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Copy pathinject.go
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61 lines (52 loc) · 1.61 KB
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package testutil
import (
"fmt"
"strings"
jsonpatch "github.com/evanphx/json-patch"
"github.com/linkerd/linkerd2/pkg/k8s"
v1 "k8s.io/api/core/v1"
"sigs.k8s.io/yaml"
)
func applyPatch(in string, patchJSON []byte) (string, error) {
patch, err := jsonpatch.DecodePatch(patchJSON)
if err != nil {
return "", err
}
json, err := yaml.YAMLToJSON([]byte(in))
if err != nil {
return "", err
}
patched, err := patch.Apply(json)
if err != nil {
return "", err
}
return string(patched), nil
}
// PatchDeploy patches a manifest by applying annotations
func PatchDeploy(in string, name string, annotations map[string]string) (string, error) {
ops := []string{
fmt.Sprintf(`{"op": "replace", "path": "/metadata/name", "value": "%s"}`, name),
fmt.Sprintf(`{"op": "replace", "path": "/spec/selector/matchLabels/app", "value": "%s"}`, name),
fmt.Sprintf(`{"op": "replace", "path": "/spec/template/metadata/labels/app", "value": "%s"}`, name),
}
if len(annotations) > 0 {
ops = append(ops, `{"op": "add", "path": "/spec/template/metadata/annotations", "value": {}}`)
for k, v := range annotations {
ops = append(ops,
fmt.Sprintf(`{"op": "add", "path": "/spec/template/metadata/annotations/%s", "value": "%s"}`, strings.ReplaceAll(k, "/", "~1"), v),
)
}
}
patchJSON := []byte(fmt.Sprintf("[%s]", strings.Join(ops, ",")))
return applyPatch(in, patchJSON)
}
// GetProxyContainer get the proxy containers
func GetProxyContainer(containers []v1.Container) *v1.Container {
for _, c := range containers {
container := c
if container.Name == k8s.ProxyContainerName {
return &container
}
}
return nil
}