830e97f800
* Convert to runtime.Object to smaller structs This adds conversion for all the objects we want to keep in the cache. It keeps the minimum for CoreDNS to function and throws away the rest. The conversion: api.Endpoints -> object.Endpoints api.Pod -> object.Pod api.Serivce -> object.Service We needed to copy some client-go stuff to insert a conversion function into NewIndexInformers. Some unrelated cleanups in the watch functionality as that needed to be touched because of the above translation of objects. Signed-off-by: Miek Gieben <miek@miek.nl> * Reduce test line-count Signed-off-by: Miek Gieben <miek@miek.nl> * ....and fix test Signed-off-by: Miek Gieben <miek@miek.nl> * Drop use of append Signed-off-by: Miek Gieben <miek@miek.nl> * cosmetic changes Signed-off-by: Miek Gieben <miek@miek.nl> * that was a typo Signed-off-by: Miek Gieben <miek@miek.nl> * re-introduce append here We can't really use len() here because we don't know the number before hand. Signed-off-by: Miek Gieben <miek@miek.nl> * comment in better place Signed-off-by: Miek Gieben <miek@miek.nl> * Make the timestamp a bool; thats where it is used for Signed-off-by: Miek Gieben <miek@miek.nl> * Set incoming object to nil Explicataliy discard the converted object; we did a deep copy it's not needed anymore. Signed-off-by: Miek Gieben <miek@miek.nl> * Per Chris's comment Signed-off-by: Miek Gieben <miek@miek.nl>
89 lines
2.3 KiB
Go
89 lines
2.3 KiB
Go
package object
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import (
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api "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/runtime"
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)
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// Service is a stripped down api.Service with only the items we need for CoreDNS.
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type Service struct {
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Version string
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Name string
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Namespace string
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Index string
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ClusterIP string
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Type api.ServiceType
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ExternalName string
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Ports []api.ServicePort
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*Empty
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}
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// ServiceKey return a string using for the index.
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func ServiceKey(name, namespace string) string { return name + "." + namespace }
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// ToService converts an api.Service to a *Service.
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func ToService(obj interface{}) interface{} {
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svc, ok := obj.(*api.Service)
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if !ok {
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return nil
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}
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s := &Service{
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Version: svc.GetResourceVersion(),
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Name: svc.GetName(),
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Namespace: svc.GetNamespace(),
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Index: ServiceKey(svc.GetName(), svc.GetNamespace()),
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ClusterIP: svc.Spec.ClusterIP,
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Type: svc.Spec.Type,
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ExternalName: svc.Spec.ExternalName,
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}
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if len(svc.Spec.Ports) == 0 {
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// Add sentinal if there are no ports.
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s.Ports = []api.ServicePort{{Port: -1}}
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} else {
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s.Ports = make([]api.ServicePort, len(svc.Spec.Ports))
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copy(s.Ports, svc.Spec.Ports)
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}
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*svc = api.Service{}
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return s
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}
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var _ runtime.Object = &Service{}
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// DeepCopyObject implements the ObjectKind interface.
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func (s *Service) DeepCopyObject() runtime.Object {
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s1 := &Service{
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Version: s.Version,
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Name: s.Name,
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Namespace: s.Namespace,
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Index: s.Index,
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ClusterIP: s.ClusterIP,
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Type: s.Type,
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ExternalName: s.ExternalName,
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Ports: make([]api.ServicePort, len(s.Ports)),
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}
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copy(s1.Ports, s.Ports)
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return s1
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}
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// GetNamespace implements the metav1.Object interface.
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func (s *Service) GetNamespace() string { return s.Namespace }
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// SetNamespace implements the metav1.Object interface.
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func (s *Service) SetNamespace(namespace string) {}
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// GetName implements the metav1.Object interface.
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func (s *Service) GetName() string { return s.Name }
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// SetName implements the metav1.Object interface.
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func (s *Service) SetName(name string) {}
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// GetResourceVersion implements the metav1.Object interface.
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func (s *Service) GetResourceVersion() string { return s.Version }
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// SetResourceVersion implements the metav1.Object interface.
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func (s *Service) SetResourceVersion(version string) {}
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