59 lines
1.9 KiB
Go
59 lines
1.9 KiB
Go
/*
|
|
Copyright 2021 Intel Corporation
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package kubernetes
|
|
|
|
// ClassOrigin type indicates the source of container's class
|
|
// information: whether it is found from CRI level container
|
|
// annotations, Kubernetes' pod annotations, or it has not been found
|
|
// at all.
|
|
type ClassOrigin int
|
|
|
|
const (
|
|
ClassOriginNotFound ClassOrigin = iota
|
|
ClassOriginContainerAnnotation
|
|
ClassOriginPodAnnotation
|
|
)
|
|
|
|
func (c ClassOrigin) String() string {
|
|
switch c {
|
|
case ClassOriginNotFound:
|
|
return "<not found>"
|
|
case ClassOriginContainerAnnotation:
|
|
return "container annotations"
|
|
case ClassOriginPodAnnotation:
|
|
return "pod annotations"
|
|
default:
|
|
return "<unknown>"
|
|
}
|
|
}
|
|
|
|
// ContainerClassFromAnnotations determines the effective class of a
|
|
// container from the Pod annotations and CRI level container
|
|
// annotations of a container.
|
|
func ContainerClassFromAnnotations(containerAnnotation, podAnnotation, podAnnotationContainerPrefix string, containerName string, containerAnnotations, podAnnotations map[string]string) (string, ClassOrigin) {
|
|
if clsName, ok := containerAnnotations[containerAnnotation]; ok {
|
|
return clsName, ClassOriginContainerAnnotation
|
|
}
|
|
if clsName, ok := podAnnotations[podAnnotationContainerPrefix+containerName]; ok {
|
|
return clsName, ClassOriginPodAnnotation
|
|
}
|
|
if clsName, ok := podAnnotations[podAnnotation]; ok {
|
|
return clsName, ClassOriginPodAnnotation
|
|
}
|
|
return "", ClassOriginNotFound
|
|
}
|