Fix the device spec file creation in rdma exclusive mode

pkg/infoprovider/rdmaInfoProvider.go

@@ -54,6 +54,7 @@ func (ip *rdmaInfoProvider) GetDeviceSpecs() []*pluginapi.DeviceSpec {
 	}
 
 	devsSpec := ip.rdmaSpec.GetRdmaDeviceSpec()
+	glog.Infof("GetDeviceSpecs(): GetRdmaDeviceSpec returned %v", devsSpec)
 	return devsSpec
 }
 

pkg/netdevice/netResourcePool.go

@@ -68,9 +68,13 @@ func (rp *netResourcePool) GetDeviceSpecs(deviceIDs []string) []*pluginapi.Devic
 
 // StoreDeviceInfoFile stores the Device Info files according to the
 // k8snetworkplumbingwg/device-info-spec
-func (rp *netResourcePool) StoreDeviceInfoFile(resourceNamePrefix string) error {
+// for the requested deviceIDs
+func (rp *netResourcePool) StoreDeviceInfoFile(resourceNamePrefix string, deviceIDs []string) error {
 	var devInfo nettypes.DeviceInfo
-	for id, dev := range rp.GetDevicePool() {
+	devicePool := rp.GetDevicePool()
+
+	for _, id := range deviceIDs {
+		dev := devicePool[id]
 		netDev, ok := dev.(types.PciNetDevice)
 		if !ok {
 			return fmt.Errorf("storeDeviceInfoFile: Only pciNetDevices are supported")

pkg/netdevice/netResourcePool_test.go

@@ -150,7 +150,7 @@ var _ = Describe("NetResourcePool", func() {
 						return nil
 					})
 				rp := netdevice.NewNetResourcePool(nadutils, rc, pcis)
-				err := rp.StoreDeviceInfoFile("fakeOrg.io")
+				err := rp.StoreDeviceInfoFile("fakeOrg.io", []string{"fake1", "fake2"})
 				nadutils.AssertExpectations(t)
 				Expect(err).ToNot(HaveOccurred())
 			})
@@ -217,7 +217,7 @@ var _ = Describe("NetResourcePool", func() {
 						return nil
 					})
 				rp := netdevice.NewNetResourcePool(nadutils, rc, pcis)
-				err := rp.StoreDeviceInfoFile("fakeOrg.io")
+				err := rp.StoreDeviceInfoFile("fakeOrg.io", []string{"fake1", "fake2"})
 				Expect(err).ToNot(HaveOccurred())
 				nadutils.AssertExpectations(t)
 			})

pkg/resources/pool_stub.go

@@ -167,7 +167,7 @@ func (rp *ResourcePoolImpl) GetDevicePool() map[string]types.HostDevice {
 
 // StoreDeviceInfoFile does nothing. DeviceType-specific ResourcePools might
 // store information according to the k8snetworkplumbingwg/device-info-spec
-func (rp *ResourcePoolImpl) StoreDeviceInfoFile(resourceNamePrefix string) error {
+func (rp *ResourcePoolImpl) StoreDeviceInfoFile(resourceNamePrefix string, deviceIDs []string) error {
 	return nil
 }
 

pkg/resources/server.go

@@ -145,6 +145,12 @@ func (rs *resourceServer) Allocate(ctx context.Context, rqt *pluginapi.AllocateR
 			containerResp.Mounts = rs.resourcePool.GetMounts(container.DevicesIDs)
 		}
 
+		err = rs.resourcePool.StoreDeviceInfoFile(rs.resourceNamePrefix, container.DevicesIDs)
+		if err != nil {
+			glog.Errorf("failed to store device info file for device IDs %v: %v", container.DevicesIDs, err)
+			return nil, err
+		}
+
 		containerResp.Envs = envs
 		resp.ContainerResponses = append(resp.ContainerResponses, containerResp)
 	}
@@ -247,10 +253,6 @@ func (rs *resourceServer) Start() error {
 	resourceName := rs.resourcePool.GetResourceName()
 	_ = rs.cleanUp() // try tp clean up and continue
 
-	if err := rs.resourcePool.StoreDeviceInfoFile(rs.resourceNamePrefix); err != nil {
-		glog.Errorf("%s: error creating DeviceInfo File: %s", rs.resourcePool.GetResourceName(), err.Error())
-	}
-
 	glog.Infof("starting %s device plugin endpoint at: %s\n", resourceName, rs.endPoint)
 	lis, err := net.Listen(unix, rs.sockPath)
 	if err != nil {

pkg/resources/server_test.go

@@ -61,7 +61,6 @@ var _ = Describe("Server", func() {
 			rp := mocks.ResourcePool{}
 			rp.On("Probe").Return(false)
 			rp.On("GetResourceName").Return("fakename")
-			rp.On("StoreDeviceInfoFile", "fakeprefix").Return(nil)
 			rp.On("CleanDeviceInfoFile", "fakeprefix").Return(nil)
 
 			// Use faked dir as socket dir
@@ -78,7 +77,6 @@ var _ = Describe("Server", func() {
 				if shouldEnablePluginWatch {
 					_ = rs.Start()
 					rp.AssertCalled(t, "CleanDeviceInfoFile", "fakeprefix")
-					rp.AssertCalled(t, "StoreDeviceInfoFile", "fakeprefix")
 				} else {
 					_ = os.MkdirAll(pluginapi.DevicePluginPath, 0755)
 					registrationServer.start()
@@ -153,7 +151,6 @@ var _ = Describe("Server", func() {
 					On("DiscoverDevices").Return(nil).
 					On("GetDevices").Return(map[string]*pluginapi.Device{}).
 					On("Probe").Return(true).
-					On("StoreDeviceInfoFile", "fake").Return(nil).
 					On("CleanDeviceInfoFile", "fake").Return(nil)
 
 				// Create ResourceServer with plugin watch mode disabled
@@ -195,7 +192,6 @@ var _ = Describe("Server", func() {
 					On("DiscoverDevices").Return(nil).
 					On("GetDevices").Return(map[string]*pluginapi.Device{}).
 					On("Probe").Return(true).
-					On("StoreDeviceInfoFile", "fake").Return(nil).
 					On("CleanDeviceInfoFile", "fake").Return(nil)
 				// Create ResourceServer with plugin watch mode enabled
 				rs := NewResourceServer("fake", "fake", true, false, &rp).(*resourceServer)
@@ -230,7 +226,6 @@ var _ = Describe("Server", func() {
 					On("DiscoverDevices").Return(nil).
 					On("GetDevices").Return(map[string]*pluginapi.Device{}).
 					On("Probe").Return(true).
-					On("StoreDeviceInfoFile", "fake").Return(nil).
 					On("CleanDeviceInfoFile", "fake").Return(nil)
 
 				// Create ResourceServer with plugin watch mode disabled
@@ -274,7 +269,9 @@ var _ = Describe("Server", func() {
 				On("GetEnvs", "fake.com", []string{"00:00.01"}).
 				Return(map[string]string{"PCIDEVICE_FAKE_COM_FAKE_INFO": "{\"00:00.01\":{\"netdevice\":{\"pci\":\"00:00.01\"}}}"}, nil).
 				On("GetMounts", []string{"00:00.01"}).
-				Return([]*pluginapi.Mount{{ContainerPath: "/dev/fake", HostPath: "/dev/fake", ReadOnly: false}})
+				Return([]*pluginapi.Mount{{ContainerPath: "/dev/fake", HostPath: "/dev/fake", ReadOnly: false}}).
+				On("StoreDeviceInfoFile", "fake.com", []string{"00:00.01"}).
+				Return(nil)
 
 			rs := NewResourceServer("fake.com", "fake", true, false, &rp).(*resourceServer)
 
@@ -318,7 +315,9 @@ var _ = Describe("Server", func() {
 				On("GetMounts", []string{"00:00.01"}).
 				Return([]*pluginapi.Mount{{ContainerPath: "/dev/fake", HostPath: "/dev/fake", ReadOnly: false}}).
 				On("GetCDIName").
-				Return("fake.com")
+				Return("fake.com").
+				On("StoreDeviceInfoFile", "fake.com", []string{"00:00.01"}).
+				Return(nil)
 
 			rs := NewResourceServer("fake.com", "fake", true, true, &rp).(*resourceServer)
 

pkg/types/types.go

@@ -194,7 +194,7 @@ type ResourcePool interface {
 	GetDeviceSpecs(deviceIDs []string) []*pluginapi.DeviceSpec
 	GetEnvs(prefix string, deviceIDs []string) (map[string]string, error)
 	GetMounts(deviceIDs []string) []*pluginapi.Mount
-	StoreDeviceInfoFile(resourceNamePrefix string) error
+	StoreDeviceInfoFile(resourceNamePrefix string, deviceIDs []string) error
 	CleanDeviceInfoFile(resourceNamePrefix string) error
 	GetCDIName() string
 }