// NewMethodNotSupported returns an error indicating the requested action is not supported on this kind.
func NewMethodNotSupported(qualifiedResource unversioned.GroupResource, action string) *StatusError {
return &StatusError{unversioned.Status{
Status: unversioned.StatusFailure,
Code: http.StatusMethodNotAllowed,
Reason: unversioned.StatusReasonMethodNotAllowed,
Details: &unversioned.StatusDetails{
Group: qualifiedResource.Group,
Kind: qualifiedResource.Resource,
},
Message: fmt.Sprintf("%s is not supported on resources of kind %q", action, qualifiedResource.String()),
}}
}
// NewNotFound returns a new error which indicates that the resource of the kind and the name was not found.
func NewNotFound(qualifiedResource unversioned.GroupResource, name string) *StatusError {
return &StatusError{unversioned.Status{
Status: unversioned.StatusFailure,
Code: http.StatusNotFound,
Reason: unversioned.StatusReasonNotFound,
Details: &unversioned.StatusDetails{
Group: qualifiedResource.Group,
Kind: qualifiedResource.Resource,
Name: name,
},
Message: fmt.Sprintf("%s %q not found", qualifiedResource.String(), name),
}}
}
// NewConflict returns an error indicating the item can't be updated as provided.
func NewConflict(qualifiedResource unversioned.GroupResource, name string, err error) *StatusError {
return &StatusError{unversioned.Status{
Status: unversioned.StatusFailure,
Code: http.StatusConflict,
Reason: unversioned.StatusReasonConflict,
Details: &unversioned.StatusDetails{
Group: qualifiedResource.Group,
Kind: qualifiedResource.Resource,
Name: name,
},
Message: fmt.Sprintf("Operation cannot be fulfilled on %s %q: %v", qualifiedResource.String(), name, err),
}}
}
// NewForbidden returns an error indicating the requested action was forbidden
func NewForbidden(qualifiedResource unversioned.GroupResource, name string, err error) *StatusError {
return &StatusError{unversioned.Status{
Status: unversioned.StatusFailure,
Code: http.StatusForbidden,
Reason: unversioned.StatusReasonForbidden,
Details: &unversioned.StatusDetails{
Group: qualifiedResource.Group,
Kind: qualifiedResource.Resource,
Name: name,
},
Message: fmt.Sprintf("%s %q is forbidden: %v", qualifiedResource.String(), name, err),
}}
}
// NewAlreadyExists returns an error indicating the item requested exists by that identifier.
func NewAlreadyExists(qualifiedResource unversioned.GroupResource, name string) *StatusError {
return &StatusError{unversioned.Status{
Status: unversioned.StatusFailure,
Code: http.StatusConflict,
Reason: unversioned.StatusReasonAlreadyExists,
Details: &unversioned.StatusDetails{
Group: qualifiedResource.Group,
Kind: qualifiedResource.Resource,
Name: name,
},
Message: fmt.Sprintf("%s %q already exists", qualifiedResource.String(), name),
}}
}
func (g *configRESTOptionsGetter) GetRESTOptions(resource unversioned.GroupResource) (genericrest.RESTOptions, error) {
g.restOptionsLock.Lock()
defer g.restOptionsLock.Unlock()
if resourceOptions, ok := g.restOptionsMap[resource]; ok {
return resourceOptions, nil
}
if g.etcdHelper == nil {
// TODO: choose destination etcd based on input resource
etcdClient, err := etcd.MakeNewEtcdClient(g.masterOptions.EtcdClientInfo)
if err != nil {
return genericrest.RESTOptions{}, err
}
// TODO: choose destination group/version based on input group/resource
// TODO: Tune the cache size
groupVersion := unversioned.GroupVersion{Group: "", Version: g.masterOptions.EtcdStorageConfig.OpenShiftStorageVersion}
g.etcdHelper = etcdstorage.NewEtcdStorage(etcdClient, kapi.Codecs.LegacyCodec(groupVersion), g.masterOptions.EtcdStorageConfig.OpenShiftStoragePrefix, false, genericapiserver.DefaultDeserializationCacheSize)
}
configuredCacheSize, specified := g.cacheSizes[resource]
if !specified || configuredCacheSize < 0 {
configuredCacheSize = g.defaultCacheSize
}
decorator := func(s storage.Interface, requestedSize int, objectType runtime.Object, resourcePrefix string, scopeStrategy rest.NamespaceScopedStrategy, newListFunc func() runtime.Object) storage.Interface {
capacity := requestedSize
if capacity == UseConfiguredCacheSize {
capacity = configuredCacheSize
}
if capacity == 0 || !g.cacheEnabled {
glog.V(5).Infof("using uncached watch storage for %s", resource.String())
return genericrest.UndecoratedStorage(s, capacity, objectType, resourcePrefix, scopeStrategy, newListFunc)
} else {
glog.V(5).Infof("using watch cache storage (capacity=%d) for %s", capacity, resource.String())
return registry.StorageWithCacher(s, capacity, objectType, resourcePrefix, scopeStrategy, newListFunc)
}
}
resourceOptions := genericrest.RESTOptions{
Storage: g.etcdHelper,
Decorator: decorator,
DeleteCollectionWorkers: 1,
}
g.restOptionsMap[resource] = resourceOptions
return resourceOptions, nil
}
func (g *configRESTOptionsGetter) GetRESTOptions(resource unversioned.GroupResource) (genericrest.RESTOptions, error) {
g.restOptionsLock.Lock()
defer g.restOptionsLock.Unlock()
if resourceOptions, ok := g.restOptionsMap[resource]; ok {
return resourceOptions, nil
}
config, err := g.storageFactory.NewConfig(resource)
if err != nil {
return genericrest.RESTOptions{}, err
}
if _, ok := g.quorumResources[resource]; ok {
config.Quorum = true
}
configuredCacheSize, specified := g.cacheSizes[resource]
if !specified || configuredCacheSize < 0 {
configuredCacheSize = g.defaultCacheSize
}
decorator := func(s *storagebackend.Config, requestedSize int, objectType runtime.Object, resourcePrefix string, scopeStrategy rest.NamespaceScopedStrategy, newListFn func() runtime.Object, triggerFn storage.TriggerPublisherFunc) (storage.Interface, factory.DestroyFunc) {
capacity := requestedSize
if capacity == UseConfiguredCacheSize {
capacity = configuredCacheSize
}
if capacity == 0 || !g.cacheEnabled {
glog.V(5).Infof("using uncached watch storage for %s", resource.String())
return genericrest.UndecoratedStorage(s, capacity, objectType, resourcePrefix, scopeStrategy, newListFn, triggerFn)
}
glog.V(5).Infof("using watch cache storage (capacity=%d) for %s %#v", capacity, resource.String(), s)
return registry.StorageWithCacher(s, capacity, objectType, resourcePrefix, scopeStrategy, newListFn, triggerFn)
}
resourceOptions := genericrest.RESTOptions{
StorageConfig: config,
Decorator: decorator,
DeleteCollectionWorkers: 1,
ResourcePrefix: g.storageFactory.ResourcePrefix(resource),
}
g.restOptionsMap[resource] = resourceOptions
return resourceOptions, nil
}
// TODO: Move this upstream
func printAutoscalingInfo(res unversioned.GroupResource, namespace, name string, kclient kclient.Interface, w *tabwriter.Writer) {
hpaList, err := kclient.Autoscaling().HorizontalPodAutoscalers(namespace).List(kapi.ListOptions{LabelSelector: labels.Everything()})
if err != nil {
return
}
scaledBy := []autoscaling.HorizontalPodAutoscaler{}
for _, hpa := range hpaList.Items {
if hpa.Spec.ScaleTargetRef.Name == name && hpa.Spec.ScaleTargetRef.Kind == res.String() {
scaledBy = append(scaledBy, hpa)
}
}
for _, hpa := range scaledBy {
cpuUtil := ""
if hpa.Spec.TargetCPUUtilizationPercentage != nil {
cpuUtil = fmt.Sprintf(", triggered at %d%% CPU usage", *hpa.Spec.TargetCPUUtilizationPercentage)
}
fmt.Fprintf(w, "Autoscaling:\tbetween %d and %d replicas%s\n", *hpa.Spec.MinReplicas, hpa.Spec.MaxReplicas, cpuUtil)
// TODO: Print a warning in case of multiple hpas.
// Related oc status PR: https://github.com/openshift/origin/pull/7799
break
}
}
// NewGenericServerResponse returns a new error for server responses that are not in a recognizable form.
func NewGenericServerResponse(code int, verb string, qualifiedResource unversioned.GroupResource, name, serverMessage string, retryAfterSeconds int, isUnexpectedResponse bool) *StatusError {
reason := unversioned.StatusReasonUnknown
message := fmt.Sprintf("the server responded with the status code %d but did not return more information", code)
switch code {
case http.StatusConflict:
if verb == "POST" {
reason = unversioned.StatusReasonAlreadyExists
} else {
reason = unversioned.StatusReasonConflict
}
message = "the server reported a conflict"
case http.StatusNotFound:
reason = unversioned.StatusReasonNotFound
message = "the server could not find the requested resource"
case http.StatusBadRequest:
reason = unversioned.StatusReasonBadRequest
message = "the server rejected our request for an unknown reason"
case http.StatusUnauthorized:
reason = unversioned.StatusReasonUnauthorized
message = "the server has asked for the client to provide credentials"
case http.StatusForbidden:
reason = unversioned.StatusReasonForbidden
message = "the server does not allow access to the requested resource"
case http.StatusMethodNotAllowed:
reason = unversioned.StatusReasonMethodNotAllowed
message = "the server does not allow this method on the requested resource"
case StatusUnprocessableEntity:
reason = unversioned.StatusReasonInvalid
message = "the server rejected our request due to an error in our request"
case StatusServerTimeout:
reason = unversioned.StatusReasonServerTimeout
message = "the server cannot complete the requested operation at this time, try again later"
case StatusTooManyRequests:
reason = unversioned.StatusReasonTimeout
message = "the server has received too many requests and has asked us to try again later"
default:
if code >= 500 {
reason = unversioned.StatusReasonInternalError
message = fmt.Sprintf("an error on the server (%q) has prevented the request from succeeding", serverMessage)
}
}
switch {
case !qualifiedResource.Empty() && len(name) > 0:
message = fmt.Sprintf("%s (%s %s %s)", message, strings.ToLower(verb), qualifiedResource.String(), name)
case !qualifiedResource.Empty():
message = fmt.Sprintf("%s (%s %s)", message, strings.ToLower(verb), qualifiedResource.String())
}
var causes []unversioned.StatusCause
if isUnexpectedResponse {
causes = []unversioned.StatusCause{
{
Type: unversioned.CauseTypeUnexpectedServerResponse,
Message: serverMessage,
},
}
} else {
causes = nil
}
return &StatusError{unversioned.Status{
Status: unversioned.StatusFailure,
Code: int32(code),
Reason: reason,
Details: &unversioned.StatusDetails{
Group: qualifiedResource.Group,
Kind: qualifiedResource.Resource,
Name: name,
Causes: causes,
RetryAfterSeconds: int32(retryAfterSeconds),
},
Message: message,
}}
}
// NewServerTimeout returns an error indicating the requested action could not be completed due to a
// transient error, and the client should try again.
func NewServerTimeout(qualifiedResource unversioned.GroupResource, operation string, retryAfterSeconds int) *StatusError {
return &StatusError{unversioned.Status{
Status: unversioned.StatusFailure,
Code: http.StatusInternalServerError,
Reason: unversioned.StatusReasonServerTimeout,
Details: &unversioned.StatusDetails{
Group: qualifiedResource.Group,
Kind: qualifiedResource.Resource,
Name: operation,
RetryAfterSeconds: int32(retryAfterSeconds),
},
Message: fmt.Sprintf("The %s operation against %s could not be completed at this time, please try again.", operation, qualifiedResource.String()),
}}
}