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strategy.go
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strategy.go
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package egressnetworkpolicy
import (
"fmt"
"k8s.io/apimachinery/pkg/fields"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/util/validation/field"
apirequest "k8s.io/apiserver/pkg/endpoints/request"
"k8s.io/apiserver/pkg/registry/rest"
"k8s.io/apiserver/pkg/storage"
kapi "k8s.io/kubernetes/pkg/api"
sdnapi "github.com/openshift/origin/pkg/sdn/apis/network"
"github.com/openshift/origin/pkg/sdn/apis/network/validation"
)
// enpStrategy implements behavior for EgressNetworkPolicies
type enpStrategy struct {
runtime.ObjectTyper
}
// Strategy is the default logic that applies when creating and updating EgressNetworkPolicy
// objects via the REST API.
var Strategy = enpStrategy{kapi.Scheme}
func (enpStrategy) DefaultGarbageCollectionPolicy() rest.GarbageCollectionPolicy {
return rest.Unsupported
}
func (enpStrategy) PrepareForUpdate(ctx apirequest.Context, obj, old runtime.Object) {}
// NamespaceScoped is true for egress network policy
func (enpStrategy) NamespaceScoped() bool {
return true
}
func (enpStrategy) GenerateName(base string) string {
return base
}
func (enpStrategy) PrepareForCreate(ctx apirequest.Context, obj runtime.Object) {
}
// Canonicalize normalizes the object after validation.
func (enpStrategy) Canonicalize(obj runtime.Object) {
}
// Validate validates a new egress network policy
func (enpStrategy) Validate(ctx apirequest.Context, obj runtime.Object) field.ErrorList {
return validation.ValidateEgressNetworkPolicy(obj.(*sdnapi.EgressNetworkPolicy))
}
// AllowCreateOnUpdate is false for egress network policies
func (enpStrategy) AllowCreateOnUpdate() bool {
return false
}
func (enpStrategy) AllowUnconditionalUpdate() bool {
return false
}
// ValidateUpdate is the default update validation for a EgressNetworkPolicy
func (enpStrategy) ValidateUpdate(ctx apirequest.Context, obj, old runtime.Object) field.ErrorList {
return validation.ValidateEgressNetworkPolicyUpdate(obj.(*sdnapi.EgressNetworkPolicy), old.(*sdnapi.EgressNetworkPolicy))
}
// GetAttrs returns labels and fields of a given object for filtering purposes
func GetAttrs(o runtime.Object) (labels.Set, fields.Set, error) {
obj, ok := o.(*sdnapi.EgressNetworkPolicy)
if !ok {
return nil, nil, fmt.Errorf("not an EgressNetworkPolicy")
}
return labels.Set(obj.Labels), SelectableFields(obj), nil
}
// Matcher returns a generic matcher for a given label and field selector.
func Matcher(label labels.Selector, field fields.Selector) storage.SelectionPredicate {
return storage.SelectionPredicate{
Label: label,
Field: field,
GetAttrs: GetAttrs,
}
}
// SelectableFields returns a field set that can be used for filter selection
func SelectableFields(obj *sdnapi.EgressNetworkPolicy) fields.Set {
return sdnapi.EgressNetworkPolicyToSelectableFields(obj)
}