APIv2 compatibility network connect|disconnect

Add endpoints for the compat layer for network connect and disconnect. As of now, these two endpoints do nothing to change the network state of a container.  They do some basic data verification and return the proper 200 response.  This at least allows for scripts to work on the compatibility layer instead of getting 404s.

Signed-off-by: baude <bbaude@redhat.com>

4 files changed, 156 insertions, 17 deletions

diff --git a/pkg/api/handlers/compat/containers.go b/pkg/api/handlers/compat/containers.go
index cae8f88fd..00be8e845 100644
--- a/pkg/api/handlers/compat/containers.go
+++ b/pkg/api/handlers/compat/containers.go
@@ -410,25 +410,14 @@ func LibpodToContainerJSON(l *libpod.Container, sz bool) (*types.ContainerJSON,
 		return nil, err
 	}
 
-	networkSettingsDefault := types.DefaultNetworkSettings{
-		EndpointID:          "",
-		Gateway:             "",
-		GlobalIPv6Address:   "",
-		GlobalIPv6PrefixLen: 0,
-		IPAddress:           "",
-		IPPrefixLen:         0,
-		IPv6Gateway:         "",
-		MacAddress:          l.Config().StaticMAC.String(),
-	}
-
-	networkSettingsBase := types.NetworkSettingsBase{
-		Ports: ports,
+	n, err := json.Marshal(inspect.NetworkSettings)
+	if err != nil {
+		return nil, err
 	}
 
-	networkSettings := types.NetworkSettings{
-		NetworkSettingsBase:    networkSettingsBase,
-		DefaultNetworkSettings: networkSettingsDefault,
-		Networks:               nil,
+	networkSettings := types.NetworkSettings{}
+	if err := json.Unmarshal(n, &networkSettings); err != nil {
+		return nil, err
 	}
 
 	c := types.ContainerJSON{
diff --git a/pkg/api/handlers/compat/networks.go b/pkg/api/handlers/compat/networks.go
index a46784a6c..41eefd53b 100644
--- a/pkg/api/handlers/compat/networks.go
+++ b/pkg/api/handlers/compat/networks.go
@@ -20,6 +20,7 @@ import (
 	dockerNetwork "github.com/docker/docker/api/types/network"
 	"github.com/gorilla/schema"
 	"github.com/pkg/errors"
+	"github.com/sirupsen/logrus"
 )
 
 func InspectNetwork(w http.ResponseWriter, r *http.Request) {
@@ -312,3 +313,81 @@ func RemoveNetwork(w http.ResponseWriter, r *http.Request) {
 	}
 	utils.WriteResponse(w, http.StatusNoContent, "")
 }
+
+// Connect adds a container to a network
+// TODO: For now this func is a no-op that checks the container name, network name, and
+// responds with a 200.  This allows the call to remain intact.  We need to decide how
+// we make this work with CNI networking and setup/teardown.
+func Connect(w http.ResponseWriter, r *http.Request) {
+	runtime := r.Context().Value("runtime").(*libpod.Runtime)
+
+	var netConnect types.NetworkConnect
+	if err := json.NewDecoder(r.Body).Decode(&netConnect); err != nil {
+		utils.Error(w, "Something went wrong.", http.StatusInternalServerError, errors.Wrap(err, "Decode()"))
+		return
+	}
+	config, err := runtime.GetConfig()
+	if err != nil {
+		utils.InternalServerError(w, err)
+		return
+	}
+	name := utils.GetName(r)
+	exists, err := network.Exists(config, name)
+	if err != nil {
+		utils.InternalServerError(w, err)
+		return
+	}
+	if !exists {
+		utils.Error(w, "network not found", http.StatusNotFound, define.ErrNoSuchNetwork)
+		return
+	}
+	if _, err = runtime.LookupContainer(netConnect.Container); err != nil {
+		if errors.Cause(err) == define.ErrNoSuchCtr {
+			utils.ContainerNotFound(w, netConnect.Container, err)
+			return
+		}
+		utils.Error(w, "unable to lookup container", http.StatusInternalServerError, err)
+		return
+	}
+	logrus.Warnf("network connect endpoint is not fully implemented - tried to connect container %s to network %s", netConnect.Container, name)
+	utils.WriteResponse(w, http.StatusOK, "OK")
+}
+
+// Disconnect removes a container from a network
+// TODO: For now this func is a no-op that checks the container name, network name, and
+// responds with a 200.  This allows the call to remain intact.  We need to decide how
+// we make this work with CNI networking and setup/teardown.
+func Disconnect(w http.ResponseWriter, r *http.Request) {
+	runtime := r.Context().Value("runtime").(*libpod.Runtime)
+
+	var netDisconnect types.NetworkDisconnect
+	if err := json.NewDecoder(r.Body).Decode(&netDisconnect); err != nil {
+		utils.Error(w, "Something went wrong.", http.StatusInternalServerError, errors.Wrap(err, "Decode()"))
+		return
+	}
+	config, err := runtime.GetConfig()
+	if err != nil {
+		utils.InternalServerError(w, err)
+		return
+	}
+	name := utils.GetName(r)
+	exists, err := network.Exists(config, name)
+	if err != nil {
+		utils.InternalServerError(w, err)
+		return
+	}
+	if !exists {
+		utils.Error(w, "network not found", http.StatusNotFound, define.ErrNoSuchNetwork)
+		return
+	}
+	if _, err = runtime.LookupContainer(netDisconnect.Container); err != nil {
+		if errors.Cause(err) == define.ErrNoSuchCtr {
+			utils.ContainerNotFound(w, netDisconnect.Container, err)
+			return
+		}
+		utils.Error(w, "unable to lookup container", http.StatusInternalServerError, err)
+		return
+	}
+	logrus.Warnf("network disconnect endpoint is not fully implemented - tried to connect container %s to network %s", netDisconnect.Container, name)
+	utils.WriteResponse(w, http.StatusOK, "OK")
+}
diff --git a/pkg/api/handlers/compat/swagger.go b/pkg/api/handlers/compat/swagger.go
index 371d02388..0a514822b 100644
--- a/pkg/api/handlers/compat/swagger.go
+++ b/pkg/api/handlers/compat/swagger.go
@@ -63,3 +63,17 @@ type swagCompatNetworkCreateResponse struct {
 	// in:body
 	Body struct{ types.NetworkCreate }
 }
+
+// Network disconnect
+// swagger:model NetworkConnectRequest
+type swagCompatNetworkConnectRequest struct {
+	// in:body
+	Body struct{ types.NetworkConnect }
+}
+
+// Network disconnect
+// swagger:model NetworkDisconnectRequest
+type swagCompatNetworkDisconnectRequest struct {
+	// in:body
+	Body struct{ types.NetworkDisconnect }
+}
diff --git a/pkg/api/server/register_networks.go b/pkg/api/server/register_networks.go
index 61916eedf..6222006e5 100644
--- a/pkg/api/server/register_networks.go
+++ b/pkg/api/server/register_networks.go
@@ -98,6 +98,63 @@ func (s *APIServer) registerNetworkHandlers(r *mux.Router) error {
 	//     $ref: "#/responses/InternalError"
 	r.HandleFunc(VersionedPath("/networks/create"), s.APIHandler(compat.CreateNetwork)).Methods(http.MethodPost)
 	r.HandleFunc("/networks/create", s.APIHandler(compat.CreateNetwork)).Methods(http.MethodPost)
+	// swagger:operation POST /networks/{name}/connect compat compatConnectNetwork
+	// ---
+	// tags:
+	//  - networks (compat)
+	// summary: Connect container to network
+	// description: Connect a container to a network.  This endpoint is current a no-op
+	// produces:
+	// - application/json
+	// parameters:
+	//  - in: path
+	//    name: name
+	//    type: string
+	//    required: true
+	//    description: the name of the network
+	//  - in: body
+	//    name: create
+	//    description: attributes for connecting a container to a network
+	//    schema:
+	//      $ref: "#/definitions/NetworkConnectRequest"
+	// responses:
+	//   200:
+	//     description: OK
+	//   400:
+	//     $ref: "#/responses/BadParamError"
+	//   500:
+	//     $ref: "#/responses/InternalError"
+	r.HandleFunc(VersionedPath("/networks/{name}/connect"), s.APIHandler(compat.Connect)).Methods(http.MethodPost)
+	r.HandleFunc("/networks/{name}/connect", s.APIHandler(compat.Connect)).Methods(http.MethodPost)
+	// swagger:operation POST /networks/{name}/disconnect compat compatDisconnectNetwork
+	// ---
+	// tags:
+	//  - networks (compat)
+	// summary: Disconnect container from network
+	// description: Disconnect a container from a network.  This endpoint is current a no-op
+	// produces:
+	// - application/json
+	// parameters:
+	//  - in: path
+	//    name: name
+	//    type: string
+	//    required: true
+	//    description: the name of the network
+	//  - in: body
+	//    name: create
+	//    description: attributes for disconnecting a container from a network
+	//    schema:
+	//      $ref: "#/definitions/NetworkDisconnectRequest"
+	// responses:
+	//   200:
+	//     description: OK
+	//   400:
+	//     $ref: "#/responses/BadParamError"
+	//   500:
+	//     $ref: "#/responses/InternalError"
+	r.HandleFunc(VersionedPath("/networks/{name}/disconnect"), s.APIHandler(compat.Disconnect)).Methods(http.MethodPost)
+	r.HandleFunc("/networks/{name}/disconnect", s.APIHandler(compat.Disconnect)).Methods(http.MethodPost)
+
 	// swagger:operation DELETE /libpod/networks/{name} libpod libpodRemoveNetwork
 	// ---
 	// tags: