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config/crds/core.kubeadmiral.io_clusteroverridepolicies.yaml
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,181 @@ | ||
| /* | ||
| Copyright 2023 The KubeAdmiral Authors. | ||
| 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 override | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "strconv" | ||
| "strings" | ||
|
|
||
| "github.com/distribution/reference" | ||
| "k8s.io/apimachinery/pkg/apis/meta/v1/unstructured" | ||
|
|
||
| utilreference "github.com/kubewharf/kubeadmiral/pkg/lifted/distribution/reference" | ||
| ) | ||
|
|
||
| type Image struct { | ||
| registry string | ||
| repository string | ||
| tag string | ||
| digest string | ||
| } | ||
|
|
||
| func (i *Image) OperateRegistry(operator, value string) { | ||
| switch operator { | ||
| case OperatorAdd: | ||
| i.registry += value | ||
| case OperatorReplace: | ||
| i.registry = value | ||
| case OperatorRemove: | ||
| i.registry = "" | ||
| } | ||
| } | ||
|
|
||
| func (i *Image) OperateRepository(operator, value string) { | ||
| switch operator { | ||
| case OperatorAdd: | ||
| i.repository += value | ||
| case OperatorReplace: | ||
| i.repository = value | ||
| case OperatorRemove: | ||
| i.repository = "" | ||
| } | ||
| } | ||
|
|
||
| func (i *Image) OperateTag(operator, value string) error { | ||
| var newTag string | ||
| switch operator { | ||
| case OperatorAdd: | ||
| newTag = i.tag + value | ||
| case OperatorReplace: | ||
| newTag = value | ||
| case OperatorRemove: | ||
| newTag = "" | ||
| } | ||
|
|
||
| if operator != OperatorRemove && !utilreference.AnchoredTagRegexp.MatchString(newTag) { | ||
| return fmt.Errorf("invalid tag format after applying the overrider") | ||
| } | ||
|
|
||
| i.tag = newTag | ||
| return nil | ||
| } | ||
|
|
||
| func (i *Image) OperateDigest(operator, value string) error { | ||
| var newDigest string | ||
| switch operator { | ||
| case OperatorAdd: | ||
| newDigest = i.digest + value | ||
| case OperatorReplace: | ||
| newDigest = value | ||
| case OperatorRemove: | ||
| newDigest = "" | ||
| } | ||
|
|
||
| if operator != OperatorRemove && !utilreference.AnchoredDigestRegexp.MatchString(newDigest) { | ||
| return fmt.Errorf("invalid digest format after applying the overrider") | ||
| } | ||
|
|
||
| i.digest = newDigest | ||
| return nil | ||
| } | ||
|
|
||
| func (i *Image) String() string { | ||
| fullName := i.repository | ||
|
|
||
| if i.registry != "" { | ||
| fullName = i.registry + "/" + i.repository | ||
| } | ||
|
|
||
| if i.tag != "" { | ||
| fullName = fullName + ":" + i.tag | ||
| } | ||
|
|
||
| if i.digest != "" { | ||
| fullName = fullName + "@" + i.digest | ||
| } | ||
|
|
||
| return fullName | ||
| } | ||
|
|
||
| // ParseImage returns an Image from the given string. | ||
| func ParseImage(fullName string) (*Image, error) { | ||
| ref, err := reference.Parse(fullName) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| image := &Image{} | ||
| if named, ok := ref.(reference.Named); ok { | ||
| image.registry, image.repository = SplitRegistryAndRepository(named.Name()) | ||
| } | ||
|
|
||
| if tagged, ok := ref.(reference.Tagged); ok { | ||
| image.tag = tagged.Tag() | ||
| } | ||
|
|
||
| if digested, ok := ref.(reference.Digested); ok { | ||
| image.digest = digested.Digest().String() | ||
| } | ||
|
|
||
| return image, nil | ||
| } | ||
|
|
||
| func SplitRegistryAndRepository(name string) (registry, repository string) { | ||
| i := strings.IndexRune(name, '/') | ||
| if i == -1 || (!strings.ContainsAny(name[:i], ".:") && name[:i] != "localhost") { | ||
| registry, repository = "", name | ||
| } else { | ||
| registry, repository = name[:i], name[i+1:] | ||
| } | ||
| return | ||
| } | ||
|
|
||
| func ParseValueFromUnstructuredObj(input *unstructured.Unstructured, path string) (string, error) { | ||
| segments := strings.Split(strings.Trim(path, pathSeparator), pathSeparator) | ||
| currentObj := input.Object | ||
|
|
||
| for i := 0; i < len(segments)-1; i++ { | ||
| segment := segments[i] | ||
| switch obj := currentObj[segment].(type) { | ||
| case map[string]interface{}: | ||
| currentObj = obj | ||
| case []interface{}: | ||
| index, err := strconv.ParseInt(segments[i+1], 10, 32) | ||
| if err != nil { | ||
| return "", fmt.Errorf("%s requires the field to be an array, found %T instead", strings.Join(segments[:i+2], "/"), obj) | ||
| } | ||
| if index < 0 || int(index) >= len(obj) { | ||
| return "", fmt.Errorf("index(%d) is negative or out of range", index) | ||
| } | ||
| currentObj = obj[index].(map[string]interface{}) | ||
| i++ | ||
| default: | ||
| return "", fmt.Errorf( | ||
| "%s requires the field to be an map[string]interface{} or []interface{}, found %T instead", | ||
| strings.Join(segments[:i+1], "/"), | ||
| obj, | ||
| ) | ||
| } | ||
| } | ||
|
|
||
| value, ok := currentObj[segments[len(segments)-1]].(string) | ||
| if !ok { | ||
| return "", fmt.Errorf("imagePath %q does not point to a string field", path) | ||
| } | ||
| return value, nil | ||
| } |
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