// GenerateParameterValues generates Value for each Parameter of the given
// Template that has Generate field specified where Value is not already
// supplied.
//
// Examples:
//
// from | value
// -----------------------------
// "test[0-9]{1}x" | "test7x"
// "[0-1]{8}" | "01001100"
// "0x[A-F0-9]{4}" | "0xB3AF"
// "[a-zA-Z0-9]{8}" | "hW4yQU5i"
// If an error occurs, the parameter that caused the error is returned along with the error message.
func (p *Processor) GenerateParameterValues(t *api.Template) *field.Error {
for i := range t.Parameters {
param := &t.Parameters[i]
if len(param.Value) > 0 {
continue
}
templatePath := field.NewPath("template").Child("parameters").Index(i)
if param.Generate != "" {
generator, ok := p.Generators[param.Generate]
if !ok {
return field.NotFound(templatePath, param)
}
if generator == nil {
err := fmt.Errorf("template.parameters[%v]: Invalid '%v' generator for parameter %s", i, param.Generate, param.Name)
return field.Invalid(templatePath, param, err.Error())
}
value, err := generator.GenerateValue(param.From)
if err != nil {
return field.Invalid(templatePath, param, err.Error())
}
param.Value, ok = value.(string)
if !ok {
err := fmt.Errorf("template.parameters[%v]: Unable to convert the generated value '%#v' to string for parameter %s", i, value, param.Name)
return field.Invalid(templatePath, param, err.Error())
}
}
if len(param.Value) == 0 && param.Required {
err := fmt.Errorf("template.parameters[%v]: parameter %s is required and must be specified", i, param.Name)
return field.Required(templatePath, err.Error())
}
}
return nil
}
// findStreamForMapping retrieves an ImageStream whose DockerImageRepository matches dockerRepo.
func (s *REST) findStreamForMapping(ctx kapi.Context, mapping *api.ImageStreamMapping) (*api.ImageStream, error) {
if len(mapping.Name) > 0 {
return s.imageStreamRegistry.GetImageStream(ctx, mapping.Name)
}
if len(mapping.DockerImageRepository) != 0 {
list, err := s.imageStreamRegistry.ListImageStreams(ctx, &kapi.ListOptions{})
if err != nil {
return nil, err
}
for i := range list.Items {
if mapping.DockerImageRepository == list.Items[i].Spec.DockerImageRepository {
return &list.Items[i], nil
}
}
return nil, errors.NewInvalid(api.Kind("ImageStreamMapping"), "", field.ErrorList{
field.NotFound(field.NewPath("dockerImageStream"), mapping.DockerImageRepository),
})
}
return nil, errors.NewNotFound(api.Resource("imagestream"), "")
}
func TestNewInvalid(t *testing.T) {
testCases := []struct {
Err *field.Error
Details *unversioned.StatusDetails
}{
{
field.Duplicate(field.NewPath("field[0].name"), "bar"),
&unversioned.StatusDetails{
Kind: "kind",
Name: "name",
Causes: []unversioned.StatusCause{{
Type: unversioned.CauseTypeFieldValueDuplicate,
Field: "field[0].name",
}},
},
},
{
field.Invalid(field.NewPath("field[0].name"), "bar", "detail"),
&unversioned.StatusDetails{
Kind: "kind",
Name: "name",
Causes: []unversioned.StatusCause{{
Type: unversioned.CauseTypeFieldValueInvalid,
Field: "field[0].name",
}},
},
},
{
field.NotFound(field.NewPath("field[0].name"), "bar"),
&unversioned.StatusDetails{
Kind: "kind",
Name: "name",
Causes: []unversioned.StatusCause{{
Type: unversioned.CauseTypeFieldValueNotFound,
Field: "field[0].name",
}},
},
},
{
field.NotSupported(field.NewPath("field[0].name"), "bar", nil),
&unversioned.StatusDetails{
Kind: "kind",
Name: "name",
Causes: []unversioned.StatusCause{{
Type: unversioned.CauseTypeFieldValueNotSupported,
Field: "field[0].name",
}},
},
},
{
field.Required(field.NewPath("field[0].name")),
&unversioned.StatusDetails{
Kind: "kind",
Name: "name",
Causes: []unversioned.StatusCause{{
Type: unversioned.CauseTypeFieldValueRequired,
Field: "field[0].name",
}},
},
},
}
for i, testCase := range testCases {
vErr, expected := testCase.Err, testCase.Details
expected.Causes[0].Message = vErr.ErrorBody()
err := NewInvalid("kind", "name", field.ErrorList{vErr})
status := err.(*StatusError).ErrStatus
if status.Code != 422 || status.Reason != unversioned.StatusReasonInvalid {
t.Errorf("%d: unexpected status: %#v", i, status)
}
if !reflect.DeepEqual(expected, status.Details) {
t.Errorf("%d: expected %#v, got %#v", i, expected, status.Details)
}
}
}
// tagsChanged updates stream.Status.Tags based on the old and new image stream.
// if the old stream is nil, all tags are considered additions.
func (s Strategy) tagsChanged(old, stream *api.ImageStream) field.ErrorList {
var errs field.ErrorList
oldTags := map[string]api.TagReference{}
if old != nil && old.Spec.Tags != nil {
oldTags = old.Spec.Tags
}
for tag, tagRef := range stream.Spec.Tags {
if oldRef, ok := oldTags[tag]; ok && !tagRefChanged(oldRef, tagRef, stream.Namespace) {
continue
}
if tagRef.From == nil {
continue
}
glog.V(5).Infof("Detected changed tag %s in %s/%s", tag, stream.Namespace, stream.Name)
generation := stream.Generation
tagRef.Generation = &generation
fromPath := field.NewPath("spec", "tags").Key(tag).Child("from")
if tagRef.From.Kind == "DockerImage" && len(tagRef.From.Name) > 0 {
if tagRef.Reference {
event, err := tagReferenceToTagEvent(stream, tagRef, "")
if err != nil {
errs = append(errs, field.Invalid(fromPath, tagRef.From, err.Error()))
continue
}
stream.Spec.Tags[tag] = tagRef
api.AddTagEventToImageStream(stream, tag, *event)
}
continue
}
tagRefStreamName, tagOrID, err := parseFromReference(stream, tagRef.From)
if err != nil {
errs = append(errs, field.Invalid(fromPath.Child("name"), tagRef.From.Name, "must be of the form <tag>, <repo>:<tag>, <id>, or <repo>@<id>"))
continue
}
streamRef := stream
streamRefNamespace := tagRef.From.Namespace
if len(streamRefNamespace) == 0 {
streamRefNamespace = stream.Namespace
}
if streamRefNamespace != stream.Namespace || tagRefStreamName != stream.Name {
obj, err := s.ImageStreamGetter.Get(kapi.WithNamespace(kapi.NewContext(), streamRefNamespace), tagRefStreamName)
if err != nil {
if kerrors.IsNotFound(err) {
errs = append(errs, field.NotFound(fromPath.Child("name"), tagRef.From.Name))
} else {
errs = append(errs, field.Invalid(fromPath.Child("name"), tagRef.From.Name, fmt.Sprintf("unable to retrieve image stream: %v", err)))
}
continue
}
streamRef = obj.(*api.ImageStream)
}
event, err := tagReferenceToTagEvent(streamRef, tagRef, tagOrID)
if err != nil {
errs = append(errs, field.Invalid(fromPath.Child("name"), tagRef.From.Name, fmt.Sprintf("error generating tag event: %v", err)))
continue
}
if event == nil {
// referenced tag or ID doesn't exist, which is ok
continue
}
stream.Spec.Tags[tag] = tagRef
api.AddTagEventToImageStream(stream, tag, *event)
}
api.UpdateChangedTrackingTags(stream, old)
// use a consistent timestamp on creation
if old == nil && !stream.CreationTimestamp.IsZero() {
for tag, list := range stream.Status.Tags {
for _, event := range list.Items {
event.Created = stream.CreationTimestamp
}
stream.Status.Tags[tag] = list
}
}
return errs
}
