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strategy.go
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strategy.go
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package buildconfig
import (
"fmt"
kapi "k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/fields"
"k8s.io/kubernetes/pkg/labels"
"k8s.io/kubernetes/pkg/registry/generic"
"k8s.io/kubernetes/pkg/runtime"
"k8s.io/kubernetes/pkg/util/validation/field"
"github.com/openshift/origin/pkg/build/api"
"github.com/openshift/origin/pkg/build/api/validation"
)
// strategy implements behavior for BuildConfig objects
type strategy struct {
runtime.ObjectTyper
kapi.NameGenerator
}
// Strategy is the default logic that applies when creating and updating BuildConfig objects.
var Strategy = strategy{kapi.Scheme, kapi.SimpleNameGenerator}
func (strategy) NamespaceScoped() bool {
return true
}
// AllowCreateOnUpdate is false for BuildConfig objects.
func (strategy) AllowCreateOnUpdate() bool {
return false
}
func (strategy) AllowUnconditionalUpdate() bool {
return false
}
// PrepareForCreate clears fields that are not allowed to be set by end users on creation.
func (strategy) PrepareForCreate(ctx kapi.Context, obj runtime.Object) {
bc := obj.(*api.BuildConfig)
dropUnknownTriggers(bc)
}
// Canonicalize normalizes the object after validation.
func (strategy) Canonicalize(obj runtime.Object) {
}
// PrepareForUpdate clears fields that are not allowed to be set by end users on update.
func (strategy) PrepareForUpdate(ctx kapi.Context, obj, old runtime.Object) {
newBC := obj.(*api.BuildConfig)
oldBC := old.(*api.BuildConfig)
dropUnknownTriggers(newBC)
// Do not allow the build version to go backwards or we'll
// get conflicts with existing builds.
if newBC.Status.LastVersion < oldBC.Status.LastVersion {
newBC.Status.LastVersion = oldBC.Status.LastVersion
}
}
// Validate validates a new policy.
func (strategy) Validate(ctx kapi.Context, obj runtime.Object) field.ErrorList {
return validation.ValidateBuildConfig(obj.(*api.BuildConfig))
}
// ValidateUpdate is the default update validation for an end user.
func (strategy) ValidateUpdate(ctx kapi.Context, obj, old runtime.Object) field.ErrorList {
return validation.ValidateBuildConfigUpdate(obj.(*api.BuildConfig), old.(*api.BuildConfig))
}
// Matcher returns a generic matcher for a given label and field selector.
func Matcher(label labels.Selector, field fields.Selector) *generic.SelectionPredicate {
return &generic.SelectionPredicate{
Label: label,
Field: field,
GetAttrs: func(obj runtime.Object) (labels.Set, fields.Set, error) {
buildConfig, ok := obj.(*api.BuildConfig)
if !ok {
return nil, nil, fmt.Errorf("not a BuildConfig")
}
return labels.Set(buildConfig.ObjectMeta.Labels), api.BuildConfigToSelectableFields(buildConfig), nil
},
}
}
// CheckGracefulDelete allows a build config to be gracefully deleted.
func (strategy) CheckGracefulDelete(obj runtime.Object, options *kapi.DeleteOptions) bool {
return false
}
// dropUnknownTriggers drops any triggers that are of an unknown type
func dropUnknownTriggers(bc *api.BuildConfig) {
triggers := []api.BuildTriggerPolicy{}
for _, t := range bc.Spec.Triggers {
if api.KnownTriggerTypes.Has(string(t.Type)) {
triggers = append(triggers, t)
}
}
bc.Spec.Triggers = triggers
}