw, err := n.backend.FindNetwork(vars["id"])
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if err != nil {
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return err
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}
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if nw.Info().Dynamic() {
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err := fmt.Errorf("operation not supported for swarm scoped networks")
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return errors.NewRequestForbiddenError(err)
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}
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return n.backend.ConnectContainerToNetwork(connect.Container, nw.Name(), connect.EndpointConfig)
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}
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func (n *networkRouter) postNetworkDisconnect(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
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var disconnect types.NetworkDisconnect
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if err := httputils.ParseForm(r); err != nil {
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return err
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}
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if err := httputils.CheckForJSON(r); err != nil {
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return err
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}
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if err := json.NewDecoder(r.Body).Decode(&disconnect); err != nil {
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return err
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}
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nw, _ := n.backend.FindNetwork(vars["id"])
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if nw != nil && nw.Info().Dynamic() {
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err := fmt.Errorf("operation not supported for swarm scoped networks")
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return errors.NewRequestForbiddenError(err)
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}
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return n.backend.DisconnectContainerFromNetwork(disconnect.Container, vars["id"], disconnect.Force)
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}
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func (n *networkRouter) deleteNetwork(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
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if err := httputils.ParseForm(r); err != nil {
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return err
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}
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if _, err := n.clusterProvider.GetNetwork(vars["id"]); err == nil {
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return n.clusterProvider.RemoveNetwork(vars["id"])
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}
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if err := n.backend.DeleteNetwork(vars["id"]); err != nil {
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return err
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}
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w.WriteHeader(http.StatusNoContent)
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return nil
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}
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func (n *networkRouter) buildNetworkResource(nw libnetwork.Network) *types.NetworkResource {
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r := &types.NetworkResource{}
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if nw == nil {
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return r
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}
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info := nw.Info()
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r.Name = nw.Name()
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r.ID = nw.ID()
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r.Scope = info.Scope()
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if n.clusterProvider.IsManager() {
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if _, err := n.clusterProvider.GetNetwork(nw.Name()); err == nil {
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r.Scope = "swarm"
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}
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} else if info.Dynamic() {
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r.Scope = "swarm"
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}
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r.Driver = nw.Type()
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r.EnableIPv6 = info.IPv6Enabled()
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r.Internal = info.Internal()
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r.Options = info.DriverOptions()
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r.Containers = make(map[string]types.EndpointResource)
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buildIpamResources(r, info)
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r.Internal = info.Internal()
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r.Labels = info.Labels()
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epl := nw.Endpoints()
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for _, e := range epl {
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ei := e.Info()
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if ei == nil {
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continue
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}
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sb := ei.Sandbox()
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tmpID := e.ID()
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key := "ep-" + tmpID
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if sb != nil {
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key = sb.ContainerID()
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}
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r.Containers[key] = buildEndpointResource(tmpID, e.Name(), ei)
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}
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return r
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}
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func buildIpamResources(r *types.NetworkResource, nwInfo libnetwork.NetworkInfo) {
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id, opts, ipv4conf, ipv6conf := nwInfo.IpamConfig()
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ipv4Info, ipv6Info := nwInfo.IpamInfo()
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r.IPAM.Driver = id
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r.IPAM.Options = opts
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r.IPAM.Config = []network.IPAMConfig{}
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for _, ip4 := range ipv4conf {
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if ip4.PreferredPool == "" {
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continue
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}
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iData := network.IPAMConfig{}
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iData.Subnet = ip4.PreferredPool
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iData.IPRange = ip4.SubPool
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iData.Gateway = ip4.Gateway
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iData.AuxAddress = ip4.AuxAddresses
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r.IPAM.Config = append(r.IPAM.Config, iData)
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}
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if len(r.IPAM.Config) == 0 {
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for _, ip4Info := range ipv4Info {
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iData := network.IPAMConfig{}
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iData.Subnet = ip4Info.IPAMData.Pool.String()
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iData.Gateway = ip4Info.IPAMData.Gateway.IP.String()
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r.IPAM.Config = append(r.IPAM.Config, iData)
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}
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}
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hasIpv6Conf := false
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for _, ip6 := range ipv6conf {
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if ip6.PreferredPool == "" {
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continue
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}
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hasIpv6Conf = true
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iData := network.IPAMConfig{}
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iData.Subnet = ip6.PreferredPool
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iData.IPRange = ip6.SubPool
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iData.Gateway = ip6.Gateway
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iData.AuxAddress = ip6.AuxAddresses
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r.IPAM.Config = append(r.IPAM.Config, iData)
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}
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if !hasIpv6Conf {
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for _, ip6Info := range ipv6Info {
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iData := network.IPAMConfig{}
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iData.Subnet = ip6Info.IPAMData.Pool.String()
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iData.Gateway = ip6Info.IPAMData.Gateway.String()
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r.IPAM.Config = append(r.IPAM.Config, iData)
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}
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}
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}
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func buildEndpointResource(id string, name string, info libnetwork.EndpointInfo) types.EndpointResource {
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er := types.EndpointResource{}
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er.EndpointID = id
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er.Name = name
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ei := info
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if ei == nil {
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return er
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}
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if iface := ei.Iface(); iface != nil {
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if mac := iface.MacAddress(); mac != nil {
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er.MacAddress = mac.String()
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}
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if ip := iface.Address(); ip != nil && len(ip.IP) > 0 {
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er.IPv4Address = ip.String()
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}
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if ipv6 := iface.AddressIPv6(); ipv6 != nil && len(ipv6.IP) > 0 {
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er.IPv6Address = ipv6.String()
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}
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}
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return er
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}
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