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Better error messages and logging while registering device plugins.

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This commit is contained in:
Rohit Agarwal
2017-10-26 15:17:38 -07:00
parent 7914aed80a
commit 092429be1c
2 changed files with 10 additions and 7 deletions
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13
pkg/kubelet/cm/deviceplugin/manager.go
View File

@@ -169,15 +169,18 @@ func (m *ManagerImpl) Allocate(resourceName string, devs []string) (*pluginapi.A
} }
// Register registers a device plugin. // Register registers a device plugin.
func (m *ManagerImpl) Register(ctx context.Context, func (m *ManagerImpl) Register(ctx context.Context, r *pluginapi.RegisterRequest) (*pluginapi.Empty, error) {
r *pluginapi.RegisterRequest) (*pluginapi.Empty, error) { glog.Infof("Got registration request from device plugin with resource name %q", r.ResourceName)
glog.V(2).Infof("Got request for Device Plugin %s", r.ResourceName)
if r.Version != pluginapi.Version { if r.Version != pluginapi.Version {
return &pluginapi.Empty{}, fmt.Errorf(errUnsuportedVersion) errorString := fmt.Sprintf(errUnsuportedVersion, r.Version, pluginapi.Version)
glog.Infof("Bad registration request from device plugin with resource name %q: %v", r.ResourceName, errorString)
return &pluginapi.Empty{}, fmt.Errorf(errorString)
} }
if !v1helper.IsExtendedResourceName(v1.ResourceName(r.ResourceName)) { if !v1helper.IsExtendedResourceName(v1.ResourceName(r.ResourceName)) {
return &pluginapi.Empty{}, fmt.Errorf(errInvalidResourceName, r.ResourceName) errorString := fmt.Sprintf(errInvalidResourceName, r.ResourceName)
glog.Infof("Bad registration request from device plugin: %v", errorString)
return &pluginapi.Empty{}, fmt.Errorf(errorString)
} }
// TODO: for now, always accepts newest device plugin. Later may consider to // TODO: for now, always accepts newest device plugin. Later may consider to

4
pkg/kubelet/cm/deviceplugin/types.go
View File

@@ -64,13 +64,13 @@ const (
errFailedToDialDevicePlugin = "failed to dial device plugin:" errFailedToDialDevicePlugin = "failed to dial device plugin:"
// errUnsuportedVersion is the error raised when the device plugin uses an API version not // errUnsuportedVersion is the error raised when the device plugin uses an API version not
// supported by the Kubelet registry // supported by the Kubelet registry
errUnsuportedVersion = "unsupported API version by the Kubelet registry" errUnsuportedVersion = "requested API version %q is not supported by kubelet. Supported version is %q"
// errDevicePluginAlreadyExists is the error raised when a device plugin with the // errDevicePluginAlreadyExists is the error raised when a device plugin with the
// same Resource Name tries to register itself // same Resource Name tries to register itself
errDevicePluginAlreadyExists = "another device plugin already registered this Resource Name" errDevicePluginAlreadyExists = "another device plugin already registered this Resource Name"
// errInvalidResourceName is the error raised when a device plugin is registering // errInvalidResourceName is the error raised when a device plugin is registering
// itself with an invalid ResourceName // itself with an invalid ResourceName
errInvalidResourceName = "the ResourceName %s is invalid" errInvalidResourceName = "the ResourceName %q is invalid"
// errEmptyResourceName is the error raised when the resource name field is empty // errEmptyResourceName is the error raised when the resource name field is empty
errEmptyResourceName = "invalid Empty ResourceName" errEmptyResourceName = "invalid Empty ResourceName"